ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Pressurization and blowdown steps in pressure swing adsorption (PSA) with binary mixtures of inert and adsorbable species are studied. Modeling involves mass balances for the bulk fluid phase and inside particles, that is, intraparticle diffusion/convection models, momentum balance equations, and linear adsorption equilibrium isotherm. The importance of intraparticle convection in PSA is assessed. Mass transfer inside pores is enhanced by intraparticle convection, which leads to a better efficiency of adsorption (pressurization) and desorption (blowdown) processes. Performance is improved by intraparticle convection and lies between diffusion and equilibrium limits, as shown in propagation profiles of the adsorbable species mole fraction in the bed and inside particles.
Additional Material:
9 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690380607
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