| 摘要 |
Regeneration flue gas streams containing unacceptable levels of CO can be effectively combusted (i.e., for more complete combustion or oxidation of CO to CO2) by contact with a second catalyst undergoing regeneration, for example in a second regenerator. While the second catalyst may also be regenerated by contact with an oxygen-containing gas stream, this second catalyst additionally comprises a noble metal, or is present in combination with a combustion comprising a noble metal. Representative catalysts used in an integrated regeneration process are those used for oxygenate conversion and olefin cracking, both for the purpose of producing light olefins (e.g., ethylene and propylene).
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