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특허 상세정보

Catalytic reduction of NOx

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-003/00    F01N-003/02    F01N-003/20    B01D-053/94    F01N-003/18    F01N-003/10    F01N-003/32    F02B-037/16    F01N-003/035    F01N-013/00   
출원번호 US-0250449 (2014-04-11)
등록번호 US-9073010 (2015-07-07)
우선권정보 GB-9802504.2 (1998-02-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Brummett TechLaw PLLC
인용정보 피인용 횟수 : 1  인용 특허 : 42
초록

A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.

대표
청구항

1. A method comprising: (a) passing an exhaust gas from a diesel engine over an oxidation catalyst to provide an adjusted gas stream, the exhaust gas comprising a first content level by volume of NO, a first content level by volume of NO2, and particulate matter, and the adjusted gas stream comprising a second content level by volume of NO that is lower than the first content level of NO, and a second content level by volume of NO2;(b) passing the adjusted gas stream through a particulate trap that results in trapping at least a portion of the particulat...

이 특허에 인용된 특허 (42)

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  26. Baacke Michael (Hanau DEX) Beand Reinhold (Hanau DEX) Engler Bernd (Hanau DEX) Kiss Akos (Alzenau/Wasserlos DEX) Kleine-Mllhoff Peter (Waldbuettelbrunn DEX) Kleinschmit Peter (Hanau DEX) Koberstein E. Method for the reduction of nitrogen oxides from waste gases using a zeolite. USP1992055116586.
  27. Yoshida Kiyohide (Kumagaya JPX) Muramatsu Gyo (Kumagaya JPX) Abe Akira (Kumagaya JPX) Miyadera Tatsuo (Tsukuba JPX). Method of cleaning an exhaust gas and exhaust gas cleaner therefor. USP1996075534237.
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  37. Audeh Costandi A. (Princeton NJ) Sharma Sanjay B. (Langhorne PA) Shihabi David S. (Pennington NJ). Selective catalytic reduction of nitrogen oxides using a ferrocene impregnated zeolite catalyst. USP1996015482692.
  38. Farnos Maria D. (Wilmington DE) McWilliams John P. (Woodbury NJ) Sharma Sanjay B. (Langhorne PA) Shihabi David S. (Pennington NJ) Stevenson Scott A. (Langhorne PA) Vartuli James C. (West Chester PA). Selective catalytic reduction of nitrogen oxides using an iron impregnated zeolite catalyst. USP1995095451387.
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