Process for the preparation of agglomerated zeolites X and LSX exchanged with lithium
    1.
    发明授权
    Process for the preparation of agglomerated zeolites X and LSX exchanged with lithium 失效
    用于与锂交换的附聚沸石X和LSX的制备方法

    公开(公告)号:US06649556B2

    公开(公告)日:2003-11-18

    申请号:US09897117

    申请日:2001-07-03

    Abstract: Process for preparing zeolites of X type having an Si/Al atomic ratio of ≦1.5 and having exchangeable cations including lithium, trivalent and/or divalent ions, and optionally sodium, potassium, ammonium and/or hydronium ions, involves distributing starting zeolite in a series of receptacles, percolating a solution of at least one lithium compound through the series, drawing a lithium-containing bleed from first receptacle of the carrousel, and drawing off a final effluent stream from a final receptacle in the series. The effluent stream contains compounds of exchangeable cations from the starting zeolite and traces of the lithium compound(s). After a desired degree of lithium exchange has occurred in the first receptacle, the first receptacle is removed and a fresh solution of at least one lithium compound is introduced into the next receptable in the series and percolated through the series. This step can be performed for each receptacle in the series.

    Abstract translation: 具有Si / Al原子比<= 1.5且具有可交换阳离子,包括锂,三价和/或二价离子以及任选的钠,钾,铵和/或水合氢离子的X型沸石的方法涉及将起始沸石分配在 一系列容器,渗透通过该系列的至少一种锂化合物的溶液,从转盘的第一容器中抽出含锂的液体,并从该系列中的最终容器中抽出最终的流出物流。 流出物流含有起始沸石和痕量的锂化合物的可交换阳离子化合物。 在第一容器中发生所需程度的锂交换之后,移除第一容器,并将至少一种锂化合物的新鲜溶液引入到下一个可接收的串联中并通过该系列进行渗滤。 可以对系列中的每个插座执行此步骤。

    FCC catalysts for feeds containing nickel and vanadium
    2.
    发明授权
    FCC catalysts for feeds containing nickel and vanadium 有权
    用于含镍和钒的饲料的FCC催化剂

    公开(公告)号:US06673235B2

    公开(公告)日:2004-01-06

    申请号:US10164488

    申请日:2002-06-06

    Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and a particular kaolin which has been calcined through its characteristic exotherm and which produces a catalyst having a novel morphology comprising a macroporous matrix and crystallized zeolite freely coating the walls of the pores of the matrix. Calcination of the hydrous kaolin to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.

    Abstract translation: 由微球制成的流化催化裂化催化剂,其最初含有高岭土,可分散勃姆石氧化铝和硅酸钠或硅溶胶粘结剂。 高岭土部分含有含水高岭土和通过其特征放热煅烧的特定高岭土,并且其产生具有新颖形态的催化剂,其具有包含大孔基质和自由涂覆基质孔壁的结晶沸石。 通过用硅酸钠处理将含水高岭土煅烧成偏高岭土并形成原位沸石,产生含有Y型八面沸石的催化剂,并将可分散的勃姆石转化为过渡型氧化铝。 该催化剂可用于裂解残渣或渣油进料,因为由可分散勃姆石形成的氧化铝相钝化镍和钒污染物。

    Combination sulphur adsorbent and hydrogenation catalyst for edible oils
    3.
    发明授权
    Combination sulphur adsorbent and hydrogenation catalyst for edible oils 失效
    组合硫磺吸附剂和食用油加氢催化剂

    公开(公告)号:US06391815B1

    公开(公告)日:2002-05-21

    申请号:US09483884

    申请日:2000-01-18

    Abstract: An improved catalyst for edible oil hydrogenation produced by the incorporation of a sulphur adsorbing zeolite with a supported nickel hydrogenation catalyst. The zeolite is a cation-exchanged form of low silica faujasite with a silica to alumina ratio from about 1.8 to 2.1. The hydrogenation catalyst is a supported nickel catalyst. The zeolite is incorporated into the stabilization media with the reduced hydrogenation catalyst to form a physical blend of sulphur adsorbing zeolite and reduced nickel hydrogenation catalyst in a stabilization medium.

    Abstract translation: 通过将硫吸附沸石与负载的镍氢化催化剂并入而产生的改进的食用油氢化催化剂。 沸石是阳离子交换形式的低二氧化硅八面沸石,二氧化硅与氧化铝的比例为约1.8至2.1。 氢化催化剂是负载型镍催化剂。 沸石通过还原加氢催化剂掺入到稳定介质中,以在稳定介质中形成硫吸附沸石和还原镍氢化催化剂的物理共混物。

    Process for the preparation of a catalyst composite
    5.
    发明授权
    Process for the preparation of a catalyst composite 有权
    制备催化剂复合材料的方法

    公开(公告)号:US06528447B1

    公开(公告)日:2003-03-04

    申请号:US09272305

    申请日:1999-03-19

    CPC classification number: B01J37/0045 B01J21/12 B01J29/084 C10G11/05

    Abstract: A process for preparing a hydrocarbon conversion catalyst for use in a Fluid Catalyst Cracking (FCC) unit includes the steps of preparing a modified alumina-silica composite by reacting alumina with an acid to obtain an acidified alumina, aging the acidified alumina for from 0.25 to 60 hours, adding a silica source to the acidified alumina to obtain the composite; preparing a dispersed precursor slurry of the modified alumina-silica composite, and a rare earth exchanged USY zeolite (REUSY) containing at least one rare earth oxide present in an amount ranging from 3.8 to 4.0 wt %, and optionally kaolin clay; spray-drying the slurry to obtain spherical particles; and subjecting the spherical particles to calcination.

