The Effect of Detoxification of Lignocellulosic Biomass for Enhanced Methane Production

被引：4

作者：

Kotarska, Katarzyna ^{[1
]}

Dziemianowicz, Wojciech ^{[1
]}

Awierczynska, Anna ^{[1
]}

机构：

[1] Prof Waclaw Dabrowski Inst Agr & Food Biotechnol, State Res Inst, Rakowiecka 36, PL-02532 Warsaw, Poland

来源：

ENERGIES | 2021年 / 14卷 / 18期

关键词：

lignocellulosic biomass; biofuels; enzymatic hydrolysis; simultaneous fermentation; ANAEROBIC CO-DIGESTION; BIOGAS PRODUCTION; PRETREATMENT; ETHANOL; FERMENTATION; STRAW; ACID; DEGRADATION; CHALLENGES; INHIBITORS;

D O I：

10.3390/en14185650

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The aim of this research is to examine the effect of lignocellulosic biomass detoxification on the efficiency of the methane fermentation process. Both for corn straw and rye straw, the methane yield was expressed per volume of fermentation medium and per mass of volatile solids (VS) added. Lignocellulosic biomass was subjected of thermo-chemical and enzymatic sequential pretreatments. It was found that methane yield was higher by 22% when using the detoxification process. In these variants, CH4 yield was 18.86 L/L for corn straw and 17.69 L/L for rye straw; while methane yield expressed per mass of VS added was 0.31 m(3)/kg VS for corn straw and 0.29 m(3)/kg VS for rye straw. The inclusion of a detoxification step in pretreatments of biomass lignocellulosic increases the degree of organic substance decomposition and enhances methane yield. The results show that a two-step pretreatment, alkaline/enzymatic with a detoxification process, is necessary for the effective generation of high methane concentration biogas.

引用

页数：14

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