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
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Cellobiose hydrolysis using acid-functionalized nanoparticles
Leidy Peña,Myles Ikenberry,Brenton R. Ware,Keith L. Hohn,D. Boyle,Xiuzhi Susan Sun,Donghai Wang +6 more
TL;DR: In this article, three acid-functionalized nanoparticles were synthesized for pretreatment and hydrolysis of lignocellulosic biomass, and they were functionalized with perfluoroalkylsulfonic acid (PFS), alkylsulfonic acids (AS), and butylcarboxylic acid (BCOOH) groups.
Journal ArticleDOI
Highly efficient synthesis of 5-hydroxymethylfurfural with carbohydrates over renewable cyclopentanone-based acidic resin
Hao Tang,Hao Tang,Ning Li,Fang Chen,Fang Chen,Guangyi Li,Aiqin Wang,Yu Cong,Xiaodong Wang,Tao Zhang +9 more
TL;DR: In this article, a renewable acidic resin which was prepared by one-step condensation/sulfation of sodium sulfite, cyclopentanone and formaldehyde followed by ion-exchanging was found to be a highly active and stable catalyst for the production of 5-hydroxymethylfurfural (HMF) by the dehydration of fructose and inulin.
Journal ArticleDOI
Preparation and performance evaluation of a lignin-based solid acid from acid hydrolysis lignin
TL;DR: In this article, a new lignin-based solid acid was prepared by sulfonation of sulfuric acid Lignin (a typical acid hydrolysis lignins).
Journal ArticleDOI
Production of Levulinic Acid from Cellulose Catalyzed by Environmental-Friendly Catalyst
Pan Wang,Si Hui Zhan,Hongbing Yu +2 more
TL;DR: In this paper, an environmentally friendly solid acid catalyst, sulfated TiO2 was prepared by precipitation-impregnation method and used to catalyze the production of levulinic acid from cellulose.
Journal ArticleDOI
Conversion of cellulose to 2,5-hexanedione using tungstated zirconia in hydrogen atmosphere
Flora Chambon,Franck Rataboul,Catherine Pinel,Amandine Cabiac,Emmanuelle Guillon,Nadine Essayem +5 more
TL;DR: In this article, the authors showed that 2,5 Hexanedione is produced from cellulose using ZrW in the presence of hydrogen while lactic acid is the main product in helium atmosphere.
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
Arthur J. Ragauskas,Charlotte K. Williams,Brian H. Davison,George J. P. Britovsek,John Cairney,Charles A. Eckert,William J. Frederick,Jason P. Hallett,David J. Leak,Charles L. Liotta,Jonathan R. Mielenz,Richard J. Murphy,Richard H. Templer,Timothy J. Tschaplinski +13 more
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Journal ArticleDOI
Toward an aggregated understanding of enzymatic hydrolysis of cellulose: noncomplexed cellulase systems.
TL;DR: It is suggested that it is timely to revisit and reinvigorate functional modeling of cellulose hydrolysis and that this would be highly beneficial if not necessary in order to bring to bear the large volume of information available on cellulase components on the primary applications that motivate interest in the subject.
Journal ArticleDOI
Bio-ethanol--the fuel of tomorrow from the residues of today.
TL;DR: This review gives an overview of the new technologies required and the advances achieved in recent years to bring lignocellulosic ethanol towards industrial production.