Integrated process for the production of fermentable sugar and methane from rubber wood

被引：17

作者：

Charnnok, Boonya ^{[1
,2
]}

Sawangkeaw, Ruengwit ^{[3
]}

Chaiprapat, Sumate ^{[1
,4
]}

机构：

[1] Prince Songkla Univ, Interdisciplinary Grad Sch Energy Syst, Hat Yai Campus, Hat Yai 90110, Songkhla, Thailand

[2] Prince Songkla Univ, Fac Engn, Energy Technol Res Ctr, Hat Yai Campus, Hat Yai 90110, Songkhla, Thailand

[3] Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Res Unit Bioconvers Bioseparat Value Added Chem P, 254 Phayathai Rd, Bangkok, Thailand

[4] Prince Songkla Univ, Fac Engn, Dept Civil Engn, Environm Engn, Hat Yai Campus, Hat Yai 90110, Songkhla, Thailand

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 302卷

关键词：

Rubber wood waste; Organosolv pretreatment; Hydrothermal pretreatment; Fermentable sugar; Methane; ANAEROBIC-DIGESTION; SP NOV; ENZYMATIC SACCHARIFICATION; HYDROTHERMAL PRETREATMENT; LIGNOCELLULOSIC MATERIALS; LIGNIN; BIOMASS; BIOGAS; WATER; FRACTIONATION;

D O I：

10.1016/j.biortech.2020.122785

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Pretreatment is required for the enhancement of the bioconversion of lignocellulosic biomass. This study aimed to develop an integrated process producing efficient biochemical conversion of rubber wood waste (RW) into co-biofuels, fermentable sugar and methane. The glucan conversion was enhanced to 93.8% with temperature (210 degrees C) and delignification by organosolv pretreatment (OS). Thereafter, anaerobic digestion of the residue left after enzymatic hydrolysis was conducted which further improved the methane yield (205.5 LCH4/kg VS) by 33% over hydrothermal pretreatment (154.3 LCH4/kg VS). Delignification during OS plays a key role in improving the degradability of RW resulting in efficient energy recovery (11.23 MJ/kg pretreated RW) which was clearly higher than an integrated process based on hydrothermal (HT) or HT plus process water. Scaled up to a biorefinery, the integrated process based on OS would economically produce fermentable sugar while other value-added chemicals might be produced from the process water.

引用

页数：9

共 45 条

[21] Corn stover for biogas production: Effect of steam explosion pretreatment on the gas yields and on the biodegradation kinetics of the primary structural compounds [J].