An application of low concentration alkaline hydrogen peroxide at non-severe pretreatment conditions together with deep eutectic solvent to improve delignification of oil palm fronds

被引：39

作者：

Ho, Mun Chun ^{[1
]}

Wu, Ta Yeong ^{[1
,2
]}

Chee, Samuel Wei Qiang ^{[1
]}

Ngang, Chia Yee ^{[1
]}

Chew, Irene Mei Leng ^{[1
]}

Teoh, Wen Hui ^{[3
]}

Jahim, Jamaliah Md. ^{[4
]}

Mohammad, Abdul Wahab ^{[4
]}

机构：

[1] Monash Univ, Sch Engn, Chem Engn Discipline, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul, Malaysia

[2] Monash Univ, Sch Engn, Monash Ind Palm Oil Educ & Res Platform MIPO, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul, Malaysia

[3] Univ Malaya, Fac Engn, Dept Chem Engn, Kuala Lumpur 50603, Malaysia

[4] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Ukm Bangi 43600, Selangor Darul, Malaysia

来源：

CELLULOSE | 2019年 / 26卷 / 16期

关键词：

Biomass valorization; Biorefinery; Green solvent; Lignocellulosic biomass; Waste management; INORGANIC SALT PRETREATMENT; LIGNOCELLULOSIC BIOMASS; ENZYMATIC-HYDROLYSIS; POTENTIAL USE; STRUCTURAL-CHARACTERIZATION; ETHANOL-PRODUCTION; CHOLINE CHLORIDE; LIGNIN; OPTIMIZATION; OXIDATION;

D O I：

10.1007/s10570-019-02646-z

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Cost-effective pretreatments are essential to overcome the recalcitrant properties of lignocellulosic biomass in order to reutilize cellulosic components within the biomass for value-added products. In this study, a sequential pretreatment of low concentration (< 1.00 vol%) alkaline hydrogen peroxide (AHP) at ambient temperature (similar to 25 degrees C) and pressure (1 atm.) with Type III deep eutectic solvent (DES) was used to fractionate oil palm fronds (OPF). A combination of AHP (0.25 vol%, 90 min) and DES (120 degrees C, 4 h) at the later stage resulted in a pretreated OPF with a delignification of 18.99%, remarkably improved DES-alone delignification extent by 1.6 folds. The characterizations of pretreated OPF confirmed that mild conditions AHP + DES pretreatment could synergically improve the delignification efficiency. Thus, the use of this sequential pretreatment enabled the lignin extraction and effectively disrupted the recalcitrant structure of OPF, yielding a potential feedstock for a biorefinery process at the later stage.

引用

页码：8557 / 8573

页数：17

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