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Trends in Chemical Engineering   Volumes    Volume 10 
Inorganic, wet flue gas desulfurization (FGD) technologies – a review
Jacek A. Michalski
Pages: 31 - 40
Number of pages: 10
Trends in Chemical Engineering
Volume 10 

Copyright © 2006 Research Trends. All rights reserved


Wet flue gas desulfurization technologies (FGD) are commonly applied for sulfur dioxide removal from burner gas produced by conventional power plants. Dependently on power plant location, temperature and content of burner gas, sorbent availability and product attractiveness different FGD methods are used. In most cases in FGD technologies spray towers are applied as SO2 absorbers. The advantages and dis-advantages of such apparatuses, configuration (counter-current, concurrent and horizontal) are described in this paper. Except process also economical aspects of their application are depicted. Inorganic wet flue gas desulfurization technologies using the following sorbents: limestone, lime, magnesium enhanced lime, dolomite lime (dolime), magnesium lime, ammonium, seawater, sodium sulfite (Wellman-Lord) are described. In every case allover chemical reactions, key parameters of the process and efficiency of sulfur dioxide removal are presented. Limitation of method application caused by additives or physical phenomena are shown but only when they are well documented. Remarks concerning investment and/or maintenance cost of the installation are also depicted.

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