化工学报2018，Vol.69Issue(6)：2496-2502,7.DOI:10.11949/j.issn.0438-1157.20171344
脂肪酸甲酯加氢脱氧和蒸汽裂解两步法制备生物烯烃
Production of bio-olefins from fatty acid methyl esters via hydrodeoxygenation and sequential steam cracking
摘要
Abstract
Conversion of fatty acid methyl esters (FAMEs) to bio-paraffins and further to bio-olefins offers a potential solution to the emerging problems in the biodiesel industry due to the collapse of world oil prices. NiMo/Al2O3catalyst prepared via an impregnation method was evaluated in the catalytic hydrodeoxygenation of FAMEs to bio-paraffins. The obtained paraffins were used as feedstocks to produce bio-olefins via steam cracking. The presulfided NiMo/Al2O3converted the saturated FAMEs selectively to paraffins, without observable changes in the catalyst structure after reaction for 1000 h. Under the cracking conditions of coil-out temperature and pressure at 810℃ and 0.10 MPa, residence time at 0.23 s, and mass ratio of water to paraffins at 0.75, the yields of ethylene, propylene and butadiene were 36.30%, 18.14% and 7.46%, respectively. These data were much higher than the values of 27.45%, 14.74% and 5.31% obtained with naphtha as feedstocks under the similar conditions, indicating that bio-paraffins derived from FAMEs are alternative feedstocks for light olefins.关键词
脂肪酸甲酯/加氢脱氧/生物烷烃/蒸汽裂解/生物烯烃Key words
fatty acid methyl ester/hydrodeoxygenation/bio-paraffin/steam cracking/bio-olefin分类
化学化工引用本文复制引用
孙培永,王海星,周玉鹏,张胜红,姚志龙..脂肪酸甲酯加氢脱氧和蒸汽裂解两步法制备生物烯烃[J].化工学报,2018,69(6):2496-2502,7.基金项目
国家自然科学基金项目 (21703012) （21703012）
北京市教育委员会科技计划项目 (KM 201610017003).supported by the National Natural Science Foundation of China (21703012) and the Scientific Research Project of Beijing Municipal Education Commission (KM 201610017003). （KM 201610017003）
