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Some new insights into the synergy occurring during char gasification in CO2/H2O mixtures by Liu, Rui; Zhang, Yan; Ling, Zheng; Song, Yongchen is a Engineering article available to read on EtoBox.

What is Some new insights into the synergy occurring during char gasification in CO2/H2O mixtures about?

This study aimed to investigate the mutual effects of CO 2 , H 2 O, and their mixtures on char reactivity and to explore the essence of the observed interaction between CO 2 and H 2 O during char gasification. A Y-type dual fixed-bed (DFB) reactor was designed for gasification studies, which allowed direct comparison of product gas compositions between the separate and mixed gasification modes. Experimental and analytical data provided conclusive evidence of synergistic interaction between CO 2 and H 2 O during gasification in mixed atmospheres. The results revealed that H 2 O played a role in promoting the development of mesopores, which allowed CO 2 to enter the micropores more rapidly and to contribute to the observed synergy. This observed synergy increased with the increasing volume fraction of the reactant gases, while it decreased with the rising gasification temperature.

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Author

Liu, Rui; Zhang, Yan; Ling, Zheng; Song, Yongchen

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0016-2361)

Published

2020

Language

EN

Field

Engineering (Physical Sciences)