Study on the Direct Production of EthylLevulinate from Cellulose in Ethanol Medium
[1]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(05):104-108.[doi:10.3969/j.issn.1671-6833.2013.05.023]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 05
Page number:
104-108
Column:
Public date:
2013-09-10
- Title:
- Study on the Direct Production of EthylLevulinate from Cellulose in Ethanol Medium
- Keywords:
- Cellulose ; Ethyl levulinate ; Alcoholysis
- CLC:
- TK6
- Abstract:
- The process of ethyl levulinate produced by cellulose in ethanol medium was investigated. Effects ofprocess variables including ratio of solid to liquid,acid concentration, reaction temperature,reaction time andthe addition of water on the yield of ethyl levulinate were studied,The results indicated that higher yield ofethyl levulinate 42.68 mol% was obtained, when the reaction time was 30 min,reaction temperature was 190℃,the ratio of solid to liquid was 1: 15 and the acid concentration was 1.0 wt%,respectively.In addition,the yield of ethyl levulinate decreased significantly with the increase of water addition, and the stability of ethyllevulinate also decreased with the increase of reaction time. Moreover, the original cellulose and the residue ofcellulose were characterized using scanning electron microscopy ( SEM),X-ray diffraction ( XRD) and Fou-rier-transform mid-infrared spectrometry ( FF-IR). The results showed that the structure of original cellulosehad been destroyed absolutely and the crystallinity of cellulose was decreased seriously.
- References:
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Last Update:
1900-01-01
