Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
95
datasets available to search
ShareScore release 0.7.1
Dataset results
95 results for “STEAM”
¿Qué busca un usuario de Steam?
<p>El dataset se compone de información clave sobre videojuegos registrados en la plataforma Steam. Estos datos incluyen el título del juego, la desarrolladora, la distribuidora, la fecha de lanzamiento, las etiquetas asociadas, la calidad conjunta de las reseñas y la cantidad de las mismas. Nuestro objetivo al recopilar estos datos es proporcionar una visión general de las tendencias en el mundo de los videojuegos, permitiendo un análisis de los cambios en las preferencias de los consumidores a lo largo del tiempo.</p>
Steam Hammer Base
One of 3 steam hammer bases (anvils) at Wellington Park, Royal Arsenal, Woolwich, London. From the attached plaque: "The Shell Foundry was built in 1855 when advances in steam power saw the Royal Arsenal transformed from the era of craft workshop to vast industrial park. The steam hammers were the largest and most powerful in the world at that time, delivering blows to iron and steel, shaping and strengthening metal objects. Operation of the hammers commenced at the Royal Arsenal in 1874, during a visit from the Czar of Russia. The hammers were purchased for the equivalent of today's value, £50,000; reaching 45ft high and covering an area 120 sq ft with iron blocks sunk 30 feet into the ground. 19 July 2004 - Berkeley Homes undertook one of the biggest operations since redevelopment began at the Royal Arsenal, moving these steam hammer bases into their final resting place. The largest base weighs 70 tonnes." 159 photos taken in November 2019 with a Sony a6000 and processed in Reality Capture. Source: Objaverse 1.0 / Sketchfab
Steam Powered Wagon
A steam powered western wagon. Likely put together by an engineer and the western era. No textures. Source: Objaverse 1.0 / Sketchfab
Model of the Watt Steam Engine with animation
Eugène Bourdon (1808–1884) – artist / maker ca. 1835, Paris A nineteenth-century model of the Watt steam engine. It allowed to demonstrate the principle of the steam engine's operation by mechanically turning a flywheel and connecting the machinery to an external source of steam or compressed gas. For more images and further information, visit: https://muzea.malopolska.pl/en/objects-list/2763 Inventory number: 4988; 993/V Localisation of the physical object: Jagiellonian University Museum, Collegium Maius, Kraków, Poland Digitalisation: Regional Digitalisation Lab, Małopolska Institute of Culture in Kraków, Poland; "Virtual Museums of Małopolska" Project 3D model & animation by Stanisław Ogarek as a diploma work at Tischner European University. Source: Objaverse 1.0 / Sketchfab
Steam Donkey
Found at the train yard of the Mt. Rainier RR in Mineral. Includes zip file with the High Poly Raw Scan. Source: Objaverse 1.0 / Sketchfab
Listado de juegos ofertados en Steam
<p><strong>El dataset cuenta con 7 atributos relacionados con los juegos encontrados en la web de Steam el día que se realiza la búsqueda. Las columnas son las siguientes: nombre, enlace en la web de Steam, precio, categorías, oferta (indica si está o no en oferta), porcentaje de descuento y el número de reviews o comentarios.</strong></p>
Evolutionary tracks for Steam Worlds
<h3>Evolutionary tracks from the Steam Worlds Evolution (SWE) model (Aguichine et al. 2025, in prep).</h3> <p>Link to manuscript: <a href="https://arxiv.org/abs/2412.17945" target="_blank" rel="noopener">https://arxiv.org/abs/2412.17945</a></p> <p><strong>Model summary:</strong><br>Earth-like core (32.5% iron-sulfur alloy, 67.5% mantle with Earth-like Fe/Si ratio)<br>Pure H2O envelope and pure H2O atmosphere connected at P_b = 1000 bar<br><br><strong>Parameters:</strong><br>ST: Stellar Type (M or G), for radiative transfer in the atmosphere<br>WMF: Water Mass Fraction, between 0.001 and 1<br>T_eq: Equilibrium temperature (K), between 500 K and 700 K<br>M_p: Planet mass (M_e), between 0.2 M_E and 20.0 M_E<br>Age: Host star age (Gyr), between 0.01 Gyr and 20 Gyr, assuming the planet formed at t_0 = 10 Myr (can be adjusted)<br><br><strong>Model outputs:</strong><br>R_b: Planet radius (R_E) at 1000 bar<br>R_b: Planet radius (R_E) at 20 mbar, pressure level where pure steam is opaque at 1 micron<br>R_b: Planet radius (R_E) at 1 µbar, pressure level of aerosols/haze formation<br>T_b: Temperature (K) at 1000 bar)<br>T_int: Intrinsic temperature (K), nominal values are between 10 K and 400 K<br>s_env: Specific entropy of H2O in the envelope (in J/K/kg)<br>I/MR^2: Moment of inertia factor<br><br><strong>Sources of energy for the cooling, expressed as luminosities (in W):</strong><br>L_env: energy from the H2O envelope (thermal + gravitational)<br>L_rad: radiogenic heat produced in the core<br>L_core: thermal energy of the core<br>L_grav: gravitational energy of the core<br>u_tot: total energy of the planet (J), obtained by fully integrating thermal (cp*T*dm) and gravitational energy<br><br><br><strong>By construction:</strong><br>L_env + L_rad + L_core + L_grav = (4 * Pi * R_p**2) * (sigma_SB * T_int**4)<br>d u_tot / d t = -L_int + L_rad <br><br><strong>NB:</strong> The last line of each track represents an estimate of the time until "full exhaustion" (see paper for details).</p>
Design principles an autothermal steam reforming chemical reactor with enhanced heat transfer
