生物柴油生产废液中甘油的提取及三醋酸甘油酯的合成

上海大学学报(自然科学版) ›› 2010, Vol. 16 ›› Issue (5): 522-525.

生物柴油生产废液中甘油的提取及三醋酸甘油酯的合成

1.上海大学环境与化学工程学院，上海 200444; 2.上海绿铭环保科技有限公司，上海 201107

收稿日期:2010-07-02 出版日期:2010-10-30 发布日期:2010-10-30
通讯作者: 郭晓亚(1976～)，女，副教授，博士,研究方向为生物质能源及固废资源化. E-mail:gxy@shu.edu.cn
基金资助:
上海市联盟计划资助项目（094250）；上海市重点学科建设资助项目（S30109）

Synthesis of Glyceryol Triacetate by Glycerol Extracted from Waste Water

1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; 2. Shanghai Lüming Environmental Protection Technology Co., Ltd., Shanghai 201107, China

Received:2010-07-02 Online:2010-10-30 Published:2010-10-30

摘要/Abstract

摘要：

将生物柴油酶法生产工艺的废液（含甘油5%），经过碱处理—减压蒸馏法除溶剂—除胶—真空蒸馏处理后，获得纯度为90.43％的甘油.提取的甘油和冰醋酸反应，反应条件如下：磷钨酸为催化剂，甲苯为带水剂，温度110 ℃，甘油与冰醋酸的物料比为1∶5，催化剂使用量为原料甘油的1.6%，反应时间6 h.三醋酸甘油酯的收率可以达到90％以上.

关键词: 生物柴油；甘油；三醋酸甘油酯；磷钨酸

Abstract:

Waste water from enzymatic biodiesel technology containing 5% glycerol was treated by alkali treatment, vacuum distillation, removing colloidal, and vacuum distillation to collect glycerol of purity up to 90.43%. The glycerol reacted with acetic acid (material ratio 1∶5) to get glyceryol triacetate with phosphotungstic acid catalyst (accouting for 1.6% of glycerol), toluene as water-carrying agent, at 110 ℃. Thus more than 90% glyceryol triacetate were produced in 6 hours. 

Key words: biodiesel; glycerin; glyceryl triacetate; phosphotungstic acid

中图分类号:

TK 09

郭晓亚1 慈冰冰1 于晶露1 李守光1 胡薇1 汤祥惠2. 生物柴油生产废液中甘油的提取及三醋酸甘油酯的合成[J]. 上海大学学报(自然科学版), 2010, 16(5): 522-525.

GUO Xiao-Ya-1, CI Bing-Bing-1, YU Jing-Lu-1, LI Shou-Guang-1, HU Wei-1, TANG Xiang-Hui-2. Synthesis of Glyceryol Triacetate by Glycerol Extracted from Waste Water[J]. Journal of Shanghai University（Natural Science Edition）, 2010, 16(5): 522-525.