Catalytic cracking using a layered cracking catalyst
    81.
    发明授权
    Catalytic cracking using a layered cracking catalyst 失效
    使用层状裂化催化剂进行催化裂化

    公开(公告)号:US5286370A

    公开(公告)日:1994-02-15

    申请号:US808487

    申请日:1991-12-17

    IPC分类号: B01J33/00 C10G11/05 B01J29/06

    摘要: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals form the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.

    摘要翻译: 层状催化剂在分子筛含量降低的壳层内含有至少一种,优选三种分子筛组分的核心。 优选的催化剂由大孔分子筛的芯,优选脱铝的Y型沸石,形状选择性石蜡裂解/异构化组分,优选HZSM-5和形状选择性脂族芳构化组分,优选镓ZSM-5组成, 在富含氧化铝的基体的壳内。 外壳可以从正在加工的进料中捕获金属,它可以作为金属沉头,并可以通过磨损去除单元的金属。 催化剂优选通过形成核心然后用具有降低的分子筛含量的壳体涂覆或包封核心来制备。 壳可能含有柱状粘土或其他非常大的孔裂解组分。 壳可以是非晶态稀土氧化物,氧化铝和磷酸铝复合物的可磨损涂层,其捕获金属。

    Iso-olefin production
    82.
    发明授权
    Iso-olefin production 失效
    ISO-OLEFIN生产

    公开(公告)号:US5234576A

    公开(公告)日:1993-08-10

    申请号:US738371

    申请日:1991-07-31

    CPC分类号: C10G57/00

    摘要: The present invention discloses a process for increasing the selectivity of the production of isobutylene in an admixture of C.sub.4 olefins, in a process comprising producing isobutylene, with high selectivity, comprising catalytically producing a first composition comprising at least one C.sub.4 olefin selected from the group consisting of 1-butene, cis-2-butene, trans-2-butene, admixtures thereof and 2-methylpropene admixed with at least one of said 1-butene, cis-2-butene, and trans-2-butene, by passing paraffin containing feed, which feed is free of aromatics, and in which the paraffin contains 5 to 20 carbon atoms, in the vapor phase, over a first catalyst composition, wherein the catalyst comprises ZSM-5 or ZSM-12, and increasing the isobutylene content of the first composition by producing a second composition, by contacting the first composition with a second catalyst composition comprising ZSM-23 under conditions in which the second composition is in the vapor phase, while maintaining the total C.sub.4 olefin content of the second composition substantially identical to the total C.sub.4 olefin content of the first composition.

    摘要翻译: 本发明公开了一种增加在C4烯烃混合物中制备异丁烯的选择性的方法,该方法包括以高选择性制备异丁烯,其包括催化产生第一组合物,该组合物包含至少一种选自以下的C 4烯烃: 的1-丁烯,顺式-2-丁烯,反式-2-丁烯,其混合物和与所述1-丁烯,顺式-2-丁烯和反式-2-丁烯中的至少一种混合的2-甲基丙烯,通过石蜡 其中该进料不含芳族化合物,并且其中石蜡在汽相中含有5至20个碳原子,超过第一催化剂组合物,其中催化剂包含ZSM-5或ZSM-12,并且增加异丁烯含量 通过制备第二组合物,通过使第一组合物与包含ZSM-23的第二催化剂组合物在第二组合物处于气相的条件下接触,同时保持t 他的第二组合物的总C 4烯烃含量基本上与第一组合物的总C 4烯烃含量相同。

    Transfer line quenching with cyclone separation
    83.
    发明授权
    Transfer line quenching with cyclone separation 失效
    转运线用旋风分离淬火

    公开(公告)号:US5185077A

    公开(公告)日:1993-02-09

    申请号:US674242

    申请日:1991-03-25

    申请人: Hartley Owen

    发明人: Hartley Owen

    IPC分类号: C10G11/18

    CPC分类号: C10G11/18

    摘要: A process and apparatus for fluidized catalytic cracking of heavy oils are disclosed. Quenching and cyclone separation are done in the transfer line to the main distillation column. Quenching hot vapor from the reactor, preferably with liquid recycled from the main column, improves yields, prevents coking in the transfer line and permits higher cracking reactor temperatures. Cyclone separation of quench and/or condensed liquid prevents slugging, or two phase flow, in the transfer line. Some rough-cut fractionation can be achieved in the cyclone separator. Steam stripping of cyclone liquid optimizes operation of the main column.

