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    Co-production of aromatics and olefins from paraffinic feedstocks
    2.
    发明授权
    Co-production of aromatics and olefins from paraffinic feedstocks 失效
    从石蜡原料共同生产芳烃和烯烃

    公开(公告)号：US4918256A

    公开(公告)日：1990-04-17

    申请号：US140360

    申请日：1988-01-04

    Applicant: Margaret Nemet-Mavrodin

    Inventor： Margaret Nemet-Mavrodin

    IPC: C07C4/06 ,  B01J29/40 ,  C07B61/00 ,  C07C1/00 ,  C07C5/41 ,  C07C9/02 ,  C07C11/02 ,  C07C15/02 ,  C07C67/00 ,  C10G35/095

    CPC classification number: C10G35/095

    Abstract: There is provided a process for converting a C.sub.5 -C.sub.10 paraffinic feedstock such as a Udex reffinate into other hydrocarbons including C.sub.6 -C.sub.8 aromatics, C.sub.2 -C.sub.4 olefins, C.sub.9.sup.+ aromatics and C.sub.1 -C.sub.3 paraffins. By using a catalyst comprising (1) a binder and (2) ZSM-5 or ZSM-11, said catalyst having low acid catalytic activity as measured by an alpha value of 25 or less, the selectivity to the more desired C.sub.6 -C.sub.8 aromatics and C.sub.2 -C.sub.4 olefins is increased. The low alpha value of the catalyst may be achieved by deactivating the catalyst under conditions comprising steaming, high temperature calcining and/or coking.

    Turbulent fluid bed paraffin conversion process
    3.
    发明授权
    Turbulent fluid bed paraffin conversion process 失效
    湍流流化床石蜡转化过程

    公开(公告)号：US5012026A

    公开(公告)日：1991-04-30

    申请号：US310136

    申请日：1989-02-14

    Applicant: Amos A. Avidan ,  Margaret Nemet-Mavrodin ,  Jorge L. Soto

    Inventor： Amos A. Avidan ,  Margaret Nemet-Mavrodin ,  Jorge L. Soto

    IPC: C10G35/14

    CPC classification number: C10G35/14 ,  B01J8/0055 ,  B01J8/1809 ,  B01J8/1836 ,  B01J2208/00132 ,  B01J2208/00557 ,  B01J2208/00663 ,  B01J2208/00672

    Abstract: A fluid bed catalytic paraffin upgrading process is disclosed. By closely controlling catalyst particle size distribution and density, together with feedstock superficial vapor velocity, the fluid bed is maintained in a turbulent flow regime. Surprisingly, maintaining the fluid bed in a turbulent flow regime shifts the product selectivity away from methane and ethane and toward the more valuable products hydrogen, light olefins and C.sub.5 + gasoline. In the most preferred embodiment, the catalyst contains a dehydrogenation metal component such as gallium, zinc, platinum or rhenium to provide a C.sub.5+ gasoline product rich in aromatics. Catalysts useful in the inventive process include zeolites as well as layered siliceous materials.

    Abstract translation: 公开了流化床催化链烷烃改质方法。 通过密切控制催化剂粒度分布和密度，以及原料表面蒸气速度，流化床保持在湍流状态。 令人惊讶的是，将流化床保持在湍流状态，将产物选择性从甲烷和乙烷转移到更有价值的产物氢，轻质烯烃和C5 +汽油。 在最优选的实施方案中，催化剂含有诸如镓，锌，铂或铼的脱氢金属组分，以提供富含芳族化合物的C5 +汽油产品。 可用于本发明方法的催化剂包括沸石以及层状硅质材料。

    Two stage process for the production of a high benzene aromatic product
    4.
    发明授权
    Two stage process for the production of a high benzene aromatic product 失效
    生产高苯芳香产品的两阶段工艺

    公开(公告)号：US4808295A

    公开(公告)日：1989-02-28

    申请号：US133773

    申请日：1987-12-16

    Applicant: Margaret Nemet-Mavrodin

    Inventor： Margaret Nemet-Mavrodin

    IPC: B01J29/40 ,  B01J29/44 ,  C07C2/00 ,  C10G35/06

    CPC classification number: B01J29/44 ,  B01J29/405 ,  C07C2/00 ,  B01J2229/26 ,  B01J2229/42 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  Y02P20/52