<p><strong>Design principles an autothermal steam reforming chemical reactor with enhanced heat transfer</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>Heat transfer is any or all of several kinds of phenomena, considered as mechanisms, that convey energy and entropy from one location to another. The specific mechanisms are usually referred to as convection, thermal radiation, and conduction. Conduction involves transfer of energy and entropy between adjacent molecules, usually a slow process. Convection involves movement of a heated fluid, such as air, usually a fairly rapid process. Radiation refers to the transmission of energy as electromagnetic radiation from its emission at a heated surface to its absorption on another surface, a process requiring no medium to convey the energy. thermal conduction, transfer of energy (heat) arising from temperature differences between adjacent parts of a body. Thermal conductivity is attributed to the exchange of energy between adjacent molecules and electrons in the conducting medium. The rate of heat flow in a rod of material is proportional to the cross-sectional area of the rod and to the temperature difference between the ends and inversely proportional to the length; that is the rate equals the ratio of the cross section of the rod to its length, multiplied by the temperature difference and by the thermal conductivity of the material.</p> <p>Streamwise distance (millimeters), Reforming channel centerline temperature (degrees kelvin)</p> <p>0 373</p> <p>0.00025 373.005</p> <p>0.0005 373.032</p> <p>0.00075 373.127</p> <p>0.001 373.373</p> <p>0.00125 373.864</p> <p>0.0015 374.687</p> <p>0.00175 375.89</p> <p>0.002 377.487</p> <p>0.00225 379.459</p> <p>0.0025 381.763</p> <p>0.00275 384.345</p> <p>0.003 387.146</p> <p>0.00325 390.107</p> <p>0.0035 393.179</p> <p>0.00375 396.314</p> <p>0.004 399.476</p> <p>0.00425 402.634</p> <p>0.0045 405.763</p> <p>0.00475 408.845</p> <p>0.005 411.863</p> <p>0.00525 414.809</p> <p>0.0055 417.674</p> <p>0.00575 420.453</p> <p>0.006 423.144</p> <p>0.00625 425.743</p> <p>0.0065 428.252</p> <p>0.00675 430.67</p> <p>0.007 432.998</p> <p>0.00725 435.239</p> <p>0.0075 437.395</p> <p>0.00775 439.468</p> <p>0.008 441.46</p> <p>0.00825 443.375</p> <p>0.0085 445.215</p> <p>0.00875 446.983</p> <p>0.009 448.682</p> <p>0.00925 450.315</p> <p>0.0095 451.885</p> <p>0.00975 453.393</p> <p>0.01 454.844</p> <p>0.01025 456.239</p> <p>0.0105 457.58</p> <p>0.01075 458.87</p> <p>0.011 460.112</p> <p>0.01125 461.306</p> <p>0.0115 462.457</p> <p>0.01175 463.564</p> <p>0.012 464.631</p> <p>0.01225 465.659</p> <p>0.0125 466.65</p> <p>0.01275 467.605</p> <p>0.013 468.525</p> <p>0.01325 469.414</p> <p>0.0135 470.271</p> <p>0.01375 471.098</p> <p>0.014 471.897</p> <p>0.01425 472.668</p> <p>0.0145 473.413</p> <p>0.01475 474.133</p> <p>0.015 474.829</p> <p>0.01525 475.502</p> <p>0.0155 476.153</p> <p>0.01575 476.783</p> <p>0.016 477.393</p> <p>0.01625 477.983</p> <p>0.0165 478.555</p> <p>0.01675 479.108</p> <p>0.017 479.644</p> <p>0.01725 480.164</p> <p>0.0175 480.669</p> <p>0.01775 481.158</p> <p>0.018 481.633</p> <p>0.01825 482.093</p> <p>0.0185 482.541</p> <p>0.01875 482.975</p> <p>0.019 483.397</p> <p>0.01925 483.808</p> <p>0.0195 484.206</p> <p>0.01975 484.594</p> <p>0.02 484.972</p> <p>0.02025 485.339</p> <p>0.0205 485.696</p> <p>0.02075 486.045</p> <p>0.021 486.384</p> <p>0.02125 486.714</p> <p>0.0215 487.036</p> <p>0.02175 487.35</p> <p>0.022 487.657</p> <p>0.02225 487.956</p> <p>0.0225 488.247</p> <p>0.02275 488.533</p> <p>0.023 488.811</p> <p>0.02325 489.083</p> <p>0.0235 489.349</p> <p>0.02375 489.609</p> <p>0.024 489.864</p> <p>0.02425 490.112</p> <p>0.0245 490.356</p> <p>0.02475 490.595</p> <p>0.025 490.828</p> <p>0.02525 491.057</p> <p>0.0255 491.281</p> <p>0.02575 491.501</p> <p>0.026 491.716</p> <p>0.02625 491.927</p> <p>0.0265 492.134</p> <p>0.02675 492.337</p> <p>0.027 492.536</p> <p>0.02725 492.732</p> <p>0.0275 492.923</p> <p>0.02775 493.111</p> <p>0.028 493.296</p> <p>0.02825 493.477</p> <p>0.0285 493.655</p> <p>0.02875 493.829</p> <p>0.029 494</p> <p>0.02925 494.171</p> <p>0.0295 494.323</p> <p>0.02975 494.536</p> <p>0.03 494.685</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Process intensification in a methanol steam reforming chemical reactor with enhanced momentum transport
<p><strong>Process intensification in a methanol steam reforming chemical reactor with enhanced momentum transport</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>Consideration must be given to the rate at which each step in the planned sequence occurs. In many instances, a desired reaction is possible in principle but in practice takes place so slowly as to be ineffective. It is then necessary to investigate whether the rate can be increased to a practicable level by altering the conditions of the reaction, for example, by raising the temperature or by adding an extra species, called a catalyst, that increases the rate without altering the course of the reaction.</p> <p>Streamwise distance (millimeters), Oxidation channel centerline temperature (degrees kelvin)</p> <p>0 376.499</p> <p>0.00025 391.55</p> <p>0.0005 411.347</p> <p>0.00075 432.857</p> <p>0.001 451.349</p> <p>0.00125 465.437</p> <p>0.0015 475.536</p> <p>0.00175 482.591</p> <p>0.002 487.466</p> <p>0.00225 490.805</p> <p>0.0025 493.063</p> <p>0.00275 494.556</p> <p>0.003 495.508</p> <p>0.00325 496.074</p> <p>0.0035 496.366</p> <p>0.00375 496.469</p> <p>0.004 496.424</p> <p>0.00425 496.278</p> <p>0.0045 496.077</p> <p>0.00475 495.832</p> <p>0.005 495.555</p> <p>0.00525 495.26</p> <p>0.0055 494.955</p> <p>0.00575 494.646</p> <p>0.006 494.337</p> <p>0.00625 494.033</p> <p>0.0065 493.735</p> <p>0.00675 493.445</p> <p>0.007 493.164</p> <p>0.00725 492.894</p> <p>0.0075 492.635</p> <p>0.00775 492.386</p> <p>0.008 492.15</p> <p>0.00825 491.925</p> <p>0.0085 491.712</p> <p>0.00875 491.511</p> <p>0.009 491.323</p> <p>0.00925 491.146</p> <p>0.0095 490.98</p> <p>0.00975 490.825</p> <p>0.01 490.682</p> <p>0.01025 490.549</p> <p>0.0105 490.427</p> <p>0.01075 490.314</p> <p>0.011 490.212</p> <p>0.01125 490.119</p> <p>0.0115 490.036</p> <p>0.01175 489.96</p> <p>0.012 489.893</p> <p>0.01225 489.833</p> <p>0.0125 489.781</p> <p>0.01275 489.737</p> <p>0.013 489.699</p> <p>0.01325 489.668</p> <p>0.0135 489.643</p> <p>0.01375 489.624</p> <p>0.014 489.61</p> <p>0.01425 489.603</p> <p>0.0145 489.6</p> <p>0.01475 489.601</p> <p>0.015 489.607</p> <p>0.01525 489.618</p> <p>0.0155 489.632</p> <p>0.01575 489.651</p> <p>0.016 489.673</p> <p>0.01625 489.699</p> <p>0.0165 489.728</p> <p>0.01675 489.76</p> <p>0.017 489.796</p> <p>0.01725 489.834</p> <p>0.0175 489.875</p> <p>0.01775 489.918</p> <p>0.018 489.964</p> <p>0.01825 490.012</p> <p>0.0185 