Reactor for catalyst preparation
    11.
    发明授权
    Reactor for catalyst preparation 失效
    催化剂制备反应器

    公开(公告)号:US3790349A

    公开(公告)日:1974-02-05

    申请号:US3790349D

    申请日:1970-09-04

    Applicant: ANDREICHEV P

    Inventor: ANDREICHEV P

    Abstract: A reactor for catalyst preparation by treating a granular stock material with a reducing gas which comprises a reaction chamber made as a vertical tube whose cross-section is reduced in the direction of the stock material flow, a chamber for drying and thermally treating the stock material, a chamber for cooling the catalyst, and a chamber for passivating the catalyst. The reactor is provided with preheating and heat-exchange devices. The reactor construction allows the drying, reduction, cooling, and passivation of the catalyst to be carried out in one apparatus by a continuous method.

    Abstract translation: 一种用于还原气体处理颗粒原料的催化剂制备用反应器,该还原气体包括:反应室,其形成为在原料流动方向上截面减小的垂直管,用于干燥和热处理原料的室 ,用于冷却催化剂的室和用于钝化催化剂的室。 反应器设有预热和热交换装置。 反应器结构允许催化剂的干燥,还原,冷却和钝化在一个装置中通过连续方法进行。

    Four-step procedure for regenerating a catalyst containing platinum,rhenium and halogen
    12.
    发明授权
    Four-step procedure for regenerating a catalyst containing platinum,rhenium and halogen 失效
    用于再生含有铂,铑和卤素的催化剂的四步骤

    公开(公告)号:US3785996A

    公开(公告)日:1974-01-15

    申请号:US3785996D

    申请日:1971-08-26

    Inventor: HAYES J

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

    Abstract: A DEACTIVATED HYDROCARBON CONVERSION CATALYST, WHICH IS A COMBINATION OF A PLATINUM GROUP COMPONENT, A RHENIUM COMPONENT, AND HALOGEN COMPONENT WITH A POROUS CARRIER MATERIAL AND WHICH HAS BEEN DEACTIVATED BY 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: (A) BURNING CARBON THEREFROM AT RELATIVELY LOW TEMPERATURE WITH A SUBSTANTIALLY SULFUR COMPOUND-FREE GAS STREAM CONTAINING H2O AND A RELATIVELY SMALL AMOUNT OF O2, (B) TREATING THE RESULTING PARTIALLY REGENERATED CATALYST AT A RELATIVELY HIGHER TEMPERATURE WITH A SUBSTANTIALLY SULFUR COMPOUND-FREE GAS STREAM CONTAINING A HALOGEN OR A HALOGEN-CONTAINING COMPOUND, H2O AND A RELATIVELY HIGHER AMOUNT OF O2, (C) PURGING O2 AND H2O FROM CONTACT WITH THE RESULTING CATALYST, AND (D) SUBJECTING THE RESULTING CATALYST TO CONTACT WITH A DRY AND SULFUR COMPOUND-FREE HYDROGEN STREAM. KEY FEATURES OF THE DISCLOSED METHOD ARE: (1) PRESENCE OF WATER IN THE GAS STREAMS USED IN ALL STEPS EXCEPT THE REDUCTION STEP; (2) CAREFUL CONTROL OF THE TEMPERATURE USED DURING EACH STEP; (3) ADJUSTMENT OF THE HALOGEN CONTENT OF THE CATALYST IMMEDIATELY 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.

    Simplified regeneration procedure
    13.
    发明授权
    Simplified regeneration procedure 失效
    简化再生程序

    公开(公告)号:US4046673A

    公开(公告)日:1977-09-06

    申请号:US613242

    申请日:1975-09-15

    CPC classification number: C10G35/09 B01J23/96 B01J37/24

    Abstract: Supported iridium-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by contacting the residue-containing catalyst, prior to contact with oxygen at elevated temperature, with a chlorine-containing reagent to increase the catalyst chlorine content to a level in the range of from about 0.7 to 2.0 wt. %, based on anhydrous, carbonaceous residue-free catalyst, and thereafter contacting the catalyst with a substantially sulfur-free gaseous mixture containing oxygen at a temperature varying from about 775.degree. to 900.degree. F. for a time sufficient to burn at least a portion of the carbonaceous residue from the catalyst while maintaining at least 0.7 wt. % chlorine on the catalyst during contact with said gaseous mixture.