    Abstract translation: 制备用于流化催化剂裂化(FCC)单元的烃转化催化剂的方法包括以下步骤:通过使氧化铝与酸反应以制备改性的氧化铝 - 二氧化硅复合物,以获得酸化的氧化铝,将酸化氧化铝老化0.25至 60小时,向酸化的氧化铝中加入二氧化硅源,得到复合材料; 制备改性氧化铝 - 二氧化硅复合材料的分散的前体浆液和含有至少一种以3.8-4.0重量%的量存在的稀土氧化物的稀土交换的USY沸石(REUSY),以及任选的高岭土; 喷雾干燥该浆料以获得球形颗粒; 并对球形颗粒进行煅烧。

    Process for manufacturing particles of X zeolite exchanged with metal cations
    6.
    发明授权
    Process for manufacturing particles of X zeolite exchanged with metal cations 失效
    用于制造与金属阳离子交换的X沸石颗粒的方法

    公开(公告)号:US06274528B1

    公开(公告)日:2001-08-14

    申请号:US09379319

    申请日:1999-08-23

    CPC classification number: B01J20/186 B01D53/02 B01D2253/108

    Abstract: A process for manufacturing particles of type X zeolite exchanged with at least lithium cations and having an Si/Al ratio less than or equal to 1.5, in which (a) at least one mother liquor containing lithium salts having a molar purity in excess of 95% is percolated through a bed of zeolite particles, the mother liquor making it possible to obtain a limit exchange factor (LEF) for the zeolite particles of between 90 and 100%, (b) the percolation of the mother liquor is stopped when an amount of mother liquor has been used which makes it possible to obtain a mean real exchange factor (REF) such that: REF=LEF−2%±1%; and (c) the lithium-exchanged zeolite particles are recovered. The particles of faujasite, preferably X, zeolite exchanged to at least 88% with lithium cations and having an Si/Al ratio less than or equal to 1.5 which are obtained by such a manufacturing process can be used as adsorbent in a PSA, preferably VSA, process for separating or purifying a gas flow.

    Abstract translation: 制造X型沸石的颗粒至少与锂阳离子交换并且Si / Al比小于或等于1.5的方法,其中(a)至少一种含有摩尔纯度超过95的锂盐的母液 %通过沸石颗粒床进行渗透,母液可以获得90-100%的沸石颗粒的极限交换因子(LEF),(b)如果母液的渗透量为 已经使用了母液,使得可以获得平均实际交换因子(REF),使得:REF = LEF-2%±1%; 和(c)回收锂交换的沸石颗粒。 可以使用通过这种制造方法获得的八面沸石,优选X沸石与锂阳离子交换至至少88%的具有小于或等于1.5的Si / Al比的颗粒,作为PSA中的吸附剂,优选VSA 用于分离或净化气流的方法。

    FCC catalysts for feeds containing nickel and vanadium
    7.
    发明授权
    FCC catalysts for feeds containing nickel and vanadium 有权
    用于含镍和钒的饲料的FCC催化剂

    公开(公告)号:US06716338B2

    公开(公告)日:2004-04-06

    申请号:US10190992

    申请日:2002-07-08

    Abstract: A fluid catalytic cracking catalyst made from microspheres that initially contain kaolin, a dispersible boehmite alumina and a sodium silicate or silica sol binder. The kaolin portion contains hydrous kaolin and optionally spinel, or mullite, or both spinel and mullite made via kaolin which has been calcined through its characteristic exotherm. Calcination of the hydrous clay to metakaolin and formation of in-situ zeolite by treatment with sodium silicate yields a catalyst containing Y-faujasite and transforms the dispersible boehmite into a transitional alumina. The catalyst can be used to crack resid or resid-containing feeds as the alumina phase formed from the dispersible boehmite passivates nickel and vanadium contaminants.

    Abstract translation: 由微球制成的流化催化裂化催化剂,其最初含有高岭土,可分散勃姆石氧化铝和硅酸钠或硅溶胶粘结剂。 高岭土部分含有水合高岭土和任选的尖晶石或莫来石,或通过其特征放热煅烧的高岭土制成的尖晶石和莫来石两者。 通过用硅酸钠处理将含水粘土煅烧成偏高岭土并形成原位沸石产生含有Y型八面沸石的催化剂,并将可分散的勃姆石转变为过渡型氧化铝。 该催化剂可用于裂解残渣或渣油进料,因为由可分散勃姆石形成的氧化铝相钝化镍和钒污染物。

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