Kinetic modeling studies of heterogeneously catalyzed biodiesel synthesis reactions

Ankur Kapil, Karen Wilson, Adam F. Lee, Jhuma Sadhukhan

Research output: Contribution to journalArticlepeer-review

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), and Hattori with assumptions, such as quasi-steady-state conditions for the surface species and methanol 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.
Original languageEnglish
Pages (from-to)4818-4830
Number of pages13
JournalIndustrial and Engineering Chemistry Research
Volume50
Issue number9
Early online date7 Jan 2011
DOIs
Publication statusPublished - 4 May 2011

Bibliographical note

This document is the Accepted Manuscript version of a Published Work that appeared in final form in I&EC Research, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/ie101403f

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