Results 201 to 210 of about 18,718 (260)
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Mass transfer kinetics in pressure swing adsorption
Separation and Purification Technology, 2000Many mass transfer kinetic models are used to study varying pressure steps of a pressure swing adsorption (PSA) cycle, namely pressurization and blowdown steps. It is shown that the choice of an appropriate model to account for intra-particle diffusional limitations is essential to simulate accurately PSA processes.
M.H. Chahbani, D. Tondeur
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Non-Diffusive Models for Pressure-Swing Adsorption
IMA Journal of Applied Mathematics, 1988This paper examines the industrial process popularly known as ``pressure- swing adsorption'' from both analytical and numerical points of view. After a derivation of the equations of motion and a description of the important stages involved in the process it is shown that for the case of a binary mixture the problem may be treated analytically in ...
Parker, D. F., Fitt, A. D.
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1984
Pressure swing adsorption (PSA) is a process for separating gas mixtures based upon recently developed adsorbent solids capable of selectively retaining specific gases. The major operating parameter in a PSA system is pressure; most commercial units operate at, or near, ambient temperature.
C. N. Kenney, N. F. Kirkby
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Pressure swing adsorption (PSA) is a process for separating gas mixtures based upon recently developed adsorbent solids capable of selectively retaining specific gases. The major operating parameter in a PSA system is pressure; most commercial units operate at, or near, ambient temperature.
C. N. Kenney, N. F. Kirkby
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Industrial & Engineering Chemistry Research, 2011
The upgrading of biogas by pressure swing adsorption (PSA) was studied. Simulations of a process for binary separation of CH4−CO2 using zeolite 13X as selective adsorbent were carried out at 323 K. The results obtained with a two-column PSA process using a six-step cycle (pressurization, feed, depressurization, blowdown, purge, and pressure ...
Mónica P. S. Santos +2 more
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The upgrading of biogas by pressure swing adsorption (PSA) was studied. Simulations of a process for binary separation of CH4−CO2 using zeolite 13X as selective adsorbent were carried out at 323 K. The results obtained with a two-column PSA process using a six-step cycle (pressurization, feed, depressurization, blowdown, purge, and pressure ...
Mónica P. S. Santos +2 more
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Radial flow rapid pressure swing adsorption
Adsorption, 1995A new PSA process has been proposed and experimentally verified. This process was operated with a radial flow geometry under a cycle time less than 30 seconds. It has been showed that enriched oxygen could be produced when air was fed inward. The same system showed virtually no separation effect if the feed direction was reversed.
A. S. T. Chiang, M. C. Hong
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Intensification of pressure swing adsorption processes
AIChE Journal, 1990AbstractScaling rules have been developed which are able to change the dimension of a pressure swing adsorption plant keeping its main performance constant. Such scaling rules result from a system of algebraic equations which arises by constraining the solution of a fairly general dimensionless mathematical model to be the same in the old and new plant
ROTA, RENATO, P. C. Wankat
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Air separation by pressure swing adsorption
Gas Separation & Purification, 1990Abstract The original pressure swing air separation process, developed almost simultaneously by Exxon and Air Liquide, uses a nitrogen selective zeolite adsorbent to produce a high purity oxygen product. The same basic process is still widely used in small scale units although, for larger scale units, many modifications to the cycle have been ...
D.M. Ruthven, S. Farooq
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ISOBUTANE PURIFICATION BY PRESSURE SWING ADSORPTION
Adsorption Science and Technology, 2003This study is on the development of high-purity isobutane production from isobutane-enriched stream by gaseous adsorption technology. Isobutane purification from C4 mixture, in which not only isobutane, but also n-butane and several kinds of CJ olefins in small or in trace are involved, is very difficult by a traditional distillation method because of ...
SANG-SUP HAN +3 more
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Oxygen Production by Pressure Swing Adsorption
Separation Science and Technology, 1989Abstract The specific oxygen production capacity and the oxygen recovery of a pressure swing adsorption (PSA) process for the production of oxygen from ambient air by selective adsorption of nitrogen can be increased by operating the process at a superambient temperature.
S. Sircar, W. C. Kratz
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