DEISOBUTENIZER
    1.
    发明申请
    DEISOBUTENIZER 审中-公开

    公开(公告)号:WO2010090790A1

    公开(公告)日:2010-08-12

    申请号:PCT/US2010/020585

    申请日:2010-01-11

    Abstract: A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a lower portion of the first column.

    Abstract translation: 一种从正丁烯中分离异丁烯的方法,包括:将氢气和包含异丁烯,1-丁烯和2-丁烯的进料流引入到包含在第一压力下运行的加氢异构化催化剂的反应区的第一塔中,同时:(i )将至少一部分1-丁烯转化为2-丁烯,和(ii)从2-丁烯中分离异丁烯; 从第一塔回收包含异丁烯的第一塔顶馏分; 从第一塔回收包含异丁烯,2-丁烯和未反应的1-丁烯的第一塔底馏分; 将第一塔底馏分引入第二塔的顶部,其包括在低于第一压力的第二压力下操作的分馏塔; 将第一塔底馏分分离成包含异丁烯和1-丁烯的第二塔顶馏分和包含2-丁烯的第二塔底馏分; 压缩第二开销部分; 并将压缩的第二塔顶馏分引入第一塔的下部。

    PROCESS FOR BENZENE REMOVAL FROM GASOLINE
    2.
    发明申请
    PROCESS FOR BENZENE REMOVAL FROM GASOLINE 审中-公开
    苯酚从汽油中除去的方法

    公开(公告)号:WO2009108655A2

    公开(公告)日:2009-09-03

    申请号:PCT/US2009/035059

    申请日:2009-02-25

    Abstract: A process for the reduction of benzene in a gasoline stream, the process including: feeding a gasoline fraction including benzene and C6+ hydrocarbons and at least one of an alcohol and an ether to a catalytic distillation column comprising at least one reaction zone containing an alkylation catalyst, wherein the at least one reaction zone is above a gasoline fraction feed location; concurrently in the catalytic distillation column: separating the C6 hydrocarbons from C7+ hydrocarbons, wherein the C6 hydrocarbons and benzene distill upward into the at least one reaction zone; contacting benzene and the at least one of an alcohol and an ether in the at least one reaction zone in the presence of the alkylation catalyst to convert at least a portion of the benzene and alcohol /ether to an alkylate; recovering an overheads fraction including C6 hydrocarbons, any unreacted alcohol and ether, and water; and recovering a bottoms fraction including C7+ hydrocarbons and the alkylate.

    Abstract translation: 一种用于还原汽油流中的苯的方法,该方法包括:将包含苯和C6 +烃和至少一种醇和醚的汽油馏分进料到包含至少一个含有烷基化催化剂的反应区的催化蒸馏塔中 其中所述至少一个反应区位于汽油馏分进料位置之上; 同时在催化蒸馏塔中:将C6烃与C7 +烃分离,其中C6烃和苯向上蒸馏入至少一个反应区; 在所述烷基化催化剂的存在下,在所述至少一个反应区中使苯和所述至少一种醇和醚接触,以将至少一部分所述苯和醇/醚转化成烷基化物; 回收塔顶馏分,包括C6烃,任何未反应的醇和醚和水; 并回收包括C7 +烃和烷基化物的塔底馏分。

    PROCESS FOR PRODUCING ALKYLBENZENE
    3.
    发明申请
    PROCESS FOR PRODUCING ALKYLBENZENE 审中-公开
    生产烷基苯的方法

    公开(公告)号:WO2005005350A2

    公开(公告)日:2005-01-20

    申请号:PCT/US2004/020811

    申请日:2004-06-28

    Abstract: A process for producing an alkylbenzene from an alkylphenyl alcohol comprising the steps of: (a) feeding a feed stream comprising alkylphenyl a reactor having a catalytic distillation zone; and, (b) concurrently in the reactor (i) contacting the feed stream comprising alkylphenyl alcohol with hydrogen in the catalytic distillation zone to convert alkylphenyl alcohol to alkylbenzene over a catalyst comprising Group VIII or a Group IB metal; and, (ii) separating alkylbenzene from the reaction mixture by fractional distillation to produce an overhead stream comprising alkylbenzene having a reduced concentration of alkylphenyl alcohol than the feed stream from the distillation column reactor. Examples of the alkylphenyl alcohol include cumyl alcohol, phenyl ethyl alcohol, or di(2-hydroxyl 2-propyl)benzene, and that for the alkylbenzene include cumene and di­ethyl benzene, or di(2-hydroxyl-2-propyl) benzene.

