期刊论文

中文

中国油脂

1003-7969

2014

39

10

59-62

湖南省科技计划（2013SK3145） 湖南省发改委科技基本建设项目（湘发改高技[2012]1493号）

本校为第一机构

以废白土油为原料,采用酯化和酯交换两步法制备生物柴油。选用硫酸铁作为酯化催化剂,选用氢氧化钠作为酯交换催化剂。利用正交实验优化两步法工艺条件,得到酯化反应中各因素最佳的水平组合为硫酸铁用量4%、醇油摩尔比14∶ 1、反应温度70℃、反应时间3 h,得到酯交换反应中各因素最佳的水平组合为醇油摩尔比6∶ 1、氢氧化钠用量1. 4%、反应温度70℃、反应时间2. 5 h。在最佳的酯化和酯交换工艺条件下,总转酯率达到96. 4%,所得的生物柴油主要质量指标与0~#柴油接近。

Biodiesel was producted from waste clay oil by two - step catalytic method of esterification and transesterification. With ferric sulfate as catalyst in esterification reaction and sodium hydroxide as catalyst in transesterification reaction, the conditions of the two - step catalytic method were optimized by orthogohal experiment. The results showed that the optimal esterification conditions were obtained as follows： ferric sulfate dosage 4%, molar ratio of methanol to oil 14： 1, reaction temperature 70 ℃, reaction time 3 h; and the optimal...