期刊
FUEL PROCESSING TECHNOLOGY
卷 169, 期 -, 页码 244-247出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2017.10.015
关键词
Cellulose; Reducing sugars; Sulfuric acid-free preparation; Ionic liquid; Solid acid
资金
- National Natural Science Foundation of China (NSFC) [21577073]
- Natural Science Foundation of Tianjin [16JCZDJC33700, 16JCQNJC05300]
- Science and Technology Innovation Program
- Elite Youth program of Chinese Academy of Agricultural Sciences
Cellulose could be effectively hydrolyzed into reducing sugars with a novel sulfonated carbonaceous solid acid. The catalyst bearing both cellulose catalytic sites (-SO3H) and binding sites (-Cl) was synthesized by one-pot carbonization of sucralose with p-toluenesulfonic acid, bypassing the use of concentrated sulphuric acid and without any post-modification. Influences of reaction time and temperature, water content in ionic liquid, dosage of catalyst and substrate on the yield of total reducing sugars (TRS) from cellulose were investigated. A maximum TRS yield of 67.6% was obtained in the 1-butyl-3-methyl imidazolium chloride at 130 degrees C in 60 min, which was much higher than that hydrolyzed by the -Cl free solid acid (36.1%). The excellent catalytic performance of the prepared solid acid can be attributed to the synergic effect of -SO3H and -Cl groups. This work provided a green method to synthesize sulfonated carbonaceous solid acid for efficient conversion of biomass into biofuels.
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