利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.016 秒)

    Method for producing ethylbenzene
    3.
    发明授权
    Method for producing ethylbenzene 失效
    乙苯生产方法

    公开(公告)号：US06252126B1

    公开(公告)日：2001-06-26

    申请号：US09218840

    申请日：1998-12-22

    申请人： David Netzer

    发明人： David Netzer

    IPC分类号： B01J1000

    CPC分类号： C07C15/073 ,  B01D3/009 ,  C07C7/00 ,  C07C7/09 ,  Y02P20/127 ,  C07C15/04

    摘要： An ethylbenzene production system comprises a reactor vessel, a vapor phase ethylene feed stream, a benzene feed stream entering the reactor vessel, and a product stream containing ethylbenzene exiting the reactor vessel. The reactor vessel has an ethylation section and a benzene stripping section, whereby fluid communication via integrated vapor and liquid traffic is maintained between the ethylation section and stripping section. The vapor phase ethylene feed stream contains 3 to 50 mol % ethylene and at least 20 mol % methane entering the reactor vessel.

    摘要翻译： 乙苯生产系统包括反应器容器，气相乙烯进料流，进入反应器容器的苯进料流和离开反应器容器的含乙苯的产物流。 反应器容器具有乙基化部分和苯汽提部分，由此在乙基化部分和汽提部分之间保持通过蒸汽和液体流动的流体连通。 气相乙烯进料流含有3至50mol％的乙烯和至少20mol％的进入反应器容器的甲烷。

    Apparatus for the production of aromatic acids
    4.
    发明授权
    Apparatus for the production of aromatic acids 失效
    用于生产芳香酸的装置

    公开(公告)号：US06761860B2

    公开(公告)日：2004-07-13

    申请号：US10162777

    申请日：2002-06-03

    申请人： Franco Codignola ,  Antonio Moro

    发明人： Franco Codignola ,  Antonio Moro

    IPC分类号： B01J1000

    CPC分类号： C07C51/265 ,  B01J8/006 ,  B01J19/1862 ,  B01J2219/00006 ,  B01J2219/00103 ,  B01J2219/00105 ,  B01J2219/00162 ,  C07C63/26 ,  C07C63/24

    摘要： A description is given here of a novel process for the production of monocarboxylic and polycarboxylic aromatic acids by the catalytic oxidation in homogeneous phase of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. The novel process according to the present invention comprises the steps of: a) catalytically oxidizing the corresponding aromatic precursors in liquid phase in the presence of gaseous oxygen; b) filtering the end product; c) recycling into the oxidation reactor at least part of the mother liquors resulting from the filtration stage, and is characterized by the fact that said steps from (a) to (c) are carried out in a closed and continuous cycle operating substantially under the same pressure and temperature conditions, preferably at 2-10 barg and 100-140° C.

    摘要翻译： 这里给出了通过在至少一个直接连接到相应芳香核的碳原子上的可氧化取代基的芳族化合物的均相中通过催化氧化制备单羧酸和多元羧酸芳香酸的新方法。 根据本发明的新方法包括以下步骤：a）在气态氧的存在下以液相催化氧化相应的芳族前体; b）过滤最终产品; c）将由过滤阶段产生的至少部分母液再循环到氧化反应器中，其特征在于以下事实：（a）至（c）的所述步骤在基本上在 相同的压力和温度条件，优选2-10巴和100-140℃

    Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide
    6.
    发明授权
    Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide 有权
    用于处理含有硫化氢和二氧化硫的气体的装置