    Abstract translation: 通过在与烃接触期间由于其上的碳质残渣沉积而至少部分失活的支持的含铱烃转化催化剂通过在与升高的温度下与氧接触之前使含残留物的催化剂与含氯试剂 以将催化剂氯含量增加至约0.7-2.0重量%的范围内。 %,基于无水,不含碳质的无残余物的催化剂,然后使催化剂与含氧的基本上不含硫的气体混合物在约775-900°F的温度下接触一段足以燃烧至少一部分的时间 的来自催化剂的碳质残余物,同时保持至少0.7wt。 在与所述气体混合物接触期间催化剂上的氯%。

    Catalyst regeneration procedure
    14.
    发明授权
    Catalyst regeneration procedure 失效
    催化剂再生程序

    公开(公告)号:US3939062A

    公开(公告)日:1976-02-17

    申请号:US388746

    申请日:1973-08-16

    CPC classification number: B01J23/96 B01J37/24 C10G35/09

    Abstract: Supported iridium-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by contacting the catalyst, prior to contact with oxygen at elevated temperature, with a chlorine-containing reagent to increase the catalyst chlorine content to at least 1.0 wt. %, based on anhydrous catalyst, and thereafter contacting the catalyst with a gaseous mixture containing oxygen, a chlorine containing reagent, and water at a temperature of about 750.degree. to 1000.degree.F. for a time sufficient to burn at least a portion of the carbonaceous residues from the catalyst.

    Abstract translation: 由于在与烃接触期间由于其上的碳质残渣沉积而至少部分失活的支持的含铱烃转化催化剂通过使催化剂在与升高的温度下与氧接触之前与含氯试剂接触来再生,以增加 催化剂氯含量至少为1.0wt。 %,基于无水催化剂,然后在约750℃至1000°F的温度下将催化剂与含有氧,含氯试剂和水的气体混合物接触足够的时间,以至少部分燃烧 来自催化剂的碳质残渣。

    Four-step procedure for regenerating a carbon-containing deactivated bimetallic acidic catalyst
    15.
    发明授权
    Four-step procedure for regenerating a carbon-containing deactivated bimetallic acidic catalyst 失效
    再生含碳失活双金属酸性催化剂的四步法

    公开(公告)号:US3898173A

    公开(公告)日:1975-08-05

    申请号:US40287273

    申请日:1973-10-02

    Inventor: HAYES JOHN C

    CPC classification number: C10G49/06 B01J23/96 B01J37/22 C10G35/09

    Abstract: A deactivated hydrocarbon conversion catalyst, which is a combination of catalytically effective amounts 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 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: (a) burning carbon therefrom at a relatively low temperature with a substantially sulfur compound-free gas stream containing H2O and a relatively small amount of O2; (b) treating the resulting partially regenerated catalyst at a relatively higher temperature with a substantially sulfur compound-free gas stream containing a halogen or a halogen-containing compound, H2O and a relatively higher amount of O2; (c) purging O2 and H2O from contact with the resulting catalyst; and, (d) subjecting the resulting catalyst to contact with a dry and sulfur compound-free hydrogen stream. Key features of the disclosed method are: (1) presence of water in the gas stream used in all steps except the reduction step; (2) careful control of the temperature used during each step; (3) adjustment of the halogen content of the catalyst immediately 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.

