Optimization of microwave pretreatment on wheat straw for ethanol production

Jian Xu; Hongzhang Chen; Zsófia Kádár; Anne Belinda Thomsen; Jens Ejbye Schmidt; Huadong 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, Huadong Peng

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	Danish
Journal	Biomass and 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
Externally published	Yes

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10.1016/j.biombioe.2011.04.054

Cite this

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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.",

keywords = "Bio refinery, Bioraffinaderi",

author = "Jian Xu and Hongzhang Chen and Zs{\'o}fia K{\'a}d{\'a}r and Thomsen, {Anne Belinda} and Schmidt, {Jens Ejbye} and Huadong Peng",

year = "2011",

doi = "10.1016/j.biombioe.2011.04.054",

language = "Dansk",

volume = "35",

pages = "3859--3864",

journal = "Biomass and Bioenergy",

issn = "0961-9534",

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TY - JOUR

T1 - Optimization of microwave pretreatment on wheat straw for ethanol production

AU - Xu, Jian

AU - Chen, Hongzhang

AU - Kádár, Zsófia

AU - Thomsen, Anne Belinda

AU - Schmidt, Jens Ejbye

AU - Peng, Huadong

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

U2 - 10.1016/j.biombioe.2011.04.054

DO - 10.1016/j.biombioe.2011.04.054

M3 - Tidsskriftartikel

SN - 0961-9534

VL - 35

SP - 3859

EP - 3864

JO - Biomass and Bioenergy

JF - Biomass and Bioenergy

IS - 9

ER -