Exhaust gas treatment apparatus

Details Exhaust gas treatment apparatus Exhaust gas treatment apparatus

2009-02-24

2011-12-20

Duong, Tom (Department: 1774)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

Reexamination Certificate

active

08080209

ABSTRACT:
An exhaust gas treatment apparatus includes a device (A) which is provided in an exhaust system and which selectively reduces NOxin an exhaust gas and a device (B) which is disposed upstream of the device (A) and which decomposes urea and supplies ammonia as a NOxreducing gas, the device (B) including a urea decomposition catalyst. The catalyst is [1] a zeolite catalyst which is composed of granular molded bodies including zeolite particles or which includes a catalyst layer composed of zeolite particles disposed on a support, or [2] a honeycomb catalyst or a membranous catalyst in which metal oxide particulates adhere to a conductive honeycomb substrate or netlike support, and the metal oxide particulates are composed of at least one oxide of a metal selected from the group consisting of Na, Mg, Ca, Ba, La, Ce, Ti, Zr, V, Cr, Mo, W, Mn, Zn, Al, Si, P, Sb, Cu, Fe, Ru, Co, and Re.

REFERENCES:
patent: 6762143 (2004-07-01), Shan et al.
patent: 7509799 (2009-03-01), Amou et al.
patent: 2007/0259770 (2007-11-01), Hofmann et al.
patent: 19734627 (1999-01-01), None
patent: 0487886 (1992-06-01), None
patent: 0555746 (1993-08-01), None
patent: 0615777 (1994-09-01), None
patent: 1481719 (2004-12-01), None
patent: 2045369 (2009-04-01), None
patent: 2001027112 (2001-01-01), None
patent: 2002089241 (2002-03-01), None
patent: 2002121697 (2002-04-01), None
patent: 2004238209 (2004-08-01), None
patent: 2005273509 (2005-10-01), None
patent: 2005288397 (2005-10-01), None
patent: 2005344597 (2005-12-01), None
patent: 2007229544 (2007-09-01), None
patent: 2007332451 (2007-12-01), None
patent: 0117901 (2001-03-01), None
patent: 2005025725 (2005-03-01), None
patent: 2008089956 (2008-07-01), None
Steinbach, Sebastian et al., “Characterisation of structured hydrolysis catalysts for urea-SCR”, Topics in Catalysts, May 2007, pp. 99-103, vols. 42-43, Springer Science+Business Media, LLC.

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