利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

86 条记录 (耗时 0.035 秒)

    Cracking catalyst
    24.
    发明授权
    Cracking catalyst 失效
    开裂催化剂

    公开(公告)号：US4235754A

    公开(公告)日：1980-11-25

    申请号：US66215

    申请日：1979-08-10

    申请人： Arthur W. Chester

    发明人： Arthur W. Chester

    IPC分类号： B01J29/12 ,  B01J37/04 ,  C10G11/04 ,  C10G11/05 ,  B01J29/16

    CPC分类号： C10G11/05 ,  B01J29/126 ,  B01J37/04 ,  C10G11/04

    摘要： A metal combustion promoter is introduced to the circulating inventory of catalyst in a catalytic cracking unit as a mixture of particles rich in metal with particles free of metal such that the net concentration of metal in the mixture is about 1 to 10 ppm. According to a preferred embodiment the particles rich in metal contain about 50 ppm of platinum, iridium, osmium, palladium, rhodium, ruthenium or rhenium. When such mixtures are supplied to the circulating inventory, it is found that specific activity of the metal is enhanced in the sense that activity of the mixture for oxidation of carbon monoxide is higher than that of catalyst in which an equal amount of metal is evenly distributed among all the particles.

    摘要翻译： 在催化裂化装置中将金属助燃剂引入催化裂化装置的循环库存中，作为富含金属的颗粒与不含金属的颗粒的混合物，使得混合物中金属的净浓度为约1至10ppm。 根据优选实施方案，富含金属的颗粒含有约50ppm的铂，铱，锇，钯，铑，钌或铼。 当将这种混合物供应到循环库存中时，发现在一氧化碳氧化的混合物的活性高于其中等量的金属均匀分布的催化剂的活性的情况下，金属的比活性增强 在所有颗粒中。

    Gasoline sulfur reduction in fluid catalytic cracking
    25.
    发明授权
    Gasoline sulfur reduction in fluid catalytic cracking 有权
    汽油硫化液流化催化裂化

    公开(公告)号：US07803267B2

    公开(公告)日：2010-09-28

    申请号：US11118541

    申请日：2005-04-29

    申请人： Arthur W. Chester ,  Terry G. Roberie ,  Hye Kyung C. Timken ,  Michael S. Ziebarth

    发明人： Arthur W. Chester ,  Terry G. Roberie ,  Hye Kyung C. Timken ,  Michael S. Ziebarth

    IPC分类号： C10G11/05

    CPC分类号： B01J29/076 ,  B01J29/072 ,  B01J29/166 ,  B01J2229/42 ,  C10G11/05

    摘要： The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.

    摘要翻译： 通过使用包含多孔分子筛的硫还原催化剂组合物来减少液体裂解产物，特别是裂化汽油的硫含量，所述硫还原催化剂组合物在孔内部含有高于零的氧化态的金属 筛子的结构以及提高催化剂的稳定性和硫还原活性的铈组分。 分子筛通常是诸如USY的八面沸石。 初级硫还原组分通常是元素周期3的金属，优选为钒。 硫还原催化剂可以以单独的颗粒添加剂的形式使用，也可以作为综合的裂解/硫还原催化剂的组分使用。