生物基炭质催化剂催化大豆皂脚酸化油制备生物柴油  

Biodiesel production from acidified soapstocks using a biomass-based carbonaceous catalyst

作　　者：郭峰[1] 乌日娜[2] 梁志霞[1] 刘卓[1] 王同华[2] 杨天奎[1] 修志龙[1] 

机构地区：[1]大连理工大学环境与生命学院,辽宁大连116024 [2]大连理工大学化工学院,辽宁大连116024

出　　处：《中国油脂》2009年第4期35-38,共4页China Oils and Fats

基　　金：863计划(2007AA02Z208);973计划(2007CB714300)

摘　　要：选择大豆皂脚作为原料制备酸化油,并选用废弃的落叶松木屑,直接磺化制备生物基炭质催化剂,催化皂脚酸化油制备生物柴油。考察了生物基炭质催化剂催化皂脚酸化油生产生物柴油的工艺,得出最佳反应条件为:催化剂用量为皂脚酸化油的5.0%,反应温度70℃,甲醇与皂脚酸化油摩尔比7.5∶1,醌化反应5 h,生物柴油酯化率为97.22%。与相同磺酸根基团当量的H2SO4相比,生物基炭质催化剂催化酯化反应能力更佳。In traditional biodiesel production,the feedstock cost is high and the separation of homogeneous catalysts is difficult. To resolve these problems,low - cost source of acidified soybean soapstocks was esterified to produce biodiesel by a biomass - based carbonaceous catalyst obtained from sulphonation of larch powder. The biodiesel yield was 97.22% under the following optimal esterification conditions ：biomass - based carbonaceous catalyst dosage 5.0%, reaction temperature 70 ℃, molar ratio of methanol to acidified soybean soapstocks 7.5 ： 1, and reaction time 5 hours. Compared with homogeneous acid - catalyzed method,this method could sim- plify the separation process and greatly reduce the cost of biodiesel.

关 键 词：大豆皂脚 酸化 生物基炭质催化剂 酯化反应 生物柴油 

分 类 号：TE667[石油与天然气工程—油气加工工程]