Catalyst Development For Co-activation Of Palm Oil And Limonene To Produce Bio-jet Fuel

With the development of aircraft industry, biomass originated jet fuel has attracted great attention. Currently the traditional bio-jet fuel technique uses the "carbon-chain trimmed" strategy based on two hydro-processing courses. In the light of solving these involved issues including H2, aromatics additives, proper carbon-chain length in the two-stage hydro-processing, herein, we propose a new "carbon-chain filled" strategy, in which a one-pot quantitative co-conversion of lipid and terpene to bio-jet fuels will be realized in absence of H2 (with C7-C17 alkanes and aromatics). With respect to this new process, the in-situ produced H2 from terpene can catalytically hydrodeoxygenate of lipids, and meanwhile the co-produced C7-C15 alkanes and aromatics from terpene can be blended into the C17 alkanes from lipids, which can construct the perfect ingredients for jet-fuels.We start from terpene dehydro-aromatization process, maximize the selectivity of aromatics and hydrogen with regulation of catalyst acidity and reaction atmosphere; HSC and Matlab mathematical tools are used to simulate a reasonable mechanism of dehydrogenation procedure; then fatty acid in limonene was further studied, we developed supported bimetallic catalyst Pd-Ni/HZSM-5 with additional low pressure hydrogen. We optimized the proportion of the metals, the acidity of the support in the catalyst, as well as reaction temperature condition. We also provided the internal hydrogen transfer mechanism over bimetallic alloy catalyst, explained the effects on pore size and acid concentration of support, and metal-support-interaction. Finally, we successfully achieved the co-activation of two biomasses without the presence of hydrogen, and studied the product distribution in detail, and put forward reasonable reaction path of two biomasses.Hence, this will provide a bland new route for bio-jet fuel production from co-reaction of two biomass resources (lipid and terpene) in absence of H2, we also provide reasonable mechanism of these cascade catalytic system, producing much cleaner and greener high-grade bio-jet fuels.