    摘要翻译: 公开了一种用于重油流化催化裂化的方法和装置。 在到主蒸馏塔的输送管线中进行淬火和旋风分离。 从反应器中淬火热蒸气,优选用从主塔再循环的液体提高产率,防止输送管线中的焦化并允许更高的裂化反应器温度。 骤冷和/或冷凝液体的旋风分离可防止输送管线中的堵塞或两相流动。 在旋风分离器中可以实现一些粗切分馏。 旋风分离器的蒸汽汽提可优化主色谱柱的运行。

    Catalyst regeneration in a single stage regenerator converted to a two
stage high efficiency regenerator
    84.
    发明授权
    Catalyst regeneration in a single stage regenerator converted to a two stage high efficiency regenerator 失效
    在单级再生器中催化剂再生转化为两级高效率再生器

    公开(公告)号:US5158919A

    公开(公告)日:1992-10-27

    申请号:US693253

    申请日:1991-04-29

    摘要: A process and apparatus for fluidized bed catalyst regeneration. A mixture of spent catalyst, recycled hot regenerated catalyst and regeneration gas are charged to a riser having an outlet connective with a coke combustor immersed in a fluidized bed of catalyst. The coke combustor outlet is covered by the dense phase fluidized bed. Additional combustion air may be added to the fluidized bed of catalyst covering the coke combustor outlet for additional catalyst regeneration. Indirect heat exchange may heat spent catalyst in the riser and/or the coke combustor.

    摘要翻译: 用于流化床催化剂再生的方法和装置。 将废催化剂,再循环热再生催化剂和再生气体的混合物装入具有与浸没在催化剂流化床中的焦炭燃烧器连接的出口的提升管。 焦炭燃烧器出口被密相流化床覆盖。 可以向覆盖焦炭燃烧器出口的催化剂的流化床中加入额外的燃烧空气以用于额外的催化剂再生。 间接热交换可以在提升管和/或焦炭燃烧器中加热废催化剂。

    Process for the conversion of normal alkenes to tertiary alkyl ethers
    85.
    发明授权
    Process for the conversion of normal alkenes to tertiary alkyl ethers 失效
    正链烯烃转化为叔烷基醚的方法

    公开(公告)号:US5132467A

    公开(公告)日:1992-07-21

    申请号:US665052

    申请日:1991-03-06

    IPC分类号: C07C41/06

    CPC分类号: C07C41/06

    摘要: A process is disclosed for the production of tertiary alkyl ethers wherein linear olefins, particularly n-butene, are isomerized in the vapor phase at high temperature in contact with shape selective metallosilicate catalyst to produce iso-olefin vapor, particularly isobutene. The vaporous iso-butene is then etherified with alkanol to provide alkyl tert-alkyl ether such as MTBE. Unreacted iso-olefin and/or linear olefin and product ether are separated by fractionation and unreacted olefin components recycled. Fractionation of the vapor phase etherification product is carried out by using the fresh liquid linear olefin feedstream as a reflux stream to the fractionator.

    摘要翻译: 公开了用于生产叔烷基醚的方法,其中线性烯烃,特别是正丁烯在气相中在与形状选择性金属硅酸盐催化剂接触的高温下异构化以产生异烯烃蒸气,特别是异丁烯。 然后将气态异丁烯与烷醇醚化,得到烷基叔烷基醚如MTBE。 通过分级分离未反应的异烯烃和/或直链烯烃和产物醚,并回收未反应的烯烃组分。 通过使用新鲜液体线性烯烃进料流作为回流流向分馏器进行气相醚化产物的分馏。

    Heavy oil catalytic cracking apparatus
    86.
    发明授权
    Heavy oil catalytic cracking apparatus 失效
    重油催化裂化装置

    公开(公告)号:US5128109A

    公开(公告)日:1992-07-07

    申请号:US464069

    申请日:1990-01-12

    申请人: Hartley Owen

    发明人: Hartley Owen

    IPC分类号: C10G11/18

    CPC分类号: C10G11/182

    摘要: A fluidized catalytic cracking process and apparatus operates with a two stage hot stripper between the reactor and catalyst regenerator. Addition of hot, regenerated catalyst to spent catalyst from the reactor heats the spent catalyst in the first stripping stage, which preferably uses steam stripping gas. The second stage of stripping occurs about a heat removal stab-in heat exchanger tube bundle, which removes heat from the catalyst during the second stage of stripping. Steam or flue gas may be used in the second stripping stage to fluidize catalyst, improve heat transfer and simultaneously strip the catalyst.

