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    • 14. 发明授权
    • Device for contacting high contaminated feedstocks with catalyst in an FCC unit
    • 用于将高污染原料与FCC装置中的催化剂接触的装置
    • US07758817B2
    • 2010-07-20
    • US11463497
    • 2006-08-09
    • Brian W. HedrickPaolo Palmas
    • Brian W. HedrickPaolo Palmas
    • B01J8/24
    • C10G11/18C10G2300/202C10G2400/02C10G2400/20
    • An FCC process and apparatus comprising an enlarged riser section and a distributor in an elevated position and with an opening in its tip away from riser walls may reduce coke build-up along the interior walls of a riser. Catalytic mixing may be improved, which could reduce riser coking by increasing hydrocarbon contact with catalyst before contacting the riser wall. Increasing the distance between the introduction of the hydrocarbon and the riser wall may increase this likelihood for hydrocarbon-catalyst contact. Highly contaminated hydrocarbons cause greater coking than do normal hydrocarbons and this FCC process and apparatus may be effective in decreasing riser coking on such heavy hydrocarbons.
    • FCC工艺和设备包括升高部分和升高位置的分配器,并且其尖端远离提升板壁的开口可以沿着提升管的内壁减少焦炭积聚。 可以改善催化混合,这可以在接触提升管壁之前通过增加与催化剂的烃接触来减少立管焦化。 增加碳氢化合物和提升管壁之间的距离可能会增加烃 - 催化剂接触的可能性。 高度污染的碳氢化合物比普通碳氢化合物引起更多的焦化,并且该FCC方法和装置可能有效地减少这种重质烃上的立管焦化。