INTRAPARTICLE DIFFUSION CONVECTION MODELS FOR PRESSURIZATION AND BLOWDOWN OF ADSORPTION BEDS WITH LANGMUIR ISOTHERM

• Tipo: Artigo em Revista Científica Internacional
• Data: 1992

Autores

LU, ZP (Autor) Outra; José Miguel Loureiro (Autor) FEUP; LEVAN, MD (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Revista

Título: Separation Science and Technology

Vol. 27 Nº 14

Páginas: 1857-1874

ISSN: 0149-6395

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-001-Q6C

DOI: 10.1080/01496399208019454

Abstract (EN): Intraparticle diffusion/convection and equilibrium models are used to simulate the bed dynamics of pressurization and blowdown steps of PSA processes with binary mixtures of inert and adsorbable species. The effect of the nature of the equilibrium isotherm, i.e., linear and Langmuir isotherms, is discussed. The improvement of mass transfer inside the adsorbent by increasing particle permeability or decreasing particle size is addressed. Simulation results show that using "large-pore" adsorbents, i.e., increasing permeability to cause a high intraparticle convective flow instead of decreasing particle size to reduce intraparticle mass transfer resistances, is a good choice in PSA processes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18