Bioconversion of different sizes of microcrystalline cellulose pretreated by microwave irradiation with/without NaOH

Huadong Peng, Hongzhang Chen, Yongshui Qu, Hongqiang Li and Jian Xu

Applied Energy, 2014, vol. 117, issue C, 142-148

Abstract: The process of microwave irradiation (MWI) pretreatment on microcrystalline cellulose (MCC) with different sizes with/without NaOH was investigated on the variation of the ratio of degradated solid residue (RDS), particle size, crystallinity index (CrI), crystallite size (Sc) and specific surface area (SSA). High concentration of alkali or high temperature was necessary in dissolving or decomposing the cellulose. Appropriate pretreatment severity eliminated the effects of structural diversities in feedstocks, which led to convergence in the ethanol fermentation. After the reaction proceeded to 120h, the samples could be converted to glucose completely and the highest ethanol yield of the theoretical was 58.91% for all the samples pretreated by the combined treatment of MWI and NaOH. In addition, the statistical analysis implied that when reaction time got to 24h, particle size and pretreatment condition affected much more significant than other factors.

Keywords: Microwave irradiation; Microcrystalline cellulose; Particle size; Crystalline index; Biomass bioconversion (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (7)

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DOI: 10.1016/j.apenergy.2013.12.002

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