Modified solid acids derived from biomass based cellulose for one-step conversion of carbohydrates into ethyl levulinate

作     者：Jun Zhang Jinzhu Chen 

作者机构：Key Laboratory of Renewable EnergyChinese Academy of SciencesGuangzhou Institute of Energy ConversionChinese Academy of Sciences 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2016年第25卷第5期

页      面：747-753页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081702[工学-化学工艺] 0808[工学-电气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：supported by the Natural Science Foundation of Guangdong Province, China (2014A030310386, 2016A030313173, 2015A030312007) the National Natural Science Foundation of China (21472189) the National Basic Research Program of China (973 Program, 2012CB215304) Science and Technology Planning Project of Guangdong Province, China (2015A010106010) Open fund of Key Laboratory of Renewable Energy, Chinese Academy of Sciences (y507ja1001) 

主　　题：Carbon catalysts Carbohydrates Ethyl levulinate Stability 

摘      要：A series of metal salt-modified carbon catalysts had been prepared to study the selective transformation of various carbohydrates into ethyl levulinate in an ethanol medium. The specific textural and chemical characteristics of prepared carbon samples were identified by Raman, XRD, XPS, NH;-TPD, FT-IR and nitrogen physisorption. Various parameters such as ethanol/water volume ratio, Na Cl addition, reaction temperature, and catalyst dosage played a great role in ethyl levulinate production. A desirable ethyl levulinate yield of 58.0 mol% with a highest ROF（rate of ethyl levulinate formation per gram of catalyst per hour） value of 2148.3 μmol/(g;·h) was achieved at 468 K over FeCl;modified carbon catalyst with respect to fructose conversion. The recycling experiments revealed that the sulfonated carbon catalysts exhibited relatively satisfied activity and stability.