US 2019/0015779 A1

Cement kiln exhaust gas pollution reduction

(22) 14.09.2018

(43) 17.01.2019

(57) A method for reducing pollution in a cement kiln environment and a system for treating cement kiln exhaust gas are provided. The method includes the steps of: treating a cement kiln exhaust gas stream with a treating fluid, such as a water soluble alkaline-earth metal sulfide. In one application, the treating fluid is injected by spraying droplets into the cement kiln exhaust gas stream. A system for treating cement kiln exhaust gas includes a reagent containing a water soluble alkaline-earth metal sulfide in water, and a nozzle to spray the reagent into the cement kiln exhaust gas stream.

(71) Mercury Capture Intellectual Property, LLC, Louisville, KY (US)

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