Method of purifying exhaust gas
Patent 4726940 Issued on February 23, 1988. Estimated Expiration Date: 
May 21, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 21, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2919174 3343908 Process for the removal of sulfurous gases from the emissions of chemical processes Gas purification Process of removing pollutants from exhaust gases Patent #: 4548797 InventorAssigneeApplicationNo. 06/865883 filed on 05/21/1986US Classes:423/246, Carbon monoxide component423/240S, Solid removal agent423/244.08CarbonateExaminersPrimary: Heller, Gregory A.Attorney, Agent or FirmInternational ClassB01D 53/68 (20060101)AbstractA method of purifying an exhaust gas characterized by dispersing individually independent fine particles of a Ca-containing absorbent in a carrier gas to a high concentration by a dividing-dispersing device to which the carrier gas and the absorbent are supplied, the absorbent being up to 10 microns in mean particle diameter, introducing the resulting aerosol of high concentration into the exhaust gas to uniformly mix the aerosol with the exhaust gas and thereafter introducing the exhaust gas into a dust collector, whereby the fine particles of absorbent having absorbed harmful acid substances from the exhaust gas are removed together with dust and soot. The absorbent forming secondary agglomerates before reaching the dividing-dispersing device are divided into individually independent primary particles and then dispersed in the carrier gas by the device, so that when introduced into the exhaust gas, the absorbent reacts with the harmful acid substance over an increased area of contact to achieve an improved removal efficiency. |
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