[1]孔鹏飞,常春,赵世强.Al2(SO4)3催化纤维素生成乙酰丙酸乙酯的实验研究[J].郑州大学学报(工学版),2016,37(04):31-35.[doi:10.13705/j.issn.1671-6833.2016.04.007]
　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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Al2(SO4)3催化纤维素生成乙酰丙酸乙酯的实验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年04期
页码:
31-35
栏目:
出版日期:
2016-08-31

文章信息/Info

Title:
Study on Production of Ethyl Levulinate from Cellulose Catalyzed by Solid Acid Al2(SO4)3
作者:
孔鹏飞; 常春; 赵世强
郑州大学化工与能源学院,河南郑州,450001
Author(s):
School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, Henan 450001
关键词:
纤维素; 乙酰丙酸乙酯; Al2(SO4)3; 醇解
Keywords:
cellulose; ethyl levulinate; Al2 (SO4) 3; alcoholysis
DOI:
10.13705/j.issn.1671-6833.2016.04.007
文献标志码:
A
摘要:
以Al2(SO4)3为固体酸催化剂,考察其在乙醇/甲苯体系中催化纤维素生成乙酰丙酸乙酯的工艺,探讨了共溶剂甲苯的体积分数、反应温度、催化剂用量以及反应时间对乙酰丙酸乙酯产率的影响,同时考察了该催化剂对不同碳水化合物的催化作用及其重复利用性.结果表明:在甲苯体积分数为10％,反应温度为180℃,催化剂用量为0.8g,反应时间为3h时,纤维素醇解转化为乙酰丙酸乙酯的摩尔产率高达51.6％;果糖、葡萄糖、蔗糖和菊糖转化生成乙酰丙酸乙酯的摩尔产率分别为54.3l％、47.3％、51.4％和49.6％,Al2(SO4)3对碳水化合物醇解生成乙酰丙酸乙酯具有良好的普遍适用性.该催化剂经回收重复使用5次后依然具有良好的催化活性.
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

相似文献/References:

[1]常春,安冉,孔鹏飞.SO42-/ZrO2/USY催化纤维素醇解制备乙酰丙酸乙酯[J].郑州大学学报(工学版),2018,39(02):80.[doi:10.13705/j.issn.1671-6833.2017.05.010]
　An Chun,An Ran,Kong Pengfei.Alcoholysis of Cellulose into Ethyl Levulinate Catalyzed by SO2- 4/ZrO2/USY[J].Journal of Zhengzhou University (Engineering Science),2018,39(04):80.[doi:10.13705/j.issn.1671-6833.2017.05.010]
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[3]常春,朱伟娜,候胜利,等.纤维素在乙醇介质中直接生成乙酰丙酸乙酯的研究[J].郑州大学学报(工学版),2013,34(05):104.[doi:10.3969/j.issn.1671-6833.2013.05.023]
　CHANG Chun,ZHU Wei-na,HOU Sheng-li,et al.Study on the Direct Production of EthylLevulinate from Cellulose in Ethanol Medium[J].Journal of Zhengzhou University (Engineering Science),2013,34(04):104.[doi:10.3969/j.issn.1671-6833.2013.05.023]

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