Rare earth zeolite Y and the preparation process thereof
    1.
    发明申请
    Rare earth zeolite Y and the preparation process thereof 有权
    稀土沸石Y及其制备方法

    公开(公告)号:US20030064881A1

    公开(公告)日:2003-04-03

    申请号:US10132911

    申请日:2002-04-26

    IPC分类号: B01J029/08

    摘要: The present invention discloses a high stability rare earth zeolite Y with high rare earth and the preparation process thereof, which zeolite has a content of rare earth of 4-15 wt %, a unit cell constant of 2.450-2.458 nm, a differential thermal collapsed temperature of 1000-1056null C., a silica to alumina ratio of 8.3-8.8, and a content of sodium oxide less than 1.0 wt %. Said zeolite is prepared by drying a rare earth-containing zeolite Y, introducing gaseous silicon tetrachloride carried by dry air and reacting at a temperature of 150-600null C. for 10 min to 6 h. then purging with dry air and washing with de-cationized water to remove the soluble by-products. The rare earth zeolite Y possesses high activity and selectivity for cracking the heavy oils, high activity for hydrogen transfer, has good coke selectivity, can effectively increase the yield of light oils, and improve the quality of gasoline and thus can directly serve as an active component for preparing various hydrocarbon cracking catalysts.

    摘要翻译: 本发明公开了一种具有高稀土的高稳定性稀土沸石Y及其制备方法,该沸石的稀土含量为4-15重量%,单位晶胞常数为2.450-2.458纳米,差热分解 温度为1000-1056℃,二氧化硅与氧化铝之比为8.3-8.8,氧化钠含量小于1.0重量%。 所述沸石是通过干燥含稀土的沸石Y,引入由干燥空气携带的气态四氯化硅,并在150-600℃的温度下反应10分钟至6小时。 然后用干燥空气吹扫并用去离子水洗涤以除去可溶性副产物。 稀土沸石Y具有高重力油裂解活性和选择性,氢转移活性高,焦炭选择性好,可有效提高轻油产率,提高汽油质量,可直接作为活性物质 制备各种烃裂解催化剂的组分。

    Process for manufacture of zeolites and zeolite mixtures having enhanced cation exchange properties, products produced thereby, and detergent compositions formulated therewith
    2.
    发明申请
    Process for manufacture of zeolites and zeolite mixtures having enhanced cation exchange properties, products produced thereby, and detergent compositions formulated therewith 有权
    制备具有增强的阳离子交换性能的沸石和沸石混合物的方法,由此生产的产物和与其配制的洗涤剂组合物

    公开(公告)号:US20010053741A1

    公开(公告)日:2001-12-20

    申请号:US09810914

    申请日:2001-03-16

    IPC分类号: B01J029/08 C01B039/14

    摘要: A zeolite A or an A/X mixture having an LCC>70 g liquid/100 g zeolite (hydrated) and a cold water CER>200 mg CaCO3/gram anhydrous zeolite (hydrated). The zeolite product may have a crystal size of 0.1-0.7 microns, a bulk density of 0.19-0.37 g/ml, and a median particle size of 1-5 microns. A process for making zeolite A or A/X mixtures is also claimed, including mixing a sodium silicate solution, a sodium aluminate solution, and an amorphous aluminosilicate initiator gel in a mixing vessel to create an aluminosilicate synthesis gel, and crystallizing the aluminosilicate synthesis gel to form zeolite crystals. The sodium aluminate solution may be added gradually to at least the sodium silicate solution at a rate of about 1-5% of the total batch alumina per minute, and/or a percentage of the total batch alumina may be added as alumina trihydrate (ATH) powder. The amount of total batch alumina added as an undissolved source of soluble alumina and the presence or absence of initiator or nullseednull gel determines whether the resulting zeolite product is an A/X mixture or only zeolite A. A process to augment the yield of a synthesis mixture is also claimed, comprising providing undissolved alumina in substantial excess of stoichiometric requirements in a primary crystallization step, yielding a slurry of crystalline zeolite A in an alumina-enriched mother liquor, and then adding soluble silicate to initiate a second stage of very rapid crystallization. Detergents containing zeolites of this invention are claimed.

    摘要翻译: 具有LCC> 70g液体/ 100g沸石(水合)和冷水CER> 200mg CaCO 3 /克无水沸石(水合)的沸石A或A / X混合物。 沸石产物可以具有0.1-0.7微米的晶体尺寸,体积密度为0.19-0.37g / ml,中值粒度为1-5微米。 还要求一种制备沸石A或A / X混合物的方法,包括在混合容器中混合硅酸钠溶液,铝酸钠溶液和无定形硅铝酸盐引发剂凝胶,以产生硅铝酸盐合成凝胶,并结晶硅铝酸盐合成凝胶 以形成沸石晶体。 铝酸钠溶液可以以每分钟总批式氧化铝的约1-5%的速率逐渐加入到至少硅酸钠溶液中,和/或可以加入总分批氧化铝的百分比作为三水合氧化铝(ATH )粉。 作为未溶解的可溶性氧化铝来源的总批量氧化铝的量以及引发剂或“种子”凝胶的存在或不存在决定了所得的沸石产物是A / X混合物还是只有沸石A.一种增加产率的方法 还要求保护合成混合物,其包括在初级结晶步骤中提供基本过量的化学计量要求的未溶解的氧化铝,在富含氧化铝的母液中产生结晶沸石A的浆液,然后加入可溶性硅酸盐以引发非常 快速结晶。 要求保护含有本发明沸石的洗涤剂。

