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    Hydrocracking process with rejuvenated catalyst
    14.
    发明授权
    Hydrocracking process with rejuvenated catalyst 失效
    具有反应催化剂的水解工艺

    公开(公告)号：US3835028A

    公开(公告)日：1974-09-10

    申请号：US27971272

    申请日：1972-08-10

    Applicant: UNION OIL CO

    Inventor： WARD J ,  CLARK D

    IPC: B01J29/90 ,  C10G47/16 ,  C10G13/02 ,  B01J11/02

    CPC classification number: C10G47/16 ,  B01J29/90 ,  Y10S208/02

    Abstract: SILICEOUS ZEOLITE CATALYST COMPRISING ZEOLITIC MONOAND/OR DIVALENT METAL CATIONS AND A NON-ZEOLITIC GROU VIII METAL HYDROGENATING COMPONENT SUPPORTED THEREON, WBICH CATALYSTS HAVE UNDERGONE DAMAGE BY THERMAL AND/ OR HYDROTHERMAL STRESSES RESULTING IN THE MALDISTRIBUTION OF THE METAL COMPONENTS, ARE REJUVENTATED IN ACTIVATIVE BY A SEQUENTIAL TREATMENT WITH AN AQUEOUS AMMONIUM SALT TO EXCNANGE OUT AT LEAST A PORTION O THE ZEOLITIC MONOAND/OR DIVALENT METAL IONS, AND WITH AQUEOUS AMMONIA TO EFFECT A REDISTRIBUTION OF THE GROUP VIII METAL. THE TREATMENTS MAY BE PERFORMED IN EITHER ORDER.

    Regeneration of platinum-germanium reforming catalyst
    15.
    发明授权
    Regeneration of platinum-germanium reforming catalyst 失效
    铂 - 锗改性催化剂的再生

    公开(公告)号：US3776840A

    公开(公告)日：1973-12-04

    申请号：US3776840D

    申请日：1971-12-16

    Applicant: SHELL OIL CO

    Inventor： MORAVEC V ,  MEERBOTT W

    IPC: B01J23/96 ,  B01J37/22 ,  C10G35/09 ,  B01J11/02 ,  B01J11/80 ,  C10G35/06

    CPC classification number: B01J23/96 ,  B01J37/22 ,  C10G35/09

    Abstract: THE ACTIVITY AND STABILITY OF A DEACTIVATED REFORMING CATALYST CONTAINING A PLATINUM GROUP METAL AND GERMANIUM ARE RESTORED TO THAT OF FRESH CATALYST BY (1) REMOVING SUBSTANTIALLY ALL CARBON FROM THE CATALYST; (2) CONTACTING THE CATALYST AT ABOUT 900*F. WITH A NONREDUCING GAS CONTAINING HALOGEN, STEAM AND OXYGEN UNTIL ABOUT 85% W. OF THE DESIRED HALIDE CONTENT IS ADDED; (3) DISCONTINUING THE USE OF STREAM AND OXYGEN FROM THE LASTMENTIONED STEP UNTIL THE HALOGENATION IS COMPLETED; AND (4) DRYING AND REDUCING THE CATALYST WITH A HYDROGENCONTAINING GAS; THEN REUSING THE CATALYST IN A REFORMING PROCESS. PEFERABLY, THE CATALYST IS HLOGENATED TO A LEVEL ABOUT 20% GREATER THAN THAT OF FRESH CATALYST. IT IS ALSO PREFERRED THAT THE CATALYST THEN BE DRIED WITH A NONREDUCING GAS AT ABOUT 900*F. UNTIL THE WATER CONTENT IN THE EXIT GAS IS BELOW 150 P.P.M.V. FOLLOWED BY REDUCING AT LEAST THE PLATINUM OXIDES OR CHLORIDES BY CONTACT WITH A HYDROGEN-CONTAINING GAS AT 700-900*F. THE REGENERATION PROCEDURE IS EPECIALLY APPLICABLE TO PLATINUM-GERMANIUM CATALYSTS USED IN HIGH SEVERITYFULLY-REGENERATIVE REFORMING PROCESSES.

    Six-step regeneration procedure for a cokedeactivated bimetallic platinum group-group iv a catalyst
    16.
    发明授权
    Six-step regeneration procedure for a cokedeactivated bimetallic platinum group-group iv a catalyst 失效
    合成双金属铂族四元组IV催化剂的六步再生方法

