Pore structure is one of the most important factors that dominate the reactivity of post-combustion of coal-chars derived from partial gasification process of atmospheric and pressurized spouted fluidized bed gasifiers. The influential factors on pore structure of coal-chars were analyzed in terms of the coal size feed, operational conditions, coal-char size and its components. It concluded that pyrolysis and devolatilization play a leading role in forming the pore structure of coal-chars in the partial gasification process. It is the reaction of coal-char with CO2 and H2O (steam) that plays a dominant positive impact on promoting enlargement and development of the coal-char pores at the elevated pressure gasification. There may exist an optimal coal-char size range that possesses abundant porosity and bigger pore specific surface area, which contributes to enhancing the gasification reactions in the atmospheric gasifier.
- Advanced Energy Systems
Pore Structure of Coal-Chars Derived From Atmospheric and Pressurized Spouted Fluidized Bed Gasifiers
Duan, Y, Zhou, Y, Chen, X, Zhao, C, & Wu, X. "Pore Structure of Coal-Chars Derived From Atmospheric and Pressurized Spouted Fluidized Bed Gasifiers." Proceedings of the 18th International Conference on Fluidized Bed Combustion. 18th International Conference on Fluidized Bed Combustion. Toronto, Ontario, Canada. May 22–25, 2005. pp. 243-250. ASME. https://doi.org/10.1115/FBC2005-78036
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