    摘要翻译: 流化催化裂化过程和装置在反应器和催化剂再生器之间用两级热汽提器操作。 将热的再生催化剂加入到来自反应器的废催化剂中,在第一汽提阶段加热废催化剂,其优选使用蒸汽汽提气。 第二阶段的剥离发生在热交换管热交换器管束中,其在第二阶段期间从催化剂中除去热量。 蒸汽或烟道气可用于第二汽提阶段以使催化剂流化,改善热传递并同时剥离催化剂。

    Reactor system for ether production
    87.
    发明授权
    Reactor system for ether production 失效
    用于乙醚生产的反应器系统

    公开(公告)号:US5108719A

    公开(公告)日:1992-04-28

    申请号:US631116

    申请日:1990-12-20

    IPC分类号: C07C41/06 C10L1/02

    CPC分类号: C10L1/023 C07C41/06

    摘要: Isopentene, or isoamylene, conversion to methyl tert-amyl ether can be substantially improved while high conversion of isobutylene to methyl tert-butyl ether can be maintained by carrying out the overall etherification process with alkanol in a staged manner, wherein the first stage is methanol etherification of a C.sub.5 +, or C.sub.5, hydrocarbon feedstream rich in isoamylene and the second stage is etherification to produce MTBE and additional TAME from a C.sub.4 +, or C.sub.4, feedstream. Unreacted methanol and hydrocarbons from the first etherification are uniquely separated by fractionation from the TAME product by using the second stage C.sub.4 + feedstream as a reflux stream to the fractionator and passed to the second etherification zone. Products from the second etherification zone are separated by distillation to produce MTBE, TAME and C.sub.5 +, or C.sub.5, hydrocarbons as a bottom stream.

    摘要翻译: 异戊烯或异戊烯转化成甲基叔戊基醚可以显着改善,同时可以通过以分段方式与链烷醇进行总体醚化过程,可以维持异丁烯至甲基叔丁基醚的高转化率,其中第一阶段为甲醇 富含异戊烯的C5 +或C5烃进料的醚化,第二阶段是醚化以从C4 +或C4进料流产生MTBE和另外的TAME。 来自第一次醚化的未反应的甲醇和烃通过使用第二级C4 +进料流作为回流流至分馏器并通过第二醚化区从TAME产物的分馏而被独特地分离。 来自第二醚化区的产物通过蒸馏分离以产生作为底部流的MTBE,TAME和C5 +或C5烃。

    Process for conversion of light paraffins to alkylate in the production
of tertiary alkyl ether rich gasoline
    88.
    发明授权
    Process for conversion of light paraffins to alkylate in the production of tertiary alkyl ether rich gasoline 失效
    在生产富含叔烷基醚的汽油中将轻链烷烃转化为烷基化物的方法

    公开(公告)号:US5106389A

    公开(公告)日:1992-04-21

    申请号:US599199

    申请日:1990-10-17

    IPC分类号: C10G29/20 C10L1/02

    CPC分类号: C10G29/205 C10L1/023

    摘要: A process is disclosed for the production of high octane alkyl tertiary alkyl ether rich gasoline and gasoline rich in alkylated aromatics. It is disclosed that unreacted C.sub.3 -C.sub.4 hydrocarbon fraction of etherification feedstock plus unreacted alkanol can be separated and employed as alkylating agents in combination with a feedstream containing light aromatics when the alkylation reaction is carried out under conditions of high severity in contact with a high activity shape selective metallosilicate catalyst such as ZSM-5. Under high severity conditions olefin-assisted paraffin conversion also occurs as well as cracking, redistribution and alkylation. Aromatic rich gasoline is a suitable feedstream to the high severity conversion zone to produce a gasoline rich in alkylated aromatics.

