碳基固体酸催化纤维素热解制备左旋葡聚糖和左旋葡萄糖酮  

Carbon-based solid acid catalyzed the pyrolysis of cellulose to produce levoglucosan and levoglucosenone

作　　者：徐飞翔 蒋丽群[1,3] 郑安庆 赵增立[1] XU Feixiang;JIANG Liqun;ZHENG Anqing;ZHAO Zengli(Chinese Academy of Sciences Key Laboratory of Renewable Energy,Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China;University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Biological and Medical Engineering,Guangdong Academy of Sciences,Guangzhou 510316,Guangdong,China)

机构地区：[1]中国科学院可再生能源重点实验室,广东省新能源和可再生能源研究开发与应用重点实验室,中国科学院广州能源研究所,广东广州510640 [2]中国科学院大学,北京100049 [3]广东省科学院生物与医学工程研究所,广东广州510316

出　　处：《化工学报》2022年第3期1166-1172,共7页CIESC Journal

基　　金：广东省基础与应用基础研究基金项目(2021A1515012063);广东省科学院打造产业技术创新中心行动专项资金(2022GDASZH-2022010110);广东省科学院2020年度建设国内一流研究机构专项资金项目(GDASYL-20200102010,GDASYL-20200102009);中国科学院青年创新促进会人才项目(2021350)。

摘　　要：将纤维素快速热解转化为高价值的左旋葡聚糖和左旋葡萄糖酮是国内外研究热点之一。通过制备及表征碳基固体酸,并优化纤维素催化热解的实验条件,在350℃下,Fe_(3)O_(4)/C_(700)-H_(3)PO_(4)与纤维素以1∶3的比例混合,可以显著提高热解过程中左旋葡聚糖[40.7%(质量)]和左旋葡萄糖酮[13.5%(质量)]的产率,分别比纯纤维素热解提高了2倍和22倍。该研究对纤维素的定向高值化转化具有指导意义。The fast pyrolysis of cellulose into high-value levoglucosan and levoglucosenone is one of the research hotspots at home and abroad.In this paper,carbon-based solid acids catalysts were prepared and characterized,and the experimental conditions of cellulose catalytic pyrolysis were optimized.At 350℃,Fe_(3)O_(4)/C_(700)-H_(3)PO_(4) mixed with cellulose at a ratio of 1∶3 could significantly increase the yield of levoglucosan[40.7%(mass)]and levoglucosenone[13.5%(mass)],which were 2 times and 22 times higher than that of non-catalytic cellulose pyrolysis,respectively.This study was a guide for the directional value-added utilization of cellulose.

关 键 词：热解 生物质 催化剂 固体酸 左旋葡聚糖 左旋葡萄糖酮 

分 类 号：TQ317[化学工程—高聚物工业]