Method for regenerating an alkylation catalyst
    1.
    发明授权
    Method for regenerating an alkylation catalyst 有权
    烷基化催化剂再生方法

    公开(公告)号:US06413897B1

    公开(公告)日:2002-07-02

    申请号:US09528977

    申请日:2000-03-21

    Abstract: Disclosed is an alkylation process which utilizes a catalyst containing hydrogen fluoride, and, optionally, a volatility reducing additive, as an alkylation catalyst. The process provides for the regeneration of an alkylation catalyst having ASO, and, optionally, a volatility reducing additive, therein by separating HF from the ASO and the optional volatility reducing additive components using an upwardly flowing gas containing an isoparaffin and/or an olefin. Where a volatility reducing additive is used, the ASO and volatility reducing additive are thereafter separated to provide a volatility reducing additive which is substantially free of ASO.

    Abstract translation: 公开了使用含有氟化氢的催化剂和任选的挥发性降低添加剂作为烷基化催化剂的烷基化方法。 该方法通过使用含有异链烷烃和/或烯烃的向上流动的气体,通过从ASO中分离HF和任选的挥发性降低添加剂组分来提供具有ASO和任选的挥发性降低添加剂的烷基化催化剂的再生。 当使用挥发性降低添加剂时,随后分离ASO和挥发性降低添加剂,以提供基本上不含ASO的挥发性降低添加剂。

    Process for the regeneration of zeolitic catalysts containing titanium
    2.
    发明授权
    Process for the regeneration of zeolitic catalysts containing titanium 有权
    含钛的沸石催化剂再生方法

    公开(公告)号:US06403514B1

    公开(公告)日:2002-06-11

    申请号:US09690732

    申请日:2000-10-18

    CPC classification number: B01J29/90 B01J29/89

    Abstract: A process is described for regenerating exhausted zeolitic catalysts containing titanium and deriving from oxidation processes of organic substrates with hydrogen peroxide. Said process consists in carrying out a treatment in an aqueous medium with hydrogen peroxide in the presence of inorganic fluorinated compounds, subsequent to thermal treatment of the exhausted catalyst.

    Abstract translation: 描述了一种用于再生含有钛的耗尽的沸石催化剂并由有机底物氧化过程产生的过氧化氢的方法。 所述方法在于在无机氟化物的存在下,在热处理耗尽的催化剂之后,在含水介质中用过氧化氢进行处理。

    Palladium catalyst pre-oxidation to reduce light-off temperature
    3.
    发明授权
    Palladium catalyst pre-oxidation to reduce light-off temperature 失效
    钯催化剂预氧化以降低起燃温度

    公开(公告)号:US06187709B1

    公开(公告)日:2001-02-13

    申请号:US08550476

    申请日:1995-10-30

    Abstract: The invention is a method for preconditioning a palladium containing automotive catalyst by subjecting the catalyst to oxidation by means of an oxidizing gas containing at least 0.85% oxygen at a temperature of at least 450° C. preferably for at least 15 seconds. This oxidation can be carried out before or after engine shutdown. The catalyst is placed in the exhaust system in a location whereby the catalyst attains this temperature during steady state warm-up operation of the engine.

    Abstract translation: 本发明是一种通过在至少450℃的温度下通过含有至少0.85%的氧的氧化气体氧化催化剂来预处理含钯汽车催化剂的方法,优选至少15秒。 这种氧化可以在发动机关闭之前或之后进行。 将催化剂置于排气系统中,使得催化剂在发动机的稳态预热操作期间达到该温度。

    Polymer blends and process for preparation
    4.
    发明授权
    Polymer blends and process for preparation 失效
    聚合物共混物和制备方法

    公开(公告)号:US06177377B1

    公开(公告)日:2001-01-23

    申请号:US08768664

    申请日:1996-12-18

    Abstract: This invention relates to polymer blends and the process for preparing naturally compatibilized polyolefin blends using a “one-pot” polymerization of a single monomer, whereby two homopolymers having different structures are produced as well as a third block copolymer having alternating sequences of the two structural segments of the two homopolymers. The formation of the block copolymer is established by solvent extraction and 13C-NMR spectroscopy. The catalyst compositions enabling the direct synthesis of naturally compatibilized polymer blend is prepared by combining four components. The first two components are organometallic complexes of Group IVB or VIIIB elements. The third component is a cocatalyst which irreversibly reacts with at least one ligand on the transition metal complexes. The fourth component is a hydrocarbyl or oxyhydrocarbyl compound of Group IIIA metals, which functions as a cross-over agent.