    公开(公告)号：US06210454B1

    公开(公告)日：2001-04-03

    申请号：US09303562

    申请日：1999-05-03

    申请人： Jean-Charles Viltard ,  Claude Dezael ,  Fabrice Lecomte

    发明人： Jean-Charles Viltard ,  Claude Dezael ,  Fabrice Lecomte

    IPC分类号： B01J1000

    CPC分类号： B01D53/523 ,  C01B17/05

    摘要： An apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide, comprising a liquid-gas reactor-contactor (2), means (3) for supplying gas to be treated and means (1) for supplying an organic solvent containing a catalyst, means (25) for recovering sulphur an doutlet means (20) for a gaseous effluent containing sulphur in vapour form, the apparatus being characterized in that it comprises at least one means (7) for contacting and cooling the gaseous effluent, delivering a three-phase effluent, having an inlet connected to the effluent outlet means (20) and to means (6, 13) for recycling a cooling solvent, means (30) for separating said three-phase effluent connected to the cooling means, adapted to separate purified gas from sulphur and comprising means (17) for evacuating purified gas, means (15) for extracting sulphur and means (14) for recovering solvent connected to the means (6, 13) for recycling the cooling solvent.

    摘要翻译： 一种用于处理含有硫化氢和二氧化硫的气体的装置，包括液 - 气反应器 - 接触器（2），用于供应待处理气体的装置（3）和用于供应含有催化剂的有机溶剂的装置（1） （25），用于回收硫，用于含有蒸汽形式的硫的气态流出物的装置（20），所述装置的特征在于，其包括用于接触和冷却气态流出物的至少一个装置（7），输送三相 流出物，其具有连接到流出物出口装置（20）的入口和用于再循环冷却溶剂的装置（6,13），用于分离连接到冷却装置的三相流出物的装置（30），适于分离净化气体 来自硫并且包括用于抽空净化气体的装置（17），用于提取硫的装置（15）和用于回收与用于再循环冷却溶剂的装置（6,13）连接的溶剂的装置（14）。

    Urea synthesis apparatus
    7.
    发明授权
    Urea synthesis apparatus 有权
    尿素合成装置

    公开(公告)号：US06200540B1

    公开(公告)日：2001-03-13

    申请号：US09307807

    申请日：1999-05-10

    申请人： Yasuhiko Kojima ,  Hidetsugu Fujii

    发明人： Yasuhiko Kojima ,  Hidetsugu Fujii

    IPC分类号： B01J1000

    CPC分类号： C07C273/04 ,  B01D5/0063 ,  B01J19/006 ,  B01J2219/00006 ,  B01J2219/00108 ,  B01J2219/0011 ,  B01J2219/00777

    摘要： A vertical condenser is installed on or above a urea synthesis column to condense the mixed gas from the stripper by bringing it into contact with an absorption medium under cooling. A first down pipe for making the top part of the condenser communicate with the bottom part of the synthesis column is provided to allow the resultant condensate to flow down to the bottom part of the synthesis column by gravity. The condensate is subjected to urea synthesis together with feed ammonia or a part of feed carbon dioxide supplied thereto. The urea synthesis solution thus formed is introduced into the stripper by gravity through a second down pipe having an opening in the top part of the synthesis column. Unreacted ammonia and carbon dioxide are separated as the aforesaid mixed gas by the rest of the feed carbon dioxide and introduced into the bottom part of the aforesaid condenser so as to be condensed. Alternatively, the condensate from the vertical condenser is sucked by means of an ejector using preheated feed liquid ammonia as the driving fluid, so that it is introduced into the bottom part of the urea synthesis column and is subjected to urea synthesis.

    摘要翻译： 立式冷凝器安装在尿素合成塔上或上方，通过使其与冷却下的吸收介质接触而将来自汽提塔的混合气体冷凝。 提供用于使冷凝器的顶部与合成塔的底部连通的第一下管，以使所得的冷凝物通过重力向下流到合成塔的底部。 冷凝物与供给氨或供给二氧化碳的一部分进行尿素合成。 如此形成的尿素合成溶液通过重力通过在合成塔的顶部具有开口的第二下管引入汽提器。 未反应的氨和二氧化碳作为前述混合气体被剩余的进料二氧化碳分离，并被引入上述冷凝器的底部以便冷凝。 或者，来自垂直冷凝器的冷凝物借助于使用预热的进料液氨作为驱动流体的喷射器吸入，从而将其引入到尿素合成塔的底部并进行尿素合成。