Results 211 to 220 of about 3,219,143 (246)
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Activated Carbons for Ventilation Air Methane Enrichment by Vacuum Pressure Swing Adsorption
Advanced Materials Research, 2013A coconut shell based activated carbon with BET surface area of 795 m2/g, micropore volume 0.37 mL/g and total pore volume 0.44 mL/g was prepared. With this activated carbon as adsorbent, the ventilation air methane (VAM) enrichment by vacuum pressure swing adsorption (VPSA) was investigated.
Shao Bo Ouyang, Shao Ping Xu, Ning Song
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Systems and Control Transactions
Vacuum (pressure) swing adsorption (V(P)SA) has received considerable attention in the past decades. Existing studies typically estimate vacuum pump energy consumption using an approximate constant energy efficiency or an empirical energy efficiency correlation, leading to inaccurate representation of realistic vacuum pump performance. In this paper an
Yangyanbing Liao, Andrew Wright, Jie Li
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Vacuum (pressure) swing adsorption (V(P)SA) has received considerable attention in the past decades. Existing studies typically estimate vacuum pump energy consumption using an approximate constant energy efficiency or an empirical energy efficiency correlation, leading to inaccurate representation of realistic vacuum pump performance. In this paper an
Yangyanbing Liao, Andrew Wright, Jie Li
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Low Concentration Coal Mine Methane Concentrated by Vacuum Pressure Swing Adsorption
2010 International Conference on Digital Manufacturing & Automation, 2010In order to solve the current situation that low-concentration oxygen-bearing coal mine methane can’t be concentrated and utilized, the vacuum pressure swing adsorption process was employed to concentrate the oxygen-bearing coal mine methane gas with the methane concentration of 20%.
Xiong Yang +5 more
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Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption
Energy & Fuels, 2006A vacuum pressure swing adsorption (VSA-PSA) process is studied for the removal of carbon dioxide in a contaminated stream of natural gas to achieve fuel grade methane. The adsorbent used was zeolite 13X (CECA) where CO2 is strongly adsorbed.
Simone Cavenati +2 more
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Industrial Scale Propylene/Propane Separation Using Pressure Vacuum Swing Adsorption
Industrial & Engineering Chemistry Research, 2018Conventional propylene/propane separation via distillation is capital- and energy-intensive. Pressure vacuum swing adsorption (PVSA) is a potential low-cost alternative to C3 distillation.
Wee Chong Kuah +2 more
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Four-Bed Vacuum Pressure Swing Adsorption Process for Propylene/Propane Separation
Industrial & Engineering Chemistry Research, 2005A vacuum pressure swing adsorption (VPSA) using zeolite 5A was studied experimentally and theoretically. An equimolar mixture of propylene/propane was used as a feed gas for an eight-step, four-bed VPSA process. Isotherm data of zeolite 5A at various temperatures and breakthrough curves of propylene and propane for both adsorption and regeneration ...
Masoud Mofarahi +2 more
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Vacuum pressure swing adsorption system for N2/CH4 separation under uncertainty
Chemical Engineering Research and Design, 2019Abstract This work presents a detailed study for the systematic design and analysis of effective VPSA process control for the separation of methane–nitrogen mixture. A rigorous mathematic model of VPSA process was developed in prior to simulate the real VPSA process and to reflect its cyclic dynamic behaviours more exactly.
Zhi-Yang Han +6 more
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Adsorption, 2016
A novel rapid vacuum pressure swing adsorption process with intermediate gas pressurization for producing oxygen is proposed to improve the performance of miniature oxygen concentrator based rapid pressure swing adsorption technology. The effects of intermediate gas pressurization and desorption pressure on the performance of the process are evaluated ...
Xianqiang Zhu +3 more
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A novel rapid vacuum pressure swing adsorption process with intermediate gas pressurization for producing oxygen is proposed to improve the performance of miniature oxygen concentrator based rapid pressure swing adsorption technology. The effects of intermediate gas pressurization and desorption pressure on the performance of the process are evaluated ...
Xianqiang Zhu +3 more
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