    Abstract translation: 本发明涉及聚合物共混物和使用单一单体的“一锅”聚合制备天然相容的聚烯烃共混物的方法,由此产生具有不同结构的两种均聚物以及具有两个结构的交替序列的第三嵌段共聚物 两个均聚物的片段。 嵌段共聚物的形成是通过溶剂萃取和13 C-NMR光谱法建立的。 通过组合四种组分制备能够直接合成天然相容的聚合物共混物的催化剂组合物。 前两个组分是IVB或VIIIB族元素的有机金属络合物。 第三组分是与过渡金属络合物上的至少一个配体不可逆地反应的助催化剂。 第四组分是用作交叉剂的IIIA族金属的烃基或氧代烃基化合物。

    Method of regenerating a molecular sieve catalyst
    7.
    发明授权
    Method of regenerating a molecular sieve catalyst 失效
    再生分子筛催化剂的方法

    公开(公告)号:US06383965B1

    公开(公告)日:2002-05-07

    申请号:US09508158

    申请日:2000-05-12

    Applicant: Hengbo Xu

    Inventor: Hengbo Xu

    CPC classification number: B01J29/90

    Abstract: A process for regenerating spent molecular sieve catalysts from a fluidized catalytic cracking unit in an oil refinery with high temperature flue gas from a second group of cyclones with the spent catalyst in a first riser regenerator to form a mixture of a half-regenerated catalyst and flue gas, separating the half-regenerated catalyst from the mixture formed in the previous step in a first group of cyclones, mixing the half-regenerated catalyst from the first group of cyclones with a sufficient amount of air for burning off coke on the spent catalyst in a second riser regenerator to form a mixture of high-temperature flue gas and a regenerator catalyst, separating the regenerated catalyst formed from the preceding step from the mixture in the second group of cyclones and recovering the surplus heat from the regenerated catalyst from the second group of cyclones by a regenerated catalyst cooler.

    Abstract translation: 一种从炼油厂中的流化催化裂化装置再生废分子筛催化剂的方法,其中第二组旋风分离器的高温烟道气与废催化剂在第一提升管再生器中形成半再生催化剂和烟道的混合物 气体,将半再生催化剂与前述步骤中形成的混合物分离在第一组旋风分离器中,将来自第一组旋风分离器的半再生催化剂与足够量的空气混合以将废催化剂上的焦炭烧掉 第二提升管再生器以形成高温烟道气和再生器​​催化剂的混合物,将由前述步骤形成的再生催化剂与第二组旋风分离器中的混合物分离,并从第二组中回收再生催化剂的剩余热量 的再生催化剂冷却器。

    Method for pretreating a catalyst material
    8.
    发明授权
    Method for pretreating a catalyst material 失效
    预处理催化剂材料的方法

    公开(公告)号:US06355589B1

    公开(公告)日:2002-03-12

    申请号:US09600399

    申请日:2000-09-13

    Abstract: A process for pretreating a catalyst material for catalysing a chemical reaction in a reactor, in particular for a reforming catalyst material for catalysing a methanol reforming reaction to obtain hydrogen, includes (1) subjecting the catalyst material to a hydrogen-containing gas mixture in a forming step, and (2) subsequently subjecting the catalyst material to an oxygen-containing gas mixture in a deactivating step.

    Abstract translation: 用于预处理用于催化反应器中的化学反应的催化剂材料的方法,特别是用于催化甲醇重整反应以获得氢的重整催化剂材料的方法包括(1)将催化剂材料经受含氢气体混合物 以及(2)随后在去活化步骤中使催化剂材料经受含氧气体混合物。

    Catalytic reforming catalyst activation
    9.
    发明授权
    Catalytic reforming catalyst activation 失效
    催化重整催化剂活化

    公开(公告)号:US06291381B1

    公开(公告)日:2001-09-18

    申请号:US09343376

    申请日:1999-06-30

    Abstract: Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with a sustained hydrogen flow through the multiple reactor system while introducing a nonmetallic chlorine-containing compound serially into each reactor of the multiple reactor system in an amount to add from about 0.05 to about 0.3 weight percent chlorine to the catalyst and thereafter purging the system with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of catalyst prior to commencing use of the treated catalyst system for reforming hydrocarbon feed.

    Abstract translation: 催化剂活化多重反应器系统中包含的铂重整催化剂体系,通过同时将持续的氢气流通过多反应器系统还原催化剂,同时将非金属含氯化合物连续引入多反应器系统的每个反应器中, 向催化剂中加入约0.05至约0.3重量%的氯,然后在开始使用经处理的催化剂体系用于重整烃进料之前,用约100至约50,000立方英尺的氢/立方英尺催化剂清洗系统。

    Process for the regeneration of used silica gel
    10.
    发明授权
    Process for the regeneration of used silica gel 失效
    二氧化硅凝胶再生方法

    公开(公告)号:US06248683B1

    公开(公告)日:2001-06-19

    申请号:US09287374

    申请日:1999-04-07

    Abstract: The present invention is concerned a process for the regeneration of the spent silica gel used in chromatography and for any other kind of silica. The process comprises 5 main steps, namely: washing with an extractant of organic compounds and removing volatile organic materials remaining thereafter; oxidation to oxidize organic compounds remaining and, preferably, bleach the material; washing with an acid to remove soluble inorganic matter; heating to dry the material and combust any remaining organic compounds present; and recovering the regenerated material. Various optional steps can be added to the process.

    Abstract translation: 本发明涉及用于色谱法和任何其它种类二氧化硅的废硅胶再生方法。 该方法包括5个主要步骤,即:用有机化合物的萃取剂洗涤并除去其余的挥发性有机物质;氧化以氧化剩余的有机化合物,优选漂白材料;用酸洗涤以除去可溶性无机物质;加热至 干燥材料并燃烧存在的任何剩余的有机化合物; 并重新生成再生材料。可以在过程中添加各种可选步骤。

Patent Agency Ranking