490.063</p> <p>0.01875 490.115</p> <p>0.019 490.169</p> <p>0.01925 490.225</p> <p>0.0195 490.283</p> <p>0.01975 490.343</p> <p>0.02 490.404</p> <p>0.02025 490.467</p> <p>0.0205 490.531</p> <p>0.02075 490.597</p> <p>0.021 490.663</p> <p>0.02125 490.731</p> <p>0.0215 490.8</p> <p>0.02175 490.869</p> <p>0.022 490.94</p> <p>0.02225 491.011</p> <p>0.0225 491.083</p> <p>0.02275 491.155</p> <p>0.023 491.228</p> <p>0.02325 491.301</p> <p>0.0235 491.374</p> <p>0.02375 491.448</p> <p>0.024 491.521</p> <p>0.02425 491.595</p> <p>0.0245 491.668</p> <p>0.02475 491.741</p> <p>0.025 491.813</p> <p>0.02525 491.885</p> <p>0.0255 491.955</p> <p>0.02575 492.025</p> <p>0.026 492.094</p> <p>0.02625 492.161</p> <p>0.0265 492.228</p> <p>0.02675 492.292</p> <p>0.027 492.355</p> <p>0.02725 492.415</p> <p>0.0275 492.474</p> <p>0.02775 492.529</p> <p>0.028 492.583</p> <p>0.02825 492.633</p> <p>0.0285 492.68</p> <p>0.02875 492.724</p> <p>0.029 492.764</p> <p>0.02925 492.801</p> <p>0.0295 492.832</p> <p>0.02975 492.863</p> <p>0.03 492.881</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Simple Steam Engine (GWR 4300)
Not too familiar with railway makers but this is a Birdcage 43xx based on the amazing blueprints I found here: http://www.greatwestern.org.uk I don't care if you give attribution, just have fun with this. There's a real lack of steam locomotives on this site and we GOTTA FIX IT, MAN! Definitely not perfect (and its missing the tinder) but it's still pretty good. Topology isn't amazing but hey doesn't it look great in a render? (tho the topology is probably terrible because of the crew cabin and the main assembly. Just serparate everything and it can probably be fixed, but everything works pretty well if its all just merged together.) Source: Objaverse 1.0 / Sketchfab
Information board of the Fablok steam locomotive
The first Locomotive Factory in Poland "Fablok" S.A. – manufactory Time and place of creation: 1928, Chrzanów, Poland Inventory number: Mch-S/3506 Museum: Irena and Mieczysław Mazaraki Museum in Chrzanów https://muzea.malopolska.pl/pl/lista-obiektow/2717 Digitalisation: RDW MIC, Virtual Małopolska project Source: Objaverse 1.0 / Sketchfab
John Fowler & Co Steam Roller No. 16946
Steam Roller by John Fowler & Co, model No. 16946, on exhibit in the Santa Caterina Park in Funchal, Madeira. Created in RealityCapture by Capturing Reality from 103 images in 01h:28m:22s. Source: Objaverse 1.0 / Sketchfab
Simple Steam Engine 3 (GWR 4400 Class)
After 10 incredibly long months, I'm proud to present yet another low=poly steam engine. It was an interesting experience getting back into modelling, and I'd like to thing that this came out pretty well. The railing is a little wonky so i may revist this model in the future, but it should be sufficient for your digital steam engine needs... whatever those are. As always, the cabin was the hardest part to get right, but by the grace of God it came out alright. It may not have been the best decision to combine the smokebox and crew cabin, but I wanted to avoid Z-fighting in the final product. Source: Objaverse 1.0 / Sketchfab
Catalytic reaction processes using microchannel technology for hydrogen production by steam reforming
<p><strong>Catalytic reaction processes using microchannel technology for hydrogen production by steam reforming</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>Two competing proposals have been made concerning the mechanism of catalytic reactions at surfaces, and it has not been possible to choose between them. Originally, Irving Langmuir, an American physical chemist, proposed chemisorption of both reacting species at the surface, followed by interaction between adjacent species and evaporation of the products. An alternative proposal involves interaction between an impinging molecule and species already adsorbed on the surface. Subsequent developments have suggested various modes of attachment of the adsorbed and adsorbing species. A major advance in the science of surface catalysis was the development of a method for determining the surface area of catalysts (and other materials) by measuring the multimolecular adsorption of nitrogen at liquid nitrogen temperatures or the adsorption of other gases close to their boiling points. It then became possible to calculate a quantity that represents the volume of gas necessary to form a monolayer on the accessible surface; furthermore, the area of the surface can be determined from the known dimensions of the adsorbed molecules. It has also been found possible to titrate (measure quantitatively) the area of surfaces by chemisorption of gases. Since heterogeneously catalyzed reactions occur on the surface of the catalyst, the rates of such reactions are proportional to the accessible surface area of the catalyst. Active catalysts are thus usually highly porous solids with total surface areas as high as several hundred square metres per gram. When measurements of surface areas became possible, it was seen at once that many constituents present in minor quantities in the main catalyst material, known as promoters, could act by extending the effective surface area of the catalyst. It also was shown, however, that a promoter might produce an increase in the quality of the surface for the given reaction. Acting in a reverse direction are minor constituents of the reacting system or unwanted products of the reaction, which by preferential adsorption on the reaction sites. Poisoning of a catalyst may also result from the poison adversely modifying the electronic properties of the catalyst.