Simulation of true moving bed adsorptive reactor: Detailed particle model and linear driving force approximations

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Gomes, PS (Autor) Outra; Leao, CP (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Revista

Título: Chemical Engineering Science

Vol. 62 Nº 24

Páginas: 1026-1041

ISSN: 0009-2509

Editora: Elsevier

Indexação

ISI Proceedings

ISI Web of Knowledge - 12 Citações

Scopus - 16 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-004-BXX

DOI: 10.1016/j.ces.2006.11.008

Resumo (PT): OPTIMAL-DESIGN; SEPARATION; DIFFUSION; OPERATION; SUCROSE; COUNTERCURRENT; CHROMATOGRAPHY; INVERSION

Abstract (EN): A new true moving bed (TMB) adsorptive reactor model with a detailed particle approach is presented introducing the formulation of the mass balance for the solid phase in counter-current moving systems. The system studied here is the enzymatic inversion of sucrose into fructose and glucose and subsequent separation of glucose/fructose; the reaction occurs both in the outer fluid phase and inside particles. Model equations include film mass transfer, intra-particle diffusion resistance, axial dispersion for the outer fluid phase, plug flow of the solid phase and linear adsorption equilibrium of glucose/fructose. This new model is compared with previous LDF-type approximations for reactive systems and applied to pure separative TMB process. The numerical solution of model equations is obtained for transient and steady state with commercial and public domain packages (gPROMS and COLNEW). The influence of the particle size and reaction rate constant is analyzed in the (gamma(2) x gamma(3)) reactive/separation region.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 16