Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst

Ying Qing; Houfang Lu; Yingying Liu; Changjun Liu; Bin Liang; Wei Jiang

doi:10.1016/j.cjche.2018.01.010

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Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst
- Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst
- 中国化学工程学报（英文版） 2018年26卷第9期页码：1912-1919
- Affiliations：
  
  2 Institute of New Energy and Low Carbon Technology, Sichuan University,Chengdu,China,610065
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.01.010
  中图分类号：
- 纸质出版：2018
- Accepted：
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Ying Qing, Houfang Lu, Yingying Liu, 等. Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst[J]. 中国化学工程学报（英文版）, 2018,26(9):1912-1919.

Ying Qing, Houfang Lu, Yingying Liu, Changjun Liu, Bin Liang, Wei Jiang. Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst[J]. Chin.J.Chem.Eng., 2018, 26(9): 1912-1919.
Ying Qing, Houfang Lu, Yingying Liu, 等. Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst[J]. 中国化学工程学报（英文版）, 2018,26(9):1912-1919. DOI： 10.1016/j.cjche.2018.01.010.

Ying Qing, Houfang Lu, Yingying Liu, Changjun Liu, Bin Liang, Wei Jiang. Production of glycerol carbonate using crude glycerol from biodiesel production with DBU as a catalyst[J]. Chin.J.Chem.Eng., 2018, 26(9): 1912-1919. DOI： 10.1016/j.cjche.2018.01.010.

摘要

Abstract

The biodiesel production technology catalyzed by 1

8-diazabicycloundec-7-ene (DBU) is developed in this work. Crude glycerol containing DBU and DBU/glycerol/CO

(DGC) ionic compounds reacts directly with dimethyl carbonate (DMC) to produce high value-added glycerol carbonate (GC) catalyzed by DBU and DGC. The catalytic performance of DBU and DGC

as well as the kinetics of the reaction catalyzed by DBU

were investigated. The results show that DGC has a weak catalytic effect on the transesterification of glycerol and DMC. When the temperature is higher than 60℃

DGC catalyzes the reaction jointly with DBU

which is produced from the decomposition of DGC. DBU has a good catalytic effect on the reaction between glycerol and DMC

with 90% conversion of glycerol and 84% selectivity to GC under the following conditions:DMC-to-glycerol molar ratio of 3:1

4.0% DBU (based on glycerol mass)

reaction time of 60 min

and reaction temperature of 40℃. The apparent kinetics results show that the activation energies are 30.95 kJ·mol

-1

and 55.16 kJ·mol

-1

for the forward and reverse GC generation reactions

respectively

and the activation energy of

the decomposition reaction of GC to glycidol (GD) is 26.58 kJ·mol

-1

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