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    Method for stabilizing pyrophoric materials in a catalyst bed
    25.
    发明授权
    Method for stabilizing pyrophoric materials in a catalyst bed 失效
    用于稳定催化床中的磷酸盐材料的方法

    公开(公告)号：US3838066A

    公开(公告)日：1974-09-24

    申请号：US18583971

    申请日：1971-10-01

    Applicant: STANDARD OIL CO

    Inventor： LOVELL L

    IPC: B01J37/14 ,  C10G49/02 ,  C10G49/04 ,  B01J11/04 ,  B01J11/30 ,  B01J11/76

    CPC classification number: C10G49/02 ,  B01J37/14 ,  C10G49/04

    Abstract: THE METHOD COMPRISES THE SQUENTIALY STEPS OF (1) PASSING AN INERT GAS THROUGH THE CATALYST BED AT A BED TEMPERATURE THAT IS BELOW THE INGNITION TEMPERATUTE OF COKE AND ANY ADDITIONAL NON-PUROPHORIC MATERIAL IN THE BED; AND (2) ADDING A CONTROLLED AMOUNT OF OSYGEN-CONTAINING GAS TO THE INERT GAS TO OXIDIZE THE PYROPHORIC MATERIAL. PREFERABLY, THE METHOD COMPRISES AN ADDITIONAL STEP OF MAINTAINING THE OXYGEN PARTIAL PRESSURE AT ABOUT 0.3 TO 1 ATMOSPHERE OF OXYGEN FOR A TIME THAT IS SUFFICIENT TO ELIMINATE ANY TEMPERATURE RISE THAT MAY OCCUR IN THE BED WHEN THE AMOUNT OF OXYGEN-CONTAINING GAS IS INCREASED.

    Oxidative fluidized regeneration of petroleum conversion catalyst in separate dilute and dense phase zones
    28.
    发明授权
    Oxidative fluidized regeneration of petroleum conversion catalyst in separate dilute and dense phase zones 失效
    石油转化催化剂在单独稀释和渗透相区的氧化还原再生

    公开(公告)号：US3661799A

    公开(公告)日：1972-05-09

    申请号：US3661799D

    申请日：1970-01-26

    Applicant: STANDARD OIL CO

    Inventor： CARTMELL ROBERT R

    IPC: B01J8/18 ,  B01J8/28 ,  C10G11/18 ,  B01J11/04 ,  B01J11/74

    CPC classification number: B01J8/28 ,  B01J8/1863 ,  C10G11/182

    Abstract: CATALYTIC CONVERSION OF PETROLEUM FEEDSTOCKS, SUCH AS THE CRACKING OF A GAS OIL IN A VERTICAL TRANSPORT REACTOR, IS IMPROVED BY EFFECTING RAPID SEPARATION OF CATALYST FROM REACTOR EFFLUENT AND REGENERATING CATALYST IN A MULTI-STAGE FLUID-BED SYSTEM. A HIGHER YIELD OF DESIRABLE PETROLEUM PRODUCTS AND A LOWER CARBON LEVEL ON SPENT CATALYST ARE REALIZED. PARTIAL REGENERATION OF SPENT CATALYST IS EFFECTED IN A FIRST DILUTE-PHASE REGENERATION STAGE, PERMITTING SUBSEQUENT USE OF A HIGH REGENERATION TEMPERATURE IN ORDER TO REACH AN ACCEPTABLY LOW CARBON LEVEL ON REGENERATED CATALYST WITHOUT HARM TO SENSITIVE CONVERSION CATALYSTS.

    Regeneration of a coke-deactivated catalyst containing platinum and rhenium
    29.
    发明授权
    Regeneration of a coke-deactivated catalyst containing platinum and rhenium 失效
    含有白金和铑的焦炭去除催化剂的再生

    公开(公告)号：US3642656A

    公开(公告)日：1972-02-15

    申请号：US3642656D

    申请日：1969-10-16

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： HAYES JOHN C

    IPC: B01J23/96 ,  C10G35/09 ,  C10G49/06 ,  B01J11/18 ,  B01J11/04

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

    Abstract: A DEACTIVATED HYDROCARBON CONVERSION CATALYST-WHICH IS A COMBINATION OF A PLATINUM GROUP COMPONENT, A RHENIUM COMPONENT, A HALOGEN COMPONENT AND A SULFUR COMPONENT WITH AN ALUMIA CARRIER MATERIAL, WHICH CONTAINS THE PLATINUM GROUP COMPONENT AND THE RHENIUM COMPONENT IN AMOUNTS SUFFICIENT TO RESULT IN THE ATOMIC RATIO OF PLATINUM GROUP METAL TO REHNIUM METAL BEING GREATER THAN 1:1 AND WHICH HAS BEEN DEACTIVATED BY DEPOSITION OF CARBONACEOUS MATERIALS THEREON DURING A PREVIOUS CONTACTING WITH A HYDROCARBON CHARGE STOCK AT HYDROCARBON CONVERSION CONDITIONS-IS REGENERATED BY THE SEQUENTIAL STEPS OF: (A) STRIPPING SULFUR THEREFROM AT A RELATIVELY HIGH TEMPERATURE WITH A SUBSTANTIALLY SULFURFREE HYDROGEN STREAM; (B) PRUGING HYDROGEN FROM CONTACT WITH THE CATALYST; (C) BURNING COKE FROM THE RESULTING CATALYST AT REALTIVELY LOW TEMPERATURES WITH A SUBSTANTIALLY SULFUR-FREE GAS STREAM CONTAINING A REALTIVELY SMALL AMOUNT OF O2; (D) TREATING THE RESULTING SUBSTANTIALLY CARBON-FREE CATALYST WITH OXYGEN AT A RELATIVELY HIGH TEMPERATURE; (E) PURGING OXYGEN AND WATER FROM CONTACT WITH THE CATALYST WITH AN INERT GAS STREAM; AND (F) REDUCING THE RESULTING CATLAYST BY CONTACTING SAME WITH A SUBSTANTIALLY SULFUR-FREE AND WATER-FREE HYDROGEN STREAM AT AN ELEVATED TEMPERATURE.

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