| 摘要 |
A method for decomposing nitrous oxide with a catalyst comprising a zeolite which has been at least partially ion-exchanged with at least 1 cation derived from at least one compound selected from the group consisting of hydrogen, ammonium-containing compounds, metals and metal compounds below sodium on the Periodic Table of Elements where the zeolite has a molar ratio of silica to alumina which is controlled to increase catalyst stability. Preferred silica to alumina molar ratios are greater than 55 and more preferably 55 to 200.
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