Journal ArticleDOI
Hydrolysis of Cellulose by Amorphous Carbon Bearing SO3H, COOH, and OH Groups
Satoshi Suganuma,Kiyotaka Nakajima,Masaaki Kitano,Daizo Yamaguchi,Hideki Kato,Shigenobu Hayashi,Michikazu Hara +6 more
TLDR
The carbon catalyst can be readily separated from the saccharide solution after reaction for reuse in the reaction without loss of activity, and the catalytic performance of the carbon catalyst is attributed to the ability of the material to adsorb beta-1,4 glucan, which does not adsorb to other solid acids.Abstract:
The hydrolysis of cellulose into saccharides using a range of solid catalysts is investigated for potential application in the environmentally benign saccharification of cellulose. Crystalline pure cellulose is not hydrolyzed by conventional strong solid Bronsted acid catalysts such as niobic acid, H-mordenite, Nafion and Amberlyst-15, whereas amorphous carbon bearing SO 3H, COOH, and OH function as an efficient catalyst for the reaction. The apparent activation energy for the hydrolysis of cellulose into glucose using the carbon catalyst is estimated to be 110 kJ mol (-1), smaller than that for sulfuric acid under optimal conditions (170 kJ mol (-1)). The carbon catalyst can be readily separated from the saccharide solution after reaction for reuse in the reaction without loss of activity. The catalytic performance of the carbon catalyst is attributed to the ability of the material to adsorb beta-1,4 glucan, which does not adsorb to other solid acids.read more
Citations
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Patent
Manufacturing method of sugar solution and manufacturing method of biomass derivative
TL;DR: In this paper, the authors proposed a manufacturing method of a sugar solution capable of hydrolyzing a biomass including cellulose with a low environmental load at low cost; and a manufacturing of a biomass derivative.
Book ChapterDOI
Optimization of Energy-Proficient Infrared Radiated Rapid Hydrolysis of Pineapple Skin to Reducing Sugar
TL;DR: In this paper, the effects of the application of infrared radiation on the intensification of hydrolysis of waste pineapple skin (WPS) have been evaluated and the Taguchi orthogonal design determined optimal values of process factors, viz., 70 °C reactor temperature, 30 min batch time, water to WPS ratio (w/w) of 35, and 2 wt% catalyst concentration.
Esterification of lauric and oleic acids with methanol over oxidized and sulfonated activated carbon catalyst
Chenwei WangXia,GuiZhi Yun +1 more
TL;DR: In this paper, a new activated carbon catalyst with relatively high density of -SO3H group was synthesized by HNO3 oxidation followed by sulfonation with H2SO4.
Journal ArticleDOI
Bioprocess development for levulinic acid production using sugarcane biomass
TL;DR: In this article , the authors used a mixture of bagasse and sugarcane straw to convert lignocellulosic biomass into cellulose pulp and a sulfonated carbonaceous solid catalyst synthesized from lignin fraction was used to convert cellulose to levulinic acid.
Journal ArticleDOI
Triple action of sulfuric acid on the preparation of the carbon-based solid acid from waste toner and its application
Yaru Fan,Xin Wang,Xingting Guo,Huajie Pan,Yuanquan Xing,Ya-Jie He,Ya-Ru Yuan,Lili Zhang,Yuyan Song,Yongmei Liu,Shuguang Shen +10 more
TL;DR: In this paper , a carbon-based waste toner with high carbon content has the potential to become a carbon material, but its utilization is limited due to the low carbonization yield.
References
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Andrea C. Ferrari,John Robertson +1 more
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Journal ArticleDOI
The path forward for biofuels and biomaterials
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Journal ArticleDOI
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Journal ArticleDOI
Bio-ethanol--the fuel of tomorrow from the residues of today.
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