利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

18 条记录 (耗时 0.018 秒)

    Process and apparatus for preparing tertiary alkyl ether
    2.
    发明授权
    Process and apparatus for preparing tertiary alkyl ether 失效
    叔烷基醚的制备方法和装置

    公开(公告)号：US5637777A

    公开(公告)日：1997-06-10

    申请号：US302837

    申请日：1994-09-16

    申请人： Juhani Aittamaa ,  Isto Eilos ,  Juha Jakkula ,  Petri Lindqvist

    发明人： Juhani Aittamaa ,  Isto Eilos ,  Juha Jakkula ,  Petri Lindqvist

    IPC分类号： B01J31/10 ,  B01D3/00 ,  C07B61/00 ,  C07C41/06 ,  C07C41/42 ,  C07C43/04 ,  C07C43/00

    CPC分类号： C07C41/42 ,  B01D3/009 ,  C07C41/06 ,  Y02P20/127 ,  Y10S203/06 ,  Y10S203/17 ,  Y10S203/20

    摘要： The invention concerns a process and an apparatus for preparing tertiary ethers. According to the process, C.sub.4 to C.sub.6 isoolefins and possibly heavier olefins contained in the feedstock are reacted with lower aliphatic alcohols, in particular methanol or ethanol, in a catalytic distillation reactor system in order to produce the corresponding ethers. According to the invention, the reaction between the isoolefins and the alcohols is essentially carried out in at least one reactor (5-7) of the kind, which is combined with a distillation column (3) intended for product separation, by conducting at least a part of the liquid flow of the column through the reactor and returning it to a lower tray than the one from which it was taken. At least half of cation exchange resin is placed in the side reactor (5-7). In the process according to the invention, the catalyst can be rapidly changed without stopping the process. In order to improve conversion additional alcohol can be fed to at least one of the side reactors.

    摘要翻译： PCT No.PCT / FI93 / 00097 Sec。 371日期1994年9月16日 102（e）日期1994年9月16日PCT 1993年3月18日PCT公布。 公开号WO93 / 19031 日期1993年9月30日本发明涉及一种制备叔醚的方法和装置。 根据该方法，原料中所含的C4至C6异烯烃和可能较重的烯烃在催化蒸馏反应器系统中与低级脂族醇，特别是甲醇或乙醇反应，以产生相应的醚。 根据本发明，异烯烃和醇之间的反应基本上在至少一个与用于产物分离的蒸馏塔（3）组合的反应器（5-7）中进行，至少通过至少 柱的液体流的一部分通过反应器并将其返回到比从其取出的塔的下部托盘。 将至少一半的阳离子交换树脂置于侧反应器（5-7）中。 在根据本发明的方法中，可以快速改变催化剂而不停止该方法。 为了改善转化率，另外的醇可以进料至至少一个侧反应器。

    Process for preparing alkyl ethers
    5.
    发明授权
    Process for preparing alkyl ethers 失效
    制备烷基醚的方法

    公开(公告)号：US5536886A

    公开(公告)日：1996-07-16

    申请号：US305920

    申请日：1994-09-16

    申请人： Esa Tamminen ,  Juhani Aittamaa ,  Juha Jakkula

    发明人： Esa Tamminen ,  Juhani Aittamaa ,  Juha Jakkula

    IPC分类号： B01J31/10 ,  B01D3/00 ,  C07B61/00 ,  C07C41/06 ,  C07C41/42 ,  C07C43/04

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

    摘要： The invention relates to a process for preparing tertiary alkyl ethers. According to the process the feedstock containing hydrocarbons is fed to a catalytic distillation reactor system, in which the isoolefines, in particular the C.sub.4 to C.sub.7 isoolefines, of the feed are reacted with an alkanol in the presence of a cation exchange resin in order to produce tertiary alkyl ether products. The reaction product containing the ethers is removed from the distillation system as the bottoms product and, if necessary, it is subjected to an additional treatment for producing a gasoline component. The unreacted alkanol is removed as the overhead product of the distillation. According to the invention, the distillate withdrawn mainly contains an azeotrope of C.sub.4 hydrocarbons and alkanol, the C.sub.4 amount of which at least approximately corresponds to the C.sub.4 hydrocarbon concentration of the hydrocarbon feed, a substantial amount of the unreacted alkanol being removed in the form of said azeotrope. By means of the invention the need for a separate alkanol washing unit is eliminated in the apparatus which considerably reduces apparatus investment costs.

    摘要翻译： 本发明涉及一种制备叔烷基醚的方法。 根据该方法，将含有烃的原料进料到催化蒸馏反应器系统中，其中进料的异烯烃，特别是C4至C7异烯烃在阳离子交换树脂的存在下与烷醇反应，以产生 叔烷基醚产物。 含有醚的反应产物作为塔底产物从蒸馏系统中除去，如果需要，将其进行额外处理以生产汽油组分。 将未反应的链烷醇作为蒸馏塔顶产物除去。 根据本发明，取出的馏出物主要含有C 4烃和链烷醇的共沸物，其C4量至少近似对应于烃进料的C 4烃浓度，大量未反应的链烷醇以 说共沸物。 通过本发明，在装置中消除了对单独的烷醇洗涤单元的需求，这大大降低了设备的投资成本。

    Process for producing a fuel component
    9.
    发明授权
    Process for producing a fuel component 有权
    燃料成分的制造方法

    公开(公告)号：US06613108B1

    公开(公告)日：2003-09-02

    申请号：US09343559

    申请日：1999-06-30

    申请人： Juhani Aittamaa ,  Juha Jakkula ,  Petri Lindqvist ,  Matti Koskinen ,  Juha Linnekoski ,  Outi Krause ,  Mauri Sourander ,  Jyrki Ignatius ,  Antti Pyhälahti

    发明人： Juhani Aittamaa ,  Juha Jakkula ,  Petri Lindqvist ,  Matti Koskinen ,  Juha Linnekoski ,  Outi Krause ,  Mauri Sourander ,  Jyrki Ignatius ,  Antti Pyhälahti

    IPC分类号： C10L118

    CPC分类号： C10G50/00 ,  C07C2/08 ,  C07C9/21 ,  C07C11/02 ,  C10L1/023 ,  C10L1/06

    摘要： The invention relates to process for dimerizing olefinic hydrocarbon feedstock, to hydrocarbon compositions and to fuel components produced by the process. According to the invention, fresh olefinic hydrocarbon feedstock is fed to a reaction zone of a system including at least one reaction zone and at least one distillation zone. The olefinic hydrocarbon feedstock is contacted with an acidic catalyst in the presence of an oxygenate at conditions in which at least a part of the olefins dimerizes. The effluent from the reaction zone is conducted to the distillation zone where dimerized reaction product is separated from effluent, and at least one flow comprising oxygenate is withdrawn from the side of at least one distillation column. The flow is circulated from distillation zone back to dimerization. The reaction mixture is recovered and optionally hydrogenated to form a parafinic reaction product.

    摘要翻译： 本发明涉及二烯烃烯烃原料，烃类组合物和通过该方法生产的燃料组分的方法。 根据本发明，将新鲜的烯烃原料进料至包含至少一个反应区和至少一个蒸馏区的体系的反应区。 在至少部分烯烃二聚的条件下，烯烃原料在含氧化合物的存在下与酸性催化剂接触。 将来自反应区的流出物进入蒸馏区，其中二聚反应产物与流出物分离，并且至少一个包含含氧化合物的流从至少一个蒸馏塔的一侧排出。 流量从蒸馏区循环回二聚。 将反应混合物回收并任选地氢化以形成路旁反应产物。