Method and apparatus for desulfurization and denitrification of waste gas by multi-stage electron beam irradiation
Patent 4435260 Issued on March 6, 1984. Estimated Expiration Date: 
June 15, 2001. 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.
June 15, 2001. 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 3188167 3562127 3755120 3846637 Apparatus for purifying exhaust gases containing ionizable and oxidizable components Electrostatically enhanced removal of sulfur dioxide from gaseous carriers Nitrogen oxide decomposition process Patent #: 3983021 InventorsAssigneeApplicationNo. 06/273511 filed on 06/15/1981US Classes:204/164Electrostatic field or electrical dischargeExaminersPrimary: Edmundson, F.C.Attorney, Agent or FirmInternational ClassesB01D 53/00 (20060101)B01D 53/60 (20060101) Foreign Application Priority Data1980-06-16 JPAbstractRemoval of NOx and SOx from waste gases is carried out by irradiation of the gas with ionizing radiation at a dose such as to reduce the content of NOx and SOx to a first predetermined level and passing such gas through subsequent irradiating stages with the dose of irradiation of the gas in the last stage being determined by the levels of NOx and SOx entering said last stage whereby to reduce such contaminants to desired levels and thereafter passing the gas through an aerosol collector. |
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