| Kinetics of glucose ethanolysis catalyzed by extremely low sulfuric acid in ethanol medium简 |
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| 引用本文： | 朱伟娜,常春,马晨,杜风光. Kinetics of glucose ethanolysis catalyzed by extremely low sulfuric acid in ethanol medium简[J]. 中国化学工程学报, 2014, 22(2): 238-242. DOI: 10.1016/S1004-9541(14)60049-5 |
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| 作者姓名： | 朱伟娜 常春 马晨 杜风光 |
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| 作者单位： | 1.School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;2.Shanghai Jiao Tong University Library, Shanghai Jiao Tong University, Shanghai 200240, China;3.State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （21176227） and the State Key Laboratory of Motor Vehicle Biofuel Technology （2013011）. |
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| 摘 要： | The kinetics for production of ethyl levulinate from glucose in ethanol medium was investigated. The experiments were performed in various temperatures （433-473 K） and initial glucose concentrations （0.056-0.168 mol·L-1） with extremely low sulfuric acid as the catalyst. The results show that higher temperature can improve the conversion of glucose to ethyl levulinate, with higher yield of ethyl levulinate （44.79%, by mole） obtained at 473 K for 210 min. The kinetics follows a simplified first-order kinetic model. For the main and side reactions, the values of activation energy are 122.64 and 70.97 kJ·mo1-1, and the reaction orders are 0.985 and 0.998, respectively.
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| 关 键 词： | ethyl levulinate glucose kinetics biomass |
| 收稿时间： | 2013-04-08 |
Kinetics of Glucose Ethanolysis Catalyzed by Extremely Low Sulfuric Acid in Ethanol Medium |
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| ZHU Weina,CHANG Chun,MA Chen and DU Fengguang. Kinetics of Glucose Ethanolysis Catalyzed by Extremely Low Sulfuric Acid in Ethanol Medium[J]. Chinese Journal of Chemical Engineering, 2014, 22(2): 238-242. DOI: 10.1016/S1004-9541(14)60049-5 |
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| Authors: | ZHU Weina CHANG Chun MA Chen DU Fengguang |
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| Affiliation: | 1.School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;2.Shanghai Jiao Tong University Library, Shanghai Jiao Tong University, Shanghai 200240, China;3.State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China |
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| Abstract: | The kinetics for production of ethyl levulinate from glucose in ethanol medium was investigated. The experiments were performed in various temperatures (433-473 K) and initial glucose concentrations (0.056-0.168 mol·L-1) with extremely low sulfuric acid as the catalyst. The results show that higher temperature can improve the conversion of glucose to ethyl levulinate, with higher yield of ethyl levulinate (44.79%, by mole) obtained at 473 K for 210 min. The kinetics follows a simplified first-order kinetic model. For the main and side reactions, the values of activation energy are 122.64 and 70.97 kJ·mol-1, and the reaction orders are 0.985 and 0.998, respectively. |
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| Keywords: | ethyl levulinate glucose kinetics biomass |
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