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 12.5259</p> <p>0.00025 12.5249</p> <p>0.0005 12.4628</p> <p>0.00075 12.2996</p> <p>0.001 12.0712</p> <p>0.00125 11.8221</p> <p>0.0015 11.596</p> <p>0.00175 11.4118</p> <p>0.002 11.2616</p> <p>0.00225 11.1177</p> <p>0.0025 10.9536</p> <p>0.00275 10.759</p> <p>0.003 10.5398</p> <p>0.00325 10.3175</p> <p>0.0035 10.1169</p> <p>0.00375 9.94876</p> <p>0.004 9.80787</p> <p>0.00425 9.67857</p> <p>0.0045 9.54646</p> <p>0.00475 9.40536</p> <p>0.005 9.25748</p> <p>0.00525 9.11421</p> <p>0.0055 8.98858</p> <p>0.00575 8.88572</p> <p>0.006 8.80178</p> <p>0.00625 8.72615</p> <p>0.0065 8.64819</p> <p>0.00675 8.5635</p> <p>0.007 8.47426</p> <p>0.00725 8.38872</p> <p>0.0075 8.31553</p> <p>0.00775 8.2578</p> <p>0.008 8.21239</p> <p>0.00825 8.17077</p> <p>0.0085 8.1251</p> <p>0.00875 8.07247</p> <p>0.009 8.01529</p> <p>0.00925 7.9603</p> <p>0.0095 7.91452</p> <p>0.00975 7.88049</p> <p>0.01 7.85474</p> <p>0.01025 7.83035</p> <p>0.0105 7.80092</p> <p>0.01075 7.76453</p> <p>0.011 7.72333</p> <p>0.01125 7.68313</p> <p>0.0115 7.65017</p> <p>0.01175 7.62633</p> <p>0.012 7.60882</p> <p>0.01225 7.59146</p> <p>0.0125 7.5688</p> <p>0.01275 7.53904</p> <p>0.013 7.50421</p> <p>0.01325 7.4698</p> <p>0.0135 7.4414</p> <p>0.01375 7.42087</p> <p>0.014 7.40548</p> <p>0.01425 7.38911</p> <p>0.0145 7.36723</p> <p>0.01475 7.33882</p> <p>0.015 7.30582</p> <p>0.01525 7.27313</p> <p>0.0155 7.24519</p> <p>0.01575 7.22352</p> <p>0.016 7.20619</p> <p>0.01625 7.18805</p> <p>0.0165 7.16393</p> <p>0.01675 7.13321</p> <p>0.017 7.09884</p> <p>0.01725 7.06502</p> <p>0.0175 7.03546</p> <p>0.01775 7.01145</p> <p>0.018 6.99108</p> <p>0.01825 6.96922</p> <p>0.0185 6.94195</p> <p>0.01875 6.90861</p> <p>0.019 6.8712</p> <p>0.01925 6.83338</p> <p>0.0195 6.79882</p> <p>0.01975 6.76887</p> <p>0.02 6.74161</p> <p>0.02025 6.71249</p> <p>0.0205 6.67791</p> <p>0.02075 6.63756</p> <p>0.021 6.59338</p> <p>0.02125 6.54862</p> <p>0.0215 6.50642</p> <p>0.02175 6.46809</p> <p>0.022 6.43121</p> <p>0.02225 6.39171</p> <p>0.0225 6.34695</p> <p>0.02275 6.29666</p> <p>0.023 6.24214</p> <p>0.02325 6.18634</p> <p>0.0235 6.13241</p> <p>0.02375 6.0807</p> <p>0.024 6.02879</p> <p>0.02425 5.9737</p> <p>0.0245 5.9136</p> <p>0.02475 5.84831</p> <p>0.025 5.779</p> <p>0.02525 5.70789</p> <p>0.0255 5.63732</p> <p>0.02575 5.56765</p> <p>0.026 5.49729</p> <p>0.02625 5.42368</p> <p>0.0265 5.34518</p> <p>0.02675 5.26167</p> <p>0.027 5.17445</p> <p>0.02725 5.08554</p> <p>0.0275 4.99626</p> <p>0.02775 4.90677</p> <p>0.028 4.81571</p> <p>0.02825 4.7225</p> <p>0.0285 4.62433</p> <p>0.02875 4.52329</p> <p>0.029 4.40952</p> <p>0.02925 4.30083</p> <p>0.0295 4.20122</p> <p>0.02975 4.10465</p> <p>0.03 4.05785</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Endothermic processes for producing hydrogen using autothermal microchannel reactor technology by steam reforming
<p><strong>Endothermic processes for producing hydrogen using autothermal microchannel reactor technology by steam reforming</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products. Chemical reactions must be distinguished from physical changes. Physical changes include changes of state, such as ice melting to water and water evaporating to vapour. If a physical change occurs, the physical properties of a substance will change, but its chemical identity will remain the same. No matter what its physical state, water is the same compound, with each molecule composed of two atoms of hydrogen and one atom of oxygen. However, if water, as ice, liquid, or vapour, encounters sodium metal, the atoms will be redistributed to give the new substances molecular hydrogen and sodium hydroxide. By this, a chemical change or reaction has occurred. When making a new substance from other substances, chemists say either that they carry out a synthesis or that they synthesize the new material. Reactants are converted to products, and the process is symbolized by a chemical equation. For example, iron and sulfur combine to form iron sulfide.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 13.8238</p> <p>0.00025 13.829</p> <p>0.0005 13.7686</p> <p>0.00075 13.5966</p> <p>0.001 13.3629</p> <p>0.00125 13.1109</p> <p>0.0015 12.8776</p> <p>0.00175 12.6771</p> <p>0.002 12.5024</p> <p>0.00225 12.3324</p> <p>0.0025 12.148</p> <p>0.00275 11.9429</p> <p>0.003 11.7223</p> <p>0.00325 11.5024</p> <p>0.0035 11.3004</p> <p>0.00375 11.1228</p> <p>0.004 10.9663</p> <p>0.00425 10.8201</p> <p>0.0045 10.6735</p> <p>0.00475 10.5217</p> <p>0.005 10.3666</p> <p>0.00525 10.2161</p> <p>0.0055 10.079</p> <p>0.00575 9.9589</p> <p>0.006 9.85332</p> <p>0.00625 9.75492</p> <p>0.0065 9.65697</p> <p>0.00675 9.55649</p> <p>0.007 9.45433</p> <p>0.00725 9.35567</p> <p>0.0075 9.26616</p> <p>0.00775 9.18776</p> <p>0.008 9.11867</p> <p>0.00825 9.0535</p> <p>0.0085 8.98726</p> <p>0.00875 8.91821</p> <p>0.009 8.84762</p> <p>0.00925 8.77935</p> <p>0.0095 8.71752</p> <p>0.00975 8.66366</p> <p>0.01 8.61548</p> <p>0.01025 8.56872</p> <p>0.0105 8.51959</p> <p>0.01075 8.46699</p> <p>0.011 8.41232</p> <p>0.01125 8.35897</p> <p>0.0115 8.31019</p> <p>0.01175 8.26698</p> <p>0.012 8.22767</p> <p>0.01225 8.18823</p> <p>0.0125 8.14529</p> <p>0.01275 8.09866</p> <p>0.013 8.04992</p> <p>0.01325 8.00185</p> <p>0.0135 7.95721</p> <p>0.01375 7.91664</p> <p>0.014 7.87854</p> <p>0.01425 7.8395</p> <p>0.0145 7.79682</p> <p>0.01475 7.74993</p> <p>0.015 7.70089</p> <p>0.01525 7.65246</p> <p>0.0155 7.6065</p> <p>0.01575 7.56371</p> <p>0.016 7.52264</p> <p>0.01625 7.48033</p> <p>0.0165 7.43432</p> <p>0.01675 7.38447</p> <p>0.017 7.33228</p> <p>0.01725 7.28009</p> <p>0.0175 7.22957</p> <p>0.01775 7.18109</p> <p>0.018 7.13374</p> <p>0.01825 7.0847</p> <p>0.0185 7.03187</p> <p>0.01875 6.9754</p> <p>0.019 6.91664</p> <p>0.01925 6.85735</p> <p>0.0195 6.79932</p> <p>0.01975 6.74305</p> <p>0.02 6.687</p> <p>0.02025 6.62861</p> <p>0.0205 6.56642</p> <p>0.02075 6.50083</p> <p>0.021 6.43312</p> <p>0.02125 6.3647</p> <p>0.0215 6.29672</p> <p>0.02175 6.22942</p> <p>0.022 6.16121</p> <p>0.02225 6.09054</p> <p>0.0225 6.01672</p> <p>0.02275 5.9398</p> <p>0.023 5.86069</p> <p>0.02325 5.78065</p> <p>0.0235 5.70069</p> <p>0.02375 5.62078</p> <p>0.024 5.53996</p> <p>0.02425 5.45674</p> <p>0.0245 5.37043</p> <p>0.02475 5.28143</p> <p>0.025 5.19039</p> <p>0.02525 5.09831</p> <p>0.0255 5.00598</p> <p>0.02575 4.9134</p> <p>0.026 4.81981</p> <p>0.02625 4.72445</p> <p>0.0265 4.6271</p> <p>0.02675 4.52778</p> <p>0.027 4.42719</p> <p>0.02725 4.32633</p> <p>0.0275 4.22547</p> <p>0.02775 4.12485</p> <p>0.028 4.02385</p> <p>0.02825 3.9231</p> <p>0.0285 3.82001</p> <p>0.02875 3.71778</p> <p>0.029 3.60389</p> <p>0.02925 3.48476</p> <p>0.0295 3.37125</p> <p>0.02975 3.25454</p> <p>0.03 3.09704</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Steam reforming processes using microchannel technology for conducting simultaneous endothermic and exothermic reactions
