[1]邬国英,林西平,巫淼鑫,等.制备生物柴油的副产物甘油分离与精制工艺的研究[J].常州大学学报(自然科学版),2003,(04):17-19.
　WU Guo -ying,LIN Xi -ping,WU Miao -xin,et al.Study on the Recovery and Ref ining Technology of Glycerol from the By -product of Transesteri fication of Rapeseed Oi l with Methanol[J].Journal of Changzhou University(Natural Science Edition),2003,(04):17-19.
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制备生物柴油的副产物甘油分离与精制工艺的研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2003年04期
页码:
17-19
栏目:
出版日期:
2003-12-25

文章信息/Info

Title:
Study on the Recovery and Ref ining Technology of Glycerol from the By -product of Transesteri fication of Rapeseed Oi l with Methanol
作者:
邬国英1 ;  林西平1 ;  巫淼鑫1 ;  胡　飞2
1.江苏工业学院江苏省精细石油化工重点实验室, 江苏 常州 213016
Author(s):
WU Guo -ying 1 ;  LIN Xi -ping 1 ;  WU Miao -xin 1 ;  HU Fei 2
1 .Jiang su Key Laboratory of Fine Petrochemical Engineering , Jiangsu Poly technic University , Changzhou 213016 , China
关键词:
精制工艺; 甘油; 甲醇; 蒸馏
Keywords:
recovery and refining technology ; g ly cerol ; methanol ; distillation
分类号:
T Q 223.16 ;TQ 028.1
文献标志码:
A
摘要:
研究了菜籽油与甲醇酯交换反应的副产物甘油的分离与精制工艺, 以及酯交换反应条件对甘油分离工艺的影响。研究表 明:生成物静止分层后, 反应下层液可采用甲醇为稀释剂(加入量为其质量的16.7 %), 中和后的pH 值以5.0 ～ 6.0 为宜, 在 离心温度≮20 ℃, 离心机转速≥2 000 r/ min , 离心时间为7.5 ～ 10 min 时, 分离得到的粗甘油经减压蒸馏, 取164 ～ 204 ℃馏 分, 其甘油纯度大于98 %, 甘油的总收率为78 %。
Abstract:
In this paper , the recovery and ref ining technology of glycerol from the by -product of transesterif ication of rapeseed oil w ith methanol was researched .The effect of the reaction conditions and the separation procedure on the yield of glycerol w as discussed .Af ter stopping of stirring react mixture , the crude product was separated into tw o layers .The bottom layer was first diluted with MeOH , w hose usage amount of 16.7 % based on the total amount of bot tom layer , then was neut rialized to pH =5.0 -6.0 by adding 46 % H2SO4 . Result s showed that the yield of glycerol was high under these separation conditions :cent rifugal temperature w as ≮20 ℃, cent rifugalro tation rate ≥2 000 r/min , cent rifugal time 7.5 -10 min .The total yield of glycerol was up to 78 % based on the theoretical value and the glycerol purity in the end -product w as 98 %.

参考文献/References:

[1] 徐匡迪.“ 我国生物柴油产业发展座谈会” 会议纪要[Z] .2001 .
[2] 宋国安.我国甘油生产亟待开发[J] .陕西粮油科技, 1996 , 21 (1):15 -18 .
[3] 天津大学化工技术基础实验教研室.“ 正交试验法” ·化工基 础实验技术[M] .天津:天津大学出版社, 1989.
[4] 邬国英, 巫淼鑫, 林西平, 等.植物油制备生物柴油[J] . 江苏石油化工学院学报, 2002 , 14 (3):8 -11.
[5] 李建和.醇解连续化反应中甘油分离理论浅析[J] .日用化 学工业, 1994 , 6 :8 -11.
[6] 忻耀年, Sondermann B , Emersleben B.生物柴油的生产和应用 [J] .中国油脂, 2001 , 26 (5):72 -77.

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备注/Memo

备注/Memo:
基金项目:中国石油化工集团公司资助项目(102019) 作者简介:邬国英(1942 -), 女, 上海人, 教授;2 -本院化学工程系2003 届毕业生。
更新日期/Last Update: 2003-12-25