Results 21 to 30 of about 2,877 (69)

Performance modeling of nano structure graphene membrane for hydrogen separation using CFD methods [PDF]

مجله مدل سازی در مهندسی, 2018
Due to high energy consumption and pollution rate caused by fossil fuels, in the world, hydrogen has been considered by many researchers as a clean fuel. Therefore, process of hydrogen separation can also be very important in this regard.
Rahman Zeynali, kamran ghasemzadeh, Alireza Behrooz sarand   +2 more
doaj   +1 more source

Single-Atom Site Photocatalysts Boosting Organic Synthesis: The Integration of a Metal Active Site and Photosensitive Unit

Nanomaterials
Metallaphotoredox catalysis merges the powerful bond-forming abilities of transition metal catalysis with unique electron or energy transfer pathways accessible in photoexcited states, injecting new vitality into organic synthesis.
Haoyue Sun, Yu Yang, Yanchang Liu, Dongxue Yang, Yichang Liu, Zaicheng Sun   +5 more
doaj   +1 more source

Insights into the application of microfluidic platforms in enhanced oil recovery

Petroleum
Enhanced oil recovery (EOR) technologies are used to recover most of the trapped crude oil from our limited reserves. With the escalating energy demand, EOR will achieve substantial economic benefits and greatly help in the exploitation of natural oil ...
Fadi Dawaymeh, Elie Ayoub, Maryam Khaleel, Nahla Alamoodi   +3 more
doaj   +1 more source

Development of a MEMS channel device for hydrogen gas separation based on the Soret effect

Journal of Thermal Science and Technology, 2014
Energy sources independent of fossil fuels or atomic power are of great importance to achieve a sustainable society from the viewpoint of environmental conservation and benefits. Hydrogen is considered as one of the main candidates for new sources.
Takahiro WAKO, Masae SHIMIZU, Sohei MATSUMOTO, Naoki ONO   +3 more
doaj   +1 more source

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

Membranes, 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, Alexey Krasnov, Yuliya Bespalko, Ludmilla Bobrova, Oleg Smorygo, Vladislav Sadykov   +5 more
doaj   +1 more source

Review of Supported Pd-Based Membranes Preparation by Electroless Plating for Ultra-Pure Hydrogen Production

Membranes, 2018
In the last years, hydrogen has been considered as a promising energy vector for the oncoming modification of the current energy sector, mainly based on fossil fuels.
David Alique, David Martinez-Diaz, Raul Sanz, Jose A. Calles   +3 more
doaj   +1 more source

The Application of Diffusion Method in the Preparation of High-Purity Hydrogen

Journal of Isotopes
Research on hydrogen separation processes based on diffusion methods is conducted for the gas purification step in the preparation of high-purity hydrogen.
Yongchun WEI, Chaoqi GE, Jun CHE, Rui ZHANG   +3 more
doaj   +1 more source

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

Membranes, 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, Masoud Mahmoudizadeh, Michael Rubin, Dirk Ullmer, Fatemeh Razmjooei, Alexander C. Hanf, Jan Brien, Roland Dittmeyer, Asif Ansar   +8 more
doaj   +1 more source

Research progress on hydrogen separation and purification technologies for hydrogen-blended natural gas

You-qi chuyun
ObjectiveHydrogen-blended natural gas transportation offers a viable pathway for large-scale hydrogen transportation. The separation and purification of hydrogen significantly influence the quality and economic efficiency of hydrogen for terminal use ...
Xiang MAO, Jun BAI, Chun DENG, Yuanyuan WU, Yu TIE, Yanqi ZHANG   +5 more
doaj   +1 more source

Performance and Long-Term Stability of Pd/PSS and Pd/Al2O3 Membranes for Hydrogen Separation

Membranes, 2014
The present work is focused on the investigation of the performance and long-term stability of two composite palladium membranes under different operating conditions.
Simona Liguori, Adolfo Iulianelli, Francesco Dalena, Pietro Pinacci, Francesca Drago, Maria Broglia, Yan Huang, Angelo Basile   +7 more
doaj   +1 more source