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Fixed‐bed adsorption of gases: Effect of velocity variations on transition types
Author(s) -
LeVan M. Douglas,
Costa Carlos A.,
Rodrigues Alirio E.,
Bossy Alain,
Tondeur Daniel
Publication year - 1988
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690340612
Subject(s) - classification of discontinuities , isothermal process , adsorption , inert gas , inert , chemistry , thermodynamics , desorption , mechanics , physics , mathematics , organic chemistry , mathematical analysis
In fixed‐bed adsorption or desorption of gases, velocity variations accompany changes in gas composition, and these variations affect the transition types (spreading waves or shocks). A general criterion is developed for determining the transition type for isothermal monovariant systems (one adsorbable component in inert gas or two adsorbable components with no inert gas). Several examples are given to illustrate the determination of transition types for simple waves, contact discontinuities, shocks, and combined waves.