Study on Production of Ethyl Levulinate from Cellulose Catalyzed by Solid Acid Al2(SO4)3
[1]Chang Chun,Kong Pengfei,Zhao Shiqiang.Study on Production of Ethyl Levulinate from Cellulose Catalyzed by Solid Acid Al2(SO4)3[J].Journal of Zhengzhou University (Engineering Science),2016,37(04):31-35.[doi:10.13705/j.issn.1671-6833.2016.04.007]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 04
Page number:
31-35
Column:
Public date:
2016-08-31
- Title:
- Study on Production of Ethyl Levulinate from Cellulose Catalyzed by Solid Acid Al2(SO4)3
- Keywords:
- cellulose; ethyl levulinate; Al2 (SO4) 3; alcoholysis
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2016.04.007
- Abstract:
- Using Al2 (SO4) 3 as a solid acid catalyst, the process of catalyzing cellulose to produce ethyl levulinate in the ethanol/toluene system was investigated. The effects of the volume fraction of co solvent toluene, reaction temperature, catalyst dosage, and reaction time on the yield of ethyl levulinate were investigated. The catalytic effect of the catalyst on different carbohydrates and its reusability were also investigated. The results showed that at a toluene volume fraction of 10% and a reaction temperature of 180 ℃, When the catalyst dosage is 0.8g and the reaction time is 3 hours, the molar yield of cellulose alcoholysis to ethyl levulinate is as high as 51.6%; The molar yields of fructose, glucose, sucrose, and inulin to produce ethyl levulinate are 54.3l%, 47.3%, 51.4%, and 49.6%, respectively. Al2 (SO4) 3 has good universal applicability for the alcoholysis of carbohydrates to produce ethyl levulinate. The catalyst still exhibits good catalytic activity after being recycled and reused for 5 times
- References:
- -
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