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31 条记录 (耗时 0.021 秒)

    Reducing NO.sub.x emissions from a circulating fluid bed combustor
    1.
    发明授权
    Reducing NO.sub.x emissions from a circulating fluid bed combustor 失效
    减少循环流化床燃烧室的NOx排放

    公开(公告)号：US5055029A

    公开(公告)日：1991-10-08

    申请号：US660913

    申请日：1991-02-27

    申请人： Amos A. Avidan ,  Arthur A. Chin ,  Gary J. Green

    发明人： Amos A. Avidan ,  Arthur A. Chin ,  Gary J. Green

    IPC分类号： F23C10/10

    CPC分类号： F23C10/10 ,  F23C2206/101 ,  F23C2206/103 ,  F23G2203/501 ,  F23G2209/12

    摘要： A circulating fluid bed combustion (CFBC) unit, which burns a carbon and nitrogen containing fuel to produce heat and flue gas comprising NO.sub.x, operates with reduced emissions of NO.sub.x from the flue gas by adding to the circulating fluid bed a catalytically effective amount of a DeNO.sub.x catalyst, such as bismuth oxide on a silica/alumina support. The DeNO.sub.x catalyst may circulate freely with the circulating inventory of particulates in the CFB, or can be disposed on a heavier particle which "slips" and has an extended residence time in the combustion zone where the carbonaceous fuel is burned. A CO combustion promoter, such as Pt on silica/alumina may also be present.

    摘要翻译： 燃烧含碳和氮的燃料以产生包含NOx的烟气的循环流化床燃烧（CFBC）单元通过向循环流化床中减少催化有效量的 DeNOx催化剂，例如二氧化硅/氧化铝载体上的氧化铋。 DeNOx催化剂可以与CFB中的颗粒的循环库存自由循环，或者可以放置在较重的颗粒上，该颗粒“滑倒”并且在碳燃料燃烧的燃烧区域具有延长的停留时间。 还可以存在CO燃烧促进剂，例如二氧化硅/氧化铝上的Pt。

    Method for passivating metals on an FCC catalyst
    2.
    发明授权
    Method for passivating metals on an FCC catalyst 失效
    在FCC催化剂上钝化金属的方法

    公开(公告)号：US4986896A

    公开(公告)日：1991-01-22

    申请号：US337685

    申请日：1989-04-13

    申请人： Amos A. Avidan ,  Arthur A. Chin

    发明人： Amos A. Avidan ,  Arthur A. Chin

    IPC分类号： C10G11/05

    CPC分类号： C10G11/05 ,  Y10S502/521

    摘要： A known method for passivating contaminant metals on an FCC catalyst comprises treating the catalyst with a sufficient amount of a sulfur-containing compound capable of associating with the contaminant metals when in contact therewith. An improvement comprises contacting the catalyst with the sulfur-containing compound for at least 3 seconds. In another embodiment of the invention, the improvement comprises contacting the catalyst with the sulfur-containing compound in a separate treatment vessel.

    摘要翻译： 用于在FCC催化剂上钝化污染金属的已知方法包括用足够量的与污染金属缔合的含硫化合物处理催化剂。 改进之处在于使催化剂与含硫化合物接触至少3秒钟。 在本发明的另一个实施方案中，改进包括在单独的处理容器中使催化剂与含硫化合物接触。

    Process and apparatus for fast fluidized bed regeneration of catalyst in a bubbling bed catalyst regenerator
    3.
    发明授权
    Process and apparatus for fast fluidized bed regeneration of catalyst in a bubbling bed catalyst regenerator 失效
    在起泡床催化剂再生器中快速流化床再生催化剂的方法和装置

    公开(公告)号：US5141712A

    公开(公告)日：1992-08-25

    申请号：US729758

    申请日：1991-07-15

    申请人： Amos A. Avidan

    发明人： Amos A. Avidan

    IPC分类号： B01J8/18 ,  C10G11/18

    CPC分类号： C10G11/182 ,  B01J8/1863

    摘要： A process and apparatus are disclosed for achieving turbulent or fast fluidized bed regeneration of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. A coke combustor vessel is immersed in, and in open fluid communication with, the bubbling dense bed of the existing regenerator vessel. Spent catalyst is discharged into the coke combustor, mixes with hot regenerated catalyst which flows into the coke combustor, and regenerated with combustion air in a turbulent or fast fluidized bed. Catalyst and flue gas are discharged up into a dilute phase transport riser, preferably into cyclone which separate hot regenerated catalyst from flue gas. Regenerated catalyst is collected in the bubbling dense bed surrounding the coke combustor, and some is recycled by flowing into the coke combustor for direct contact heat exchange.

