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    Hydrocarbon conversion process
    33.
    发明授权
    Hydrocarbon conversion process 失效
    烃转化过程

    公开(公告)号：US4018670A

    公开(公告)日：1977-04-19

    申请号：US493126

    申请日：1974-07-30

    Applicant: John H. Sinfelt ,  Allan E. Barnett

    Inventor： John H. Sinfelt ,  Allan E. Barnett

    IPC: B01J23/40 ,  B01J23/46 ,  B01J23/50 ,  B01J23/89 ,  B01J23/96 ,  B01J35/10 ,  B01J37/24 ,  C10G35/09 ,  C10G35/08 ,  B01J11/18

    CPC classification number: B01J35/10 ,  B01J23/468 ,  B01J23/50 ,  B01J23/8926 ,  B01J23/96 ,  B01J37/24 ,  C10G35/09 ,  B01J23/40 ,  B01J35/1019

    Abstract: Hydrocarbon materials are converted to useful products by contacting the same at elevated temperatures with a catalyst comprising a refractory support in association with greater than 0.1 wt. % iridium, and 0.1 - 1.0 wt. % of at least one additional metal. The iridium and additional catalyst metal, preferably platinum, are present on the surface of the support preferably as highly dispersed polymetallic clusters with metal surface areas of at least 200 square meters per gram of metal. The catalyst is particularly effective for promoting naphtha reforming operations.

    Abstract translation: 碳氢化合物材料通过在升高的温度下与含有大于0.1重量％的耐火载体的催化剂接触而转化为有用的产物。 ％铱，和0.1〜1.0wt。 至少一种额外金属的％。 铱和另外的催化剂金属，优选铂，优选地作为高度分散的多金属簇存在于载体的表面上，金属表面积为至少200平方米/克金属。 催化剂对于促进石脑油重整操作特别有效。

    Regeneration of a coke-deactivated bimetallic catalyst
    35.
    发明授权
    Regeneration of a coke-deactivated bimetallic catalyst 失效
    焦炭活化二元催化剂的再生

    公开(公告)号：US3751379A

    公开(公告)日：1973-08-07

    申请号：US3751379D

    申请日：1971-04-12

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： HAYES J

    IPC: B01J23/96 ,  B01J37/22 ,  C10G35/09 ,  B01J11/18 ,  C10G35/06

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

    Abstract: A DEACTIVATED HYDROCARBON CONVERSION CATALYST, WHICH IS A COMBINATION OF A PLATINUM GROUP COMPONENT, A GROUP IV-A METALLIC COMPONENT, AND A HALOGEN COMPONENT WITH A POROUS CARRIER MATERIAL AND WHICH HAS BEEN DEACTIVATED BY DEPOSITION OF CARBONACEOUS MATERIALS THEREON DURING A PREVIOUSLY 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 HALOGEN OR A HALOGEN-CONTAINING COMPOUND, H2O, AND A RELATIVELY SMALL AMOUNT OF O2, (2) TREATING THE RESULTING PARTIALLY REGENERATED CATALYST AT A RELATIVELY HIGHER TEMPERATURE WITH A GAS STREAM CONTAINING A HALOGEN OR A HALOGEN-CONTAINING COMPOUND, H2O, AND A RELATIVELY HIGHER AMOUNT OF O2, (3) PURGING O2 AND H2O FROM CONTACT WITH THE RESULTING CATALYST, AND (4) SUBJECTING THE RESULTING CATALYST TO CONTACT WITH A SUBSTANTIALLY SULFUR-FREE HYDROGEN STREAM AT REDUCTION CONDITIONS. KEY FEATURES OF THE DISCLOSED METHOD ARE: (1) PRESENCE OF WATER AND HALOGEN IN THE GAS STREAM USED IN THE CARBON-BURNING STEP AND IN THE OXYGEN-TREATING STEP, (2) CAREFUL CONTROL OF THE TEMPERATURE DURING EACH STEP, (3) MAINTENANCE OF THE HALOGEN CONTENT OF THE CATALYST AT A RELATIVELY HIGH LEVEL DURING THE ENTIRE REGENERATION PROCEDURE, AND (4) CAREFUL CONTROL OVER THE COMPOSITION OF THE GAS STREAMS USED IN THE VARIOUS STEPS THEREOF.

