文献类型：期刊文献

英文题名：Catalytic cracking of acidified oil and modification of pyrolytic oils from soap stock for the production of a high-quality biofuel

作者：Jiang, Xia[1] Long, Feng[1] Zhai, Qiaolong[1] Zhao, Jiaping[1] Liu, Peng[1] Xu, Junming[1,2]

通信作者：Xu, JM[1];Xu, JM[2]

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

年份：2022

卷号：46

期号：4

起止页码：1770-1778

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;EI(收录号：20220511550702);Scopus(收录号：2-s2.0-85123491694);WOS:【SCI-EXPANDED(收录号:WOS:000739506900001)】；

基金：Our investigation was supported by the "National Key Research and Development Project" (Grant No. 2019YFB1504005).

语种：英文

外文关键词：Biofuels - Catalytic cracking - Cracks - Isomerization - Isomers - Olefins

摘要：Soap stocks are by-products obtained during the refining process of vegetable oil, and are mainly feedstocks to produce acidified oil. In this work, an efficient process was developed to convert soap stock into a high-quality biofuel with low impurity content. A combination of acidification and catalytic cracking reactions employed as pretreatment was investigated to decrease the impurity content in the soap stock feedstock for obtaining a value-added biofuel. A high olefin content (approximately 47%) pyrolytic oil was obtained during the pretreatment. For further improvement of the cold flow properties, hydro-isomerization of pyrolytic oil for the formation of iso-alkanes over the Ce-Pt/SAPO-11and Ce-Pt/ZSM-5 catalysts was then carried out. The isomerization reaction temperature could be decreased to 320 degrees C because of the approximately 47% olefin content. The cold filter plugging point (CFPP) of the resulting product could be obtained at -11 degrees C, and the sulfur content could be decreased to lower than 10 ppm, which could meet the EN and ASTM specifications.