Improved production of levoglucosan and levoglucosenone from acid-impregnated cellulose via fast pyrolysis

被引：15
|
作者：
Xu, Feixiang [1 ]
Luo, Jiangchen [1 ]
Jiang, Liqun [1 ,2 ,3 ]
Zhao, Zengli [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China
[2] Guangdong Acad Sci, Inst Biol & Med Engn, Guangzhou 510316, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
CELLULOSE | 2022年 / 29卷 / 03期
关键词：
Cellulose; Catalytic pyrolysis; Levoglucosan; Levoglucosenone; CATALYTIC FAST PYROLYSIS; CO-PYROLYSIS; BIOMASS; DEHYDRATION; KINETICS;
D O I：
10.1007/s10570-021-04387-4
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
In this research, the production of levoglucosan (LG) and levoglucosenone (LGO) was improved from acid-impregnated cellulose via fast pyrolysis. Thermogravimetric and kinetic analysis disclosed the production formation mechanism. The impregnation of acid could reduce the activation energy and lower the reaction temperature. Furthermore, the yield of LG from H3PO4- and H2SO4-impregnated cellulose increased significantly (26.4-35.8 wt%) compared with that of pure cellulose (7.5 wt%) pyrolysis at 300 degrees C. At 350 degrees C, 0.1 wt% H3PO4-impregnated cellulose gave a maximum LGO yield (18.3 wt%) via pyrolysis, which increased 36 times concerning that of cellulose without acid impregnation (0.5 wt%). This study exhibited great potential for industrial LG and LGO production from cellulose at low temperatures.
引用
收藏
页码：1463 / 1472
页数：10
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