    公开(公告)号：US3773686A

    公开(公告)日：1973-11-20

    申请号：US3773686D

    申请日：1971-09-09

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： HAYES J

    IPC: B01J23/96 ,  B01J38/44 ,  C10G35/09 ,  C10G49/06 ,  B01J11/02 ,  B01J11/18

    CPC classification number: C10G49/06 ,  B01J23/96 ,  B01J38/44 ,  C10G35/09

    Abstract: A deactivated hydrocarbon conversion catalyst, which is a combination of a platinum group component, a group IVA metallic component, and a halogen component with a porous carrier material and which has been deactivated by a deposition of carbonaceous materials thereon during a previous contacting with a hydrocarbon charge stock at an elevated temperature, is regenerated by the sequential steps of: (1) burning carbon therefrom at a relatively low temperature with a gas stream containing H2O and a small amount of O2, (2) treating with a gas stream containing H2O and a small amount of O2 at a relatively high temperature, (3) treating with a gas stream containing H2O and a large amount of O2 at the relatively high temperature, (4) treating with a gas stream containing halogen or a halogen-containing compound and water, (5) purging O2 and H2O from the resulting catalyst and (6) reducing with a dry hydrogen stream. Key features of the resulting method are: (1) presence of water in the gas streams used in all steps except the purging and reduction steps, (2) careful control of the inlet temperature used during each step, (3) adjustment of halogen content of the catalyst after the carbon-burning step and prior to the reduction step, (4) careful control over the composition of the gas streams used in the various steps thereof and (5) exclusion of sulfur compounds from all gas streams utilized.

    Regeneration of platinum-rhenium reforming catalyst
    18.
    发明授权
    Regeneration of platinum-rhenium reforming catalyst 失效
    铑 - 铑改性催化剂的再生

    公开(公告)号：US3654142A

    公开(公告)日：1972-04-04

    申请号：US3654142D

    申请日：1970-07-29

    Applicant: VINCENT J MORAVEC JR ,  WILLIAM K MEERBOTT

    Inventor： MORAVEC VINCENT J JR ,  MEERBOTT WILLIAM K

    IPC: B01J23/96 ,  B01J11/02 ,  B01J11/18 ,  C10G35/06

    CPC classification number: B01J23/96

    Abstract: THE ACTIVITY AND STABILITY OF A DEACTIVATED REFORMING CATALYST CONTAINING A PLATINUM GROUP METAL AND RHENIUM ARE RESTORED TO THAT OF FRESH CATALYST BY (1) REMOVING SUBSTANTIALLY ALL CARBON FROM THE CATALYST; (2) CONTACTING THE CATALYST AT ABOUT 900* F. WITH A NON-REDUCING GAS CONTAINING HALOGEN, STEAM AND OXYGEN UNTIL ABOUT 85% WT. OF THE DESIRED HALIDE CONTENT IS ADDED; (3) DISCONTINUING THE USE OF STEAM AND OXYGEN FROM THE LAST-MENTIONED STEP UNTIL THE HALOGENATION IS COMPLETED; AND (4) DRYING AND REDUCING THE CATALYST WITH A HYDROGEN-CONTAINING GAS; THEN REUSING THE CATALYST IN A REFORMING PROCESS. PREFERABLY, THE CATALYST IS HALOGENATED TO A LEVEL ABOUT 20% GREATER THEN THAT OF FRESH CATALYST. IT IS ALSO PREFERRED THAT THE CATALYST THEN BE DRIED WITH A NON-REDUCING GAS AT ABOUT 900* F. UNTIL THE WATER CONTENT IN THE EXIT GAS IS BELOW 150 P.P.M.V. FOLLOWED BY REDUCING THE METALLIC OXIDES BY CONTACT WITH A HYDROGEN-CONTAINING GAS AT 700-900* F.

    Regeneration of unsupported vanadium sulfide catalyst
    19.
    发明授权
    Regeneration of unsupported vanadium sulfide catalyst 失效
    不加反应的硫酸锌催化剂的再生

    公开(公告)号：US3635838A

    公开(公告)日：1972-01-18

    申请号：US3635838D

    申请日：1970-02-02

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： GATSIS JOHN G

    IPC: B01J27/04 ,  C10G45/16 ,  B01J11/76 ,  B01J11/02

    CPC classification number: C10G45/16 ,  B01J27/04 ,  Y10S502/516 ,  Y10S502/518

    Abstract: A carbonized, unsupported nonstoichiometric vanadium sulfide catalyst is regenerated by way of a three-stage treatment at elevated temperatures. In the first stage, carbon is removed from the catalyst by contacting with elemental sulfur at an elevated temperature in the range of about 500* to about 1,000* C. The substantially carbon-free catalyst is treated with a mineral acid, or anhydrous HF, to dissolve metallic contaminants, and further treated in a third stage with elemental sulfur at a temperature in the range of 300* to about 500* C. to form vanadium tetrasulfide.

    Abstract translation: 碳化的，未负载的非化学计量的硫化钒催化剂在升高的温度下通过三级处理再生。 在第一阶段，通过在约500℃至约1000℃的升高的温度下与元素硫接触从催化剂中除去碳。基本上不含碳的催化剂用无机酸或无水HF处理， 以溶解金属污染物，并在第三阶段用元素硫进一步处理，温度范围为300-约500℃，形成四硫化钒。

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