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    • 7. 发明授权
    • Production of fluid catalytic cracking catalysts
    • 流化催化裂化催化剂的生产
    • US4443553A
    • 1984-04-17
    • US420439
    • 1982-09-20
    • Robert L. ChiangJulius Scherzer
    • Robert L. ChiangJulius Scherzer
    • B01J29/08B01J29/06
    • B01J29/084
    • In the process of preparing fluid catalytic cracking catalysts where an aqueous slurry, containing a zeolite, or zeolites, an alumina-containing binder, a clay and a silica source, is subjected to drying to form essentially water-free solid catalyst particles, the viscosity of the aqueous slurry can be significantly reduced by incorporation of a small but effective amount of [Al.sub.2 (OH).sub.6-y Cl.sub.y ].sub.x additive. Due to this decrease in viscosity, the solids content of the slurry can be raised until the original, additive-free viscosity level, is reached, which, in turn, results in increased solids throughput rate in the drying step with corresponding savings of thermal energy and improved catalyst production efficiency.
    • 在制备流体催化裂化催化剂的过程中,其中含有沸石或沸石,含氧化铝的粘合剂,粘土和二氧化硅源的含水浆料经受干燥以形成基本上无水的固体催化剂颗粒,粘度 的含水浆料可以通过加入少量但有效量的[Al 2(OH)6-yCly] x添加剂而显着降低。 由于这种粘度降低,可以提高浆料的固体含量,直到达到原始的无添加剂粘度水平,这反过来又导致干燥步骤中固体产量的增加速度提高,同时节省了热能 并提高催化剂生产效率。
    • 10. 发明授权
    • Process for the catalytic cracking of metals-containing feedstocks
    • 含金属原料的催化裂化方法
    • US4588496A
    • 1986-05-13
    • US688567
    • 1985-01-03
    • Julius Scherzer
    • Julius Scherzer
    • C10G11/05
    • C10G11/05
    • Hydrocarbon feedstocks containing relatively high levels of metal contaminants, such as nickel and vanadium, are converted via catalytic cracking into products of lower average molecular weight by contacting the feedstock with a catalyst comprising a (1) porous, inorganic refractory oxide component and (2) a dealuminated Y zeolite having a silica-to-alumina mole ratio above about 6.0. The dealuminated Y zeolite is preferably prepared by contacting an ammonium-exchanged Y zeolite having a silica-to-alumina mole ratio below about 6.0 with an aqueous solution of ammonium hexafluorosilicate. The refractory oxide component will preferably contain alumina and a clay such as kaolin. The catalyst may also contain a nondealuminated Y zeolite, preferably one that has been ion exchanged with rare earth cations. Typically, the hydrocarbon feedstock will contain contaminant metals in sufficient quantities such that their concentration exceeds about 4.0 ppmw Nickel Equivalents.
    • 通过使原料与包含(1)多孔无机耐火氧化物组分的催化剂接触,和(2)含有(1)多孔无机耐火氧化物组分的催化剂,通过催化裂解将含有相对高含量的金属污染物如镍和钒的烃原料转化为较低的平均分子量的产物, 二氧化硅 - 氧化铝摩尔比高于约6.0的脱铝Y沸石。 脱铝Y沸石优选通过使二氧化硅 - 氧化铝摩尔比低于约6.0的铵交换的Y沸石与六氟硅酸铵水溶液接触来制备。 难熔氧化物组分优选含有氧化铝和粘土如高岭土。 催化剂还可以含有未发射的Y沸石,优选与稀土离子交换的Y沸石。 通常,烃原料将含有足够量的污染金属,使得其浓度超过约4.0ppmw镍当量。