<p><strong>Steam reforming processes using microchannel technology for conducting simultaneous endothermic and exothermic reactions</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>Many catalytic processes are known in which the catalyst and the reactants are not present in the same phase, that is, state of matter. These are known as heterogeneous catalytic reactions. They include reactions between gases or liquids or both at the surface of a solid catalyst. Since the surface is the place at which the reaction occurs, it generally is prepared in ways that produce large surface areas per unit of catalyst; finely divided metals, metal gauzes, metals incorporated into supporting matrices, and metallic films have all been used in modern heterogeneous catalysis. The metals themselves are used, or they are converted to oxides, sulfides, or halides. With solid catalysts, at least one of the reactants is chemisorbed (a portmanteau term for chemically adsorbed) by the catalyst. A catalyst is chosen that releases the products formed as readily as possible; otherwise, the products remain on the catalyst surface and act as poisons to the process. Chemisorption can occur over a wide temperature range, the most effective temperature for adsorption depending on the nature of the catalyst. Thus, hydrogen is chemisorbed readily by many metals even at liquid air temperatures. With a series of hydrogenation-dehydrogenation catalysts, for example, zinc oxide-chromic oxide, chemisorption of hydrogen often occurs above room temperature. Nitrogen is rapidly chemisorbed on synthetic ammonia-iron catalyst in the region at temperatures above 400 degrees Celsius. It has been shown that iron films chemisorb nitrogen even at liquid air temperatures, with additional chemisorption found above room temperatures. It follows from such considerations that whereas physical adsorptions, which parallel the ease of liquefaction of the adsorbed substance, occur spontaneously, chemisorption, which involves the making and breaking of chemical bonds, often requires activation energies (energy needed to initiate reactions) as do uncatalyzed chemical processes. To be efficient catalytically, a process must involve energies of activation for all the steps involved that, at their maxima, are less than those required for the uncatalyzed reaction.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 9.08258</p> <p>0.00025 9.08623</p> <p>0.0005 9.06858</p> <p>0.00075 9.00579</p> <p>0.001 8.90897</p> <p>0.00125 8.80223</p> <p>0.0015 8.71498</p> <p>0.00175 8.6596</p> <p>0.002 8.62783</p> <p>0.00225 8.59661</p> <p>0.0025 8.54384</p> <p>0.00275 8.46052</p> <p>0.003 8.35118</p> <p>0.00325 8.23399</p> <p>0.0035 8.13034</p> <p>0.00375 8.05024</p> <p>0.004 7.98947</p> <p>0.00425 7.93422</p> <p>0.0045 7.87164</p> <p>0.00475 7.7959</p> <p>0.005 7.70981</p> <p>0.00525 7.62462</p> <p>0.0055 7.55304</p> <p>0.00575 7.50071</p> <p>0.006 7.46372</p> <p>0.00625 7.43144</p> <p>0.0065 7.39358</p> <p>0.00675 7.3462</p> <p>0.007 7.29176</p> <p>0.00725 7.23878</p> <p>0.0075 7.19691</p> <p>0.00775 7.16958</p> <p>0.008 7.15358</p> <p>0.00825 7.14021</p> <p>0.0085 7.12094</p> <p>0.00875 7.09265</p> <p>0.009 7.05774</p> <p>0.00925 7.02353</p> <p>0.0095 6.99801</p> <p>0.00975 6.98414</p> <p>0.01 6.97862</p> <p>0.01025 6.97401</p> <p>0.0105 6.9631</p> <p>0.01075 6.94354</p> <p>0.011 6.91761</p> <p>0.01125 6.89195</p> <p>0.0115 6.87358</p> <p>0.01175 6.86521</p> <p>0.012 6.86398</p> <p>0.01225 6.86277</p> <p>0.0125 6.8552</p> <p>0.01275 6.83935</p> <p>0.013 6.81755</p> <p>0.01325 6.79575</p> <p>0.0135 6.78029</p> <p>0.01375 6.77368</p> <p>0.014 6.77343</p> <p>0.01425 6.7728</p> <p>0.0145 6.76616</p> <p>0.01475 6.75146</p> <p>0.015 6.73076</p> <p>0.01525 6.70987</p> <p>0.0155 6.6946</p> <p>0.01575 6.68733</p> <p>0.016 6.68571</p> <p>0.01625 6.68358</p> <p>0.0165 6.67524</p> <p>0.01675 6.65921</p> <p>0.017 6.6378</p> <p>0.01725 6.61618</p> <p>0.0175 6.59945</p> <p>0.01775 6.59003</p> <p>0.018 6.5862</p> <p>0.01825 6.58161</p> <p>0.0185 6.5713</p> <p>0.01875 6.5542</p> <p>0.019 6.53214</p> <p>0.01925 6.50972</p> <p>0.0195 6.49195</p> <p>0.01975 6.48078</p> <p>0.02 6.47405</p> <p>0.02025 6.46635</p> <p>0.0205 6.45304</p> <p>0.02075 6.43348</p> <p>0.021 6.40959</p> <p>0.02125 6.38518</p> <p>0.0215 6.36493</p> <p>0.02175 6.35104</p> <p>0.022 6.34095</p> <p>0.02225 6.32964</p> <p>0.0225 6.31313</p> <p>0.02275 6.29039</p> <p>0.023 6.26259</p> <p>0.02325 6.23382</p> <p>0.0235 6.20867</p> <p>0.02375 6.18867</p> <p>0.024 6.17146</p> <p>0.02425 6.15243</p> <p>0.0245 6.12822</p> <p>0.02475 6.09766</p> <p>0.025 6.06206</p> <p>0.02525 6.02536</p> <p>0.0255 5.99144</p> <p>0.02575 5.9613</p> <p>0.026 5.93233</p> <p>0.02625 5.90042</p> <p>0.0265 5.86267</p> <p>0.02675 5.81762</p> <p>0.027 5.76647</p> <p>0.02725 5.71297</p> <p>0.0275 5.66002</p> <p>0.02775 5.60812</p> <p>0.028 5.55564</p> <p>0.02825 5.4997</p> <p>0.0285 5.43621</p> <p>0.02875 5.37507</p> <p>0.029 5.31206</p> <p>0.02925 5.25157</p> <p>0.0295 5.19092</p> <p>0.02975 5.13077</p> <p>0.03 5.07692</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Heterogeneously catalyzed steam reforming processes in chemical reactors employing microchannel process technology