    Abstract: A process is provided for converting a feedstock comprising a preponderant amount of C.sub.2 -C.sub.10 aliphatic compounds to a product having a high proportion of benzene in a two stage process, with the effluent from the first stage passing directly to the second stage, i.e., with no intermediate processing such as purification or separation. In the first stage, the feedstock is contacted under suitable conversion conditions with a catalyst comprising an aluminosilicate zeolite having a Constraint Index in the approximate range of 1 to 12 and a degree of acidity indicated by an alpha value of at least about 3. The effluent from the first stage is then passed directly to a second stage where it is contacted under conversion conditions with a catalyst comprising platinum and a zeolite which either has a Constraint Index of approximately 1 to 12 or is a potassium zeolite L in which the number of protonic acid sites have been reduced by exchange with barium, strontium or calcium, the second stage zeolite being substantially non- or low-acid as indicated by an alpha value no higher than about 1.

    Abstract translation: 提供了一种方法，用于将包含主要量的C 2 -C 10脂族化合物的原料转化为在两阶段方法中具有高比例苯的产物，其中来自第一阶段的流出物直接进入第二阶段，即与 无中间处理如纯化或分离。 在第一阶段，原料在合适的转化条件下与包含约1至12约束范围约束指数的铝硅酸盐沸石的催化剂接触，并且由α值至少为约3表示的酸度。 然后从第一阶段直接通入第二阶段，在第二阶段，在转化条件下与包含铂和沸石的催化剂接触，该催化剂的约束指数约为1至12，或是沸石L，其中质子数 酸性位点已经通过与钡，锶或钙的交换而被还原，第二级沸石基本上是非酸或低酸的，如α值不高于约1所示。

    Selective hydrogenation of acetylenic impurities in crude butadiene
    5.
    发明授权
    Selective hydrogenation of acetylenic impurities in crude butadiene 失效
    粗丁二烯中炔属杂质的选择性氢化

    公开(公告)号：US4704492A

    公开(公告)日：1987-11-03

    申请号：US946227

    申请日：1986-12-24

    Applicant: Margaret Nemet-Mavrodin

    Inventor： Margaret Nemet-Mavrodin

    IPC: C07C7/167 ,  C07C5/03

    CPC classification number: C07C7/167

    Abstract: In a process wherein the vinyl acetylenes present as an impurity in a stream of butadienes are removed by hydrogenating the stream over a catalyst the loss of butadiene is lessened and catalyst aging is diminished by injecting the hydrogen in reduced quantities into a series of smaller catalyst beds connected in series.

    Abstract translation: 在其中通过在催化剂上氢化流除去在丁二烯流中作为杂质存在的乙烯基炔类的方法中，通过将少量氢气注入一系列较小的催化剂床中，丁二烯的损失减少，催化剂老化减少 串联连接。

    Combustive membrane reactor and paraffin upgrading process
    8.
    发明授权
    Combustive membrane reactor and paraffin upgrading process 失效
    燃烧膜反应器和石蜡升级过程

    公开(公告)号：US4990714A

    公开(公告)日：1991-02-05

    申请号：US347307

    申请日：1989-05-04

    Applicant: Margaret Nemet-Mavrodin

    Inventor： Margaret Nemet-Mavrodin

    IPC: B01J4/04 ,  B01J8/00 ,  B01J8/04 ,  B01J8/18 ,  B01J8/26 ,  B01J19/24 ,  C07C5/32

    CPC classification number: C07C5/324 ,  B01J19/2475 ,  B01J8/009 ,  B01J8/0449 ,  B01J8/0465 ,  B01J8/1836 ,  B01J8/26 ,  B01J2208/00309 ,  B01J2208/00522 ,  B01J2208/0053

    Abstract: A process and reactor apparatus are disclosed for upgrading paraffinic feedstocks to olefinic and/or aromatic products. Hydrogen diffuses through a selectively permeable membrane from the reaction zone into a combustion zone where it reacts exothermically with an oxygen-containing fluid to supply at least a portion of the endothermic heat of reaction for the paraffin upgrading process. Additionally, in-situ separation of by-product hydrogen from the reactant mixture in the reaction zone increases yield of valuable olefinic and aromatic products.

