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首页> 外文期刊>Fuel >Catalytic deoxygenation of triglycerides and fatty acids to hydrocarbons over carbon-supported nickel
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Catalytic deoxygenation of triglycerides and fatty acids to hydrocarbons over carbon-supported nickel

机译：碳载镍上甘油三酸酯和脂肪酸催化脱氧为烃

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摘要

The catalytic deoxygenation of triglycerides and fatty acids to hydrocarbons through decarboxylation/ decarbonylation (deCO_x) has been investigated in a semi-batch autoclave over 20 wt.% Ni/C and 5 wt.% Pd/C catalysts. The boiling point distribution plots of the reaction products show that 20 wt.% Ni/C tends to yield lighter products in the C10-C17 range than 5 wt.% Pd/C, a fact which may be exploited for fuel blending purposes. Differences in the performance of these two catalysts may be attributed to the higher acidity of the Ni-based formulation, which favors the adsorption of carbonaceous species and the occurrence of cracking reactions. The effect of the gas employed (N_2,10% H_2/N_2 or H_2) was also examined and while the presence of hydrogen resulted in improved catalytic performance, the optimum hydrogen partial pressure was found to depend on the catalyst used. For triglyceride deoxygenation, analysis of the reaction mixture at different reaction times indicates that the reaction proceeds through the deCO_x of fatty acid intermediates.
机译：在半分批高压釜中，在20％（重量）的Ni / C和5％（重量）的Pd / C催化剂上，研究了甘油三酸酯和脂肪酸通过脱羧/脱羰基（deCO_x）催化脱氧成烃的方法。反应产物的沸点分布图表明，在C10-C17范围内，20％（重量）的Ni / C倾向于比5％（重量）的Pd / C产生更轻的产物，这一事实可用于混合燃料。这两种催化剂的性能差异可能归因于镍基配方的较高酸度，这有利于碳质物质的吸附和裂解反应的发生。还检查了所用气体（N_2,10％H_2 / N_2或H_2）的作用，虽然氢气的存在改善了催化性能，但发现最佳氢气分压取决于所用催化剂。对于甘油三酸酯脱氧，在不同反应时间对反应混合物的分析表明，反应通过脂肪酸中间体的deCO_x进行。

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  • 来源
    《Fuel》 |2013年第1期|1010-1017|共8页
  • 作者

    Eduardo Santillan-Jimenez; Tonya Morgan; Joseph Lacny; Susanta Mohapatra; Mark Crocker;

  • 作者单位

    Center for Applied Energy Research. University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA;

    Center for Applied Energy Research. University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA;

    Center for Applied Energy Research. University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA;

    Center for Applied Energy Research. University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA;

    Center for Applied Energy Research. University of Kentucky, 2540 Research Park Drive, Lexington, KY 40511, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    triglyceride; fatty acid; deoxygenation; decarboxylation; ni;

    机译：甘油三酸酯脂肪酸;脱氧脱羧你;

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