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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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Journal of Hazardous Materials, 2011
Organic vapors emitted from solvents used in chemical and pharmaceutical processes, or from hydrocarbon fuel storage stations at oil terminals, can be efficiently captured by adsorption onto activated carbon beds. To recover vapors after the adsorption step, two modes of regeneration were selected and could be possibly combined: thermal desorption by ...
Ramalingam, Shivaji Ganesan +9 more
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Organic vapors emitted from solvents used in chemical and pharmaceutical processes, or from hydrocarbon fuel storage stations at oil terminals, can be efficiently captured by adsorption onto activated carbon beds. To recover vapors after the adsorption step, two modes of regeneration were selected and could be possibly combined: thermal desorption by ...
Ramalingam, Shivaji Ganesan +9 more
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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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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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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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Propylene Enrichment via Kinetic Vacuum Pressure Swing Adsorption Using ZIF-8 Fiber Sorbents
ACS Applied Materials & Interfaces, 2018This work presents the synthesis, characterization, and implementation of ZIF-8/cellulose acetate fiber sorbents for the cyclic kinetic adsorption separation of an equimolar propane/propylene feed. These fiber sorbents are packed as structured mass-transfer contactors and employed in a two-bed vacuum pressure swing adsorption cycle without propylene ...
Brian R. Pimentel, Ryan P. Lively
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Energy, 2017
Currently, the significant energy penalty and performance limitation of energy consumption are the main technical barriers to the large-scale applications of CO2 capture. Carbon pump, which realizes an enrichment of CO2 from carbon source to carbon sink, is applied in a modeling for energy-efficiency analysis of CO2 capture technologies. In this study,
Ruikai Zhao +6 more
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Currently, the significant energy penalty and performance limitation of energy consumption are the main technical barriers to the large-scale applications of CO2 capture. Carbon pump, which realizes an enrichment of CO2 from carbon source to carbon sink, is applied in a modeling for energy-efficiency analysis of CO2 capture technologies. In this study,
Ruikai Zhao +6 more
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Binary gas dehydration using molecular sieve 4A within the pressure-vacuum swing adsorption
Energy, 2022Abstract This research studied the separation of a binary mixture gas. The separation process was using a pressure vacuum swing adsorption (PVSA) and molecular sieve 4A as adsorbents. The binary mixture gas in this research was nitrogen and water. The research consists of an experiment and numerical model.
Narit Lorpradit +3 more
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Advanced Materials Research, 2012
Vacuum pressure swing adsorption (VPSA) process with vacuum exhaust step for concentrating ventilation air methane (VAM) was studied experimentally. The effect of vacuum exhaust ratio on methane concentration and recovery are investigated. The results shows that vacuum exhaust step can increase the methane concentration of product gas without ...
Yong Ling Li +4 more
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Vacuum pressure swing adsorption (VPSA) process with vacuum exhaust step for concentrating ventilation air methane (VAM) was studied experimentally. The effect of vacuum exhaust ratio on methane concentration and recovery are investigated. The results shows that vacuum exhaust step can increase the methane concentration of product gas without ...
Yong Ling Li +4 more
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Crystal Size Effect in Vacuum Pressure-Swing Adsorption for Propane/Propylene Separation
Industrial & Engineering Chemistry Research, 2004The aim of this work is to evaluate the performance parameters of a vacuum pressure swing adsorption (VSA−PSA) unit for propane/propylene separation using zeolite 4A with different crystal sizes. For this purpose, we have synthesized samples of zeolite 4A with different average crystal diameters: 0.3, 1.9, 10.0, and 22.0 μm. We measured the adsorption
Carlos A. Grande +2 more
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