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The aim of this study is to investigate the transformation of hydrogen-donor solvent tetralin in the direct liquefaction process of coal. Pure tetralin liquid as well as mixture of tetralin and Wucaiwan coal (WCW) were separately reacted under a ...
Hai-zhou Chang +6 more
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Biomass thermochemical liquefaction is a chemical process with multifunctional bio-oil as its main product. Under this process, the complex structure of lignocellulosic components can be hydrolysed into smaller molecules at atmospheric pressure.
Diogo Goncalves +10 more
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A design process for cryogenic expanders that supplies 0.5 TPD of liquefied hydrogen in hydrogen liquefaction plants is introduced. To improve the efficiency of the expander, the optimum design was conducted by adjusting two rotor shape parameters.
Hyungsoo Lim +10 more
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On the liquefaction of hydrogen [PDF]
n ...
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Liquefaction of Hydrogen [PDF]
YOUR last issue contains a report of Prof. Dewar's remarkable achievement in the liquefaction of hydrogen and helium. In his account of it, which you quote, Prof. Dewar describes the apparatus employed as an enlarged plant of the same type as that used in his hydrogen-jet experiments discussed in his paper, before the Chemical Society of December 19 ...
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Simulation methodology for hydrogen liquefaction process design considering hydrogen characteristics
© 2022 Hydrogen Energy Publications LLCOne promising method to improve the storage capacity of hydrogen is to liquefy it, resulting in high energy density.
Son, Heechang +3 more
core +1 more source
Numerical characterization of under-expanded cryogenic hydrogen gas jets
High-resolution direct numerical simulations are conducted for under-expanded cryogenic hydrogen gas jets to characterize the nearfield flow physics. The basic flow features and jet dynamics are analyzed in detail, revealing the existence of four stages ...
Zhaoxin Ren, Jennifer X. Wen
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Effect of Recycle Solvent Hydrotreatment on Oil Yield of Direct Coal Liquefaction
Effects of the recycle solvent hydrotreatment on oil yield of direct coal liquefaction were carried out in the 0.18 t/day direct coal liquefaction bench support unit of National Engineering Laboratory for Direct Coal Liquefaction (China).
Shansong Gao, Dexiang Zhang, Kejian Li
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The price of constructing hydrogen generation units is very high and sometimes it is not possible to build them in the desired location, so the transfer of hydrogen from the hydrogen generation system to the units that need it is justified.
Armin Ebrahimi +3 more
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