Process and device for separating ethane and ethylene from a steam-cracking effluent by solvent absorption and hydrogenation of the solvent phase
    1.
    发明授权
    Process and device for separating ethane and ethylene from a steam-cracking effluent by solvent absorption and hydrogenation of the solvent phase 失效
    通过溶剂吸收和溶剂相氢化从蒸汽裂解流出物中分离乙烷和乙烯的方法和装置

    公开(公告)号:US06340429B1

    公开(公告)日:2002-01-22

    申请号:US09638895

    申请日:2000-08-16

    IPC分类号: C10G6704

    CPC分类号: C10G70/00

    摘要: A process for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent (1) is absorbed in an absorption column by a cooled solvent (9). At the bottom of the column, the liquid phase that contains the solvent and the C2+ hydrocarbons is recovered and hydrogenated (15). The hydrogenation effluent that contains the solvent is introduced into a first distillation column (16). Ethane-ethylene mixture (17) is drawn off laterally from the column, and a phase (19) that contains the solvent and hydrocarbons with at least 3 carbon atoms is drawn off at the bottom of the column. This phase (19) is separated in a second distillation column (22), and C3+ hydrocarbons and, at the bottom of the column, regenerated solvent (26) that is cooled and that is recycled (9, 52) in the absorption column are collected.

    摘要翻译: 描述了从烃蒸汽裂解流出物中分离乙烷和乙烯的方法。 流出物(1)通过冷却的溶剂(9)吸收在吸收塔中。 在塔底部,回收含有溶剂和C2 +烃的液相并氢化(15)。 将含有溶剂的加氢流出物引入第一蒸馏塔(16)。 乙烷 - 乙烯混合物(17)从塔侧向抽出,含有溶剂的相(19)和至少有3个碳原子的烃在塔的底部排出。 该相(19)在第二蒸馏塔(22)中分离,并且C3 +烃,并且在塔的底部,在吸收塔中被冷却并再循环(9,52)的再生溶剂(26)是 集。

    Process for separating ethane and ethylene by solvent absorption and hydrogenation of the solvent phase
    2.
    发明授权
    Process for separating ethane and ethylene by solvent absorption and hydrogenation of the solvent phase 失效
    通过溶剂吸收和溶剂相氢化分离乙烷和乙烯的方法和装置

    公开(公告)号:US06358399B1

    公开(公告)日:2002-03-19

    申请号:US09638896

    申请日:2000-08-16

    IPC分类号: C10G2128

    CPC分类号: C10G70/02 C07C7/005

    摘要: A process and a device for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent (1) is absorbed in an absorption column (7) by a cooled solvent (9). At the bottom of the column, liquid phase (12) that contains the solvent and the C2+ hydrocarbons is recovered and hydrogenated (15). The hydrogenation effluent that contains the solvent is introduced into a first distillation column (70) where the solvent is regenerated. The solvent is cooled and recycled at the top of absorption column (7). The C2+ hydrocarbons are collected at the top, and a condensed liquid phase is distilled in a second distillation column (77) to recover a C2 fraction that consists of ethane and ethylene.

    摘要翻译: 描述了一种用于从烃蒸汽裂解流出物中分离乙烷和乙烯的方法和装置。 流出物(1)通过冷却的溶剂(9)吸收在吸收塔(7)中。 在塔的底部,回收含有溶剂和C2 +烃的液相(12)并氢化(15)。 将含有溶剂的加氢流出物引入第一蒸馏塔(70)中,其中再生溶剂。 将溶剂冷却并在吸收塔(7)的顶部再循环。 在顶部收集C2 +烃,并在第二蒸馏塔(77)中蒸馏冷凝的液相,以回收由乙烷和乙烯组成的C2馏分。

    Process for converting hydrocarbons by treatment in a distillation zone comprising withdrawing a stabilized distillate, associated with a reaction zone, and its use for hydrogenating benzene
    3.
    发明授权
    Process for converting hydrocarbons by treatment in a distillation zone comprising withdrawing a stabilized distillate, associated with a reaction zone, and its use for hydrogenating benzene 有权
    通过在蒸馏区中处理来转化烃的方法,包括萃取与反应区相关的稳定的馏出物及其用于苯化氢的用途

    公开(公告)号:US06261442B1

    公开(公告)日:2001-07-17

    申请号:US09285679

    申请日:1999-04-05

    IPC分类号: C10G700

    CPC分类号: C10G49/00 C10G45/44

    摘要: The invention provides a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing an overhead vapour distillate and a bottom effluent, associated with an at least partially external reaction zone comprising at least one catalytic bed, in which at least one reaction for converting at least a portion of at least one hydrocarbon is carried out in the presence of a catalyst and a gas stream comprising hydrogen, the feed for the reaction zone being drawn off at the height of at least one draw-off level and representing at least a portion of the liquid flowing in the distillation zone, at least part of the effluent from the reaction zone being re-introduced into the distillation zone at the height of at least one re-introduction level, so as to ensure continuity of the distillation, said process being characterized in that a liquid distillate is withdrawn from the distillation zone at the height of at least one withdrawal level, said level being located below the vapour distillate withdrawal level. This process can be used to reduce the benzene content in a hydrocarbon cut.

