Study on two-step hydrothermal liquefaction of macroalgae for improving bio-oil

被引：111

作者：

Wang, Shuang ^{[1
]}

Zhao, Shuang ^{[1
]}

Cheng, Xiaoxue ^{[1
]}

Qian, Lili ^{[1
]}

Barati, Bahram ^{[1
]}

Gong, Xun ^{[2
]}

Cao, Bin ^{[3
]}

Yuan, Chuan ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Hubei, Peoples R China

[3] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2021年 / 319卷

基金：

中国博士后科学基金;

关键词：

Enteromorpha clathrata; Hydrothermal liquefaction; GC-MS; DFT; Macroalgae; CO-LIQUEFACTION; SEWAGE-SLUDGE; PYROLYSIS; BIOMASS; MICROALGAE; BIOCRUDE; ETHANOL; TEMPERATURE; CONVERSION; BEHAVIORS;

D O I：

10.1016/j.biortech.2020.124176

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this work, the conversion of Enteromorpha clathrata into bio-oil through hydrothermal liquefaction (HTL) was investigated under different preparation conditions. A two-step reaction method was compared with single-step reaction. At a high temperature, bio-oil produced through the two-step hydrothermal reaction displayed slight changes in yield, but solid residue rate was low. The liquid-to-material ratio of the optimal preparation condition was 40/4 (mL/g). Bio-oil produced in each experiment at this ratio was further analyzed using GC/MS. Furthermore, density functional theory (DFT) quantitative calculation was used in analyzing and proving the possible reaction path of the conversion of furan compounds to aromatic compounds during a direct high temperature liquefaction process. Results revealed that the two-step method can ensure a high bio-oil yield, while preventing the occurrence of side reactions caused by long-term high-temperature reactions, and improve the bio-oil quality.y

引用

页数：9

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