利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

25 条记录 (耗时 0.016 秒)

    Process for producing polypropylene from C3 olefins selectively produced by a two stage fluid catalytic cracking process
    2.
    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

    申请人： George A. Swan, III ,  Michael W. Bedell ,  Paul K. Ladwig ,  John E. Asplin ,  Gordon F. Stuntz ,  William A. Wachter ,  B. Erik Henry

    发明人： George A. Swan, III ,  Michael W. Bedell ,  Paul K. Ladwig ,  John E. Asplin ,  Gordon F. Stuntz ,  William A. Wachter ,  B. Erik Henry

    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。

    Combustion control in a fluid catalytic cracking regenerator
    7.
    发明授权
    Combustion control in a fluid catalytic cracking regenerator 失效
    流化催化裂化再生器中的燃烧控制

    公开(公告)号：US6114265A

    公开(公告)日：2000-09-05

    申请号：US213347

    申请日：1994-03-15

    申请人： Todd R. Steffens ,  Paul K. Ladwig

    发明人： Todd R. Steffens ,  Paul K. Ladwig

    IPC分类号： B01J38/20 ,  C10G11/18 ,  B01J29/90

    CPC分类号： C10G11/182 ,  B01J38/20 ,  C10G11/187 ,  Y10S502/514

    摘要： Disclosed is a process for controlling combustion in a fluid catalytic cracking regenerator. More specifically, afterburning which occurs during the combustion process is controlled by adjusting oxygen concentration in at least one of two combustion streams which is injected into a fluid catalytic cracking regenerator. Preferably, the combustion streams used in the invention are asymmetrically injected into a dense phase catalyst bed within the regenerator.

    摘要翻译： 公开了一种用于控制流化催化裂化再生器中的燃烧的方法。 更具体地，在燃烧过程中发生的后燃烧通过调节注入流化催化裂化再生器的两个燃烧流中的至少一个中的氧浓度来控制。 优选地，本发明中使用的燃烧流不对称地注入到再生器内的致密相催化剂床中。

    Product filtration system for slurry reactors
    9.
    发明授权
    Product filtration system for slurry reactors 有权
    浆料反应器的产品过滤系统

    公开(公告)号：US08022109B2

    公开(公告)日：2011-09-20

    申请号：US12592167

    申请日：2009-11-20

    申请人： David G. Hammond ,  David C. Long ,  Paul K. Ladwig ,  Min Chang

    发明人： David G. Hammond ,  David C. Long ,  Paul K. Ladwig ,  Min Chang

    IPC分类号： C07C27/00 ,  B01D33/00 ,  B01D29/07 ,  B01D61/00

    CPC分类号： C10G2/342 ,  B01D2201/0484 ,  B01J8/006 ,  B01J8/22 ,  B01J2208/00539

    摘要： A filter system for use in a three-phase slurry reactor is provided. The filter system comprises one or more bundles of a plurality of filter elements for separating liquid from a mixture of liquid and solids contained in the reactor. Each filter bundle is connected to a product transfer conduit transporting separated liquid to a location outside of and downstream from the reactor. The transfer conduit is provided with means for backflushing the filter bundle and guard filter means.

    摘要翻译： 提供了一种用于三相淤浆反应器的过滤系统。 过滤系统包括一个或多个多个过滤元件束，用于从包含在反应器中的液体和固体的混合物中分离液体。 每个过滤器束连接到将分离的液体输送到反应器外部和下游的位置的产品输送管道。 输送管道设有用于反吹过滤器束和保护过滤器装置的装置。

    Method for maintaining heat balance in a fluidized bed catalytic cracking unit
    10.
    发明授权
    Method for maintaining heat balance in a fluidized bed catalytic cracking unit 失效
    在流化床催化裂化装置中保持热平衡的方法

    公开(公告)号：US06558531B2

    公开(公告)日：2003-05-06

    申请号：US09804721

    申请日：2001-03-13

    申请人： Todd R. Steffens ,  Paul K. Ladwig ,  George Melfi ,  John E. Asplin

    发明人： Todd R. Steffens ,  Paul K. Ladwig ,  George Melfi ,  John E. Asplin

    IPC分类号： C10G1100

    CPC分类号： C10G11/18 ,  C10G11/182

    摘要： The invention relates to a process for maintaining heat balance in a fluidized bed catalytic cracking unit. More specifically, the invention relates to a combustion control method capable of maintaining or restoring heat balance by conducting, under appropriate conditions, fuel and an oxygen-containing gas to a transfer line. The transfer line conducts effluent including spent catalyst and combustion products to the unit's catalyst regeneration zone.

    摘要翻译： 本发明涉及一种维持流化床催化裂化装置中的热平衡的方法。 更具体地，本发明涉及一种能够通过在适当条件下将燃料和含氧气体传导到传输线来维持或恢复热平衡的燃烧控制方法。 输送管线将包括废催化剂和燃烧产物的废水排放到设备的催化剂再生区。