Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1989-03-21
1991-05-21
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423244, C01B 1700, B01J 800
Patent
active
050173499
ABSTRACT:
A system for the removal of sulfur compounds from the flue gas from a high-sulfur coal combustion unit. The flue gas is contacted with a combination of a calcium hydroxide slurry and gaseous ammonia in a combined stoichiometric ratio which provides for near 100% utilization of the calcium hydroxide and ammonia with a sulfur dioxide removal efficiency approaching 100%. The system is useful in treating flue gas from high-sulfur coal combustion to remove the sulfur dioxide therefrom so that the flue gas can be exhausted to the atmosphere.
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patent: 4793981 (1988-12-01), Doyle et al.
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"Ammonia Injection: A route to Clean Stacks", C. C. Shale, Pollution Control and Energy Needs, Advances in Chemistry Series 127, American Chemical Society, Washington, D. C. (1973), pp. 195-205.
"Research on the Simultaneous Removal of SO.sub.x and Particulates from Stoker-Fired Boilers", W. T. Davis, T. C. Kenner, C. S. Means and R. B. Dooley, Proceedings of the 70th Annual Meeting of the Air Pollution Control.
"Simultaneous Removal of Sulfur Oxides and Particulate Matter from Stoker-Fired Boiler Flue Gas with a Piolt Plant Fabric Filter Collector" Timothy C. Keener, Thesis, The University of Tennessee, Knoxville, TN., Aug., 1977.
"Research on the Removal of SO.sub.2 by Additive Injection Techniques on a Stoker-Fired Boiler", Wayne T. Davis, Timothy C. Keener and Lloyd L. Lavely, Proceedings of the 71st Annual Meeting of the Air Pollution Control.
Davis Wayne T.
Keener Timothy C.
Reed Gregory D.
Heller Gregory A.
The University of Tennessee Research Corporation
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