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    • 10. 发明公开
    • PROCESS FOR CATALYST REGENERATION
    • 催化剂再生工艺
    • EP3233278A1
    • 2017-10-25
    • EP15870727.3
    • 2015-12-10
    • UOP LLC
    • COX, PelinJAN, Deng-Yang
    • B01J38/20B01J38/14B01J29/90
    • B01J29/90B01J38/20C10G11/182C10G45/68
    • A process is disclosed for an improved catalyst regeneration process to improve catalyst stability and hence increase overall catalyst life. The process includes passing a spent catalyst stream to a first, or upper, combustion zone to partially regenerate the catalyst through controlled combustion of the carbon on the catalyst. The first combustion zone will burn off a high fraction of hydrogen at lower temperatures generating a large fraction of H
      2 O. The partially regenerated catalyst is passed to a second, or lower, combustion zone to burn off the remaining coke at the needed high severity operation. The second combustion zone will burn off the remaining coke at a higher temperature and higher oxygen gas inlet concentration.
    • 公开了一种改进的催化剂再生方法以改善催化剂稳定性并由此增加整体催化剂寿命的方法。 该方法包括使废催化剂流通过第一或上部燃烧区,以通过催化剂上碳的受控燃烧部分再生催化剂。 第一燃烧区将在较低温度下燃烧掉高比例的氢气,从而产生大部分H 2 O. 部分再生的催化剂被传送到第二个或更低的燃烧区,以在需要的高苛刻度操作下燃烧剩余的焦炭。 第二燃烧区将在更高的温度和更高的氧气入口浓度下燃烧剩余的焦炭。