Transformation of char structure and alkali and alkali earth metallic species during pyrolysis and gasification
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This study focused on the formation and transformation of nascent char structure during the pyrolysis in He and the gasification in CO2/O2 of biomass and low-rank coal. The effects of nascent char structure and the concentration of AAEM species on nascent char reactivity were investigated. The results will be useful for the development of low-emission gasification-based technologies for the utilisation of biomass and low-rank coal.
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Wen, C.; Xu, M.; Yu, D.; Sheng, C.; Wu, Hongwei; Zhang, P.; Qiao, Y.; Yao, H. (2013)The formation of PM10 (particles less than or equal to 10 µm in aerodynamic diameter) during char combustion in both air-firing and oxy-firing was investigated. Three Chinese coals of different ranks (i.e., DT bituminous ...
Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part IX. Effects of volatile-char interactions on char–H2O and char–O2 reactivitiesZhang, Shu; Hayashi, J.; Li, Chun-Zhu (2011)Volatile-char interactions are an important consideration in the design and operation of a gasifier. This study aims to investigate the effects of volatile-char interactions on the in situ char–steam reactivity at 800 °C ...
Volatile-char interactions: Roles of in situ volatiles with distinctly-different chemistry in determining char structure and reactivityChen, X.; Wu, Hongwei (2018)© 2018 The Combustion Institute. This study reports the roles of volatiles with distinctly-different chemistry in determining char reactivity and char structure during in situ volatile-char interactions under non-catalytic ...