摘要
利用固定床反应器,以固体酸为催化剂催化桐油预酯化反应。考察了醇油摩尔比、停留时间、床层温度等因素对预酯化效果的影响。优化反应最适宜的操作条件为:醇油摩尔比6∶1,反应时间88 min,床层温度65℃。在此条件下桐油的酸值可降至0.8 mgKOH/g,达到生物柴油后续酯交换反应酸值小于1.0 mgKOH/g的要求。
Pre-esterification of China wood oil catalyzed by solid acid in fixed bed reactor was researched. Three primary factors in pre-esterification were investigated, and the optimal reaction conditions were obtained as follows ： molar ratio of methanol to oil 6 ： 1, temperature of the fix bed 65 ℃ and the retention time 88 min. The acid value of the oil could be reduced to 0.8 mgKOH/g, which satisfied the transesteritication demand of the acid value less than 1.0 mgKOH/g.
出处
《中国油脂》
CAS
CSCD
北大核心
2007年第9期54-57,共4页
China Oils and Fats
关键词
桐油
酯化反应
酯交换反应
固定床反应器
固体酸
China wood oil
esterification
transesterification
fixed bed reactor
solid acid