    摘要翻译： 公开了一种方法和装置，用于在具有安装在再生器上的汽提塔和在再生器内的汽提催化剂立管的鼓泡床再生器中实现废FCC催化剂的湍流或快速流化床再生。 将焦炭燃烧器容器浸入现有再生器容器的鼓泡致密层中并与其开放流体连通。 废催化剂排放到焦炭燃烧器中，与流入焦炭燃烧器的热再生催化剂混合，并在湍流或快速流化床中用燃烧空气再生。 催化剂和烟道气排放到稀相运输提升管中，优选排入旋风分离器，其将热再生催化剂与烟道气分离。 再生催化剂被收集在焦炭燃烧器周围的鼓泡致密床中，一些通过流入焦炭燃烧器进行再循环，用于直接接触热交换。

    Integrated catalytic cracking process with light olefin upgrading
    4.
    发明授权
    Integrated catalytic cracking process with light olefin upgrading 失效
    综合催化裂解工艺与轻烯烃升级

    公开(公告)号：US4966680A

    公开(公告)日：1990-10-30

    申请号：US200109

    申请日：1988-05-31

    申请人： Amos A. Avidan ,  Sergei Yurchak

    发明人： Amos A. Avidan ,  Sergei Yurchak

    IPC分类号： C10G11/18 ,  C10G35/14 ,  C10G50/00 ,  C10G57/02

    CPC分类号： C10G57/02

    摘要： Process and apparatus for upgrading light olefinic crackate gas from a fluidized catalytic cracking unit having a riser reactor for contacting hot solid cracking catalyst with a heavy hydrocarbon feedstock, said light crackate gas containing ethene, propene and other C.sub.1 -C.sub.4 lower aliphatics, comprising the steps of:reacting the light olefinic gas in contact with a fluidized bed of acid medium pore zeolite catalyst particles under oligomerization and/or aromatization conditions to produce a hydrocarbon effluent stream rich in C.sub.5.sup.+ hydrocarbons and a byproduct light gas rich in C.sub.1 -C.sub.4 saturated hydrocarbons;separating the oligomerization reaction effluent stream to provide a second light gas stream and a condensed liquid hydrocarbon product stream; andrecycling at least a portion of the second gas stream to the fluidized catalytic cracking unit as a lift gas for fluidizing solid cracking catalyst particles in a lower riser portion of said cracking unit.

    摘要翻译： 用于从具有用于使热固体裂化催化剂与重质烃原料接触的提升管反应器的流化催化裂化装置升级轻烯烃裂化气体的方法和装置，所述轻质裂化气体含有乙烯，丙烯和其它C1-C4低级脂族烃，其包括步骤 ：在低聚和/或芳构化条件下使轻质烯属气体与酸性介质孔隙沸石催化剂颗粒的流化床接触，以产生富含C5 +烃的烃流出物流和富含C1-C4饱和烃的副产物轻质气体; 分离低聚反应流出物流以提供第二轻质气体流和冷凝液态烃产物流; 以及将所述第二气流的至少一部分再循环到所述流化催化裂化装置，作为用于在所述裂化装置的下部提升管部分中流化固体裂化催化剂颗粒的提升气体。

    Catalytic cracking with delayed quench
    6.
    发明授权
    Catalytic cracking with delayed quench 失效
    催化裂化延迟淬火

