Effect of Hydrothermal Explosion Pretreatment on the Composition and Structure of Calliandra Calothyrsus Shrub – a Lignocellulosic Biomass
International Journal of Sustainable and Green Energy
Volume 3, Issue 1, January 2014, Pages: 1-5
Received: Oct. 23, 2013; Published: Dec. 20, 2013
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Authors
Shivanand Yallappa Adaganti, Chemical Engineering Department, SDM College of Engineering and Technology, Dharwad, Karnataka, India
Basavaraj Mahipat Kulkarni, Chemical Engineering Department, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
Gururaj Pandurang Desai, Chemical Engineering Department, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
Shivappa Shanmukhappa, Chemical Engineering Department, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
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Abstract
Biomass has been pretreated by hydrothermal explosion using different experimental conditions of temperature between 135 and 173°C and operating time of 45 minutes. The effects of hydrothermal explosion conditions have been investigated by measuring chemical compositions (cellulose, hemicelluloses and lignin) in Calliandra calothyrsus. Hydrothermal explosion pretreatment removes the major part of the hemicelluloses, and makes the high cellulose in the solid material for further enzyme hydrolysis. At severity factor of (log Ro) 3.82 (173oC, 7.5 bar, 45 min), the biomass fibers contained the significant lowest hemicelluloses and the highest of celluloses at 4.82 % DW and 58.26 % DW, respectively. Since Calliandra calothyrsus has higher lignin content, lignin structure might be resisting hemicelluloses degradation by hydrothermal explosion pretreatment. Therefore, hydrothermal explosion of lignocellulosic materials to remove hemicelluloses might significantly enhance the efficiency of cellulose hydrolysis.
Keywords
Calliandra Calothyrsus, Hydrothermal Explosion, Chemical Compositions
To cite this article
Shivanand Yallappa Adaganti, Basavaraj Mahipat Kulkarni, Gururaj Pandurang Desai, Shivappa Shanmukhappa, Effect of Hydrothermal Explosion Pretreatment on the Composition and Structure of Calliandra Calothyrsus Shrub – a Lignocellulosic Biomass, International Journal of Sustainable and Green Energy. Vol. 3, No. 1, 2014, pp. 1-5. doi: 10.11648/j.ijrse.20140301.11
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