Regime mapping and the role of the intermediate region in wall-coated microreactors

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

J. P. Lopes (Autor) Outra; M. A. Alves (Autor) FEUP; M. S. N. Oliveira (Autor) Outra; S. S. S. Cardoso (Autor) Outra; A. E. Rodrigues (Autor) FEUP

Revista

Título: Chemical Engineering Science

Vol. 94

Páginas: 166-184

ISSN: 0009-2509

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

ISI Web of Science

Scopus - 6 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Outras Informações

ID Authenticus: P-005-0T8

DOI: 10.1016/j.ces.2013.02.037

Abstract (EN): Operation of a wall-coated microreactor can occur in several mass transfer-reaction regimes. We define these regimes analytically in several planes of a multi-parametric map, taking into account the different degrees of concentration profile development, as well as the influence of non-unity orders of reaction and reactant inhibition in the kinetic law. It was found that the regions where conversion can be calculated from simplified mass transfer models are not discriminated by common results for entrance-length. We also illustrate the trade-offs that exist across this operating map concerning the catalyst design (costs associated with loading and volume) and overall system performance (evaluated in terms of reactant conversion, flow efficiency and microreactor effectiveness). It is shown that under certain conditions, the existence of moderate mass transfer resistance can be advantageous (even if internal limitations cannot be avoided), clarifying the role of the intermediate transport-reaction region.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 19