Results 201 to 210 of about 851,010 (251)
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Carbon dioxide recovery by vacuum swing adsorption
Separation and Purification Technology, 2004According to an investigation by the Intergovernmental Panel on Climate Change (IPCC), carbon dioxide is the most significant greenhouse gas produced as a result of human activities. The amount of carbon dioxide emissions has to be reduced to meet global treaty.
Cheng-Tung Chou, Chao-Yuh Chen
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Upgrading Biogas at Low Pressure by Vacuum Swing Adsorption
Industrial & Engineering Chemistry Research, 2014Performance 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 +9 more
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Vacuum pressure swing adsorption process for coalbed methane enrichment
Chinese Journal of Chemical Engineering, 2021Abstract The enrichment of low concentration coalbed methane using adsorption process with activated carbon adsorbent was studied in this work. Adsorption isotherms of methane, nitrogen and carbon dioxide on activated carbon were measured by volumetric method, meanwhile a series of breakthrough tests with single component, binary components and three
Bo Lu +4 more
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Fractionated Vacuum Swing Adsorption Process for Air Separation
Separation Science and Technology, 1993Abstract A novel adsorptive process for air separation using a zeolitic adsorbent is described. The process essentially consists of three simple cyclic steps, and it can be used for simultaneous production of an 80—90% oxygen-enriched gas and a 98 + % nitrogen-enriched gas from ambient air.
S. Sircarm, B. F. Hanley
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Layered Vacuum Pressure-Swing Adsorption for Biogas Upgrading
Industrial & Engineering Chemistry Research, 2007Biogas 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
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Vacuum Swing Adsorption for Propylene/Propane Separation with 4A Zeolite
Industrial & Engineering Chemistry Research, 2001A vacuum swing adsorption process using 4A zeolite pellets with five steps was designed to split an equimolar mixture of propylene/propane. The equimolar feed of C3 is diluted to 50% with nitrogen at 5 bar and 423 K, and the product is obtained when the total pressure is lowered to 0.1 bar. After 15 cycles, cyclic steady-state conditions are reached, a
Francisco A. Da Silva +1 more
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Simulation of a Fractionated Vacuum Swing Adsorption Process for Air Separation
Separation Science and Technology, 1998ABSTRACT A fractionated vacuum swing adsorption process previously proposed in the literature that simultaneously produces a 98% nitrogen-enriched gas and a 90% oxygen-enriched gas from ambient air is studied by simulation. This process utilizes CaX zeolite as the major adsorbent and alumina as the desiccant packed at the feed air end.
Cheng-Tung Chou +2 more
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Study of pressure/vacuum swing adsorption processes for CO₂ capture
2021This 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.
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Vacuum Pressure Swing Adsorption to Produce Polymer-Grade Propylene
Separation Science and Technology, 2010We have evaluated the Vacuum Pressure Swing Adsorption (VPSA) technology to separate propane–propylene streams to produce polymer-grade propylene. Zeolite 4A is used as kinetic adsorbent since propylene diffuses much faster than propane. A single VPSA process is able to produce propylene with purity higher than 99.6%.
Carlos A. Grande +2 more
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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 +2 more
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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 +2 more
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