    Abstract translation: 一种由烷基苯酚生产烷基苯的方法,其包括以下步骤:(a)将包含烷基苯基的进料流加入具有催化蒸馏区的反应器中; (b)同时在反应器中(i)使包含烷基苯醇的进料流与氢在催化蒸馏区中接触以通过包含VIII族或IB族金属的催化剂将烷基苯基醇转化为烷基苯; 和(ii)通过分馏从反应混合物中分离烷基苯以产生包含烷基苯的浓度低于来自蒸馏塔反应器的进料流的烷基苯的塔顶料流。 烷基苯酚的例子包括枯烯醇,苯基乙醇或二(2-羟基2-丙基)苯,烷基苯的例子包括枯烯和二异丙苯;乙苯或二(2-羟基-2-丙基)苯

    PRODUCTION OF DIISOBUTENE FROM TERTIARY BUTYL ALCOHOL
    4.
    发明申请
    PRODUCTION OF DIISOBUTENE FROM TERTIARY BUTYL ALCOHOL 审中-公开
    从仲丁醇生产双氧水

    公开(公告)号:WO2004080931A3

    公开(公告)日:2005-01-06

    申请号:PCT/US2004006375

    申请日:2004-03-02

    Inventor: SMITH LAWRENCE A

    CPC classification number: C07C2/28 C07C2531/10 Y02P20/127 Y10S203/06 C07C11/02

    Abstract: A process for the production of diisobutene is disclosed wherein tertiary butyl alcohol is dehydrated to isobutene in a distillation column reactor containing an acid cation exchange resin catalyst in the form of catalytic distillation structure. The isobutene reacts with itself in the presence of the catalyst to form primarily diisobutene which is removed as bottoms from the distillation column reactor with the bulk of the water. Unreacted isobutene along with an azeotrope of water is removed as overheads with the water being separated and removed from the unreacted isobutene. A portion or all of the unreacted isobutene may be returned to the distillation column reactor as reflux.

    Abstract translation: 公开了制备二异丁烯的方法,其中叔丁醇在含有催化蒸馏结构形式的酸性阳离子交换树脂催化剂的蒸馏塔反应器中脱水至异丁烯。 异丁烯在催化剂的存在下与其自身反应,主要形成二异丁腈,二异丁烯作为底部馏分从蒸馏塔反应器中以大部分水除去。 将未反应的异丁烯与水的共沸物一起作为塔顶馏出物除去水分,并从未反应的异丁烯中除去。 一部分或全部未反应的异丁烯可以作为回流返回到蒸馏塔反应器。

    PRODUCTION OF POLYAMIDES BY REACTIVE DISTILLATION
    5.
    发明申请
    PRODUCTION OF POLYAMIDES BY REACTIVE DISTILLATION 审中-公开
    聚酰胺的反应精馏生产情况

    公开(公告)号:WO99043732A1

    公开(公告)日:1999-09-02

    申请号:PCT/EP1998/008239

    申请日:1998-12-16

    CPC classification number: B01D3/141 C08G69/00 C08G69/04 Y02P20/127 Y10S203/06

    Abstract: The invention relates to a method for producing polyamides, their oligomers or their mixtures, possibly with other reaction products, by reacting aminonitriles (A) and possibly other polyamide-forming monomers and/or oligomers with water (D) by reactive distillation. The reaction product (P) is extracted from the column bottom in the reactive distillation device and resulting ammonia (N), as well as possibly other resulting compounds having a low molecular weight, and water are withdrawn at the head of the column.

    Abstract translation: 聚酰胺,其低聚物或它们的混合物的制备方法,如果合适的话与其它反应产物,进行了通过氨基腈(A)和任选的其它聚酰胺形成在反应蒸馏与水(D)的单体和/或低聚物,其中(在该反应性蒸馏设备中,反应产物的反应 P)从底部和形成氨(N),和任选的其它的低分子量化合物和水排出的塔顶除去。

    APPARATUS AND PROCESS FOR CATALYTIC DISTILLATIONS
    6.
    发明申请
    APPARATUS AND PROCESS FOR CATALYTIC DISTILLATIONS 审中-公开
    催化蒸馏装置和方法

    公开(公告)号:WO99005083A1

    公开(公告)日:1999-02-04

    申请号:PCT/US1998/014739

    申请日:1998-07-20

    Abstract: A process for selectively treating the components in a multi-component stream in a distillation column reactor (10). Additional catalytic distillation structures (12, 14) are placed as a secondary bed in the distillation column, either above or below the primary bed (12, 14), and the selected component withdrawn (4) after reaction in the primary bed to prevent its entry into the secondary bed.

