Diesel oxidation catalyst with enhanced hydrocarbon ignition properties

By using a high-surface-area alumina support doped with metal oxides and a catalyst composition of platinum group metals in a diesel engine, the emission control problem during cold start was solved, achieving effective oxidation of HC and NOx and efficient start-up of SCR at low temperatures, thus meeting stringent environmental regulations.

CN116490269BActive Publication Date: 2026-07-17BASF CORPORATON
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BASF CORPORATON
Filing Date
2021-10-15
Publication Date
2026-07-17

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Abstract

This disclosure relates to an oxidation catalyst composition for use in close-coupled diesel engine oxidation catalyst (ccDOC) applications, wherein the ccDOC can act as a heat generator under high space velocity conditions. The oxidation catalyst composition comprises a high surface area support material doped with at least one metal oxide and a platinum group metal (PGM) supported on the doped high surface area support material.
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