Biocrude Upgrading in Different Solvents after Microalgae Hydrothermal Liquefaction

被引：18
作者：
Xu, Donghai [1 ]
Wei, Ning [1 ]
Liang, Yu [1 ]
Wang, Han [1 ]
Liu, Liang [1 ]
Wang, Shuzhong [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Key Lab Thermofluid Sci & Engn, Minist Educ, Xian 710049, Shaanxi, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2021年 / 60卷 / 21期
基金：
中国国家自然科学基金;
关键词：
BIO-OIL; DUNALIELLA-TERTIOLECTA; CO-LIQUEFACTION; SEWAGE-SLUDGE; CATALYST; ETHANOL; GASIFICATION;
D O I：
10.1021/acs.iecr.1c00145
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Hydrothermal liquefaction of the third-generation biomass represented by microalgae can produce biocrude. However, the directly obtained biocrude has a high heteroatom content and a low higher heating value (HHV), which cannot meet the standards of biofuel. In this work, water-insoluble biocrude which was directly gained from microalgae hydrothermal liquefaction (HTL) was upgraded under four kinds of solvents (i.e., methanol, ethanol, acetone, and H2O) and one type of catalyst (H2O + Ru/C) at 240-400 degrees C for 1 h. The results show that the HHV and C and H contents of upgraded bio-oil increased and the O/C ratio decreased significantly after solvent upgrading. The highest upgraded bio-oil yield appeared in the case of ethanol upgrading and reached the maximum value of 82.8 wt % at 360 degrees C. The upgraded bio-oil yield of acetone upgrading increased from 45.8 to 68.2 wt % as the temperature increased within 240-400 degrees C. Also, esterification reactions between alcohol and acid in the supercritical system remarkably reduced the content of carboxyl-containing organic matter.
引用
收藏
页码：7966 / 7974
页数：9
相关论文
共 36 条
[31]   Pd nanochains: Controlled synthesis by lysine and application in microbial fuel cells [J].
Yang, Gaixiu ;
Wang, Yufei ;
Xu, Libang ;
Li, Ying ;
Li, Lianhua ;
Sun, Yongming ;
Yuan, Zhenhong ;
Tang, Yawen .
CHEMICAL ENGINEERING JOURNAL, 2020, 379
[32]  
Yang Y, 2019, GREEN CHEM, V21, P1247, DOI [10.1039/C8GC03645D, 10.1039/c8gc03645d]
[33]   Effect of Alcohols on Simultaneous Bio-oil Upgrading and Separation of High Value-added Chemicals [J].
Ye, Jun ;
Jiang, Jianchun ;
Xu, Junming .
WASTE AND BIOMASS VALORIZATION, 2018, 9 (10) :1779-1785
[34]   Bio-crude production from secondary pulp/paper-mill sludge and waste newspaper via co-liquefaction in hot-compressed water [J].
Zhang, Linghong ;
Champagne, Pascale ;
Xu, Chunbao .
ENERGY, 2011, 36 (04) :2142-2150
[35]   Cornstalk liquefaction in methanol/water mixed solvents [J].
Zhu, Wei-Wei ;
Zong, Zhi-Min ;
Yan, Hong-Lei ;
Zhao, Yun-Peng ;
Lu, Yao ;
Wei, Xian-Yong ;
Zhang, Dongke .
FUEL PROCESSING TECHNOLOGY, 2014, 117 :1-7
[36]   Thermochemical Catalytic Liquefaction of the Marine Microalgae Dunaliella tertiolecta and Characterization of Bio-oils [J].
Zou, Shuping ;
Wu, Yulong ;
Yang, Mingde ;
Li, Chun ;
Tong, Junmao .
ENERGY & FUELS, 2009, 23 (07) :3753-3758
1234