Novel analytical solution for a simulated moving bed in the presence of mass-transfer resistance

• Type: Article in International Scientific Journal
• Date: 2004

Authors

Silva, VMT (Author) Other; Minceva, M (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: Industrial & Engineering Chemistry Research

Vol. 43 No. 16

Pages: 4494-4502

ISSN: 0888-5885

Publisher: American Chemical Society

Indexing

ISI Proceedings

ISI Web of Knowledge - 24 Citations

Scopus - 24 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-000-91B

DOI: 10.1021/ie030610i

Resumo (PT): A novel analytical solution for a simulated moving bed (SMB) with a linear adsorption equilibrium isotherm in the presence of mass transfer was derived. The proposed solution is based on the equivalent steady-state true moving bed (TMB) analogy. This analytical solution allows for the calculation of the liquid and solid concentration profiles in all sections of the SMB. The analytical solution was used in the prediction of the "separation volume" for glucose/fructose separation. Emphasis was placed on the effects of the liquid/solid velocity ratios in sections I and IV (gamma(I) and gamma(IV), respectively) on the performance of the SMB. The value of gamma(I) more significantly affects the SMB performance than the value of gamma(IV) and should be tuned carefully in a narrow zone of values. The main advantage of the presented solution is the rapid determination of the separation volume in the presence of mass-transfer limitations, according to the required purity of the extract and raffinate.

Abstract (EN): A novel analytical solution for a simulated moving bed (SMB) with a linear adsorption equilibrium isotherm in the presence of mass transfer was derived. The proposed solution is based on the equivalent steady-state true moving bed (TMB) analogy. This analytical solution allows for the calculation of the liquid and solid concentration profiles in all sections of the SMB. The analytical solution was used in the prediction of the "separation volume" for glucose/fructose separation. Emphasis was placed on the effects of the liquid/solid velocity ratios in sections I and IV (gamma(I) and gamma(IV), respectively) on the performance of the SMB. The value of gamma(I) more significantly affects the SMB performance than the value of gamma(IV) and should be tuned carefully in a narrow zone of values. The main advantage of the presented solution is the rapid determination of the separation volume in the presence of mass-transfer limitations, according to the required purity of the extract and raffinate.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9