Results 11 to 20 of about 217,547 (158)

Improved hydrogen separation performance of asymmetric oxygen transport membranes by grooving in the porous support layer

open access: yesGreen Chemical Engineering, 2021
Hydrogen separation through oxygen transport membranes (OTMs) has attracted much attention. Asymmetric membranes with thin dense layers provide low bulk diffusion resistances and high overall hydrogen separation performances.
Lili Cai   +3 more
doaj   +1 more source

Research Progress of Hydrogen Separation Membrane

open access: yes中国工程科学, 2022
Hydrogen is a significant industrial raw material and clean fuel, and hydrogen separation has significant social and economic values. Membrane separation has a wide application prospect in hydrogen separation as it uses simple devices, is environmentally
Luan Yongchao   +4 more
doaj   +1 more source

Rare Earth Tungstate: One Competitive Proton Conducting Material Used for Hydrogen Separation: A Review

open access: yesSeparations, 2023
Membrane technology is an advanced hydrogen separation method that is of great significance in achieving hydrogen economy. Rare earth tungstate membranes have both high hydrogen permeability and remarkable mechanical/chemical stability, exhibiting good ...
Hongda Cheng
doaj   +1 more source

Modeling and simulation of the fluid dynamic and performance of the Pd-based membrane by CFD for hydrogen separation [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2022
In this paper, the capability of the Computational Fluid Dynamics (CFD) approach is evaluated to reliably predict the fluid dynamic and the separation performance of Pd membranes modules for gas mixture separation.
Milad Khodaei   +3 more
doaj   +1 more source

Advanced microporous membranes for H2/CH4 separation: Challenges and perspectives

open access: yesAdvanced Membranes, 2021
The utilization of hydrogen is regarded as the effective approach to arrive at the global carbon-neutrality target. Hydrogen/methane separation is a necessary unit for the hydrogen production in the petroleum industry. The development of high-performance
Rongfei Zhou   +3 more
doaj   +1 more source

HYDROGEN SEPARATION MEMBRANES [PDF]

open access: yes, 1999
A likely membrane for future testing of high-temperature hydrogen separation from a gasification product stream was targeted as an inorganic analog of a dense-metal membrane, where the hydrogen would dissolve into and diffuse through the membrane structure. An amorphous membrane such as zinc sulfide appeared to be promising.
McCollor, Donald P., Kay, John P.
openaire   +2 more sources

Preparation of High Stability Pd/Ceramic/Ti-Al Alloy Composite Membranes by Electroless Plating

open access: yesFrontiers in Chemistry, 2020
High stability Pd/ceramic/Ti-Al alloy composite membranes were prepared by electroless plating. Ceramic membranes fabricated by an in situ oxidation method were used as an inter-diffusion barrier between the Pd layer and the Ti-Al alloy support of the ...
Dongqiang Zhang   +4 more
doaj   +1 more source

An Experimental Performance Study of a Catalytic Membrane Reactor for Ethanol Steam Reforming over a Metal Honeycomb Catalyst

open access: yesMembranes, 2021
The present study deals with the combination of ethanol steam reforming over a monolithic catalyst and hydrogen separation by membrane in a lab-scale catalytic membrane reactor (CMR).
Nikita Eremeev   +5 more
doaj   +1 more source

Palladium Membrane with High Density of Large-Angle Grain Boundaries to Promote Hydrogen Diffusivity

open access: yesMembranes, 2022
A higher density of large-angle grain boundaries in palladium membranes promotes hydrogen diffusion whereas small-angle grain boundaries suppress it. In this paper, the microstructure formation in 10 µm thick palladium membranes is tuned to achieve a ...
Efi Hadjixenophontos   +8 more
doaj   +1 more source

Nanostructured Palladium-Doped Silica Membrane Layer Synthesis for Hydrogen Separation: Effect of Activated Sublayers [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2019
Palladium doped silica membranes were synthesized by the sol-gel method using two different procedures. The first palladium-doped silica membrane (M1) was synthesized with a coating of four layers of silica-palladium sol.
Masoud Majidi Beiragh   +4 more
doaj   +1 more source

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