Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 122, Issue -, Pages 266-276Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2018.06.007
Keywords
Epoxidation; Kinetics; Mass transfer; Fatty acid methyl esters; liquid liquid reacting system
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Funding
- Ministry of Science and Technology of the Peoples Republic of China (863 Program) [2014AA022103]
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In industry, mass transfer limitation is a major and widespread problem in most of vegetable oil epoxidation reactors. To improve the quality of products and the efficiency of production, it is essential to understand the law of mass transfer in the epoxidation reaction system. In present work, epoxidation of fatty acid methyl esters with performic acid generated in situ was studied in a stirred vessel at 50-80 degrees C. At first, the Sauter mean diameter (D-32) was determined and correlated, the correlation can predict the D-32 evolution of the reaction. Then, individual experiments were performed to separately determine the intrinsic kinetic parameters and the mass transfer parameters. Finally, a macroscopic kinetic model was developed, which can well describe the effect of droplet size on the reaction. Noteworthy, the mass transfer limitation was significantly increased when reaction temperature rises to 80 degrees C.
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