Optimization of microwave pretreatment on wheat straw for ethanol production

Jian Xu; Hongzhang Chen; Zsófia Kádár; Anne Belinda Thomsen; Jens Ejbye Schmidt; H. Peng

doi:10.1016/j.biombioe.2011.04.054

Optimization of microwave pretreatment on wheat straw for ethanol production

Jian Xu, Hongzhang Chen, Zsófia Kádár, Anne Belinda Thomsen, Jens Ejbye Schmidt, H. Peng

Chinese Academy of Sciences

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

An orthogonal design (L9(34)) was used to optimize the microwave pretreatment on wheat straw for ethanol production. The orthogonal analysis was done based on the results obtained from the nine pretreatments. The effect of four factors including the ratio of biomass to NaOH solution, pretreatment time, microwave power, and the concentration of NaOH solution with three different levels on the chemical composition, cellulose/hemicellulose recoveries and ethanol concentration was investigated. According to the orthogonal analysis, pretreatment with the ratio of biomass to liquid at 80 g kg−1, the NaOH concentration of 10 kg m−3, the microwave power of 1000 W for 15 min was confirmed to be the optimal condition. The ethanol yield was 148.93 g kg−1 wheat straw at this condition, much higher than that from the untreated material which was only 26.78 g kg−1.

Original language	English
Journal	Biomass & Bioenergy
Volume	35
Issue number	9
Pages (from-to)	3859-3864
ISSN	0961-9534
DOIs	https://doi.org/10.1016/j.biombioe.2011.04.054
Publication status	Published - 2011

Keywords

Bio refinery

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title = "Optimization of microwave pretreatment on wheat straw for ethanol production",

abstract = "An orthogonal design (L9(34)) was used to optimize the microwave pretreatment on wheat straw for ethanol production. The orthogonal analysis was done based on the results obtained from the nine pretreatments. The effect of four factors including the ratio of biomass to NaOH solution, pretreatment time, microwave power, and the concentration of NaOH solution with three different levels on the chemical composition, cellulose/hemicellulose recoveries and ethanol concentration was investigated. According to the orthogonal analysis, pretreatment with the ratio of biomass to liquid at 80 g kg−1, the NaOH concentration of 10 kg m−3, the microwave power of 1000 W for 15 min was confirmed to be the optimal condition. The ethanol yield was 148.93 g kg−1 wheat straw at this condition, much higher than that from the untreated material which was only 26.78 g kg−1.",

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AU - Xu, Jian

AU - Chen, Hongzhang

AU - Kádár, Zsófia

AU - Thomsen, Anne Belinda

AU - Schmidt, Jens Ejbye

AU - Peng, H.

PY - 2011

Y1 - 2011

N2 - An orthogonal design (L9(34)) was used to optimize the microwave pretreatment on wheat straw for ethanol production. The orthogonal analysis was done based on the results obtained from the nine pretreatments. The effect of four factors including the ratio of biomass to NaOH solution, pretreatment time, microwave power, and the concentration of NaOH solution with three different levels on the chemical composition, cellulose/hemicellulose recoveries and ethanol concentration was investigated. According to the orthogonal analysis, pretreatment with the ratio of biomass to liquid at 80 g kg−1, the NaOH concentration of 10 kg m−3, the microwave power of 1000 W for 15 min was confirmed to be the optimal condition. The ethanol yield was 148.93 g kg−1 wheat straw at this condition, much higher than that from the untreated material which was only 26.78 g kg−1.

AB - An orthogonal design (L9(34)) was used to optimize the microwave pretreatment on wheat straw for ethanol production. The orthogonal analysis was done based on the results obtained from the nine pretreatments. The effect of four factors including the ratio of biomass to NaOH solution, pretreatment time, microwave power, and the concentration of NaOH solution with three different levels on the chemical composition, cellulose/hemicellulose recoveries and ethanol concentration was investigated. According to the orthogonal analysis, pretreatment with the ratio of biomass to liquid at 80 g kg−1, the NaOH concentration of 10 kg m−3, the microwave power of 1000 W for 15 min was confirmed to be the optimal condition. The ethanol yield was 148.93 g kg−1 wheat straw at this condition, much higher than that from the untreated material which was only 26.78 g kg−1.

KW - Bio refinery

KW - Bioraffinaderi

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DO - 10.1016/j.biombioe.2011.04.054

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JO - Biomass & Bioenergy

JF - Biomass & Bioenergy

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Optimization of microwave pretreatment on wheat straw for ethanol production

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