Results 191 to 200 of about 1,798 (232)

Upgrading Biogas at Low Pressure by Vacuum Swing Adsorption

Industrial & Engineering Chemistry Research, 2014
Performance of four adsorbents (three zeolites and one molecular sieve carbon) for CO2–CH4 separation from simulated biogas feed containing 42% CO2 (balance methane) is compared in a simple four step dual bed vacuum swing adsorption (VSA) cycle.
Aarti Arya, Swapnil Divekar, Ruchika Rawat, Pushpa Gupta, Madhukar O. Garg, Soumen Dasgupta, Anshu Nanoti, Ranjeet Singh, Penny Xiao, Paul A. Webley   +9 more
openaire   +1 more source

Layered Vacuum Pressure-Swing Adsorption for Biogas Upgrading

Industrial & Engineering Chemistry Research, 2007
Biogas is an important source of renewable raw methane that can be upgraded and applied as fuel for vehicles. One of the economic limitations of the upgrading relies in the bulk separation of CO2. In a previous communication (Grande, C. A.; Rodrigues, A. E. Ind. Eng. Chem. Res.
Carlos A. Grande, Alírio E. Rodrigues
openaire   +1 more source

Optimization of Pressure Swing Adsorption and Fractionated Vacuum Pressure Swing Adsorption Processes for CO₂ Capture

Industrial & Engineering Chemistry Research, 2005
This work focuses on the optimization of cyclic adsorption processes to improve the performance of CO2 capture from flue gas, consisting of nitrogen and carbon dioxide. The adopted processes are the PSA (pressure swing adsorption) process and the FVPSA (fractionated vacuum pressure swing adsorption) process, modified from the FVSA (fractionated vacuum ...
Daeho Ko, Ranjani Siriwardane, Lorenz T. Biegler   +2 more
openaire   +1 more source

Simulation and optimisation of vacuum (pressure) swing adsorption with simultaneous consideration of real vacuum pump data and bed fluidisation

Separation and Purification Technology
Pressure swing adsorption (PSA) is a promising technology for gas separation and purification, receiving considerable attention in the past decades. Existing studies on simulating PSA involving a vacuum pump, the vacuum (pressure) swing adsorption [V(P ...
Liao, Yangyanbing, Li, Jie, Wright, Andrew; id_orcid   +2 more
exaly   +2 more sources

Hazardous dichloromethane recovery in combined temperature and vacuum pressure swing adsorption process

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, Saussac, Jerôme, Pre, Pascaline, Giraudet, Sylvain, Le Coq, Laurence, Le Cloirec, Pierre, Nicolas, Serge, Baudouin, Olivier, Déchelotte, Stéphane, Medevielle, Alice   +9 more
openaire   +4 more sources

A comparative study on CO2 capture performance of vacuum-pressure swing adsorption and pressure-temperature swing adsorption based on carbon pump cycle

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, Li Zhao, Shuai Deng, Chunfeng Song, Junnan He, Yawei Shao, Shuangjun Li   +6 more
openaire   +1 more source

Study of pressure/vacuum swing adsorption processes for CO₂ capture

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
openaire   +1 more source

Vacuum Exhaust Processes in Vacuum Pressure-Swing Adsorption for Upgrading Methane in Ventilation Air Methane

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, Chuan Zhao Zhang, Ying Shu Liu, Xiong Yang, Yu Meng   +4 more
openaire   +1 more source

Crystal Size Effect in Vacuum Pressure-Swing Adsorption for Propane/Propylene Separation

Industrial & Engineering Chemistry Research, 2004
The 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, Elena Basaldella, Alírio E. Rodrigues   +2 more
openaire   +1 more source

Activated Carbons for Ventilation Air Methane Enrichment by Vacuum Pressure Swing Adsorption

Advanced Materials Research, 2013
A 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
openaire   +1 more source