| 摘要 |
A process for regeneration of cracking catalyst while minimizing NOx emissions is disclosed. A DeNOx additive is present in an amount and in a form which reduces NOx emissions, but does not passivate metals (such as Ni and V) deposited on the catalyst during the cracking reaction nor CO combustion promoter which may be present. Relatively small amounts of antimony oxides impregnated on a separate support having little or no cracking activity are preferred.
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