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Kinetic modeling studies of heterogeneously catalyzed biodiesel synthesis reactions

Kapil, A., Wilson, Karen, Lee, Adam Fraser and Sadhukhan, J. 2011. Kinetic modeling studies of heterogeneously catalyzed biodiesel synthesis reactions. Industrial and Engineering Chemistry Research 50 (9) , pp. 4818-4830. 10.1021/ie101403f

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Abstract

The heterogeneously catalyzed transesterification reaction for the production of biodiesel from triglycerides was investigated for reaction mechanism and kinetic constants. Three elementary reaction mechanisms Eley-Rideal (ER), Langmuir- Hinshelwood-Hougen-Watson (LHHW), andHattori with assumptions, such as quasi-steady-state conditions for the surface species andmethanol adsorption, and surface reactions as the rate-determining steps were applied to predict the catalyst surface coverage and the bulk concentration using a multiscale simulation framework. The rate expression based on methanol adsorption as the rate limiting in LHHW elementary mechanism has been found to be statistically the most reliable representation of the experimental data using hydrotalcite catalyst with different formulations.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Chemistry
Subjects: Q Science > QD Chemistry
T Technology > TP Chemical technology
Publisher: American Chemical Society
ISSN: 0888-5885
Last Modified: 19 Mar 2016 22:21
URI: http://orca-mwe.cf.ac.uk/id/eprint/12944

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