文献类型：期刊文献

英文题名：Catalytic conversion of triglycerides by metal-based catalysts and subsequent modification of molecular structure by ZSM-5 and Raney Ni for the production of high-value biofuel

作者：Long, Feng[1] Zhai, Qiaolong[1] Liu, Peng[1] Cao, Xincheng[1] Jiang, Xia[1] Wang, Fei[1] Wei, Linshan[1] Liu, Chao[1] Jiang, Jianchun[1,2] Xu, Junming[1,2]

第一作者：Long, Feng

通信作者：Xu, JM[1]

机构：[1]Chinese Acad Forestry, Natl Forestry & Grassland Adm, Natl Engn Lab Biomass Chem Utilizat,Inst Chem Ind, Key Lab Chem Engn Forest Prod,Key Lab Biomass Ene, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Co Innovat Ctr Efficient Proc & Utilizat Forest R, Nanjing 210037, Peoples R China

年份：2020

卷号：157

起止页码：1072-1080

外文期刊名：RENEWABLE ENERGY

收录：;EI(收录号：20202208776002);Scopus(收录号：2-s2.0-85085613987);WOS:【SCI-EXPANDED(收录号:WOS:000541747100088)】；

基金：This work was supported by the Research Institute of New Technology at Chinese Academy of Forestry-Special (CAFYBB2018QC001) and National Natural Science Foundation of China (Grant No. 31770612).

语种：英文

外文关键词：Triglycerides; Catalytic conversion; Deoxygenation; ZSM-5; Raney Ni; Aviation biofuel

摘要：We report herein a catalytic deoxygenation strategy that allows the direct removal of oxygen atoms from triglycerides by lowering the activation energy through the use of metal-based catalysts. Activation energies were investigated by TG analysis, employing fatty acid salts as model compounds. Introducing different metal atoms into carboxyl groups has a substantial effect on the dynamic pyrolytic behavior, and decomposition activation energies varied in the range 80-260 kJ/mol. The catalytic cracking of soybean oil using SnO as a representative catalyst has been investigated in a 5 L reactor, whereby the catalyst lowered the decomposition temperature by approximately 40 degrees C and gave a conversion rate of approximately 66 wt%. A catalytic conversion mechanism has been proposed based on the results of TGFTIR, GC, and GC-MS analyses. The pyrolysis products from the deoxygenation process had a high alkene content, endowing them with great potential for conversion into cyclic hydrocarbons used in real aviation fuels. Such conversion through aromatization and hydrogenation over ZSM-5 and Raney Ni catalyst has been investigated. Overall, a new refining process, including conversion of triglycerides to alkanes and terminal alkenes catalyzed by metal compounds, furnishing viable aviation and diesel fuels, is reported. (C) 2020 Elsevier Ltd. All rights reserved.