Title:
ディーゼルエンジン排気からの煤粒子を除去するための触媒フィルター及びその製造方法
Document Type and Number:
Japanese Patent JP2006523528
Kind Code:
A
Abstract:
Disclosed is a catalytic filter for removing soot particulates from diesel engine exhaust, which is comprised of monolithic oxidation catalyst upstream of the catalytic filter, which effectively oxidize gaseous pollutants and volatile organic fractions, and a catalyzed wall-flow filter downstream serving to low temperature combustion of soot particulates collected on the filter. Also, the preparation method of the catalytic filter is provided, including the colloidal mixture solution of platinum group metal salts and other metal salts with a water-soluble polymer and a reducing agent, which is then impregnated on a catalyst support, followed by calcining at high temperatures. In the present invention, use of the catalytic filter provides effective means of abating diesel exhaust pollutant emissions, that is, particulate matter (PM) and gaseous pollutants (HC, CO, NOx).
Inventors:
Kim, Yung-Woo
Min, June-Soak
Kim, san-yeon
Lee, Chang
Min, Wash
Min, June-Soak
Kim, san-yeon
Lee, Chang
Min, Wash
Application Number:
JP2006507804A
Publication Date:
October 19, 2006
Filing Date:
April 14, 2004
Export Citation:
Assignee:
SK Corporation
International Classes:
B01D39/00; B01D39/14; B01D39/20; B01D46/42; B01D53/34; B01D53/86; B01D53/94; B01J23/42; B01J23/56; B01J23/652; B01J35/00; B01J35/04; B01J37/02; B01J37/03; B01J37/08; B01J37/16; B05D1/12; B32B27/02; F01N3/02; F01N3/035; F01N3/10
Domestic Patent References:
| JP2002153733A | 2002-05-28 | |||
| JP2002520149A | 2002-07-09 | |||
| JPH07100380A | 1995-04-18 | |||
| JPS627448A | 1987-01-14 | |||
| JP3012249B2 | 2000-02-21 | |||
| JP2002174111A | 2002-06-21 | |||
| JPH10137590A | 1998-05-26 | |||
| JPH07328442A | 1995-12-19 |
Attorney, Agent or Firm:
Calyx
Miyazaki Yoshio
Mitsuo Tateishi
Toshio Nakamura
Tsutomu Kato
Kaoru Onozuka
High Masahiro
Yusuke Murakoshi
Tomoaki Komiya
Miyazaki Yoshio
Mitsuo Tateishi
Toshio Nakamura
Tsutomu Kato
Kaoru Onozuka
High Masahiro
Yusuke Murakoshi
Tomoaki Komiya