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    • 9. 发明授权
    • Process for regenerating a spent resid hydroprocessing catalyst using a
group IIA metal
    • 使用IIA族金属再生废渣加氢处理催化剂的方法
    • US5275990A
    • 1994-01-04
    • US955496
    • 1992-10-02
    • Frederick T. ClarkAlbert L. Hensley, Jr.
    • Frederick T. ClarkAlbert L. Hensley, Jr.
    • B01J23/94B01J38/20C10G49/12B01J20/20B01J38/34C10G45/16
    • B01J23/94B01J38/20C10G49/12Y10S502/521
    • A method is provided for regenerating a molecular sieve-free resid hydroprocessing catalyst for use with an ebullated bed reaction process comprising at least one hydrogenation metal and at least one Group IIA metal deposited on an inorganic oxide support wherein the catalyst contains a pore volume of pores having a diameter greater than 1200 Angstroms of at least 0.05 cc/gm. The method comprises the steps of contacting the molecular sieve-free resid hydroprocessing catalyst with a contaminant metal-containing hydrocarbon feedstream in a first contacting step at conditions sufficient to deposit contaminant metals and coke onto the catalyst; and contacting the coke-deactivated, contaminant metal-containing, molecular sieve-free catalyst with an oxygen-containing gas in a second contacting step at oxidation conditions sufficient to remove a substantial amount of the coke from the coke-deactivated, contaminant metal-containing, molecular sieve-free catalyst. The loss on attrition of the regenerated molecular sieve-free resid hydroprocessing catalyst after the second contacting step is less than 10 weight percent fines per day calculated based on a regeneration temperature of about 900.degree. F.
    • 提供了一种用于再生无分子筛余渣加氢催化剂的方法,该催化剂与沸腾床反应方法一起使用,该方法包括至少一种氢化金属和沉积在无机氧化物载体上的至少一种IIA族金属,其中催化剂含有孔体积的孔 直径大于1200埃至少为0.05cc / gm。 该方法包括以下步骤:在足以将污染金属和焦炭沉积到催化剂上的条件下,在第一接触步骤中使无分子筛的残渣加氢处理催化剂与含污染金属的烃进料流接触; 并在第二接触步骤中使氧化条件下使含焦炭失活的含金属的不含分子筛的催化剂与含氧气体接触,所述氧化条件足以从焦炭失活的含杂质金属中除去大量的焦炭 ,无分子筛的催化剂。 基于再生温度约900华氏度,在第二次接触步骤之后再生的不含分子筛的残渣加氢处理催化剂的磨损损失小于每天10重量%的细粉。