    Abstract translation: 公开了一种用于将链烷烃原料升级成烯烃和/或芳香族产物的方法和反应器装置。 氢气通过选择性渗透膜从反应区扩散到燃烧区，在该燃烧区中，其与含氧流体放热反应以供应至少一部分用于石蜡升级过程的反应吸热热。 此外，副产物氢在反应区中从反应物混合物中原位分离增加了有价值的烯烃和芳香族产物的产率。

    Process for the conversion of C.sub.2 -C.sub.12 paraffinic hydrocarbons to petrochemical feedstocks
    9.
    发明授权
    Process for the conversion of C.sub.2 -C.sub.12 paraffinic hydrocarbons to petrochemical feedstocks 失效
    将C2-C12链烷烃转化为石化原料的方法

    公开(公告)号：US4922051A

    公开(公告)日：1990-05-01

    申请号：US325735

    申请日：1989-03-20

    Applicant: Margaret Nemet-Mavrodin ,  Jorge L. Soto

    Inventor： Margaret Nemet-Mavrodin ,  Jorge L. Soto

    IPC: B01J29/65 ,  B01J29/40 ,  C07C2/70 ,  C07C4/06 ,  C07C4/18 ,  C07C5/41 ,  C07C11/02 ,  C07C15/02 ,  C10G35/095 ,  C10G45/00 ,  C10G45/64 ,  C10G47/16 ,  C10G49/08

    CPC classification number: C10G45/00 ,  C10G45/64

    Abstract: A process is disclosed for the conversion of C.sub.2 -C.sub.12 paraffinic hydrocarbons to more valuable petrochemical feedstocks including C.sub.2 -C.sub.4 olefins and C.sub.6 -C.sub.8 aromatics in the presence of a composite catalyst comprising a binder and at least one zeolite having a Constraint Index of between about 1 and 12, said composite catalyst having an alpha value of of greater than 5 and less than 33. It has been found that yields of valuable C.sub.2 -C.sub.4 olefins and C.sub.6 -C.sub.8 aromatics are increased by maintaining the composite catalyst alpha value within the claimed range.

    Abstract translation: 公开了一种用于在包含C 2 -C 4烯烃和C 6 -C 8芳烃的复合催化剂存在下将C2-C12链烷烃转化为更有价值的石油化学原料的方法，所述复合催化剂包含粘合剂和至少一种沸石，其约束指数介于约 1和12，所述复合催化剂具有大于5且小于33的α值。已经发现，通过将复合催化剂α值保持在所要求保护的范围内，增加了有价值的C 2 -C 4烯烃和C 6 -C 8芳族化合物的产率 范围。

    Process for converting aliphatics to aromatics over a gallium-activated zeolite
    10.
    发明授权
    Process for converting aliphatics to aromatics over a gallium-activated zeolite 失效
    在镓活化的沸石上将脂族烃转化为芳族化合物的方法

    公开(公告)号：US4861933A

    公开(公告)日：1989-08-29

    申请号：US240299

    申请日：1988-09-06

    Applicant: Margaret Nemet-Mavrodin

    Inventor： Margaret Nemet-Mavrodin

    IPC: B01J29/40 ,  B01J29/44 ,  C07C2/00

    CPC classification number: B01J29/44 ,  B01J29/405 ,  C07C2/00 ,  B01J2229/26 ,  B01J2229/42 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70

    Abstract: A catalytic process is provided for converting a C.sub.3.sup.+ feedstock containing at least 50 wt. % of C.sub.3 to C.sub.12 aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions of a severity resulting in a conversion of at least about 80 wt. % of said hydrocarbons, with a catalyst prepared by loading with gallium a zeolite having a Constraint Index within the approximate range of 1 to 12 and a silica/alumina molar ratio of about 25:1 to 1000:1, and subsequently calcining the catalyst at a temperature of at least about 700.degree. C.

    Abstract translation: 提供催化方法用于转化含有至少50wt。 通过在至少约80重量％的转化率的转化条件下使原料接触，将C3至C12脂族烃的％与芳族化合物反应。 ％的所述烃与催化剂制备，所述催化剂通过将镓负载约1至12的约束指数的沸石和二氧化硅/氧化铝摩尔比为约25:1至1000:1，并将随后的催化剂在 至少约700℃的温度

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