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    Process for purifying naphthalene by selective hydrotreatment followed by separation
    2.
    发明授权
    Process for purifying naphthalene by selective hydrotreatment followed by separation 失效
    通过选择性加氢处理分离纯化萘的方法

    公开(公告)号：US06217750B1

    公开(公告)日：2001-04-17

    申请号：US09008582

    申请日：1998-01-16

    Applicant: Samuel Mignard ,  Guenaël Drouglazet ,  Slavik Kasztelan ,  Jean Cosyns ,  Michel Bloch ,  René Genin

    Inventor： Samuel Mignard ,  Guenaël Drouglazet ,  Slavik Kasztelan ,  Jean Cosyns ,  Michel Bloch ,  René Genin

    IPC: C10G4560

    CPC classification number: C07C7/14 ,  C07C7/005 ,  C07C7/163 ,  C07C2523/28 ,  C07C2523/30 ,  C07C2523/75 ,  C07C2523/755 ,  C07C2523/88 ,  C07C2523/888 ,  C07C15/24

    Abstract: The invention concerns a process for purifying naphthalene. The process comprises selective hydrotreatment corresponding to hydrodesulphuration and/or hydrodenitrogenation and/or hydrodehydroxylation and/or hydrogenation of olefins while limiting naphthalene hydrogenation. The catalyst used comprises a matrix, at least one group VIII metal, at least one group VI metal and optionally phosphorous. It has a specific surface area of at most 220 m2/g, a pore volume of 0.35-0.7 ml/g and an average pore diameter of over 10 nm. The process is carried out at 150-325° C. at a pressure of 0.1-0.9 MPa, with an HSV of 0.05-10 h−1, and a H2/naphthalene ratio of 0.1-1.3 mole/mole. The effluent, freed of H2S, NH3 and water, undergoes a naphthalene separation process by distillation or, as is preferable, by crystallisation. Further, recycling the separated tetralin to the hydrotreatment step can substantially increase the naphthalene yield. In this case, the tetralin/naphthalene ratio at the reactor inlet is in the range 0.005 to 0.08.

    Abstract translation: 本发明涉及萘的纯化方法。 该方法包括对应于加氢脱硫和/或加氢脱氮和/或烯烃的加氢脱羟和/或氢化的选择性加氢处理，同时限制萘氢化。 所使用的催化剂包括基质，至少一种VIII族金属，至少一种VI族金属和任选的磷。 比表面积为220m2 / g以下，孔体积为0.35〜0.7ml / g，平均孔径为10nm以上。 该方法在150-325℃，0.1-0.9MPa的压力下进行，HSV为0.05-10h -1，H 2 /萘比为0.1-1.3摩尔/摩尔。 除去H 2 S，NH 3和水的流出物通过蒸馏或优选通过结晶进行萘分离。 此外，将分离的四氢化萘再循环到加氢处理步骤可以显着提高萘产率。 在这种情况下，反应器入口处的四氢化萘/萘比在0.005至0.08的范围内。

    Process for the production of high purity isobutene combining reactive distillation with hydroisomerization, distillation and skeletal isomerization
    3.
    发明授权
    Process for the production of high purity isobutene combining reactive distillation with hydroisomerization, distillation and skeletal isomerization 失效
    生产高纯度异丁烯的方法，其结合反应蒸馏与加氢异构化，蒸馏和骨架异构化

    公开(公告)号：US5969203A

    公开(公告)日：1999-10-19

    申请号：US996122

    申请日：1997-12-22

    Applicant: Michel Dorbon ,  Jean-Alain Chodorge ,  Jean Cosyns ,  Jean-Charles Viltard ,  Blaise Didillon

    Inventor： Michel Dorbon ,  Jean-Alain Chodorge ,  Jean Cosyns ,  Jean-Charles Viltard ,  Blaise Didillon

    IPC: B01J23/40 ,  B01J23/755 ,  C07B61/00 ,  C07C5/27 ,  C07C7/04 ,  C07C11/09 ,  C07C1/00 ,  C07C5/22

    CPC classification number: C07C11/09 ,  C07C5/2791 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/46 ,  C07C2523/755 ,  Y02P20/127 ,  Y10S203/06

    Abstract: The invention relates to a process for producing high purity isobutene from a hydrocarbon cut essentially comprising olefinic hydrocarbons containing 4 carbon atoms per molecule including isobutene, also butene-1 and butene-2 compounds in a ratio which substantially corresponds to the thermodynamic equilibrium. The process comprises passing the cut into a distillation zone (3) associated with a hydroisomerization reaction zone, the bottom product of the distillation zone comprising butene-2 compoundw being passed into a second distillation zone (4), preferably an extractive distillation zone, to obtain a first effluent comprising butene-2 compounds as its major portion and a second effluent comprising normal-butane as its major portion, the major portion of the first effluent being passed into a skeletal isomerization zone (2) where the linear butenes are at least partially isomerized to isobutene, at least part of the principal effluent from the skeletal isomerization zone being recycled upstream of the reactive distillation zone (1).