    公开(公告)号：US5954942A

    公开(公告)日：1999-09-21

    申请号：US877913

    申请日：1992-05-04

    申请人： Peter M. Adornato ,  Amos A. Avidan ,  David L. Johnson

    发明人： Peter M. Adornato ,  Amos A. Avidan ,  David L. Johnson

    IPC分类号： C10G11/18 ,  C10G9/16

    CPC分类号： C10G11/18

    摘要： A process for thermally and catalytically upgrading a heavy feed in a single riser reactor FCC unit is disclosed. A heavy feed is cracked in the base of the riser at higher than normal cracking temperatures for at least 1.0 seconds of vapor residence time, then quenched. Quenching with large amounts of quench, preferably downstream of the mid point of the riser, increases conversion as compared to use of the same amount of quench within one second. Small amounts of quench, near the riser outlet, crack heavy feed roughly as well as large amounts of quench, near the base of the riser. High velocity, atomizing quench nozzles reduce riser pressure and/or catalyst slip in downstream portions of the riser, further increasing gasoline selectivity and reducing coke yields.

    摘要翻译： 公开了一种用于热和催化升级单个提升管反应器FCC单元中重质进料的方法。 重质进料在提升管底部以高于正常裂解温度裂化至少1.0秒的蒸气停留时间，然后骤冷。 与在一秒钟内使用相同量的骤冷相比，大量淬火淬火，优选在提升管中点下游的淬火会提高转化率。 在提升管出口附近的少量骤冷物质大大地裂解了大量的原料，并且在提升管的基部附近大量的骤冷。 高速雾化骤冷喷嘴在提升管的下游部分减少提升管压力和/或催化剂流失，进一步提高汽油选择性并降低焦炭产量。

    Integrated catalytic reactor system with light olefin upgrading
    9.
    发明授权
    Integrated catalytic reactor system with light olefin upgrading 失效
    综合催化反应器系统与轻烯烃升级

    公开(公告)号：US5009851A

    公开(公告)日：1991-04-23

    申请号：US312272

    申请日：1989-02-21

    申请人： Amos A. Avidan ,  Sergei Yurchak

    发明人： Amos A. Avidan ,  Sergei Yurchak

    IPC分类号： C10G57/02

    CPC分类号： C10G57/02

    摘要： A catalytic reactor system for cracking heavy oil in a FCC vertical reactor with lift gas. Olefinic light cracking gas separated from the FCC effluent is upgraded in a catalytic reactor to increase gasoline production. Byproduct light paraffinic gas from the second reactor is recycled to the FCC reactor as lift gas.

    摘要翻译： 一种催化反应器系统，用于在具有提升气体的FCC立式反应器中裂解重油。 在FCC催化反应器中将FCC流出物中分离的烯烃轻质裂解气升级，以提高汽油产量。 来自第二反应器的副产物轻链烷烃气体作为提升气体再循环至FCC反应器。

    Process and apparatus for indirect heating of catalyst stripper above a bubbling bed catalyst regenerator
    10.
    发明授权
    Process and apparatus for indirect heating of catalyst stripper above a bubbling bed catalyst regenerator 失效
    在鼓泡床催化剂再生器上方间接加热催化剂汽提器的方法和装置

    公开(公告)号：US5160426A

    公开(公告)日：1992-11-03

    申请号：US515931

    申请日：1990-04-27

    申请人： Amos A. Avidan

    发明人： Amos A. Avidan

    IPC分类号： C10G11/18

    CPC分类号： C10G11/18

    摘要： A process and apparatus for achieving hot catalyst stripping of spent FCC catalyst in a stripper mounted over a bubbling bed regenerator. Hot catalyst stripping is achieved by indirect transfer of heat from the regenerator to the stripper. Heat pipes, surface modifications such as fins on the stripper vessel, or use of a stripper in, or connective with, a heat exchange tube bundle may be used to heat spent catalyst with heat from the regenerator dilute phase, without transferring catalyst from the regenerator. The benefits of hotter catalyst stripping are achieved, without increasing catalyst traffic in the regenerator.

    摘要翻译： 一种用于在安装在起泡床再生器上的汽提塔中实现废FCC催化剂的热催化剂汽提的方法和装置。 通过将热从再生器间接转移到汽提塔来实现热催化剂汽提。 可以使用热管，表面改性例如汽提器上的翅片，或者使用汽提器或与热交换管束连接，以便从再生器稀释相的热量将废催化剂加热，而不将催化剂从再生器 。 实现更热的催化剂汽提的益处，而不增加再生器中的催化剂流量。