    Abstract translation: 失活的烃转化催化剂,其是催化有效量的铂族组分,IVA族金属组分和具有多孔载体材料的卤素组分的组合,并且其在先前接触期间通过在其上沉积碳质材料而失活 通过以下顺序的步骤来再生:(a)在相对较低的温度下用基本上不含硫化合物的含H 2 O和相对少量O 2的气流从其中燃烧碳; (b)在相对较高的温度下用基本上不含硫化合物的含有卤素或含卤化合物的H 2 O和相对较高量的O 2的气流处理所得到的部分再生催化剂; (c)吹扫O 2和H 2 O与所得催化剂接触; 和(d)使得到的催化剂与干燥和无硫化合物的氢气流接触。 所公开方法的主要特征是:(1)在除了还原步骤之外的所有步骤中使用的气流中存在水; (2)仔细控制每一步中使用的温度; (3)在碳燃烧步骤之后和还原步骤之前立即调节催化剂的卤素含量; (4)仔细控制在其各个步骤中使用的气流的组成; 和(5)从所使用的所有气流排除硫化合物。

    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

    Inventor: HAYES J

    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.

    Rejuvenation of damaged zeolitesupported metal catalysts
    17.
    发明授权
    Rejuvenation of damaged zeolitesupported metal catalysts 失效
    损伤的沸石催化的金属催化剂的研究

    公开(公告)号:US3692692A

    公开(公告)日:1972-09-19

    申请号:US3692692D

    申请日:1970-10-29

    Applicant: UNION OIL CO

    CPC classification number: C10G47/16 B01J29/90

    Abstract: SILICEOUS ZEOLITE CATALYSTS COMPRISING ZEOLITE MONOAND/OR DIVALENT METAL CATIONS AND A NON-ZEOLITIC GROUP VIII METAL HYDROGENATING COMPONENT SUPPORTED THEREON, WHICH CATALYSTS HAVE UNDERGONE DAMAGE BY THERMAL AND/ OR HYDROTHERMAL STRESSES RESULTING IN A MALDISTRIBUTION OF THE METAL COMPONENTS, ARE REJUVENATED IN ACTIVITY BY A SEQUENTIAL TREATMENT WITH AN AQUEOUS AMMONIUM SALT TO EXCHANGE OUT AT LEAST A PORTION OF 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-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

    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.

    Protective products for treating fresh concrete or mortar to prevent
excessive evaporation, process for preparing such products, and treated
fresh concrete or mortar
    20.
    发明授权
    Protective products for treating fresh concrete or mortar to prevent excessive evaporation, process for preparing such products, and treated fresh concrete or mortar 失效
    用于处理新鲜混凝土或砂浆以防止过度蒸发的保护产品,制备此类产品的处理,以及处理的新鲜混凝土或砂浆

    公开(公告)号:US4656005A

    公开(公告)日:1987-04-07

    申请号:US798160

    申请日:1985-11-15

    Applicant: Rene Arpin

    Inventor: Rene Arpin

    CPC classification number: C04B40/04

    Abstract: A protective product for treating fresh concrete or mortar. The products are a mixture of (a) an aqueous dispersion A of a film-forming synthetic polymer (the synthetic polymer is compatible with fresh concrete or mortar) having little or no permeability to water vapor with (b) at least one coagulant for the film-forming synthetic polymer when in the presence of calcium ions. The coagulant is introduced in the form of an aqueous or aqueous alcoholic solution and/or by means of an aqueous wax emulsion and/or by means of an aqueous dispersion B of a synthetic polymer which is slightly permeable or impermeable to water. The aqueous dispersion B is prepared by polymerization in the presence of the coagulant. When applied by spraying to the surface of fresh mortar, the products form a continuous waterproof film, which is readily removed by peeling.

    Abstract translation: 一种用于处理新鲜混凝土或砂浆的保护产品。 产品是(a)成膜合成聚合物(合成聚合物与新鲜混凝土或砂浆相容的水分散体A)与水蒸汽渗透性很小或不相关的混合物,(b)至少一种用于 当存在钙离子时,成膜合成聚合物。 凝结剂以含水或水性醇溶液的形式和/或通过水性蜡乳液和/或通过水分散体B的水分散体B引入,所述水性分散体B是水可以渗透或不渗透的。 水分散体B通过在凝结剂存在下进行聚合来制备。 当通过喷涂施加到新鲜砂浆表面时,产品形成连续的防水膜,通过剥离容易地除去。

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