会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • FCC process with improved yield of light olefins
    • FCC工艺,提高了轻质烯烃的产率
    • US07312370B2
    • 2007-12-25
    • US10316222
    • 2002-12-10
    • Rusty M. PittmanLawrence L. Upson
    • Rusty M. PittmanLawrence L. Upson
    • C07C4/06C10G11/02
    • C07C4/06C10G11/05C10G11/18
    • An FCC process for obtaining light olefins comprises contacting a hydrocarbon feed stream with blended catalyst comprising regenerated catalyst and coked catalyst. The catalyst has a composition including a first component and a second component. The second component comprises a zeolite with no greater than medium pore size wherein the zeolite comprises at least 1 wt-% of the catalyst composition. The contacting occurs in a riser to crack hydrocarbons in the feed stream and obtain a cracked stream containing hydrocarbon products including light olefins and coked catalyst. The cracked stream is passed out of an end of the riser such that the hydrocarbon feed stream is in contact with the blended catalyst in the riser for less than or equal to 2 seconds on average. The hydrocarbon products including light olefins are separated from the coked catalyst. The first portion of the coked catalyst is passed to a regeneration zone in which coke is combusted from the catalyst to produce a regenerated catalyst. A second portion of the coked catalyst is blended with the regenerated catalyst and introduced to the riser. The regenerated catalyst has substantially the same relative proportions of the first component and the second component as the blended catalyst that contact the hydrocarbon feed stream.
    • 用于获得轻质烯烃的FCC方法包括使烃进料流与包含再生催化剂和焦化催化剂的混合催化剂接触。 催化剂具有包含第一组分和第二组分的组合物。 第二组分包括不大于中等孔径的沸石,其中沸石包含至少1重量%的催化剂组合物。 接触发生在提升管中以在进料流中裂解烃,并获得含有烃产物(包括轻质烯烃和焦化催化剂)的裂化物流。 裂化的物流从提升管的一端流出,使得烃进料流在提升管中与混合的催化剂平均接触平均小于或等于2秒。 包含轻质烯烃的烃产物与焦化催化剂分离。 焦化催化剂的第一部分被送入再生区,在该再生区中焦炭从催化剂燃烧,以产生再生催化剂。 将焦炭催化剂的第二部分与再生催化剂混合并引入提升管。 再生催化剂与第一组分和第二组分的相对比例与作为与烃进料流接触的共混催化剂基本相同。