| 摘要 |
A COMPOSITION FOR CONTROLLING CO AND NOx EMISSIONS DURING FCC PROCESSES COMPRISES (i) ACIDIC OXIDE SUPPORT, (ii) CERIUM OXIDE, (iii) LANTHANIDE OXIDE OTHER THAN CERIA SUCH AS PRASEODYMIUM OXIDE (iv), OPTIONALLY, OXIDE OF A METAL FROM GROUPS Ib AND IIb SUCH AS COPPER, SILVER AND ZINC AND (V) PRECIOUS METAL SUCH AS Pt AND Pd.
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