    摘要翻译: 公开了用于生产富含烷基化芳族化合物的高辛烷基烷基叔烷基醚富含汽油和汽油的方法。 公开了当烷基化反应在与高活性接触的高度苛刻条件下进行时,可以将醚化原料的未反应的C 3 -C 4烃馏分加上未反应的链烷醇分离并用作烷基化试剂与含有轻芳烃的进料流的组合 形状选择性金属硅酸盐催化剂如ZSM-5。 在高苛刻度条件下,烯烃辅助石蜡转化也发生,以及裂化,再分布和烷基化。 富含芳烃的汽油是适用于高浓度转化区的原料流,以产生富含烷基化芳族化合物的汽油。

    Process for production of iso-olefin and ether
    89.
    发明授权
    Process for production of iso-olefin and ether 失效
    异烯烃和醚的生产方法

    公开(公告)号:US5100533A

    公开(公告)日:1992-03-31

    申请号:US607952

    申请日:1990-11-01

    IPC分类号: C10G57/00 C10L1/02

    CPC分类号: C10L1/023 C10G57/00

    摘要: Process and apparatus for upgrading paraffinic naphtha to high octane fuel by contacting a fresh virgin naphtha feedstock stream medium pore acid cracking catalyst comprising MCM-22 zeolite under low pressure selective cracking conditions effective to produce increased yield of total C4-C5 branched aliphatic hydrocarbhons. The preferred feedstock is straight run naptha containing C7+ alkanes, at least 15 wt % C7+ cycloaliphatic hydrocarbons and less than 20% aromatics, which can be converted with a fluidized bed catalyst in a vertical riser reactor during a short contact period.The isoalkene products of cracking are etherified to provide high octane fuel components.

    摘要翻译: 通过在低压选择性裂解条件下接触包含MCM-22沸石的新鲜原始石脑油原料流介质孔隙酸裂解催化剂,有效地产生总C4-C5支链脂族烃的产率提高,将石蜡石脑油升级成高辛烷值燃料的方法和设备。 优选的原料是含有C7 +烷烃,至少15重量%的C7 +脂环族烃和少于20%的芳族化合物的直馏石脑油,其可以在短时间接触期间在垂直提升管反应器中用流化床催化剂转化。 裂化的异烯烃产物被醚化以提供高辛烷值的燃料成分。

    Ether and hydrocarbon production
    90.
    发明授权
    Ether and hydrocarbon production 失效
    醚和碳氢化合物生产

    公开(公告)号:US5095159A

    公开(公告)日:1992-03-10

    申请号:US616530

    申请日:1990-11-21

    摘要: An integrated process is disclosed that substantially reduces the cost of producing MTBE and other alkyl tertalkyl ethers by eliminating a major portion of the equipment and operating costs associated with the downstream processing of the etherification reactor effluent. The integrated process combines the process for the etherification of iso-olefins and methanol, or other alkanols, to produce methyl tertiary alkyl ethers such as MTBE and/or TAME with the catalytic process for converting feedstock such as oxygenates, light olefins and paraffins to higher molecular weight hydrocarbons. Unconverted reactants from the etherification reaction, which may comprise unreacted alkanol and unreacted hydrocarbons or just unreacted hydrocarbons, are separated from the product ethers and passed to the catalytic conversion process reactor for conversion to gasoline boiling range hydrocarbons.

    摘要翻译: 公开了一种综合方法,通过消除设备的主要部分和与醚化反应器流出物的下游加工相关的操作成本,大大降低了生产MTBE和其它烷基叔烷基醚的成本。 该综合方法结合了异烯烃和甲醇或其它链烷醇的醚化方法,以生产甲基叔烷基醚如MTBE和/或TAME,具有用于将原料如含氧化合物,轻质烯烃和链烷烃转化为更高的催化方法 分子量烃。 来自可能包含未反应的烷醇和未反应的烃或刚刚未反应的烃的醚化反应的未转化的反应物从产物醚中分离出并转移到催化转化过程反应器中以转化为汽油沸程烃。