<p><strong>Heterogeneously catalyzed steam reforming processes in chemical reactors employing microchannel process technology</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>The oxidation of sodium sulfite solutions by dissolved oxygen is greatly accelerated by minute traces of copper ions in the homogeneous liquid system. This system is of special interest since it has been shown that the process is a chain reaction. In this case many thousands of molecules of sodium sulfite can be oxidized to sulfate if the initial activation process is produced by absorption of a limited number of quanta (discrete energy measures) of light. The best example of a light-initiated chain reaction is the photocombination of hydrogen and chlorine; as many as one million molecules of hydrogen chloride can be formed by absorption of a single light quantum. It is of interest to note that such chain reactions can be retarded by the presence of negative catalysts, more commonly termed inhibitors. These are materials that slow down the overall reaction by shortening the reaction chains, generally by entering into a non-chain reaction with one of the chemical components that maintain the chain. A wide variety of substances, including alcohols, sugars, and phenols, have been found to act as inhibitors of the oxidation of sulfite solutions. In certain instances, two or more catalysts present at the same time produce effects greater than either would produce alone. It is then customary to speak of promoter action. Thus, iron ions in solution fortify the action of copper ions in catalyzing a reaction between hydrogen peroxide and iodine. It is assumed that each catalyst activates only one of the reactants.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 4.44959</p> <p>0.00025 4.45878</p> <p>0.0005 4.48183</p> <p>0.00075 4.51166</p> <p>0.001 4.54417</p> <p>0.00125 4.58104</p> <p>0.0015 4.62817</p> <p>0.00175 4.68814</p> <p>0.002 4.75712</p> <p>0.00225 4.82549</p> <p>0.0025 4.88385</p> <p>0.00275 4.92753</p> <p>0.003 4.95729</p> <p>0.00325 4.98021</p> <p>0.0035 5.00483</p> <p>0.00375 5.03541</p> <p>0.004 5.07069</p> <p>0.00425 5.10466</p> <p>0.0045 5.13141</p> <p>0.00475 5.14874</p> <p>0.005 5.15804</p> <p>0.00525 5.16465</p> <p>0.0055 5.17504</p> <p>0.00575 5.19208</p> <p>0.006 5.21419</p> <p>0.00625 5.23637</p> <p>0.0065 5.25342</p> <p>0.00675 5.26315</p> <p>0.007 5.26706</p> <p>0.00725 5.26999</p> <p>0.0075 5.27698</p> <p>0.00775 5.2902</p> <p>0.008 5.30797</p> <p>0.00825 5.32557</p> <p>0.0085 5.33865</p> <p>0.00875 5.34553</p> <p>0.009 5.34758</p> <p>0.00925 5.34898</p> <p>0.0095 5.35409</p> <p>0.00975 5.36492</p> <p>0.01 5.38001</p> <p>0.01025 5.39497</p> <p>0.0105 5.40558</p> <p>0.01075 5.41024</p> <p>0.011 5.41031</p> <p>0.01125 5.41008</p> <p>0.0115 5.41383</p> <p>0.01175 5.42315</p> <p>0.012 5.43632</p> <p>0.01225 5.44943</p> <p>0.0125 5.45885</p> <p>0.01275 5.46302</p> <p>0.013 5.46291</p> <p>0.01325 5.46232</p> <p>0.0135 5.46534</p> <p>0.01375 5.47361</p> <p>0.014 5.48559</p> <p>0.01425 5.49703</p> <p>0.0145 5.50449</p> <p>0.01475 5.50685</p> <p>0.015 5.5052</p> <p>0.01525 5.50292</p> <p>0.0155 5.5039</p> <p>0.01575 5.5099</p> <p>0.016 5.51963</p> <p>0.01625 5.52926</p> <p>0.0165 5.53479</p> <p>0.01675 5.53509</p> <p>0.017 5.53187</p> <p>0.01725 5.52862</p> <p>0.0175 5.52867</p> <p>0.01775 5.53341</p> <p>0.018 5.54174</p> <p>0.01825 5.54974</p> <p>0.0185 5.5541</p> <p>0.01875 5.5541</p> <p>0.019 5.55067</p> <p>0.01925 5.54664</p> <p>0.0195 5.54565</p> <p>0.01975 5.54956</p> <p>0.02 5.55697</p> <p>0.02025 5.56395</p> <p>0.0205 5.56722</p> <p>0.02075 5.56603</p> <p>0.021 5.56165</p> <p>0.02125 5.55689</p> <p>0.0215 5.55505</p> <p>0.02175 5.55776</p> <p>0.022 5.56342</p> <p>0.02225 5.56878</p> <p>0.0225 5.57095</p> <p>0.02275 5.56887</p> <p>0.023 5.56341</p> <p>0.02325 5.55734</p> <p>0.0235 5.55408</p> <p>0.02375 5.55524</p> <p>0.024 5.55933</p> <p>0.02425 5.56278</p> <p>0.0245 5.56283</p> <p>0.02475 5.55851</p> <p>0.025 5.55036</p> <p>0.02525 5.54139</p> <p>0.0255 5.53503</p> <p>0.02575 5.53218</p> <p>0.026 5.53104</p> <p>0.02625 5.52834</p> <p>0.0265 5.52161</p> <p>0.02675 5.51435</p> <p>0.027 5.50735</p> <p>0.02725 5.50059</p> <p>0.0275 5.49358</p> <p>0.02775 5.48678</p> <p>0.028 5.47965</p> <p>0.02825 5.47246</p> <p>0.0285 5.46597</p> <p>0.02875 5.45839</p> <p>0.029 5.45181</p> <p>0.02925 5.4442</p> <p>0.0295 5.43768</p> <p>0.02975 5.43001</p> <p>0.03 5.42345</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Heterogeneously catalyzed continuous flow reactors with highly insulating wall materials for the production of hydrogen by steam reforming
<p><strong>Heterogeneously catalyzed continuous flow reactors with highly insulating wall materials for the production of hydrogen by steam reforming</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>Catalysts may be classified generally according to their physical state, their chemical nature, or the nature of the reactions that they catalyze. Catalysts may be gases, liquids, or solids. In homogeneous catalysis, the catalyst is molecularly dispersed in the same phase (usually gaseous or liquid) as the reactants. In heterogeneous catalysis the reactants and the catalyst are in different phases, separated by a phase boundary. Most commonly, heterogeneous catalysts are solids, and the reactants are gases or liquids. When the catalyst and the reacting substances are present together in a single state of matter, usually as a gas or a liquid, it is customary to classify the reactions as cases of homogeneous catalysis. Oxides of nitrogen serve as catalysts for the oxidation of sulfur dioxide in the lead chamber process for producing sulfuric acid, an instance of homogeneous catalysis in which the catalyst and reactants are gases. Traces of water vapour catalyze some gas reactions, for example, the interaction of carbon monoxide and oxygen, which proceeds only slowly in dry conditions. Sulfuric acid used as a catalyst for the formation of diethyl ether from ethyl alcohol is an example of homogeneous catalysis in the liquid phase (when the products, water and ether, are continuously removed by distillation); by this method, considerable quantities of alcohol can be converted to ether with a single charge of sulfuric acid. The inversion of cane sugar and the hydrolysis of esters by acid solutions also are examples of homogeneous catalysis in the liquid phase.