The Effect of Heat Decomposition Temperature on the Dissolution Rate of Magnesium-based Materials for Wet Flue Gas Desulfurization

Magnesium hydrate is the absorbent in magnesia scrubbing wet flue gas desulfurization. Its dissolution rate has a great impact on the performance of SO 2 removal. Further, magnesia is the heat decomposition product of magnesite. The effect of magnesite heat decomposition temperature on the dissoluti...

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Published inEnergy sources. Part A, Recovery, utilization, and environmental effects Vol. 36; no. 1; pp. 1 - 4
Main Authors Guo, R.-T., Pan, W.-G., Zhang, X.-B., Jin, Q., Xu, H.-J., Ren, J.-X.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 02.01.2014
Subjects
dissolution
flue gas desulfurization
heat decomposition
magnesite
magnesium hydrate
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Summary:Magnesium hydrate is the absorbent in magnesia scrubbing wet flue gas desulfurization. Its dissolution rate has a great impact on the performance of SO 2 removal. Further, magnesia is the heat decomposition product of magnesite. The effect of magnesite heat decomposition temperature on the dissolution rate of magnesium hydrate is investigated in this study. As can be seen from the experimental results, magnesium hydrate dissolution rate increased with increasing heat decomposition temperature up to 700°C and then decreased with the increase of heat decomposition temperature. This is caused by the change of magnesite heat decomposition mechanism at a different heat decomposition temperature.
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ISSN:1556-7036
1556-7230
DOI:10.1080/15567036.2011.592922