Title:
METAL FOIL CATALYST FOR THE CONTROL OF EMISSIONS FROM DIESEL ENGINES
Document Type and Number:
WIPO Patent Application WO/2019/194881
Kind Code:
A8
Abstract:
A diesel engine emissions catalyst (10) of this disclosure may be used to fill a niche between standard oxidation catalyst and diesel particulate filters for the control of diesel particulate matter. In embodiments, the catalyst includes a structure (substrate) (11) comprising one or more coated, corrugated micro-expanded metal foil layers (13). The coated surface may be a high surface area, stabilized, and promoted washcoat layer (23). The corrugated pattern may include a herringbone-style pattern that, when in use, is oriented in a longitudinal direction (L) of the diesel engine exhaust flow. The micro-expanded metal foil (17) provides small openings or eyes (19) that, as the exhaust flow passes through the catalyst (transverse to the eye opening), particulates in the flow impinge on the surface and becomes trapped in the eyes (19). The catalyst (10) may be used to treat a locomotive engine exhaust stream and may be used with a selective catalyst reduction system.
Inventors:
ROBINSON JOHN (US)
VERDEGAN DONALD (US)
JACOBS D (US)
VERDEGAN DONALD (US)
JACOBS D (US)
Application Number:
PCT/US2019/013433
Publication Date:
November 19, 2020
Filing Date:
January 14, 2019
Export Citation:
Assignee:
CATALYTIC COMBUSTION CORP (US)
International Classes:
B01D53/88; B01D53/94; B01J35/04; B01J35/10; B21D31/02; B21D31/04; F01N3/10; F01N3/28
Attorney, Agent or Firm:
ROSSLER, Paul, E. (US)
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