Hydrothermal conversion of lignin to substituted phenols and aromatic ethers

被引：121

作者：

Singh, Rawel ^{[1
]}

Prakash, Aditya ^{[1
]}

Dhiman, Shashi Kumar ^{[1
]}

Balagurumurthy, Bhavya ^{[1
]}

Arora, Ajay K. ^{[2
]}

Puri, S. K. ^{[2
]}

Bhaskar, Thallada ^{[1
]}

机构：

[1] CSIR Indian Inst Petr IIP, BFD, Dehra Dun 248005, Uttar Pradesh, India

[2] Indian Oil Corp, R&D Ctr, Faridabad, Haryana, India

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 165卷

关键词：

Lignin; Bio-oil; Hydrothermal liquefaction; Thermo-chemical conversion; Substituted phenols; DEPOLYMERIZATION; CHEMICALS; CATALYSTS; BIOMASS; ETHANOL; FUELS;

D O I：

10.1016/j.biortech.2014.02.076

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Hydrothermal liquefaction of lignin was performed using methanol and ethanol at various temperatures (200, 250 and 280 degrees C) and residence times of 15, 30 and 45 min. Maximum liquid product yield (85%) was observed at 200 degrees C and 15 min residence time using methanol. Increase in temperature was seen to decrease the liquid products yield. With increase in residence time, liquid yields first increased and then decreased. FTIR and H-1 NMR showed the presence of substituted phenols and aromatic ethers in liquid products and breakage of beta-O-4 or/ and alpha-O-4 ether bonds present in lignin during hydrothermal liquefaction was confirmed through FTIR of bio-residue. In comparison to the existing literature information, higher lignin conversion to liquid products and maximum carbon conversion (72%) was achieved in this study. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：319 / 322

页数：4

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