PSA simulation using particle complex models

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Adélio Mendes (Author) FEUP; Carlos Costa (Author) FEUP; Alírio Rodrigues (Author) FEUP

Journal

Title: Separation and Purification Technology

Vol. 24

Pages: 1-11

ISSN: 1383-5866

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

ISI Web of Science

Scopus - 10 Citations

COMPENDEX

Scientific classification

CORDIS: Technological sciences > Technology > Biotecnology > Downstream processing

Other information

Authenticus ID: P-000-VEG

DOI: 10.1016/s1383-5866(00)00191-x

Abstract (EN): This study presents several PSA with complex particle models: dusty gas model (PSA/DG), linear driving force (LDF) approximation to the DG (PSA/LDF-DG) and LDF approximation extensions when surface (PSA/LDF-DGSD) or micropore diffusion (PSA/LDF-DGMD) are important. A comparison between the PSA/DG and PSA/LDF-DG models is shown and discussed in two situations: short and long cycles. Also some results in the literature are discussed in the light of these LDF approximations. It was concluded that the PSA/LDF-DG is a good approximation to the PSA/DG for long cycles. For short cycles a special algorithm was developed, where two time scales have to be considered. It was also concluded that the time delay presented by the LDF-DG has to be considered in order to reproduce the PSA/DG results. This can explain the reason why some authors found difficulties using the LDF model in PSA simulations. Some simulation results are shown when the PSA/LDF-DGSD or PSA/LDF-DGMD models are used and compared with equivalent results of the PSA/LDF-DG model.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11