    Crucible apparatus for a semiconductor crystal puller
    37.
    发明授权
    Crucible apparatus for a semiconductor crystal puller 失效
    半导体水晶推杆的可控装置

    公开(公告)号：US3694165A

    公开(公告)日：1972-09-26

    申请号：US3694165D

    申请日：1970-08-11

    Applicant: MONSANTO CO

    Inventor： KRAMER HORST G

    IPC: C30B15/14 ,  B01J11/18

    CPC classification number: C30B15/14 ,  Y10S117/90 ,  Y10T117/1068

    Abstract: CRUCIBLE APPARATUS FOR A SEMICONDUCTOR CRYSTAL PULLER AND INCLUDING A MAIN CRUCIBLE FOR HOUSING A MOLTEN CHARGE OF SEMICONDUCTOR MATERIAL TO BE PULLED. A HOLLOW CRUCIBLE BASE OR SUPPORT MEMBER IS MOUNTED BETWEEN THE MAIN CRUCIBLE AND AN ELONGATED CRUCIBLE SUPPORT PEDESTAL, AND A PORTION OF THE MAIN CRUCIBLE BOTTOM IS SUSPENDED IN THE CRUCIBLE BASE MEMBER TO REDUCE CONDUCTIVE HEAT LOSSES THEREFROM. THE CRUCIBLE BASE MEMBER SHILEDS HEAT RADIATED FROM THE MAIN CRUCIBLE AND COUPLES INTO THE RF HEATER COIL THEREOF TO EVEN FURTHER REDUCE HEAT LOSSES FROM THE MAIN CRUCIBLE. THE CRUCIBLE BASE MEMBER THUS MINIMIZES TEMPERATURE GRADIENTS IN THE MAIN CRUCIBLE AND THEREBY ELIMINATES AN UNDERSIRABLE COOLING OF THE MOLTEN SEMICONDUCTOR MATERIAL DURING A CRYSTAL PULLING OPERATION.

    In situ regeneration and resulfiding of a platinum- and sulfur-containing catalyst in a hydrocarbon conversion plant containing metallic sulfide scale
    40.
    发明授权
    In situ regeneration and resulfiding of a platinum- and sulfur-containing catalyst in a hydrocarbon conversion plant containing metallic sulfide scale 失效
    在包含金属硫化物尺度的油气转化装置中的含铂和硫含量催化剂的原位再生和再结晶

    公开(公告)号：US3660308A

    公开(公告)日：1972-05-02

    申请号：US3660308D

    申请日：1970-03-12

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： HAYES JOHN C

    IPC: B01J23/96 ,  C10G35/085 ,  B01J11/02 ,  B01J11/18 ,  C10G35/08

    CPC classification number: C10G35/085 ,  B01J23/96

    Abstract: A DEACTIVATED HYDROCARBON CONVERSION CATALYST, COMPRISING A COMBINATION OF A PLATINUM GROUP COMPONENT, A HALOGEN COMPONENT AND A SULFUR COMPONENT WITH A POROUS CARRIER MATERIAL, IS REGENERATED AND RESULFIDED IN SITU IN A HYDROCARBON CONVERSION PLANT THAT CONTAINS METALLIC SULFIDE SCALE BY THE STEPS OF: (A) STRIPPING SULFUR FROM THE CATALYST WITH A HYDROGEN STREAM AT CONDITIONS INCLUDING A TEMPERATURE OF ABOUT 600-800*F., EFFECTIVE TO REMOVE SULFUR FROM THE CATALYST WHILE NOT SUBSTANTIALLY AFFECTING THE METALLIC SULFIDE SCALE (B) PURGING HYDROGEN FROM THE PLANT (C) BURNING CARBON FROM THE CATALYST AT RELATIVELY LOW SEVERITY CONDITIONS, INCLUDING AN INLET TEMPERATURE OF ABOUT 650-850*F. (D) PURGING OXYGEN FROM THE PLANT (E) CIRCULATING A SULFUR-FREE HYDROGEN STREAM THROUGH THE PLANT AND INTO CONTACT WITH THE RESULTING OXIDIZED CATALYST AT CONDITIONS INCLUDING A TEMPERATURE OF ABOUT 600-800 F., SELECTED TO REDUCE THE RESULTING OXIDIZED CATALYST WITHOUT REDUCING THE METALLIC SULFIDE SCALE; AND THEREAFTER (F) INCREASING THE TEMPERATURE OF THE CIRCULATING HYDROGEN STREAM TO A LEVEL SELECTED FROM THE RANGE OF ABOUT 1000-1100*F. TO REDUCE AT LEAST A PART OF THE METALLIC SULFIDE SCALE TO HYDROGEN SULFIDE AND CONTINUING THE CIRCULATION OF THE RESULTING STREAM FOR AT LEAST ONE HOUR, THEREBY RESULFIDING THE CATALYST.

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