Premium
Absorption and desorption accompanied by a reversible reaction
Author(s) -
Porter K. E.,
Cantwell A. D. C.,
McDermott C.
Publication year - 1971
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.690170311
Subject(s) - desorption , penetration (warfare) , absorption (acoustics) , thermodynamics , penetration depth , chemistry , numerical analysis , reaction rate , analytical chemistry (journal) , mathematics , adsorption , mathematical analysis , physics , chromatography , optics , organic chemistry , catalysis , operations research
The processes of absorption and desorption with reversible reaction are compared theoretically for reactions of the type A ⇌ nB . With the same concentration difference between bulk and interface, it is found that in general, the rate of desorption is lower than that of absorption. Under certain conditions the difference may be as much as 35%. The analysis is based on the penetration theory. The numerical solution introduces a new transformation of the time and distance variables (based on the error function) which reduces the computing time required. An analytical examination of the penetration theory equations provides an explanation of the results of the numerical solution.