    Abstract translation: 本发明涉及从基本上包含每分子含有4个碳原子的烯烃的烃馏分生产高纯度异丁烯的方法，包括异丁烯，以及基本上对应于热力学平衡的比例的丁烯-1和丁烯-2化合物。 该方法包括将切片通入与加氢异构化反应区相关联的蒸馏区（3），蒸馏区的底部产物包含丁烯-2化合物，其进入第二蒸馏区（4），优选萃取蒸馏区，至 获得包含丁烯-2化合物作为其主要部分的第一流出物和包含正丁烷作为其主要部分的第二流出物，第一流出物的主要部分进入骨架异构化区（2），其中线性丁烯至少为 部分异构化为异丁烯，来自骨架异构化区的至少部分主要流出物被循环在反应蒸馏区（1）的上游。

    Process for the hydrogenation of diolefins in aromatic-rich hydrocarbons using metallic catalysts impregnated with organic sulphur-containing compounds
    5.
    发明授权
    Process for the hydrogenation of diolefins in aromatic-rich hydrocarbons using metallic catalysts impregnated with organic sulphur-containing compounds 失效
    使用浸渍有机含硫化合物的金属催化剂在富含芳烃的烃中氢化二烯烃的方法

    公开(公告)号：US5821397A

    公开(公告)日：1998-10-13

    申请号：US593410

    申请日：1996-01-29

    Applicant: Jean-Fran.cedilla.ois Joly ,  Charles Cameron ,  Jean Cosyns ,  Gerard Leger ,  Pierre Renard ,  Fran.cedilla.oise Montecot

    Inventor： Jean-Fran.cedilla.ois Joly ,  Charles Cameron ,  Jean Cosyns ,  Gerard Leger ,  Pierre Renard ,  Fran.cedilla.oise Montecot

    IPC: B01J37/20 ,  C10G45/00 ,  C10G45/40 ,  C07C7/163 ,  C07C5/03 ,  C07C5/08

    CPC classification number: C10G45/40 ,  B01J37/20 ,  C10G45/00

    Abstract: A process is described for the high-efficiency selective hydrogenation of an aromatic hydrocarbon cut which also contains monoolefinic hydrocarbons and polyolefinic and/or acetylenic hydrocarbons with a bromine number of 10000 to 100 mg per 100 g of product with an aromatic degree of conversion which is limited to a maximum of 0.15% by weight, the process being characterized in that the cut, which is at least partially in the liquid phase, is passed with hydrogen into a hydrogenation zone in contact with a catalyst containing 0.1% to 1% by weight (with respect to the support) of palladium, the catalyst having been treated before activation with at least one organic sulphur-containing compound to introduce 0.05% to 1% of sulphur (by weight with respect to the weight of the catalyst), the process being carried out at a temperature in the range 20.degree. C. to 25.degree. C., at a pressure of 4-50 bar, a GHSV of 0.2-25 h.sup.-1 and with a H.sub.2 /monoolefin +polyolefin and/or acetylenes ratio in the range 0.3 to 100.

    Abstract translation: 描述了一种芳族烃切割的高效选择性加氢的方法，其还包含单烯烃和具有10000至100mg溴值的聚烯烃和/或炔烃，每100g具有芳族转化率的产物为 限制为最大0.15重量％，该方法的特征在于，将至少部分在液相中的馏分与氢气一起通入与含有0.1重量％至1重量％的催化剂接触的氢化区 （相对于载体），催化剂在活化前用至少一种有机含硫化合物处理以引入0.05％至1％的硫（相对于催化剂的重量计），该方法 在20〜25℃的温度下，在4-50巴的压力，0.2-25h -1的GHSV和H 2 /单烯烃+聚烯烃和/或乙炔比例下进行 在范围内 0.3〜100。

    Selectively hydrogenating acetylenic compounds in a high butadiene content C.sub.4 cut
    8.
    发明授权
    Selectively hydrogenating acetylenic compounds in a high butadiene content C.sub.4 cut 失效
    选择性氢化高丁二烯含量C4馏分中的炔属化合物

    公开(公告)号：US4587369A

    公开(公告)日：1986-05-06

    申请号：US664654

    申请日：1984-10-25

    Applicant: Jean Cosyns ,  Jean-Paul Boitiaux

    Inventor： Jean Cosyns ,  Jean-Paul Boitiaux

    IPC: C07C7/167 ,  B01J23/44 ,  C07C1/00 ,  C07C5/08 ,  C07C11/16 ,  C07C11/167 ,  C07C67/00

    CPC classification number: C07C5/08 ,  C07C2523/44

    Abstract: A C.sub.4 cut of high butadiene content is selectively hydrogenated in contact with a supported palladium catalyst, the operation being performed in admixture with a hydrocarbon and an amine.The C.sub.4 cut of high butadiene content (1) and liquid hydrocarbon containing the amine (6) pass through reactor (2). The resultant product is fractionated (13). The C.sub.4 cut is recovered in the vapor phase (15) and the liquid phase recycled (16).

    Abstract translation: 选择性氢化与负载的钯催化剂接触的高丁二烯含量的C4馏分，该操作是与烃和胺混合进行的。 高丁二烯含量（1）的C4馏分和含有胺（6）的液态烃通过反应器（2）。 将所得产物分馏（13）。 在气相（15）和液相循环（16）中回收C4馏分。

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