Process for producing polypropylene from C3 olefins selectively produced by a two stage fluid catalytic cracking process
    13.
    发明授权
    Process for producing polypropylene from C3 olefins selectively produced by a two stage fluid catalytic cracking process 失效
    通过两阶段流化催化裂化方法选择性生产的C3烯烃生产聚丙烯的方法

    公开(公告)号:US06258257B1

    公开(公告)日:2001-07-10

    申请号:US09517551

    申请日:2000-03-02

    IPC分类号: C10G5102

    CPC分类号: C10G57/02 C10G2400/20

    摘要: A process for producing polymers from olefins selectively produced by a two stage process for selectively producing C2 to C4 olefins from a gas oil or resid is disclosed herein. The gas oil or resid is reacted in a first stage comprising a fluid catalytic cracking unit wherein it is converted in the presence of conventional large pore zeolitic catalyst to reaction products, including a naphtha boiling range stream. The naphtha boiling range stream is introduced into a second stage comprising a process unit containing a reaction zone, a stripping zone, a catalyst regeneration zone, and a fractionation zone. The naphtha feed is contacted in the reaction zone with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures ranging from about 500 to 650° C. and a hydrocarbon partial pressure from about 10 to 40 psia. Vapor products are collected overhead and the catalyst particles are passed through the stripping zone on the way to the catalyst regeneration zone. Volatiles are stripped with steam in the stripping zone and the catalyst particles are sent to the catalyst regeneration zone where coke is burned from the catalyst, which is then recycled to the reaction zone.

    摘要翻译: 本文公开了一种通过二级方法选择性制备聚合物的方法,用于从瓦斯油或渣油中选择性地生产C2至C4烯烃。 瓦斯油或渣油在包括流化催化裂化装置的第一阶段中反应,其中在常规大孔沸石催化剂存在下将其转化为包括石脑油沸程的反应产物。 将石脑油沸程流引入包含含有反应区,汽提区,催化剂再生区和分馏区的处理单元的第二阶段。 石脑油进料在反应区中与含有约10至50wt。 在包括约500至650℃的温度和约10至40psia的烃分压的反应条件下具有平均孔径小于约0.7纳米的结晶沸石的百分比。 蒸气产物被顶部收集,催化剂颗粒在通向催化剂再生区的途中通过汽提区。 挥发物在汽提区中用蒸汽汽提,并将催化剂颗粒送入催化剂再生区,其中焦炭从催化剂燃烧,然后再循环到反应区。

    Hydroconversion process
    14.
    发明授权
    Hydroconversion process 失效
    加氢转化过程

    公开(公告)号:US4454024A

    公开(公告)日:1984-06-12

    申请号:US438407

    申请日:1982-11-01

    CPC分类号: C10G47/16 C10G47/32

    摘要: A slurry hydroconversion process is provided wherein a heavy hydrocarbonaceous oil, in which is dispersed a metal-contaminated, partially deactivated zeolitic cracking catalyst, is converted to lower boiling products in the presence of a molecular hydrogen-containing gas, and a hydrogen donor diluent.

    摘要翻译: 提供了一种浆料加氢转化方法,其中分散有金属污染的部分失活的沸石裂化催化剂的重质烃油在分子含氢气体和氢供体稀释剂的存在下转化为较低沸点产物。

    Process for upgrading hydrocarbonaceous oils
    15.
    发明授权
    Process for upgrading hydrocarbonaceous oils 失效
    烃类油的改质方法

    公开(公告)号:US4451354A

    公开(公告)日:1984-05-29

    申请号:US454875

    申请日:1983-01-03

    申请人: Gordon F. Stuntz

    发明人: Gordon F. Stuntz

    IPC分类号: C10G65/12 C10G69/02

    CPC分类号: C10G65/12 C10G2300/107

    摘要: A process for upgrading a heavy hydrocarbonaceous oil is provided in which the heavy oil is hydrorefined in the presence of a hydrorefining catalyst at conditions to convert a portion of the heavy constituents of the oil, followed by cracking the hydrorefined oil in the presence of the hydrogen donor diluent. The hydrorefining and cracking stages are conducted at a relatively low hydrogen partial pressure while obtaining a high level of conversion of the heavy constituents of the oil.

    摘要翻译: 提供了一种用于升级重质烃油的方法,其中在加氢精制催化剂存在下,在转化一部分重质组分的条件下将重质油加氢精制,然后在氢气存在下裂解加氢精制油 供体稀释剂。 加氢精制和裂解阶段在相对低的氢分压下进行,同时获得油的重质组分的高水平转化率。

    Process for reducing coke formation in heavy feed catalytic cracking
    16.
    发明授权
    Process for reducing coke formation in heavy feed catalytic cracking 失效
    重质进料催化裂化中焦炭形成减少的方法

    公开(公告)号:US4372841A

    公开(公告)日:1983-02-08

    申请号:US260191

    申请日:1981-05-04

    IPC分类号: C10G11/02 C10G11/18 C10G9/16

    CPC分类号: C10G11/18 C10G11/02

    摘要: A method for decreasing the amount of coke produced during the cracking of hydrocarbon feedstock to lower molecular weight products in a reaction zone is disclosed, where the feedstock contains at least two metal contaminants selected from the class consisting of nickel, vanadium and iron, and where these contaminants become deposited on the catalyst. The method comprises adding a hydrogen donor material to the reaction zone and passing the catalyst from the reaction zone through a reduction zone maintained at an elevated temperature for a time sufficient to at least partially passivate the catalyst.

    摘要翻译: 公开了一种在反应区中将烃原料裂解成较低分子量产物时产生的焦炭量减少的方法,其中原料含有选自镍,钒和铁的至少两种金属污染物,其中 这些污染物沉积在催化剂上。 该方法包括将氢供体材料加入反应区并使催化剂从反应区通过保持在升高温度下的还原区一段足以至少部分钝化催化剂的时间。