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 2.51969</p> <p>0.00025 2.52898</p> <p>0.0005 2.55637</p> <p>0.00075 2.59905</p> <p>0.001 2.65199</p> <p>0.00125 2.71215</p> <p>0.0015 2.779</p> <p>0.00175 2.85188</p> <p>0.002 2.929</p> <p>0.00225 3.007</p> <p>0.0025 3.08264</p> <p>0.00275 3.15412</p> <p>0.003 3.22107</p> <p>0.00325 3.28478</p> <p>0.0035 3.34725</p> <p>0.00375 3.40961</p> <p>0.004 3.47145</p> <p>0.00425 3.53115</p> <p>0.0045 3.58689</p> <p>0.00475 3.63782</p> <p>0.005 3.68446</p> <p>0.00525 3.72848</p> <p>0.0055 3.77185</p> <p>0.00575 3.81555</p> <p>0.006 3.85919</p> <p>0.00625 3.90117</p> <p>0.0065 3.93975</p> <p>0.00675 3.9745</p> <p>0.007 4.00595</p> <p>0.00725 4.03554</p> <p>0.0075 4.06508</p> <p>0.00775 4.09527</p> <p>0.008 4.1257</p> <p>0.00825 4.15508</p> <p>0.0085 4.18203</p> <p>0.00875 4.20586</p> <p>0.009 4.22692</p> <p>0.00925 4.24666</p> <p>0.0095 4.26675</p> <p>0.00975 4.28804</p> <p>0.01 4.31009</p> <p>0.01025 4.33162</p> <p>0.0105 4.35124</p> <p>0.01075 4.36833</p> <p>0.011 4.38322</p> <p>0.01125 4.39748</p> <p>0.0115 4.41272</p> <p>0.01175 4.42943</p> <p>0.012 4.44708</p> <p>0.01225 4.46422</p> <p>0.0125 4.47947</p> <p>0.01275 4.49245</p> <p>0.013 4.50367</p> <p>0.01325 4.51438</p> <p>0.0135 4.52587</p> <p>0.01375 4.53892</p> <p>0.014 4.55319</p> <p>0.01425 4.56709</p> <p>0.0145 4.57965</p> <p>0.01475 4.59029</p> <p>0.015 4.59928</p> <p>0.01525 4.60791</p> <p>0.0155 4.61738</p> <p>0.01575 4.62855</p> <p>0.016 4.64119</p> <p>0.01625 4.6539</p> <p>0.0165 4.665</p> <p>0.01675 4.67399</p> <p>0.017 4.68163</p> <p>0.01725 4.68922</p> <p>0.0175 4.69783</p> <p>0.01775 4.70789</p> <p>0.018 4.71927</p> <p>0.01825 4.73043</p> <p>0.0185 4.74005</p> <p>0.01875 4.74791</p> <p>0.019 4.75432</p> <p>0.01925 4.76037</p> <p>0.0195 4.7674</p> <p>0.01975 4.77614</p> <p>0.02 4.78619</p> <p>0.02025 4.79589</p> <p>0.0205 4.80412</p> <p>0.02075 4.81091</p> <p>0.021 4.81662</p> <p>0.02125 4.82204</p> <p>0.0215 4.8285</p> <p>0.02175 4.83678</p> <p>0.022 4.84603</p> <p>0.02225 4.85522</p> <p>0.0225 4.8636</p> <p>0.02275 4.87063</p> <p>0.023 4.87617</p> <p>0.02325 4.88134</p> <p>0.0235 4.88764</p> <p>0.02375 4.89563</p> <p>0.024 4.90453</p> <p>0.02425 4.91307</p> <p>0.0245 4.92044</p> <p>0.02475 4.92599</p> <p>0.025 4.92992</p> <p>0.02525 4.93332</p> <p>0.0255 4.93759</p> <p>0.02575 4.94309</p> <p>0.026 4.94878</p> <p>0.02625 4.95359</p> <p>0.0265 4.95679</p> <p>0.02675 4.95736</p> <p>0.027 4.95533</p> <p>0.02725 4.95189</p> <p>0.0275 4.94807</p> <p>0.02775 4.94582</p> <p>0.028 4.94248</p> <p>0.02825 4.9391</p> <p>0.0285 4.93625</p> <p>0.02875 4.93336</p> <p>0.029 4.93052</p> <p>0.02925 4.92708</p> <p>0.0295 4.92401</p> <p>0.02975 4.92139</p> <p>0.03 4.91781</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Heterogeneously catalyzed steam reforming reactors with highly insulating wall materials for hydrogen production
<p><strong>Heterogeneously catalyzed steam reforming reactors with highly insulating wall materials for hydrogen production</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>The design relates to a thermally coupled monolith reactor, used to thermally contact endothermic and exothermic reaction streams in adjacent channels. The geometry allows intimate thermal contact whilst keeping the streams from becoming mixed. The reactor body is constructed by modification of a substantially rigid and essentially nonporous monolith honeycomb. Prior to modification the monolith consists of a honeycombed body having a matrix of thin walls defining a multiplicity of discrete channels which pass through the body of the structure from one face to the opposing face. The monolith is modified in such a way as to produce a rigid body containing at least two discreet process flow paths which have a number of dividing walls in common. For the purpose of this design, a channel is defined as any individual passageway through the monolith body and a flow path is the group of channels used for a single reaction. The monolith body may be constructed from a number of materials using a range of techniques. Suitable materials include ceramics with a low coefficient of thermal expansion which are readily extrudable. These include, but are not limited to, mullite, corderite, alumina, and silica. Other materials include metals which may be extruded, welded, brazed, or diffusion bonded to make such structures. Using metals, it is sometimes useful to start with metal oxide powders, which are then bonded and reduced to the metallic state. Suitable metals include copper, aluminium, stainless steel, iron, titanium, and mixtures or alloys thereof.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 5.24167</p> <p>0.00025 5.35038</p> <p>0.0005 5.59568</p> <p>0.00075 5.86537</p> <p>0.001 6.11865</p> <p>0.00125 6.34243</p> <p>0.0015 6.53109</p> <p>0.00175 6.68219</p> <p>0.002 6.79554</p> <p>0.00225 6.87267</p> <p>0.0025 6.91642</p> <p>0.00275 6.93001</p> <p>0.003 6.91683</p> <p>0.00325 6.88071</p> <p>0.0035 6.82557</p> <p>0.00375 6.75504</p> <p>0.004 6.67218</p> <p>0.00425 6.58003</p> <p>0.0045 6.48092</p> <p>0.00475 6.37655</p> <p>0.005 6.26889</p> <p>0.00525 6.15969</p> <p>0.0055 6.05031</p> <p>0.00575 5.9419</p> <p>0.006 5.83551</p> <p>0.00625 5.73198</p> <p>0.0065 5.63166</p> <p>0.00675 5.53473</p> <p>0.007 5.44181</p> <p>0.00725 5.35303</p> <p>0.0075 5.26832</p> <p>0.00775 5.18794</p> <p>0.008 5.11205</p> <p>0.00825 5.0406</p> <p>0.0085 4.9734</p> <p>0.00875 4.91027</p> <p>0.009 4.85116</p> <p>0.00925 4.79592</p> <p>0.0095 4.74421</p> <p>0.00975 4.69592</p> <p>0.01 4.6509</p> <p>0.01025 4.60897</p> <p>0.0105 4.57006</p> <p>0.01075 4.53403</p> <p>0.011 4.50066</p> <p>0.01125 4.46966</p> <p>0.0115 4.44077</p> <p>0.01175 4.41409</p> <p>0.012 4.38962</p> <p>0.01225 4.36729</p> <p>0.0125 4.34699</p> <p>0.01275 4.32857</p> <p>0.013 4.31176</p> <p>0.01325 4.29635</p> <p>0.0135 4.28232</p> <p>0.01375 4.26966</p> <p>0.014 4.2583</p> <p>0.01425 4.24794</p> <p>0.0145 4.23865</p> <p>0.01475 4.23021</p> <p>0.015 4.22255</p> <p>0.01525 4.21587</p> <p>0.0155 4.21007</p> <p>0.01575 4.20509</p> <p>0.016 4.20091</p> <p>0.01625 4.1973</p> <p>0.0165 4.19387</p> <p>0.01675 4.19079</p> <p>0.017 4.1885</p> <p>0.01725 4.18682</p> <p>0.0175 4.18524</p> <p>0.01775 4.18388</p> <p>0.018 4.18298</p> <p>0.01825 4.18213</p> <p>0.0185 4.18136</p> <p>0.01875 