    Gasoline sulfur reduction catalyst for fluid catalytic cracking process
    4.
    发明申请
    Gasoline sulfur reduction catalyst for fluid catalytic cracking process 有权
    用于流化催化裂化过程的汽油硫还原催化剂

    公开(公告)号:US20020179492A1

    公开(公告)日:2002-12-05

    申请号:US09833601

    申请日:2001-04-13

    摘要: The present invention is directed to certain catalyst compositions and processes that are capable of reducing sulfur compounds normally found as part of the gasoline fraction streams of fluid catalytic cracking processes. The present invention requires an equilibrium cracking catalyst composition comprises at least one Y-type zeolite having kinetic conversion activity of at least about 3 in combination with a Lewis acid containing alumina composite present in at least 50 weight percent of the composition. The resultant equilibrium catalyst composition has a kinetic conversion activity of at least about 2.

    摘要翻译: 本发明涉及某些催化剂组合物和方法,其能够减少通常作为流化催化裂化方法的汽油馏分流的一部分发现的硫化合物。 本发明需要一种平衡裂化催化剂组合物,其包含至少一种具有至少约3的动力学转化活性的Y型沸石与存在于该组合物的至少50重量%中的含有路易斯酸的氧化铝复合材料。 所得的平衡催化剂组合物具有至少约2的动力学转化活性。

    Composite adsorbents for purifying hydrocarbon streams
    5.
    发明申请
    Composite adsorbents for purifying hydrocarbon streams 有权
    用于净化烃流的复合吸附剂

    公开(公告)号:US20020147377A1

    公开(公告)日:2002-10-10

    申请号:US09733693

    申请日:2000-12-08

    IPC分类号: C07C007/144 B01J029/08

    摘要: Applicant has developed an improved adsorbent useful in removing contaminants from various hydrocarbon streams. The adsorbent contains a zeolite, an alumina and a metal component. The metal component (Madd) is present in an amount at least 10 mole % the stoichiometric amount of metal (M) (expressed as the oxide) needed to balance the negative charge of the zeolite lattice. In a specific application an adsorbent comprising zeolite X, alumina and sodium is used to purify an ethylene stream in order to remove CO2, H2S, methanol, and other Snull and Onull containing compounds.

    摘要翻译: 申请人开发了一种改进的吸附剂,用于从各种烃流中去除污染物。 吸附剂含有沸石,氧化铝和金属组分。 金属组分(Madd)以平衡沸石晶格的负电荷所需的金属(M)(表示为氧化物)的化学计量量的至少10摩尔%的量存在。 在具体应用中,使用包含沸石X,氧化铝和钠的吸附剂来净化乙烯流以除去CO 2,H 2 S,甲醇和其它含S-和O-的化合物。

    Molecular sieve with enhanced performance in air separation
    6.
    发明申请
    Molecular sieve with enhanced performance in air separation 审中-公开
    分子筛在空气分离中具有增强的性能

    公开(公告)号:US20040248727A1

    公开(公告)日:2004-12-09

    申请号:US10457807

    申请日:2003-06-09

    IPC分类号: B01J029/08

    摘要: A molecular sieve is made by reacting an ammonium-exchanged low silica X-type zeolite precursor with lithium hydroxide, at a pressure of about 200 millibar or less, and at a temperature of about 60null or less. The zeolite precursor is preferably an X-type zeolite, in which the silicon to aluminum atomic ratio is less than about 1.02. The lithium is provided in an amount which is stoichiometrically equivalent to the amount of ammonium present. The molecular sieve is especially useful in separating air into components using PSA or VPSA processes, and has improved productivity and yield as compared with materials of the prior art. The advantages of the molecular sieve enable it to be provided in the form of beads having relatively large diameter, which reduces the pressure drop across the adsorber bed, and reduces required energy consumption.

    摘要翻译: 分子筛通过铵交换的低二氧化硅X型沸石前体与氢氧化锂在约200毫巴或更低的压力和约60℃或更低的温度下反应制备。 沸石前体优选为X型沸石,其中硅与铝的原子比小于约1.02。 提供的锂的量以化学计量等同于存在的铵的量。 分子筛特别适用于使用PSA或VPSA方法将空气分离成组分,并且与现有技术的材料相比具有提高的生产率和产率。 分子筛的优点使其能够以具有相对较大直径的珠的形式提供,这降低了吸附床上的压降,并且降低了所需的能量消耗。

    FCC catalysts for feeds containing nickel and vanadium
    8.
    发明申请
    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:US20030136707A1

    公开(公告)日:2003-07-24

    申请号:US10164488

    申请日:2002-06-06

    摘要: 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.

    摘要翻译: 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。