Fixed-bed adsorption of aromatic C-8 isomers: Breakthrough experiments, modeling and simulation

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Silva, MSP (Author) Other; Mota, JPB (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: Separation and Purification Technology

Vol. 90

Pages: 246-256

ISSN: 1383-5866

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-002-AZ8

DOI: 10.1016/j.seppur.2012.02.034

Abstract (EN): The adsorption of C-8 isomers (p-xylene, m-xylene, o-xylene and ethylbenzene) was studied under the industrial operating conditions of the Parex process. Single- and multi-component breakthrough experiments were carried out on a Barium exchanged faujasite-type zeolite as adsorbent and p-diethylbenzene as desorbent. Equilibrium isotherms of the main components of the Parex process were obtained from single component breakthrough curves with different feed concentrations in i-octane. A mathematical model is presented which, jointly with the equilibrium experimental data, is capable of satisfactorily predicting the breakthrough curves of multi-component mixtures of xylenes, including the breakthrough curves of the real Parex feed mixture.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11