4.18095</p> <p>0.019 4.1809</p> <p>0.01925 4.1808</p> <p>0.0195 4.18068</p> <p>0.01975 4.18095</p> <p>0.02 4.18151</p> <p>0.02025 4.18213</p> <p>0.0205 4.18266</p> <p>0.02075 4.18322</p> <p>0.021 4.18389</p> <p>0.02125 4.18446</p> <p>0.0215 4.18499</p> <p>0.02175 4.18578</p> <p>0.022 4.18649</p> <p>0.02225 4.18705</p> <p>0.0225 4.18769</p> <p>0.02275 4.18848</p> <p>0.023 4.18913</p> <p>0.02325 4.18948</p> <p>0.0235 4.18969</p> <p>0.02375 4.18992</p> <p>0.024 4.18989</p> <p>0.02425 4.18952</p> <p>0.0245 4.18926</p> <p>0.02475 4.18907</p> <p>0.025 4.18838</p> <p>0.02525 4.18717</p> <p>0.0255 4.18578</p> <p>0.02575 4.18424</p> <p>0.026 4.18227</p> <p>0.02625 4.17979</p> <p>0.0265 4.17704</p> <p>0.02675 4.17371</p> <p>0.027 4.16989</p> <p>0.02725 4.16595</p> <p>0.0275 4.16173</p> <p>0.02775 4.15674</p> <p>0.028 4.15105</p> <p>0.02825 4.14506</p> <p>0.0285 4.13866</p> <p>0.02875 4.13164</p> <p>0.029 4.12371</p> <p>0.02925 4.11536</p> <p>0.0295 4.1047</p> <p>0.02975 4.07045</p> <p>0.03 4.04272</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
Microchannel steam reforming reactors with insulating wall materials for hydrogen production
<p><strong>Microchannel steam reforming reactors with insulating wall materials for hydrogen production</strong></p> <p>Junjie Chen</p> <p>Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com</p> <p> </p> <p>In one form, the design includes a monolithic catalytic reactor with a primary flow path comprising a number of tubes which are lined with a catalyst. As chemical reactants are fed into the primary flow path the chemicals react, with the aid of the catalyst, to produce an exothermic reaction. In the same catalytic reactor is a secondary flow path, also comprising a number of tubes and also lined with a catalyst. In this secondary flow path, a different collection of chemical reactants are fed and, through the aid of the catalyst, will produce an endothermic reaction. The tubes of the primary and secondary flow paths are interspersed with one another within the monolith such that the heat generated from the exothermic reaction may conduct through the tube walls and serve as a heat source for the endothermic reaction. Furthermore, the microchannel steam reforming reactor design includes a method for enhancing one or more catalytic chemical reactions in terms of rate, product yield, energy and other parameters. Here, the initiating an exothermic reaction within one flow path of the monolithic reactor serves the dual purpose of creating a product yield as a result of that exothermic reaction and as a heat source. With the aid of this heat source, a second and endothermic reaction may be initiated in a secondary flow path which may absorb the heat from the exothermic reaction thereby enhancing product yield and making efficient use of available energy. To optimize the use of this heat, the reactions are controlled through one of many factors such as feed rate of the reactants, catalyst quality, reactant concentration and others. The flow paths may be co-current, countercurrent or other such variation as necessary to maximize heat transfer between the two reactions.</p> <p>Streamwise distance (meter), Heterogeneous reaction rate along the length of the reactor (mole per square meter per second)</p> <p>0 8.97706</p> <p>0.00025 9.12983</p> <p>0.0005 9.45292</p> <p>0.00075 9.76459</p> <p>0.001 10.009</p> <p>0.00125 10.1761</p> <p>0.0015 10.2678</p> <p>0.00175 10.2901</p> <p>0.002 10.2514</p> <p>0.00225 10.1611</p> <p>0.0025 10.0284</p> <p>0.00275 9.86268</p> <p>0.003 9.67153</p> <p>0.00325 9.46156</p> <p>0.0035 9.23929</p> <p>0.00375 9.01005</p> <p>0.004 8.77805</p> <p>0.00425 8.54661</p> <p>0.0045 8.31863</p> <p>0.00475 8.09598</p> <p>0.005 7.87987</p> <p>0.00525 7.67157</p> <p>0.0055 7.47194</p> <p>0.00575 7.28144</p> <p>0.006 7.10033</p> <p>0.00625 6.92886</p> <p>0.0065 6.76695</p> <p>0.00675 6.61432</p> <p>0.007 6.47076</p> <p>0.00725 6.33601</p> <p>0.0075 6.20963</p> <p>0.00775 6.09103</p> <p>0.008 5.98024</p> <p>0.00825 5.87692</p> <p>0.0085 5.78047</p> <p>0.00875 5.6906</p> <p>0.009 5.60703</p> <p>0.00925 5.5293</p> <p>0.0095 5.45708</p> <p>0.00975 5.38993</p> <p>0.01 5.3273</p> <p>0.01025 5.26922</p> <p>0.0105 5.2156</p> <p>0.01075 5.1662</p> <p>0.011 5.12058</p> <p>0.01125 5.07842</p> <p>0.0115 5.03943</p> <p>0.01175 5.00345</p> <p>0.012 4.9703</p> <p>0.01225 4.93973</p> <p>0.0125 4.91161</p> <p>0.01275 4.88587</p> <p>0.013 4.86227</p> <p>0.01325 4.84055</p> <p>0.0135 4.82058</p> <p>0.01375 4.80242</p> <p>0.014 4.78598</p> <p>0.01425 4.77087</p> <p>0.0145 4.75708</p> <p>0.01475 4.74449</p> <p>0.015 4.73297</p> <p>0.01525 4.72248</p> <p>0.0155 4.71307</p> <p>0.01575 4.70472</p> <p>0.016 4.69726</p> <p>0.01625 4.69071</p> <p>0.0165 4.68471</p> <p>0.01675 4.67933</p> <p>0.017 4.67489</p> <p>0.01725 4.67115</p> <p>0.0175 4.66781</p> <p>0.01775 4.66491</p> <p>0.018 4.6626</p> <p>0.01825 4.66054</p> <p>0.0185 4.65865</p> <p>0.01875 4.65713</p> <p>0.019 4.65599</p> <p>0.01925 4.65505</p> <p>0.0195 4.6543</p> <p>0.01975 4.65386</p> <p>0.02 4.65375</p> <p>0.02025 4.65363</p> <p>0.0205 4.6535</p> <p>0.02075 4.6538</p> <p>0.021 4.65451</p> <p>0.02125 4.65516</p> <p>0.0215 4.65575</p> <p>0.02175 4.65657</p> <p>0.022 4.65718</p> <p>0.02225 4.65771</p> <p>0.0225 4.65857</p> <p>0.02275 4.65952</p> <p>0.023 4.66024</p> <p>0.02325 4.66071</p> <p>0.0235 4.66111</p> <p>0.02375 4.66146</p> <p>0.024 4.66145</p> <p>0.02425 4.66101</p> <p>0.0245 4.66041</p> <p>0.02475 4.65975</p> <p>0.025 4.65862</p> <p>0.02525 4.65679</p> <p>0.0255 4.65471</p> <p>0.02575 4.65255</p> <p>0.026 4.6498</p> <p>0.02625 4.64634</p> <p>0.0265 4.64254</p> <p>0.02675 4.63791</p> <p>0.027 4.63242</p> <p>0.02725 4.62651</p> <p>0.0275 4.62008</p> <p>0.02775 4.61266</p> <p>0.028 4.60415</p> <p>0.02825 4.59488</p> <p>0.0285 4.585</p> <p>0.02875 4.57438</p> <p>0.029 4.5624</p> <p>0.02925 4.54979</p> <p>0.0295 4.5335</p> <p>0.02975 4.47929</p> <p>0.03 4.43516</p> <p>Contributor: Junjie Chen, ORCID: 0000-0001-5055-4309, E-mail address: komcjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.