Soot formation during biomass gasification: A critical review

被引：107
作者：
He, Qing [1 ]
Guo, Qinghua [1 ]
Umeki, Kentaro [2 ]
Ding, Lu [1 ,3 ]
Wang, Fuchen [1 ]
Yu, Guangsuo [1 ,4 ]
机构：
[1] East China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China
[2] Lulea Univ Technol, Div Energy Sci, S-97187 Lulea, Sweden
[3] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China
[4] Ningxia Univ, State Key Lab High Efficiency Coal Utilizat & Gre, Yinchuan 750021, Ningxia, Peoples R China
来源：
RENEWABLE & SUSTAINABLE ENERGY REVIEWS | 2021年 / 139卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Biomass soot; Gasification; Partial oxidation; Entrained flow; Reaction mechanism;
D O I：
10.1016/j.rser.2021.110710
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Biomass gasification is a promising technology in current and future low carbon energy systems. Soot formation is a great technical challenge for the industrialization of biomass gasification that is inevitable at high temperature and fuel rich conditions. In this review, a comprehensive summary of soot formation in biomass gasification is provided with special focus on entrained flow technologies. The topics covered the state of the art knowledge of soot formation in different gasifiers, the fundamental knowledge, experimental methods and recent control strategies. Soot generation and oxidation mechanism are discussed while the relationship between soot, tar and char in biomass gasification are analyzed in detail. Reaction models for soot formation coupled to the gasification process are introduced, including (semi-)empirical and detailed models. Effect of biomass components and ash forming elements on soot formation are highlighted. This is followed by a detailed description of in-situ and ex-situ experimental measurements, such as the optical diagnostics, aerosol particle mass analyzer and mass spectrometer. Soot formation characteristics and properties in different types of gasifiers are then addressed in detail with an emphasis of entrained flow gasifiers. Finally, the soot control strategies in biomass gasification are reviewed and evaluated. This review concludes by summarizing the available knowledge and challenges in soot formation during biomass gasification.
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页数：21
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