Results 31 to 40 of about 6,747 (255)

Transformation Characteristics of Hydrogen-Donor Solvent Tetralin in the Process of Direct Coal Liquefaction

open access: yesFrontiers in Chemistry, 2019
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
doaj   +1 more source

Thermochemical Liquefaction as a Cleaner and Efficient Route for Valuing Pinewood Residues from Forest Fires

open access: yesMolecules, 2021
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
doaj   +1 more source

Liquefaction of Hydrogen [PDF]

open access: yesScientific American, 1884
n ...
openaire   +2 more sources

A Numerical Study on Blade Design and Optimization of a Helium Expander for a Hydrogen Liquefaction Plant

open access: yesApplied Sciences, 2022
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
doaj   +1 more source

On the liquefaction of hydrogen [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1878
n ...
openaire   +2 more sources

Liquefaction of Hydrogen [PDF]

open access: yesNature, 1898
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 ...
openaire   +2 more sources

Simulation methodology for hydrogen liquefaction process design considering hydrogen characteristics

open access: yes, 2022
© 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

open access: yesAIP Advances, 2020
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
doaj   +1 more source

Effect of Recycle Solvent Hydrotreatment on Oil Yield of Direct Coal Liquefaction

open access: yesEnergies, 2015
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
doaj   +1 more source

A comprehensive evaluation of a novel integrated system consisting of hydrogen boil-off gas reliquifying process and polymer exchange membrane fuel cell using exergoeconomic and Markov analyses

open access: yesEnergy Reports, 2022
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
doaj   +1 more source

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