    Abstract translation: 一种在蒸馏塔反应器(10)中选择性处理多组分流中的组分的方法。 另外的催化蒸馏结构(12,14)作为辅助床放置在蒸馏塔中,在主床(12,14)的上方或下方,并且在初级床中反应后将所选择的组分取出(4)以防止其 进入二级床。

    PROCESS FOR PREPARING AROMATIC CARBOXYLIC ACIDS WITH EFFICIENT ENERGY RECOVERY
    8.
    发明申请
    PROCESS FOR PREPARING AROMATIC CARBOXYLIC ACIDS WITH EFFICIENT ENERGY RECOVERY 审中-公开
    制备具有有效能源回收的芳香羧酸的方法

    公开(公告)号:WO1996011899A1

    公开(公告)日:1996-04-25

    申请号:PCT/US1995012255

    申请日:1995-09-22

    Abstract: A process for preparing aromatic carboxylic acids by the exothermic liquid-phase oxidation reaction of an aromatic feedstock compound, wherein energy is efficiently recovered from the exothermic oxidation reaction, particularly by the use of a high efficiency distillation column for the removal of the carboxylic acid solvent and by the use of an expander for energy recovery from the high pressure offgas.

    Abstract translation: 通过芳族原料化合物的放热液相氧化反应制备芳族羧酸的方法,其中能量从放热氧化反应有效地回收,特别是通过使用高效蒸馏塔除去羧酸溶剂 并通过使用膨胀机从高压废气中回收能量。

    CONCENTRATION OF RADIOACTIVE LIQUID WASTE
    9.
    发明申请
    CONCENTRATION OF RADIOACTIVE LIQUID WASTE 审中-公开
    放射性液体废物的浓度

    公开(公告)号:WO1990007186A1

    公开(公告)日:1990-06-28

    申请号:PCT/DE1989000775

    申请日:1989-12-13

    Inventor: NOELL GMBH

    CPC classification number: G21F9/08 Y10S159/12 Y10S203/06

    Abstract: In a process for concentrating liquid waste containing boron compounds and radionuclides, the liquid waste is evaporated to dryness to obtain a concentrate, alcohol is added in a further intermediate reaction to produce the boric acid ester, the other residues are separated and the residues containing radionuclides are disposed of.

    Abstract translation: 在含有硼化合物和放射性核素的液体废物浓缩过程中,将液体废物蒸发至干,得到浓缩物,在另外的中间反应中加入醇以制备硼酸酯,其余残余物被分离,残余物含有放射性核素 被处置了。

    PROCESS FOR THE PREPARATION OF METHYL ACETATE
    10.
    发明申请
    PROCESS FOR THE PREPARATION OF METHYL ACETATE 审中-公开
    制备乙酸甲酯的方法

    公开(公告)号:WO1983003825A1

    公开(公告)日:1983-11-10

    申请号:PCT/US1983000361

    申请日:1983-03-16

    CPC classification number: C07C69/14 C07C67/08 Y02P20/127 Y10S203/06

    Abstract: A process for preparing methyl acetate of high purity at high reactant conversions. In this process glacial acetic acid is reacted with methanol to form methyl acetate and it is also used as an extractive agent for water and/or methanol. The glacial acetic acid is continuously reacted with at least a stoichiometric amount of methanol in a reaction zone in the presence of an acidic catalyst. A methyl acetate stream is continuously removed from the zone by distillation. The glacial acetic acid and methanol are countercurrently flowed into the reaction zone and the residence time of the reacting liquids in the zone is selected to permit the glacial acetic acid to function as an extractive agent for water and/or methanol. In operation, there is intimate contact between the glacial acetic acid and the methanol and also between the acid and azeotropes (methyl acetate/water and methyl acetate/methanol azeotropes) which form in the reaction zone. Such azeotropes are "broken" by extraction with the glacial acetic acid and also by the reaction of such acid with methanol in the methyl acetate/methanol azeotropes.

    Abstract translation: 在高反应物转化率下制备高纯度乙酸甲酯的方法。 在该方法中,将冰醋酸与甲醇反应形成乙酸甲酯,并且还用作水和/或甲醇的萃取剂。 在酸性催化剂存在下,冰醋酸与反应区中至少化学计量的甲醇连续反应。 通过蒸馏从该区域连续除去乙酸甲酯料流。 冰醋酸和甲醇逆流流入反应区,选择反应液体在该区域的停留时间,以使冰醋酸作为水和/或甲醇的萃取剂。 在操作中,冰醋酸和甲醇之间以及在反应区中形成的酸和共沸物(乙酸甲酯/水和乙酸甲酯/甲醇共沸物)之间存在紧密接触。 这种共沸物通过用冰醋酸提取以及在乙酸甲酯/甲醇共沸物中通过这种酸与甲醇的反应而“破碎”。

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