Flue gas desulfurizer, boiler equipment and thermal electric power generation equipment
August 12, 2016. 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 3812793 Device for treating gases Integrated flue gas processing system Control system for economic operation of a steam generator Apparatus for the desulfurization of flue gases Flue gas heat recovery system Apparatus for neutralization of acidic pollutants in flue gases Device for heating a fluid and for cleaning waste gases from heating systems Low temperature Nox /Sox removal apparatus Method and arrangement for the denitrification and desulfurization of hot waste gases, particularly from furnaces Inventors
AssigneeApplicationNo. 696317 filed on 08/12/1996US Classes:110/215, Means contacting exhaust gas with liquid60/678, Withdrawn fluid heats boiler feed indirectly60/691, Boiler feed water heated by exhaust110/203, WITH EXHAUST GAS TREATMENT MEANS110/234, With boiler122/1C, Feed water heaters122/420, Furnace gases422/168, Waste gas purifier422/173With heat exchanger for reaction chamber or reactants located thereinExaminersPrimary: Lazarus, Ira S.Assistant: Ciric, Ljiljana Attorney, Agent or FirmForeign Patent References
International ClassesF23J 015/00F23B 007/00 F01K 007/34 F22D 001/40 Foreign Application Priority Data1995-10-13 JPAbstractA flue gas desulfurizer having an absorption tower for bringing untreated flue gas into gas-liquid contact with an absorbent slurry, wherein there is provided heat recovery means for recovering heat from the flue gas passing through the flue gas inlet section of the absorption tower prior to gas-liquid contact, and to boiler equipment including heat release means for releasing the recovered heat to heat utilization equipment. This invention also relates to thermal electric power generation equipment including extraction feedwater heaters for heating boiler feedwater with steam from steam turbines, a flue gas desulfurizer using an absorbent slurry, and means for recovering heat from the flue gas passing through the flue gas desulfurizer and/or the absorbent slurry within the flue gas desulfurizer, whereby boiler feedwater is preheated by the recovered heat and then introduced into the extraction feedwater heaters.Other References
Field of SearchWITH EXHAUST GAS TREATMENT MEANSMeans contacting exhaust gas with liquid Exhaust gas; e.g., pollution control, etc. With boiler Waste gas purifier Including means providing sequential purification stages With heat exchanger for reaction chamber or reactants located therein Regenerative heat sink Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. Including heat exchanger for reaction chamber or reactants located therein Indirect heat-exchange tube within reaction chamber with a nonreactant heat-exchange fluid passing therethrough Tube and shell type Including internal mixing or stirring means Mechanical type stirring means Longitudinally extending spiral stirring means Gas sparger type mixing means submerged in liquid reactant Including external recycle loop And means heating or cooling loop or reaction mass located therein Air heaters Feed water heaters GAS-PRODUCER Subsidiary-heater offtake flue Furnace gases Offtake flue Withdrawn fluid heats boiler feed indirectly Boiler feed water heated by exhaust | |
