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39 条记录 (耗时 0.017 秒)

    Reduction of nitrite contaminants by selective hydrogenation
    1.
    发明授权
    Reduction of nitrite contaminants by selective hydrogenation 失效
    通过选择性氢化还原亚硝酸盐污染物

    公开(公告)号：US5741930A

    公开(公告)日：1998-04-21

    申请号：US796517

    申请日：1997-04-28

    申请人： Dennis Hearn ,  Kyte H. Terhune

    发明人： Dennis Hearn ,  Kyte H. Terhune

    IPC分类号： C07C253/34 ,  C07C209/48

    CPC分类号： C07C253/34

    摘要： A process for selectively reducing nitrile contaminants in fluids such as water, methanol or hydrocarbon streams containing mono olefins and which contain minor amounts of contaminants comprising nitriles in the presence of hydrogen and a supported cobalt catalyst. In the olefin stream the nitrile contaminants are substantially reduced without substantial reduction of the mono olefins.

    摘要翻译： 选择性地还原流体中的腈污染物的方法，例如含有单烯烃的水，甲醇或烃流，并且在氢气和负载的钴催化剂的存在下含有少量的含有腈的污染物。 在烯烃流中，腈污染物基本上减少，而单烯烃基本上不减少。

    Reduction of nitrile contaminants by selective hydrogenation
    2.
    发明授权
    Reduction of nitrile contaminants by selective hydrogenation 失效
    通过选择性氢化还原腈污染物

    公开(公告)号：US5629451A

    公开(公告)日：1997-05-13

    申请号：US268811

    申请日：1994-06-30

    申请人： Dennis Hearn ,  Kyte H. Terhune

    发明人： Dennis Hearn ,  Kyte H. Terhune

    IPC分类号： C07C253/34 ,  C07C209/48

    CPC分类号： C07C253/34

    摘要： A process for selectively reducing nitrile contaminants in fluids such as water, methanol or hydrocarbon streams containing mono olefins and which contain minor amounts of contaminants comprising nitriles in the presence of hydrogen and a supported cobalt catalyst. In the olefin stream the nitrile contaminants are substantially reduced without substantial reduction of the mono olefins.

    摘要翻译： 选择性地还原流体中的腈污染物的方法，例如含有单烯烃的水，甲醇或烃流，并且在氢气和负载的钴催化剂的存在下含有少量的含有腈的污染物。 在烯烃流中，腈污染物基本上减少，而单烯烃基本上不减少。

    Selective hydrogenation of aromatics contained in hydrocarbon streams
    4.
    发明授权
    Selective hydrogenation of aromatics contained in hydrocarbon streams 失效
    碳氢化合物流中芳烃选择性加氢

    公开(公告)号：US5856602A

    公开(公告)日：1999-01-05

    申请号：US711101

    申请日：1996-09-09

    申请人： Gary R. Gildert ,  Hugh M. Putman ,  Dennis Hearn

    发明人： Gary R. Gildert ,  Hugh M. Putman ,  Dennis Hearn

    IPC分类号： C07C5/10 ,  C07B61/00 ,  C07C7/04 ,  C07C13/18 ,  C10G45/44

    CPC分类号： C10G45/44 ,  Y02P20/127 ,  Y10S203/06

    摘要： A process for the hydrogenation of a selected aromatic, such as benzene contained in a naphtha stream to cyclohexane wherein the distillation column reactor is operated such that the portion of the naphtha containing the benzene is maintained in the catalyst bed such that essentially only benzene is hydrogenated. The reactor is operated at a pressure wherein the reaction mixture is boiling under low hydrogen partial pressure in the range of about 0.1 psi to less than 70 psia at 0 to 350 psig. The catalyst is provided as a catalytic distillation structure such that the reaction is concurrently occurring with a distillation. A portion of the overheads is returned as reflux to provide cooling within the catalyst bed and concurrent condensation of some of the gaseous material within the bed.

    摘要翻译： 将选择的芳族化合物（例如包含在石脑油中的苯）氢化成环己烷的方法，其中操作蒸馏塔反应器，使得含有苯的部分石脑油保持在催化剂床中，使得基本上仅苯被氢化 。 反应器在压力下操作，其中反应混合物在0至350psig下在约0.1psi至小于70psia的低氢分压下沸腾。 提供催化剂作为催化蒸馏结构，使得反应同时进行蒸馏。 塔顶馏出物的一部分作为回流返回，以在催化剂床内提供冷却，同时使一些气态物质在床内冷凝。

    Integrated process for the production of tame
    5.
    发明授权
    Integrated process for the production of tame 失效
    整合生产温驯的过程

