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Combined SCR/SNCR process 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01J-008/00
  • C01B-021/00
출원번호 US-0360506 (1999-07-26)
발명자 / 주소
  • Spokoyny Felix E.
출원인 / 주소
  • Hera, LLC
대리인 / 주소
    Sandler
인용정보 피인용 횟수 : 24  인용 특허 : 16

초록

In many situations where the maximum NOx reduction capabilities of conventional SCR systems are not necessary, and alternative SNCR systems may not economically provide desired NOx reduction, a staged SCR/SNCR system is believed to be the most appropriate solution available. By means of the present

대표청구항

[ What is claimed is:] [1.] In a combined SNCR/SCR system for removing NOx from a flue gas stream of a fossil fuel burning facility, such as a power plant, the improvement in the method of providing the nitrogenous compound necessary for the respective process reactions, comprising the steps of:prov

이 특허에 인용된 특허 (16)

  1. Michelfelder Sigfrid (Gummersbach DEX) Michalak Stanislaw (Reichshof DEX), Apparatus for preheating combustion air, accompanied by simultaneous reduction of NOx contained in the flu.
  2. Schell Lorenz P. (Sulphur LA), Catalytic method for hydrolyzing urea.
  3. Luftglass Bryan K. (South Salem NY) Sun William H. (Aurora IL) Hofmann John E. (Naperville IL), Catalytic/non-catalytic combination process for nitrogen oxides reduction.
  4. Hofmann John E. (Stamford CT) Sun William H. (Wallingford CT) Luftglass Bryan K. (South Salem NY), Combined catalytic/non-catalytic process for nitrogen oxides reduction.
  5. Krigmont Henry V. (Seal Beach CA) Kozacka Wayne R. (Laguna Hills CA) Spokoyny Felix E. (Costa Mesa CA), Control of NOx reduction in flue gas flows.
  6. Sun William H. (Naperville IL) Hofmann John E. (Naperville IL) Lin M. Linda (Naperville IL), Highly efficient hybrid process for nitrogen oxides reduction.
  7. Gibbons Francis X. ; Huhmann Alexander L. ; Wallace Albert J., Hybrid SCR/SNCR process.
  8. Mansour Mansour N. (Irvine CA) Sudduth Bruce C. (Corona CA), Integrated catalytic/non-catalytic process for selective reduction of nitrogen oxides.
  9. Hofmann John E. (Naperville IL) Von Harpe Thure (Meerbusch DEX) Diep Daniel V. (Aurora IL) Lin M. Linda (Naperville IL), Low pressure formation of a urea hydrolysate for nitrogen oxides reduction.
  10. Jones Dale G. (Visalia CA), Method for converting urea to ammonia.
  11. Epperly William R. (New Canaan CT) Peter-Hoblyn Jeremy D. (Cornwall CT GBX) Shulof ; Jr. George F. (Wilton CT) Sullivan James C. (Norwalk CT) Sprague Barry N. (Bethlehem CT) O\Leary John H. (Danbury , Multi-stage process for reducing the concentration of pollutants in an effluent.
  12. von Harpe Thure (Meerbusch DEX) Pachaly Reinhard (Kerpen IL DEX) Lin M. Linda (Naperville IL) Diep Daniel V. (Aurora IL) Wegrzyn Joseph B. (Naperville IL), Nitrogen oxides reduction using a urea hydrolysate.
  13. Atsukawa Masumi (Hiroshima JPX) Matsumoto Kazuhiro (Hiroshima JPX) Seto Toru (Hiroshima JPX) Sera Toshikuni (Hiroshima JPX) Ukawa Naohiko (Hiroshima JPX), Process for controlling nitrogen oxides in exhaust gases and apparatus therefor.
  14. von Harpe Thure (Meerbusch DEX) Pachaly Reihard (Kerpen IL DEX) Holfmann John E. (Naperville IL), Process for the in-line hydrolysis of urea.
  15. Leach James T. (24921 Danamaple St. Dana Point CA 92629), Selective hybrid NOx reduction process.
  16. Young Donald C. (Fullerton CA), Transporting urea for quantitative conversion into ammonia.

이 특허를 인용한 특허 (24)

  1. Berriman, Lester P.; Zabsky, John M.; Simons, Lionel S., Ammonia storage and injection in NOx control.
  2. Gretta, William; Pear, Eric; Karmarkar, Dileep, Ammonia vaporization system using non-flue gas intermediate heat transfer medium.
  3. DeSellem, James F., Boiler internal flue gas by-pass damper for flue gas temperature control.
  4. Breen, Bernard P.; Gabrielson, James E., Control of mercury and other elemental metal emissions from combustion devices by oxidation.
  5. Breen, Bernard P.; Schrecengost, Robert A., Control of mercury and other elemental metal emissions using reaction stabilization device.
  6. Leach,James T.; Fraim,Michael Lee, Controlled spectrum ultraviolet radiation pollution control process.
  7. Greene Benjamin T., Curved blade by-pass damper with flow control.
  8. Moyeda, David Kelly; Zhou, Wei; Marquez, Antonio; Guang, Xu; Nareddy, Santosh, Method and apparatus to inject reagent in SNCR/SCR emission system for boiler.
  9. Koss, Ulrich; Jukkola, Glen D., Method and device for cleaning an industrial waste gas comprising CO2.
  10. Bedell, Stephen Alan, Method and system for low energy carbon dioxide removal.
  11. Sun, Jinhui; Mupparapu, Shashank; Tarabulski, Theodore J.; Park, Paul W., Method for purging a dosing system.
  12. Brooks, Burton; Jessup, Walter A.; MacArthur, Brian W., Method of quantitatively producing ammonia from urea.
  13. Driscoll,James Joshua; Milam,David M., Multi-stage system for selective catalytic reduction.
  14. Brooks,Burton; Jessup,Walter A.; MacArthur,Brian W.; Sheats,W. Brad, Process and apparatus for quantitatively converting urea to ammonia on demand.
  15. Brooks, Burton; Jessup, Walter A.; MacArthur, Brian W.; Sheats, W. Brad, Process for quantitatively converting urea to ammonia on demand.
  16. Sun, William H.; Cummings, Jr., William E.; de Havilland, Piers; Carmignani, Paul G.; Boyle, John M., Selective catalytic reduction of NOenabled by sidestream urea decomposition.
  17. Lin, M. Linda; Sun, William H.; Boyle, John M.; Stamatakis, Penelope, Selective catalytic reduction of NOenabled by urea decomposition heat-exchanger bypass.
  18. Sun,William H.; Cummings, Jr.,William E.; de Havilland,Piers; Carmignani,Paul G.; Boyle,John M., Selective catalytic reduction of nox enabled by sidestream urea decomposition.
  19. Driscoll, James Joshua, Selective catalytic reduction system.
  20. Botte, Gerardine G., Selective catalytic reduction via electrolysis of urea.
  21. Botte, Gerardine G., Selective catalytic reduction via electrolysis of urea.
  22. Gretta, William; Pear, Eric; Karmarkar, Dileep, Separation of aqueous ammonia components for NO.
  23. Liu, Zheng; Ferguson, Alan W.; Handagama, Nareshkumar B., Solid materials and method for CO2 removal from gas stream.
  24. Stallmann, Olaf, System and method for low NOx emitting regeneration of desiccants.

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