Oxidation catalyst for treating a natural gas emission
AssigneeJohnson Matthey Public Limited Company
InventorsHai-Ying Chen, Joseph Michael Fedeyko, Jing Lu, Paul Joseph Andersen, Arthur Joseph Reining, Rita Aiello
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Abstract
A catalytic material for treating an exhaust gas produced by a natural gas engine, which catalytic material comprises a molecular sieve and a platinum group metal (PGM) supported on the molecular sieve, wherein the molecular sieve has a framework comprising silicon, oxygen and optionally germanium, and has a content of heteroatom T-atoms is ≤about 0.20 mol %.
Claims26
An oxidation catalyst for treating an exhaust gas produced by a natural gas (NG) engine, which oxidation catalyst comprises a catalytic material for treating the exhaust gas and a substrate,
- which catalytic material comprises a platinum (Pt), palladium (Pd) or a combination of platinum (Pt) and palladium (Pd) supported on a molecular sieve,
- wherein the molecular sieve, ia a zeolite, and has a content of heteroatom T-atoms of ≤about 0.20 mol %, and the molecular sieve has a molar ratio of silica to alumina (SAR) of ≥1500.
Dependencies are inferred from the claim text.