Theoretical analysis of conversion enhancement in isothermal polymeric catalytic membrane reactors

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Zheng, JM (Autor) Outra; J. M. Sousa (Autor) FEUP; Mendes, D (Autor) Outra; Luis Madeira (Autor) FEUP; Adélio Mendes (Autor) FEUP

Revista

Título: Catalysis Today

Vol. 118

Páginas: 228-236

ISSN: 0920-5861

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

ISI Web of Science

Scopus - 4 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-004-GH7

DOI: 10.1016/j.cattod.2005.12.009

Abstract (EN): A theoretical study of polymeric catalytic membrane reactors (PCMR) is performed when a reversible A <-> B reaction is taking place inside the catalytic membrane. The PCMR is assumed to be isothermal, and with a perfectly mixed flow pattern for both retentate and permeate chambers. An analytical expression is derived to calculate the reactor conversion and the reactor conversion enhancement for the case in which the membrane permeability is the same for the reactant and product. When the membrane has different permeabilities for the reactant and product, a semianalytical solution is presented. The results show that, at least theoretically, conversion above thermodynamic equilibrium can be achieved with the PCMR when the membrane has higher permeability for the product than for the reactant. It is also pointed out that, in the PCMR, the environment of the catalyst particle should be quite different from that existing in conventional reactors. This should change the properties of the catalyst particle and it must be carefully considered.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9