INTRAPARTICLE CONVECTION EFFECT ON PRESSURIZATION AND BLOWDOWN OF ADSORBERS

• Type: Article in International Scientific Journal
• Date: 1992

Authors

LU, ZP (Author) Other; José Miguel Loureiro (Author) FEUP; LEVAN, MD (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: AICHE Journal

Vol. 38 No. 3

Pages: 857-867

ISSN: 0001-1541

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 13 Citations

Scopus - 12 Citations

Other information

Authenticus ID: P-001-PFX

DOI: 10.1002/aic.690380607

Abstract (EN): 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 con vection, 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11