    摘要翻译: 本发明提供了一种转化烃进料的方法,其中所述进料在蒸馏区中处理,产生塔顶蒸馏馏出物和底部流出物,其与包含至少一个催化床的至少部分外部反应区相关联,其中至少 用于转化至少一种至少一种烃的一种反应是在催化剂和包含氢的气流的存在下进行的,反应区的进料在至少一个排出水平的高度被排出, 代表在蒸馏区中流动的液体的至少一部分,至少部分来自反应区的流出物在至少一个再引入水平的高度被重新引入蒸馏区,以确保连续性 所述方法的特征在于,在至少一个提取水平的高度处从蒸馏区中取出液体馏出物, g位于蒸汽馏出物提取水平以下。 该方法可用于降低烃馏分中的苯含量。

    Process for eliminating polar compounds on an etherification unit
    4.
    发明授权
    Process for eliminating polar compounds on an etherification unit 有权
    在醚化装置上消除极性化合物的方法

    公开(公告)号:US06278029B1

    公开(公告)日:2001-08-21

    申请号:US09212267

    申请日:1998-12-16

    IPC分类号: C07C4134

    CPC分类号: B01D3/143

    摘要: A process for eliminating at least pollutants including polar compounds present in a first fluid, with said first fluid sent to a subsequent treatment, e.g., an etherification process: a) the first fluid containing pollutants is contacted with an auxiliary fluid such as a vapor phase, under operating conditions that are selected so as to obtain, at the end of this first stage, said first fluid that is purified and freed of, for the most part, pollutants, and a vapor phase that is loaded with pollutants, said vapor phase being produced during one phase of the process, and b) at least a portion of said first purified fluid is recycled to a subsequent treatment stage.

    摘要翻译: 一种用于消除至少包含存在于第一流体中的极性化合物的污染物的方法,其中所述第一流体被输送到随后的处理,例如醚化过程:a)含有污染物的第一流体与辅助流体例如气相 在选择的操作条件下,在第一阶段结束时获得被净化并且大部分被污染物排出的第一流体和装载有污染物的气相,所述气相 在该过程的一个阶段期间产生,以及b)将所述第一纯化流体的至少一部分再循环到随后的处理阶段。

    Process for converting hydrocarbons by treatment in a distillation zone comprising a circulating reflux, associated with a reaction zone, and its use for hydrogenating benzene
    6.
    发明授权
    Process for converting hydrocarbons by treatment in a distillation zone comprising a circulating reflux, associated with a reaction zone, and its use for hydrogenating benzene 有权
    通过在包含与反应区相关联的循环回流的蒸馏区中处理来转化烃的方法及其用于使苯氢化的方法

    公开(公告)号:US06174428B1

    公开(公告)日:2001-01-16

    申请号:US09285777

    申请日:1999-04-05

    IPC分类号: C10G700

    CPC分类号: C10G45/44 C10G49/00

    摘要: The invention provides a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing a bottom effluent and a vapour distillate, associated with an at least partially external reaction zone comprising at least one catalytic bed, in which at least one reaction for converting at least a portion of at least one hydrocarbon is carried out in the presence of a catalyst and a gas stream comprising hydrogen, the feed for the reaction zone being drawn off at the height of at least one draw-off level and representing at least a portion of the liquid flowing in the distillation zone, at least part of the effluent from the reaction zone being re-introduced into the distillation zone at the height of at least one re-introduction level, so as to ensure continuity of the distillation, and so as to withdraw a distillate from the distillation zone and to recover a bottom effluent from the bottom of the distillation zone, said process being characterized in that the temperature of the portion of effluent re-introduced into the distillation zone is lower than that of the feed to the reaction zone drawn off at the height of a draw-off level located below the re-introduction level. This process can be used to reduce the benzene content in a hydrocarbon cut.

    摘要翻译: 本发明提供了一种转化烃进料的方法,其中所述进料在蒸馏区中处理,产生底部流出物和蒸气馏出物,其与包含至少一个催化床的至少部分外部反应区相关联,其中至少一个 用于转化至少一部分至少一种烃的反应在催化剂和包含氢气的气流的存在下进行,反应区的进料在至少一个排出水平的高度被排出,并表示 在蒸馏区中流动的液体的至少一部分,至少部分来自反应区的流出物在至少一个再引入水平的高度被重新引入蒸馏区,以确保连续性 蒸馏并且从蒸馏区抽出馏出物并从蒸馏区的底部回收底部流出物,所述方法的特征在于t 重新引入蒸馏区的流出物部分的温度比在重新引入水平以下的排出水平高度排出的反应区的进料的温度低。 该方法可用于降低烃馏分中的苯含量。