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Release Rules of Alkali and Alkaline Earth Metals during Coal Gasification in CO2 and O2/CO2

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Abstract:

Release rules of alkali and alkaline earth metals during coal gasification in CO2 and O2/CO2 are studied with fix-bed reactor and ion chromatography. The results show that the release rates of Na, K and Mg increase with the increase of temperature. Temperature has almost no effect on the release rate of Ca under the experimental conditions. Compare with temperature, Oxygen concentration has less effect on AAEM volatilization. The release rates of Na and K are higher than that of Mg and Ca. This indicates that the primary mechanisms of volatilization of Na and K are different from those of Mg and Ca.

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Periodical:

Advanced Materials Research (Volumes 396-398)

Pages:

1206-1209

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.1206

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Online since:

November 2011

Authors:

Jian Ying Lin, Yang Liu, Yu Qiao

Keywords:

Calcium, Magnesium, Oxy-Fuel Combustion, Potassium, Release Rule, Sodium

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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