DIFFUSIONAL KINETICS OF CATALYTIC VAPOR-PHASE REVERSIBLE REACTIONS WITH DECREASING TOTAL NUMBER OF MOLES.

J. M. Berty, S. Lee, K. Sivagnanam, F. Szeifert

Research output: Conference contribution

4 Citations (Scopus)

Abstract

Many industrial processes like ammonia and methanol syntheses, SO//2 oxidation and vapor-phase hydrogenations, involve the decrease in the total number of moles, which creates an inward flow in the pores of the catalyst. For the product to be able to diffuse against this flow, high concentration gradient is needed; otherwise, the rate of process slows down. This equilibrium conditions can be reached inside the pores, while under the bulk gas conditions outside the pores, the system is far from equilibrium limitations. This is the reason why diffusional limitations can be experimentally observed under certain conditions where the Weisz-Prater criteria would predict none. The phenomenon was mathematically modeled and digitally simulated for a case of multiple reactions under non-isothermal conditions.

Original languageEnglish
Title of host publicationInstitution of Chemical Engineers Symposium Series
PublisherInst of Chemical Engineers (EFCE Event n 299)
Pages455-462
Number of pages8
Edition87
ISBN (Print)0852951760
Publication statusPublished - dec. 1 1984

Publication series

NameInstitution of Chemical Engineers Symposium Series
Number87
ISSN (Print)0307-0492

ASJC Scopus subject areas

  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'DIFFUSIONAL KINETICS OF CATALYTIC VAPOR-PHASE REVERSIBLE REACTIONS WITH DECREASING TOTAL NUMBER OF MOLES.'. Together they form a unique fingerprint.

  • Cite this

    Berty, J. M., Lee, S., Sivagnanam, K., & Szeifert, F. (1984). DIFFUSIONAL KINETICS OF CATALYTIC VAPOR-PHASE REVERSIBLE REACTIONS WITH DECREASING TOTAL NUMBER OF MOLES. In Institution of Chemical Engineers Symposium Series (87 ed., pp. 455-462). (Institution of Chemical Engineers Symposium Series; No. 87). Inst of Chemical Engineers (EFCE Event n 299).