改良されたゼオライト含有酸化触媒および使用方法

Japanese Patent JP3712240

B2

Oxidation catalyst compositions for treating diesel exhaust include ceria and optionally, alumina, each having a surface area of at least about 10 m<2>/g, and a zeolite, e.g., Beta zeolite. Optionally, platinum may be included in the catalytic material, preferably in amounts which are sufficient to promote some gas-phase oxidation of carbon monoxide ("CO") and hydrocarbons ("HC") but which are limited to preclude excessive oxidation of SO2 to SO3. Alternatively, palladium in any desired amount may be included in the catalytic material. The zeolite is optionally doped, e.g., ion-exchanged, with one or more of hydrogen, a platinum group metal or other catalytic metals. The catalyst compositions may be used in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of gas-phase CO and HC and of the volatile organic fraction component of particulates in the exhaust.

WO/2012/090922	CATALYST FOR NITROGEN OXIDE REMOVAL
JP5006064	Honeycomb structure

Yabs, Brent Oh
Boss, kenneth yee
Deiba, michael
Admitices, Jiyoung Earl
Farouto, Robert Theei

JP52205894A

November 02, 2005

February 15, 1994

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ENGELHARD CORPORATION

B01D53/94; B01J29/06; B01J29/064; B01J29/08; B01J29/10; B01J29/12; B01J29/18; B01J29/20; B01D53/86; B01J29/22; B01J29/40; B01J29/42; B01J29/74; B01J29/76; B01J37/02; B01J29/72; F02B3/06; (IPC1-7): B01J29/74; B01D53/86; B01D53/94; B01J29/76

JP1127044A
JP2174937A
JP6071179A

Heikichi Odashima

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