    公开(公告)号：US5792891A

    公开(公告)日：1998-08-11

    申请号：US792980

    申请日：1997-02-03

    申请人： John R. Adams ,  Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr. ,  Robert P. Arganbright

    发明人： John R. Adams ,  Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr. ,  Robert P. Arganbright

    IPC分类号： B01D3/00 ,  B01D3/14 ,  C07C41/06 ,  C07C41/42

    CPC分类号： C07C41/06 ,  B01D3/009 ,  B01D3/146 ,  C07C41/42 ,  Y02P20/125 ,  Y02P20/127

    摘要： An alkene skeletal isomerization process is employed in an integrated process for the production of tertiary ether, e.g., tertiary amyl methyl ether (TAME) from the reaction of isoamylenes (iC.sub.5.sup.= 's) with methanol in the presence of an acid cation exchange resin. A light naphtha from a fluid catalytic cracking unit is used as the source of the iC.sub.5.sup.= 's in a process which separates the C.sub.5 containing fraction from the light naphtha, selectively hydrogenates the di-olefins contained in the C.sub.5 containing fraction, reacts the iC.sub.5.sup.= 's contained in the C.sub.5 containing fraction with methanol to form TAME, separates the TAME from the unreacted materials as a product, separates methanol from the unreacted materials, isomerizes a portion of the nC.sub.5.sup.= 's to iC.sub.5.sup.= 's , for example using a zeolite or an alumina treated with methanol, and use of the isomerization product as feed for a TAME reactor.

    摘要翻译： 烯烃骨架异构化方法用于在酸性阳离子交换树脂存在下，从异戊烯（iC5 = s）与甲醇的反应生产叔醚如叔戊基甲基醚（TAME）的一体化方法中。 在将含C5馏分与轻石脑油分离的方法中，使用来自流化催化裂化装置的轻石脑油作为iC5 =的来源，选择性地氢化含C5馏分中所含的二烯烃，使iC5 包含在含甲醇的馏分中形成TAME，将TAME与未反应的物质作为产物分离，从未反应的物质中分离出甲醇，将nC5 =的一部分异构化为iC5 =，例如 使用沸石或用甲醇处理的氧化铝，并使用异构化产物作为TAME反应器的进料。

    Process for producing high purity isoolefins and dimers thereof by dissociation of ethers
    7.
    发明授权
    Process for producing high purity isoolefins and dimers thereof by dissociation of ethers 失效
    通过醚解离生产高纯度异烯烃及其二聚体的方法

    公开(公告)号：US4447668A

    公开(公告)日：1984-05-08

    申请号：US496983

    申请日：1983-05-25

    申请人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

    发明人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

    IPC分类号： C07C1/20 ,  C07C2/28 ,  C07C11/02 ,  C07C1/00

    CPC分类号： C07C11/02 ,  C07C1/20 ,  C07C2/28 ,  C07C2531/08 ,  Y02P20/127

    摘要： Alkyl tertiary butyl ether or alkyl tertiary amyl ether is dissociated by vapor phase contact with a cation acidic exchange resin at temperatures in the range of 150.degree. to 250.degree. F. at LHSV of 0.1 to 20 to produce a stream consisting of unreacted ether, isobutene or isoamylene and an alcohol corresponding to the alkyl radical. After the alcohol is removed, the ether/isoolefin stream may be fractionated to obtain a high purity isoolefin (99+%) or the ether/isoolefin stream can be contacted in liquid phase with a cation acidic exchange resin to selectively dimerize the isoolefin in a highly exothermic reaction, followed by fractionation of the dimerization product to produce high purity diisoolefin (97+%). In the case where the alkyl is C.sub.3 to C.sub.6 and the corresponding alcohol is produced on dissociation of the ether, combined dissociation-distillation may be carried out such that isoolefin is the overhead product and alcohol the bottom.

    摘要翻译： 烷基叔丁基醚或烷基叔戊基醚通过与阳离子酸性交换树脂在150至250°F的温度下以0.1至20的LHSV气相接触而解离，以产生由未反应的醚，异丁烯 或异戊烯和对应于烷基的醇。 在除去醇之后，可以分离乙醚/异烯烃流以获得高纯度异烯烃（99 +％），或者乙醚/异烯烃流可以与阳离子酸性交换树脂液相接触，以选择性地使异烯烃二聚 高度放热反应，然后分馏二聚产物以产生高纯度二异氰酸酯（97 +％）。 在烷基为C 3至C 6的情况下，并且在醚的解离时产生相应的醇，可以进行组合的解离 - 蒸馏，使得异烯烃为塔顶产物，醇为底部。