Dilute mixed-acid pretreatment of sugarcane bagasse for ethanol production

被引：182

作者：

de Moraes Rocha, George Jackson ^{[1
]}

Martin, Carlos ^{[2
]}

Soares, Isaias Barbosa ^{[3
]}

Souto Maior, Ana Maria ^{[4
]}

Baudel, Henrique Macedo ^{[5
]}

Moraes de Abreu, Cesar Augusto ^{[3
]}

机构：

[1] Lab Nacl Ciencia & Tecnol Bioetanol CTBE, BR-13083970 Campinas, SP, Brazil

[2] Univ Matanzas, Dept Chem & Chem Engn, Matanzas, Cuba

[3] Univ Fed Pernambuco, Dept Chem Engn, BR-50100100 Recife, PE, Brazil

[4] Univ Fed Pernambuco, Dept Antibiot, BR-50100100 Recife, PE, Brazil

[5] Ctr Sugarcane Technol, BR-13400970 Piracicaba, SP, Brazil

来源：

BIOMASS & BIOENERGY | 2011年 / 35卷 / 01期

关键词：

Sugarcane bagasse; Pretreatment; Dilute-acid hydrolysis; Ethanol; Mixed acid; ENZYMATIC-HYDROLYSIS; KEY;

D O I：

10.1016/j.biombioe.2010.10.018

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Integral utilisation of bagasse is a high priority for the diversification of the sugarcane industry. The application of a biorefinery philosophy to bagasse utilisation requires its fractionation into its main components: cellulose, hemicelluloses and lignin. The first stage in that process is the pretreatment, in which a considerable part of hemicelluloses is solubilised, and cellulose is activated towards enzymatic hydrolysis. In this work, a pretreatment method using a mixture of sulfuric and acetic acid is investigated. Two different solid-to-liquid ratios (1.5:10 and 1:10) were used in the pretreatment. Both conditions efficiently hydrolysed the hemicelluloses giving removals above 90%. The extractive components were also effectively solubilised, and lignin was only slightly affected. Cellulose degradation was below 15%, which corresponded to the low crystallinity fraction. The analysis of the morphology of pretreated bagasse confirmed the results obtained in the chemical characterization. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：663 / 670

页数：8

共 32 条

[1]

ASTM Methods, 1966, D110656 ASTM, P396

[2] MECHANISM OF ENZYMATIC CELLULOSE DEGRADATION - ISOLATION AND SOME PROPERTIES OF A BETA-GLUCOSIDASE FROM TRICHODERMA-VIRIDE [J].

BERGHEM, LER ;

PETTERSSON, LG .

EUROPEAN JOURNAL OF BIOCHEMISTRY, 1974, 46 (02) :295-305

[3] Optimization of acid hydrolysis from the hemicellulosic fraction of Eucalyptus grandis residue using response surface methodology [J].

Canettieri, Eliana Vieira ;

de Moraes Rocha, George Jackson ;

de Carvalho, Joao Andrade, Jr. ;

de Almeida e Silva, Joao Batista .

BIORESOURCE TECHNOLOGY, 2007, 98 (02) :422-428

[4] SO2-catalyzed steam pretreatment and fermentation of enzymatically hydrolyzed sugarcane bagasse [J].

Carrasco, C. ;

Baudel, H. M. ;

Sendelius, J. ;

Modig, T. ;

Roslander, C. ;

Galbe, M. ;

Hahn-Hagerdal, B. ;

Zacchi, G. ;

Liden, G. .

ENZYME AND MICROBIAL TECHNOLOGY, 2010, 46 (02) :64-73

[5] Substrate pretreatment: The key to effective enzymatic hydrolysis of lignocellulosics? [J].

Chandra, R. P. ;

Bura, R. ;

Mabee, W. E. ;

Berlin, A. ;

Pan, X. ;

Saddler, J. N. .

BIOFUELS, 2007, 108 :67-93

[6]

CONAB (Companhia Nacional de Abastecimento), PROD CAN BRAS TER NO

[7]

Del Tio J, 2007, THESIS U SAO PAULO

[8]

Fengel D., 1989, WOOD CHEM ULTRASTRUC, p[14, 27]

[9]

Galvez LO, 2000, HDB SUGARCANE DERIVA, P3

[10] Study of the hydrolysis of sugar cane bagasse using phosphoric acid [J].

Gámez, S ;

González-Cabriales, JJ ;

Ramírez, JA ;

Garrote, G ;

Vázquez, M .

JOURNAL OF FOOD ENGINEERING, 2006, 74 (01) :78-88

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