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Effective Gravimetric Characterization for Lignocellulosic Biomass: Comparison of NaOH-H2O2 and Ca(OH)2-H2O2 Oxidation Pretreated Sugarcane Bagasse

Ayeni, .A. O. and Adeeyo, O.A. and Ayoola, A. A. (2015) Effective Gravimetric Characterization for Lignocellulosic Biomass: Comparison of NaOH-H2O2 and Ca(OH)2-H2O2 Oxidation Pretreated Sugarcane Bagasse. International Journal of Scientific Engineering and Technology, 4 (1). pp. 5-9. ISSN 2277-1581

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Abstract

In this study, alkaline peroxide oxidation pretreatment was evaluated for sugarcane bagasse, a lignocellulosic biomass. By comparing the effects of NaOHH2O2 and Ca(OH)2 on pretreatments at specified reaction time periods (3, 6, 9, and 12 h) and reaction temperatures (60, 70, 80, and 90 h), optimum responses in term of cellulose content, hemicellulose solubilization, and lignin removal were established. Optimum pretreatment conditions of 80 oC reaction temperature, 3 h reaction time, and 30 mL/L of water hydrogen peroxide concentration (1%H2O2) solubilized 69.5%(w/w) hemicellulose for the sodium hydroxide peroxide (SHP) pretreatments, 75.8%(w/w) lignin removal was also achieved with 59.2%(w/w) cellulose retained in the solid fraction. In addition, the responses for the optimum conditions for the calcium hydroxide peroxide (CHP) pretreatments, the cellulose content, hemicellulose solubilization, and lignin removal were 50.3%, 66.6%, and 65.4%(w/w) respectively. Pretreatments showed both NaOHH2O2 and Ca(OH)2-H2O2 to be useful pretreatment agents for the disruption of the polysaccharide complex. The study also revealed that NaOH-H2O2 pretreatment stands as a better choice to Ca(OH)2-H2O2 pretreatment.

Item Type: Article
Uncontrolled Keywords: Pretreatment, sugarcane bagasse, Saccharum officinarium, gravimetry
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 10 Mar 2016 10:42
Last Modified: 10 Mar 2016 10:42
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/6441

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