Simulated moving-bed reactor: Reactive-separation regions

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Minceva, M (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Revista

Título: AICHE Journal

Vol. 51 Nº 12

Páginas: 2737-2751

ISSN: 0001-1541

Editora: Wiley-Blackwell

Indexação

ISI Proceedings

ISI Web of Knowledge - 7 Citações

Scopus - 6 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-000-0Z6

DOI: 10.1002/aic.10532

Resumo (PT): This work focuses on the design of a simulated moving-bed rector (SMBR) where reaction A -> B + C takes place. The reactive-separation regions were determined for two reactive systems: (1) inversion of sucrose, with enzyme introduced in the unit through the eluent stream and Michaelis-Menten reaction kinetics, and (2) A -> B + C reaction, with immobilized enzyme and linear reaction kinetic law. In both systems the reaction species exhibit linear adsorption isotherms. The steady-state equivalent true moving-bed reactor (TMBR) analogy was applied in the algorithm used for determination of the reactive-separation regions. The influence of the mass-transfer limitation, reaction rate, product purities, reactant Henry constant, and SMBR configuration on the shape and position of reactive-separation regions was analyzed. It was shown that in certain conditions the reactive-separation regions extended out of the separation regions obtained for nonreactive SMB for product (B and C) separation. (c) 2005 American Institute of Chemical Engineers.

Abstract (EN): This work focuses on the design of a simulated moving-bed rector (SMBR) where reaction A -> B + C takes place. The reactive-separation regions were determined for two reactive systems: (1) inversion of sucrose, with enzyme introduced in the unit through the eluent stream and Michaelis-Menten reaction kinetics, and (2) A -> B + C reaction, with immobilized enzyme and linear reaction kinetic law. In both systems the reaction species exhibit linear adsorption isotherms. The steady-state equivalent true moving-bed reactor (TMBR) analogy was applied in the algorithm used for determination of the reactive-separation regions. The influence of the mass-transfer limitation, reaction rate, product purities, reactant Henry constant, and SMBR configuration on the shape and position of reactive-separation regions was analyzed. It was shown that in certain conditions the reactive-separation regions extended out of the separation regions obtained for nonreactive SMB for product (B and C) separation. (c) 2005 American Institute of Chemical Engineers.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15