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METHOD OF AND PLANT FOR SELECTIVE REMOVAL OF FLY ASH AND A USED ABSORPTION AGENT FOR VOLATILE CONSTITUENTS FROM EXIT GASES
METHOD OF AND PLANT FOR SELECTIVE REMOVAL OF FLY ASH AND A USED ABSORPTION AGENT FOR VOLATILE CONSTITUENTS FROM EXIT GASES
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机译:一种选择性清除粉煤灰的方法和装置以及一种用于出口烟气中挥发性成分的吸附剂
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摘要
The present invention is directed to a method for selective purification of gases. The method comprises feeding an exhaust gas containing a solid impurity and a gaseous impurity to a separator. A substantial portion of the solid impurity is separated. Then, the partially-purified gas is fed to a spray dryer. That gas is sprayed with an absorption agent to separate gaseous impurities. Then, the further, partially-purified gas is fed to another separator to separate remaining solid impurity. An exhaust gas which is substantially free of solid and gaseous impurities and fly ash having a desired quality are recovered.
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