Catalytic hydrothermal liquefaction of water hyacinth

被引：96

作者：

Singh, Rawel ^{[1
]}

Balagurumurthy, Bhavya ^{[1
]}

Prakash, Aditya ^{[1
]}

Bhaskar, Thallada ^{[1
]}

机构：

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

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 178卷

关键词：

Water hyacinth; Biomass; Aquatic biomass; Hydrothermal liquefaction; Subcritical water; EICHHORNIA-CRASSIPES; BIOMASS; PYROLYSIS; PRODUCTS; ETHANOL;

D O I：

10.1016/j.biortech.2014.08.119

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Thermal and catalytic hydrothermal liquefaction of water hyacinth was performed at temperatures from 250 to 300 degrees C under various water hyacinth: H2O ratio of 1: 3, 1: 6 and 1: 12. Reactions were also carried out under various residence times (15-60 min) as well as catalytic conditions (KOH and K2CO3). The use of alkaline catalysts significantly increased the bio-oil yield. Maximum bio-oil yield (23 wt%) comprising of bio-oil1 and bio-oil2 as well as conversion (89%) were observed with 1 N KOH solution. H-1 NMR and C-13 NMR data showed that both bio-oil1 and bio-oil2 have high aliphatic carbon content. FTIR of bio-residue indicated that the usage of alkaline catalyst resulted in bio-residue samples with lesser oxygen functionality indicating that catalyst has a marked effect on nature of the bio-residue and helps to decompose biomass to a greater extent compared to thermal case. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：157 / 165

页数：9

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