Hydrogen separation from hydrogen/helium mixtures under different pressures by using U-shaped ZrCo getter beds

2021 ◽  
Vol 169 ◽  
pp. 112435
Author(s):  
Lei Yue ◽  
Chao Chen ◽  
Linjie Zhao ◽  
Jiamao Li ◽  
Chengjian Xiao ◽  
...  
Keyword(s):  
Hydrogen Separation ◽  
Helium Mixtures

Thermal diffusion in hydrogen-helium mixtures

1963 ◽  
Vol 60 ◽  
pp. 172-177 ◽  
Author(s):  
C. J. G. Slieker ◽  
A. E. de Vries
Keyword(s):  
Thermal Diffusion ◽  
Helium Mixtures

scholarly journals Hydrogen Separation and Purification from Various Gas Mixtures by Means of Electrochemical Membrane Technology in the Temperature Range 100–160 °C

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 282
Author(s):  
Leandri Vermaak ◽  
Hein W. J. P. Neomagus ◽  
Dmitri G. Bessarabov
Keyword(s):  
Hydrogen Permeability ◽  
Gas Mixtures ◽  
Open Circuit ◽  
Hydrogen Separation ◽  
Proton Exchange ◽  
Limiting Current ◽  
Separation Performance ◽  
Separation And Purification ◽  
Irreversible Damage ◽  
Temperature Range

This paper reports on an experimental evaluation of the hydrogen separation performance in a proton exchange membrane system with Pt-Co/C as the anode electrocatalyst. The recovery of hydrogen from H2/CO2, H2/CH4, and H2/NH3 gas mixtures were determined in the temperature range of 100–160 °C. The effects of both the impurity concentration and cell temperature on the separation performance of the cell and membrane were further examined. The electrochemical properties and performance of the cell were determined by means of polarization curves, limiting current density, open-circuit voltage, hydrogen permeability, hydrogen selectivity, hydrogen purity, and cell efficiencies (current, voltage, and power efficiencies) as performance parameters. High purity hydrogen (>99.9%) was obtained from a low purity feed (20% H2) after hydrogen was separated from H2/CH4 mixtures. Hydrogen purities of 98–99.5% and 96–99.5% were achieved for 10% and 50% CO2 in the feed, respectively. Moreover, the use of proton exchange membranes for electrochemical hydrogen separation was unsuccessful in separating hydrogen-rich streams containing NH3; the membrane underwent irreversible damage.

A multi-scale flow analysis in hydrogen separation membranes using a coupled DSMC-SPH method

2012 ◽  
Vol 37 (1) ◽  
pp. 894-902 ◽  
Author(s):  
Jianjun Ye ◽  
Jian Yang ◽  
Jinyang Zheng ◽  
Xianting Ding ◽  
Ieong Wong ◽  
...  
Keyword(s):  
Flow Analysis ◽  
Hydrogen Separation ◽  
Sph Method ◽  
Multi Scale ◽  
Separation Membranes

Palladium based film-type cermet membranes for hydrogen separation

2012 ◽  
Vol 22 (11) ◽  
pp. 4904 ◽  
Author(s):  
C. Y. Park ◽  
T. H. Lee ◽  
S. E. Dorris ◽  
U. (Balu) Balachandran
Keyword(s):  
Hydrogen Separation ◽  
Film Type

Molecular Sieves: Energy-Efficient Hydrogen Separation by AB-Type Ladder-Polymer Molecular Sieves (Adv. Mater. 39/2014)

2014 ◽  
Vol 26 (39) ◽  
pp. 6661-6661 ◽  
Author(s):  
Bader S. Ghanem ◽  
Raja Swaidan ◽  
Xiaohua Ma ◽  
Eric Litwiller ◽  
Ingo Pinnau
Keyword(s):  
Energy Efficient ◽  
Molecular Sieves ◽  
Hydrogen Separation ◽  
Ladder Polymer

Hydrogen separation via forming hydrate in W/O emulsion

2014 ◽  
Vol 362 ◽  
pp. 252-257 ◽  
Author(s):  
Bei Liu ◽  
Huang Liu ◽  
Bo Wang ◽  
Jin Wang ◽  
Changyu Sun ◽  
...  
Keyword(s):  
Hydrogen Separation

Aligned CNT/Polymer nanocomposite membranes for hydrogen separation

2009 ◽  
Vol 34 (9) ◽  
pp. 3977-3982 ◽  
Author(s):  
Anshu Sharma ◽  
Sumit Kumar ◽  
Balram Tripathi ◽  
M. Singh ◽  
Y.K. Vijay
Keyword(s):  
Polymer Nanocomposite ◽  
Hydrogen Separation ◽  
Nanocomposite Membranes

Modelling and measurements of gas tungsten arc welding in argon–helium mixtures with metal vapour

2021 ◽  
Author(s):  
Junting Xiang ◽  
Keigo Tanaka ◽  
Fiona F. Chen ◽  
Masaya Shigeta ◽  
Manabu Tanaka ◽  
...  
Keyword(s):  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Metal Vapour ◽  
Helium Mixtures ◽  
Gas Tungsten Arc ◽  
Gas Tungsten
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