Recent progress in tar removal by char and the applications: A comprehensive analysis

[Display omitted] •Different methods for tar removal were investigated.•Char property, reaction kinetics and reaction mechanism were fully analyzed.•Typical and potential applications were summarized and displayed. Tar catalytic removal by char is a promising technology for gasification process beca...

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Bibliographic Details
Published in:Carbon resources conversion 2020, Vol.3, p.1-18
Main Authors: Zeng, Xi, Ueki, Yasuaki, Yoshiie, Ryo, Naruse, Ichiro, Wang, Fang, Han, Zhennan, Xu, Guangwen
Format: Article
Language:English
Subjects:
Catalytic removal
Char
Decoupling
Gasification
Tar
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Summary:[Display omitted] •Different methods for tar removal were investigated.•Char property, reaction kinetics and reaction mechanism were fully analyzed.•Typical and potential applications were summarized and displayed. Tar catalytic removal by char is a promising technology for gasification process because of its porous structure, good catalytic activity, low cost, and easy to treatment after deactivation. To provide comprehensive information on the tar catalytic removal by char, this study focuses on the ongoing efforts and advances from fundamental researches to the industrial applications. The tar removal efficiency by char much depends on reaction conditions and char property, such as char origin, porous structure, the functional group on char surface, carbon structure, and AAEM components. The typical reaction kinetics, reaction mechanism, and the deactivation, will be introduced. Then, for the different gasification processes, the potential or typical applications of tar removal by char are discussed and compared. Finally, a comprehensive analysis and improvement in scaling up, commercializing tar removal technologies and integrating the gasification process, are also evaluated and analyzed in this review.
ISSN:2588-9133
2588-9133
DOI:10.1016/j.crcon.2019.12.001