Results 231 to 240 of about 2,229,222 (298)

Fluoropolymers in the Purification of Hydrogen Halides

Polymers and Polymer Composites, 2000
A number of properties offluoropolymers in aqueous solutions of hydrogen halides have been investigated. The results enable fluoropolymers to be used in the purification of hydrogen halides and their aqueous solutions. The hydrophobicity of fluoropolymers and their diffusion permeability enable production of hydrogen halides of low moisture content.
G.Z. Blum, E. A. Ryabenko, A.M. Yaroshenko, G.E. Zaikov, V.G. Zaikov   +4 more
openaire   +1 more source

Graphdiyne as Hydrogen Purification Membrane

Chinese Journal of Chemical Physics, 2012
The permselectivity of H2/O2, H2/N2, H2/CO, and H2/CH4 mixtures passing a graphdiyne membrane is studied by molecular dynamics simulations. At pressure range of 0.047–4.5 GPa, H2 can pass the graphdiyen membrane quickly, while all the O2, N2, CO, and CH4 molecules are blocked. At pressure of 47 kPa, the hydrogen flow is 7 mol/m2s.
Wen-hui Zhao, Lan-feng Yuan, Jin-long Yang   +2 more
openaire   +1 more source

Recent advances in membrane technologies for hydrogen purification

International journal of hydrogen energy, 2020
Planet Earth is facing accelerated global warming due to greenhouse gas emissions from human activities. The United Nations agreement at the Paris Climate Conference in 2015 highlighted the importance of reducing CO2 emissions from fossil fuel combustion.
G. Bernardo, Tiago Araújo, Telmo da Silva Lopes, J. Sousa, A. Mendes   +4 more
semanticscholar   +1 more source

Nanolayers on nanochannels for hydrogen purification

Journal of Applied Physics, 2009
The purification of hydrogen rich gases is of great technological importance in the “hydrogen economy” and is achieved by selective membranes made of organic or inorganic materials. In this field, a strong challenge is the synthesis of defect-free ultrathin Pd-based selective membranes.
Checchetto, Riccardo, Patel, Nainesh Kantilal, Miotello, Antonio, Brusa, Roberto Sennen   +3 more
openaire   +1 more source

Optimization of a hydrogen purification system

International Journal of Hydrogen Energy, 2008
Abstract A typical process of pressure swing adsorption (PSA) for H 2 purification consists of a sequence of stages involving high pressure adsorption and low pressure desorption at a determined temperature. If it is desired to optimize a process already installed, the pressure cannot be easily modified.
M TAGLIABUE, G DELNERO
openaire   +1 more source

Industrial Perspective on Hydrogen Purification, Compression, Storage, and Distribution

Fuel Cells, 2020
Green hydrogen production by electrolysis using renewable power allows for decoupling the time and location of hydrogen production and use. Even if pipeline transport of hydrogen is most economic for large scale, transport by trailers will be present in ...
A. Peschel
semanticscholar   +1 more source

Artificial neural network based optimization for hydrogen purification performance of pressure swing adsorption

International journal of hydrogen energy, 2019
A pressure swing adsorption (PSA) cycle model is implemented on Aspen Adsorption platform and is applied for simulating the PSA procedures of ternary-component gas mixture with molar fraction of H2/CO2/CO = 0.68/0.27/0.05 on Cu-BTC adsorbent bed.
Feng Ye, Shuo Ma, Liang Tong, Jinsheng Xiao, P. Bénard, R. Chahine   +5 more
semanticscholar   +1 more source

Techno-economic analysis and comprehensive optimization of anon-sitehydrogen refuelling station system using ammonia: hybrid hydrogen purification with both high H2purity and high recovery

, 2020
Ammonia (NH3) has been considered to be a promising hydrogen storage medium owing to the carbon-free features, easy liquefaction storage, low transportation costs, and potential ammonia production from renewable energy sources.
Li Lin, Yao Tian, Wenbin Su, Yu Luo, Chongqi Chen, Lilong Jiang   +5 more
semanticscholar   +1 more source

Graphdiyne: a versatile nanomaterial for electronics and hydrogen purification

Chemical Communications, 2011
We theoretically extend the applications of graphdiyne, an experimentally available one-atom-thin carbon allotrope, to nanoelectronics and superior separation membrane for hydrogen purification on a precise level.
Jiao, Yan, Du, Aijun, Hankel, Marlies, Zhu, Zhonghua (John), Rudolph, Victor, Smith, Sean   +5 more
openaire   +5 more sources

Computational screening of metal-organic frameworks with open copper sites for hydrogen purification

International journal of hydrogen energy, 2020
With the increasing demand for environmental protection worldwide, metal-organic frameworks (MOFs) have been pivotal in the clean energy domain. Due to the high surface areas, large porosities and structural tunability, they are promising for the ...
Manuel J. Chiau Junior, Yuguo Wang, Xuanjun Wu, Weiquan Cai   +3 more
semanticscholar   +1 more source