ABSTRACT
A simple method, supplying water with Jatropha oil, was proposed to enhance the conversion of selectivity of lower olefins over zeolite catalysts, H-ZSM-5 and SAPO-11. The yield of lower olefins was as high as 54 C mol%, and the selectivity for lower olefins reached 58 C mol%. The optimum condition on catalytic conversion of jatropha oil was 600 °C of reaction temperature, 3.0 s of contact time and 0.7 of water fraction with SAPO-11. The presence of water effectively suppressed the progress of Diels-Alder and hydrogen transfer reaction probably due to the reduced number of acid sites.
Acknowledgments
We would like to thank Prof. Toshio Tsutsui, Prof. Takami Kai, and collaborators for their insightful discussion.