Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2008-04-01
2008-04-01
Nguyen, Cam N. (Department: 1793)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C502S303000, C502S304000, C502S324000, C502S326000, C502S327000, C502S334000, C502S339000, C502S341000, C502S349000, C502S353000, C502S354000, C502S355000, C502S415000, C502S439000, C502S524000
Reexamination Certificate
active
07351382
ABSTRACT:
The present invention is directed to a particle filter to remove soot from the exhaust gas of a diesel engine. The particle filter contains a catalytically active coating on a filter body to accelerate bum-off during a regeneration phase of the soot particles collected on the filter. The particle filter comprises a catalytic coating containing compounds of barium, compounds of magnesium, and at least one element of the platinum group metals. The invention is further directed to a process for accelerated combustion of soot particles collected on the filter from lean exhaust gas of a diesel engine in which the soot particles have a soot ignition temperature and the particle filter is actively regenerated from time to time by raising the temperature of the particle filter above the soot ignition temperature and burning off the soot particles.
REFERENCES:
patent: 3956186 (1976-05-01), Iwase et al.
patent: 4188309 (1980-02-01), Volker et al.
patent: 4233139 (1980-11-01), Murrell et al.
patent: 4455393 (1984-06-01), Domesle et al.
patent: 4472532 (1984-09-01), Mooi
patent: 4476245 (1984-10-01), Siefert
patent: 4477417 (1984-10-01), Domesle et al.
patent: 4510265 (1985-04-01), Hartwig
patent: 4515758 (1985-05-01), Domesle et al.
patent: 4588707 (1986-05-01), Domesle et al.
patent: 4828807 (1989-05-01), Domesle et al.
patent: 4849399 (1989-07-01), Joy, III et al.
patent: 4900517 (1990-02-01), Domesle et al.
patent: 4996031 (1991-02-01), Spooner et al.
patent: 5100632 (1992-03-01), Dettling et al.
patent: 5290530 (1994-03-01), Muramatsu et al.
patent: 5758496 (1998-06-01), Rao et al.
patent: 5792436 (1998-08-01), Feeley et al.
patent: 5800790 (1998-09-01), Imamura et al.
patent: 5884473 (1999-03-01), Noda et al.
patent: 5968870 (1999-10-01), Iizuka et al.
patent: 6023928 (2000-02-01), Peter-Hoblyn et al.
patent: 6093378 (2000-07-01), Deeba et al.
patent: 6218335 (2001-04-01), Okada et al.
patent: 6372688 (2002-04-01), Yamashita et al.
patent: 6375910 (2002-04-01), Deeba et al.
patent: 6413904 (2002-07-01), Strehlau et al.
patent: 6613299 (2003-09-01), Dang et al.
patent: 6649563 (2003-11-01), Nakanishi et al.
patent: 6677272 (2004-01-01), Beall et al.
patent: 2003/0049191 (2003-03-01), Twigg
patent: 2003/0091481 (2003-05-01), Dang et al.
patent: 2003/0211020 (2003-11-01), Rao et al.
patent: 2004/0033175 (2004-02-01), Ohno et al.
patent: 31 41 713 (1983-05-01), None
patent: 32 327 29 (1984-03-01), None
patent: 34 07 172 (1985-09-01), None
patent: 0 341 832 (1996-10-01), None
patent: 0 835 684 (1998-04-01), None
patent: 0 945 608 (1999-03-01), None
patent: 0 982 066 (1999-08-01), None
patent: 1 127 603 (2001-02-01), None
patent: 1 147 802 (2001-04-01), None
patent: 0 134 407 (1984-08-01), None
patent: WO 01/12320 (2000-08-01), None
European Search Report, OMG AG & Co. KG., Jul. 17, 2003.
Geishoff Jürgen
Kattwinkel Peter
Kreuzer Thomas
Kühn Christian
Lox Egbert
Kalow & Springut LLP
Nguyen Cam N.
Umicore AG & Co. KG
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