Propyne hydrogenation in a continuous polymeric catalytic membrane reactor

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Lúcia Brandão (Author) FEUP; Luis Madeira (Author) FEUP; Adélio Mendes (Author) FEUP

Journal

Title: Chemical Engineering Science

Vol. 62 No. 24

Pages: 6768-6776

ISSN: 0009-2509

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 10 Citations

ISI Web of Science

Scopus - 12 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-004-5WH

DOI: 10.1016/j.ces.2007.07.054

Abstract (EN): Propyne hydrogenation was studied in a continuous polymeric catalytic membrane reactor (pCMR), both experimentally and theoretically. It was used a poly(dimethylsiloxane) (PDMS) composite membrane with an average thickness of 4.4 mu m, loaded with 5 wt% of 9 nm diameter Pd clusters. The reaction was conducted at 308 K and several feed compositions at a fixed flow rate were tested. The mathematical model proposed includes the mass balances to the retentate and permeate chambers and the mass balance and transport kinetics through the catalytic membrane. The pCMR model also considers a reaction rate equation composed of two terms: the propyne to propylene and the propylene to propane hydrogenations. The selectivity between these two reactions is described by the bicomponent adsorption of propyne and propylene obtained by the IAST model (thermodynamic selectivity). The proposed model represents quite well the experimental data regarding the flow rates and mixture compositions of the permeate and retentate streams.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9