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    • 1. 发明专利
    • Catalyst regeneration process for improving catalyst selectivity
    • 催化再生方法提高催化选择性
    • JP2010253469A
    • 2010-11-11
    • JP2010077451
    • 2010-03-30
    • China Petroleum & Chemical CorpChina Petroleum & Chemical Corp Research Inst Of Petroleum Processing中国石油化工股▲ふん▼有限公司中国石油化工股▲ふん▼有限公司石油化工科学研究院
    • XU YOUHAOCUI SHOUYEZHANG ZHIGANGLU WEIMIN
    • B01J29/90B01J38/34C10G11/18
    • B01J38/30B01J23/94B01J29/90B01J38/06B01J38/12B01J38/16B01J38/34C10G11/05C10G11/182C10G11/185
    • PROBLEM TO BE SOLVED: To provide a catalyst regeneration process which can improve catalyst selectivity. SOLUTION: A first aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a first fluidized bed regenerator and contacted with an oxygen-containing gas stream and optionally introduced steam to carry out a coke combustion reaction, the mixture of the partially regenerated catalyst and flue gas generated as a result is introduced into a second fluidized bed regenerator and contacted with steam and an optionally introduced oxygen-containing gas stream to carry out a further regeneration reaction, and then the regenerated catalyst is introduced into the reactor. A second aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a fluidized dense bed regenerator and contacted with an oxygen-containing gas stream and steam to carry out a coke combustion reaction, and then the regenerated catalyst is introduced into the reactor. By the processes, the distribution of regenerated catalyst activity is made more uniform, and due to the exposure of the catalyst to a low temperature for a long time, a part of heavy metals is buried by a matrix and the remaining are passivated. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供可以提高催化剂选择性的催化剂再生方法。 解决方案:本发明的第一方面的特征在于将来自反应器的废催化剂引入第一流化床再生器中并与含氧气流和任选引入的蒸汽接触以进行焦炭燃烧反应, 将部分再生的催化剂和作为结果产生的烟道气的混合物引入第二流化床再生器中,并与蒸汽和任选引入的含氧气流接触以进行进一步的再生反应,然后引入再生催化剂 进入反应堆。 本发明的第二方面的特征在于将来自反应器的废催化剂引入流化密床再生器中并与含氧气流和蒸汽接触以进行焦炭燃烧反应,然后引入再生催化剂 进入反应堆。 通过这些方法,再生催化剂活性的分布更均匀,并且由于催化剂长时间暴露于低温下,部分重金属被基质掩埋,剩余的被钝化。 版权所有(C)2011,JPO&INPIT