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Received June 11, 2007
Accepted July 3, 2007
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Kinetic studies of hemicellulose hydrolysis of corn stover at atmospheric pressure
School of Chemical Engineering and Technology, Korea 1School of Environment Science and Technology, Tianjin University, Tianjin 300072, China 2Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, Nagano 386-8567, Japan
Korean Journal of Chemical Engineering, March 2008, 25(2), 302-307(6), 10.1007/s11814-008-0053-y
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Abstract
The object of this work was to study the xylose production by hydrolysis of corn stover with diluted sulfuric acid at 100 ℃. Several concentrations of H2SO4 (2%, 4% and 6% w/w) and reaction time (0-300 min) were evaluated. Kinetic parameters of mathematical models for predicting the concentrations of xylose, glucose and furfural in the hydrolysates were found. Optimal conditions for hydrolysis were 5.5% H2SO4 at 100 ℃ for 60 min; under these conditions, 86.7% of xylose yield and 2.82 g/g selectivity were attained, leading to liquors containing up to 18.73 g/l xylose, 6.64 g/l glucose and 0.63 g/l furfural. The models could be successfully used to predict the concentrations of xylose, glucose and furfural within 0-300 min under experimental acid concentrations. Furthermore, the hydrolysis process of corn stover using dilute acid could be conceived as the first stage of an integrated strategy for corn stover utilization.
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References
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Lee YY, Zhu YM, Elander RT, Appl. Biochem. Biotechnol., 124, 1045 (2005)
Choi JH, Kim SB, Korean J. Chem. Eng., 11(3), 178 (1994)
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Ohgren K, Bengtsson O, Gorwa-Grauslund MF, Galbe M, Hahn-Hagerdal B, Zacchi G, J. Biotechnol., 126, 488 (2006)
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Oh KK, Kim YS, Yoon HH, Tae BS, J. Ind. Eng. Chem., 8(1), 64 (2002)
Rodriguez-Chong A, Ramirez JA, Garrote G, J. Food Eng., 61, 143 (2004)
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Carvalho W, Batista MA, Canilha L, Santos JC, Converti A, Silva SS, J. Chem. Technol. Biotechnol., 79(11), 1308 (2004)
Roberto IC, Mussatto SI, Rodrigues RCLB, Ind. Crop. Prod., 17, 171 (2003)
Liu D, Liu D, Zeng RJ, Angelidaki I, Water Res., 40, 2230 (2006)
Sun Y, Cheng JJ, Bioresour. Technol., 96(14), 1599 (2005)
Tellez-luis SJ, Ramirez JA, Vazquez M, J. Sci. Food Agric., 82, 505 (2002)
Mosier NS, Ladisch CM, Ladisch MR, Biotechnol. Bioeng., 79(6), 610 (2002)
Tellez-Luis SJ, Ramirez JA, Vazquez M, J. Food Eng., 52, 285 (2002)
Sluiter A, Determination of structural carbohydrates and lignin in biomass, National Renewable Energy Laboratory (NREL), Golden, CO (2005)
Garrote G, Dominguez H, Parajo JC, Process Biochem., 36(6), 571 (2001)
Maloney MT, Chapman TW, Baker AJ, Biotechnol. Bioeng., 27, 355 (1985)
Rahman SHA, Choudhury JP, Ahmad AL, Biochem. Eng. J., 30, 97 (2006)
Larsson S, Palmqvist E, Hahn-Hagerdal B, Tengborg C, Stenberg K, Zacchi G, Nilvebrant NO, Enzyme Microb. Technol., 24(3-4), 151 (1999)
Gamez S, Gonzalez-Cabriales JJ, Ramirez JA, Carrote G, Vazquez M, J. Food Eng., 74, 78 (2006)
Aguilar R, Ramirez JA, Carrote G, Vazquez M, J. Food Eng., 55, 309 (2002)
Bhandari N, Macdonald DG, Bakhshi NN, Biotechnol. Bioeng., 26, 320 (1984)
Lloyd TA, Wyman CE, Bioresour. Technol., 96(18), 1967 (2005)
Herrerat A, Tellez-Luis SJ, Ramirez JA, Vazquez M, J. Cereal Sci., 37, 267 (2003)
Walther T, Hensirisak P, Agblevor FA, Bioresour. Technol., 76(3), 213 (2001)
Lawford HG, Rousseau JD, Appl. Biochem. Biotechnol., 70-72, 161 (1998)
Maiorella B, Blanch HW, Wilke CR, Biotech. Bioeng., 125, 103 (1983)
Van Zyl C, Prior BA, Du Preez JC, Enzyme Microb. Technol., 13, 82 (1991)
