Process for separation by settling in a plurality of distinct zones
    2.
    发明授权
    Process for separation by settling in a plurality of distinct zones 有权
    通过沉降多个不同区域进行分离的方法

    公开(公告)号:US06203712B1

    公开(公告)日:2001-03-20

    申请号:US09229578

    申请日:1999-01-13

    IPC分类号: B01D2130

    CPC分类号: B01D17/0208 B01D17/0214

    摘要: A process for separating at least two liquid phases which are at least partially non miscible is characterized in that after reacting, a polyphase effluent is settled in at least two distinct settling zones arranged in parallel, each of these settling zones containing at least one settler. The feed to be treated is sent to reactor R via a means for circulating fluids P via line 1. The effluent leaves the reactor via line 2 and is separated into two fractions. One fraction is sent to a settling zone a) via line 3; the other fraction is sent to a settling zone b) via line 4. The heavy phase from settling zone a) is sent to the reactor via line 7 and the heavy phase of the settling zone b) is sent to the reactor via line 6. The light phase from settling zone a) is sent to line 8, and rejoins fresh feed supply line 1. The light phase from settling zone b) is evacuated from the circuit via line 5.

    摘要翻译: 分离至少部分不混溶的至少两个液相的方法的特征在于,在反应之后,多相流出物沉降在平行布置的至少两个不同的沉降区中,每个这些沉降区含有至少一个沉降器。 待处理的进料经由管线1循环流体P的装置送至反应器R.流出物通过管线2离开反应器并分离成两部分。 一部分经由管线3送至沉降区a) 另一部分通过管线4送至沉降区b)。来自沉降区a)的重相通过管线7送至反应器,沉降区b)的重相通过管线6送至反应器。 来自沉降区a)的光相被送到管线8,并重新加入新鲜的进料供应管线1.来自沉降区域b)的光相通过管线5从回路排出。

    Process for polymerization in the presence of alpha olefins
    3.
    发明授权
    Process for polymerization in the presence of alpha olefins 有权
    在α-烯烃存在下进行聚合的方法

    公开(公告)号:US06184315B2

    公开(公告)日:2001-02-06

    申请号:US09252869

    申请日:1999-02-18

    IPC分类号: C08F200

    摘要: The polymerization process is carried out starting from a monomer that is introduced via pipe (1) and a comonomer that is introduced via pipe (2); the comonomer that is used, which is an alpha-olefin, is introduced into polymerization reactor P in the form of an approximately pure compound. The polymerization effluent is then separated in separator S1 into two fractions: a heavy fraction that is evacuated via pipe (5) and that contains at least one polymer, and a light fraction that is evacuated via pipe (4) and that comprises the monomer that has not reacted, the comonomer that has not reacted, as well as isomers of this comonomer. At least a portion of the light fraction is then treated during an ethenolysis stage E in the presence of an addition of fresh ethylene that is introduced via line (9). The effluent that is produced in the ethenolysis stage is subjected to at least two separations in separation train S2. After the fraction that contains the light olefins and the fraction that contains the heavy compounds have been separated, the fraction that comprises the comonomer is recycled via pipe (10) toward polymerization zone P.

    摘要翻译: 从通过管(1)引入的单体和通过管(2)引入的共聚单体开始聚合过程; 将所使用的共聚单体(其为α-烯烃)以近纯化合物的形式引入聚合反应器P中。 然后将聚合流出物在分离器S1中分离成两部分:通过管道(5)抽真空并且含有至少一种聚合物的重馏分和通过管道(4)抽空的轻馏分,并且包含单体, 没有反应,未反应的共聚单体,以及该共聚单体的异构体。 然后在乙烯溶解阶段E中,在加入通过管线(9)引入的新鲜乙烯的存在下,至少部分轻馏分处理。 在乙烯分解阶段中产生的流出物在分离系S2中进行至少两次分离。 在含有轻质烯烃的馏分和含有重质化合物的馏分已经分离后,包含共聚单体的馏分通过管道(10)再循环到聚合区域P.

    Alternated process for olefin metathesis
    6.
    发明授权
    Alternated process for olefin metathesis 有权
    烯烃复分解的交替过程

    公开(公告)号:US06281402B1

    公开(公告)日:2001-08-28

    申请号:US09208585

    申请日:1998-12-10

    IPC分类号: C07C604

    摘要: The present invention relates to a process for continuous metathesis or disproportionation of olefins, comprising at least 2 phases, a reaction phase a) carried out in a zone comprising at least one reactor containing at least one fixed bed of catalyst and a regeneration phase b) carried out in a zone comprising at least one reactor containing at least one fixed bed of catalyst, characterized in that at least one reactor passes from one phase to the other in alternation. In FIG. 1, the feed containing olefins traverses reactor R1 in riser mode. The feed to be treated containing olefins is introduced into reactor R1 via line 1a. In this reactor, the olefins contained in the feed undergo metathesis or disproportionation, then the effluent leaves the circuit via line 11. Simultaneously, reactor R2 is placed in catalyst regeneration phase, the different regeneration gases are introduced into reactor R2 via line 2b and leave this reactor via line 2c. Passage from the operating phase of a reactor to the catalyst regeneration phase thereof is carried out as follows: the reactor for which the catalyst is to be regenerated is isolated from the remainder of the apparatus, the hydrocarbons contained in the reactor are evacuated, then the reactor is purged. Said reactor is then connected to a regeneration loop and undergoes regeneration of its catalyst, and at the end of the regeneration phase, the reactor and the regeneration loop are purged.

    摘要翻译: 本发明涉及一种烯烃的连续复分解或歧化方法,包括至少两相,在包含至少一个含有至少一个催化剂固定床和再生阶段的反应器的区域中进行的反应相a) 在包含至少一个包含至少一个催化剂固定床的反应器的区域中进行,其特征在于至少一个反应器交替地从一个相转移到另一个相。 在图 如图1所示,含有烯烃的进料以提升管方式穿过反应器R1。 待处理含烯烃的进料通过管线1a引入反应器R1。 在该反应器中,进料中所含的烯烃经过复分解或歧化,然后流出物通过管线11离开回路。同时,将反应器R2置于催化剂再生阶段,不同的再生气体通过管线2b引入反应器R2,并留下 该反应器经由管线2c。 从反应器的操作阶段到催化剂再生阶段的通过如下进行:将待再生催化剂的反应器与装置的其余部分分离,将反应器中包含的烃抽真空,然后 反应器被清除。 然后将所述反应器连接到再生回路并经历其催化剂的再生,并且在再生阶段结束时,将反应器和再生回路清除。

    Process for obtaining butene-1
    7.
    发明授权
    Process for obtaining butene-1 有权
    获得丁烯-1的方法

    公开(公告)号:US06242662B1

    公开(公告)日:2001-06-05

    申请号:US09229958

    申请日:1999-01-14

    IPC分类号: C07C525

    摘要: For obtaining butene-1 from butene-2, a charge containing at least one of the isomers of butene-2 is introduced into a distillation zone linked to a hydro-isomerization zone. Part of the effluent from the bottom of the distillation column is removed from the distillation zone, heated in a heat exchanger and passed into an external hydro-isomerization zone. The hydro-isomerization effluent is removed from the hydro-isomerization zone, cooled in a heat exchanger, and then reintroduced into the distillation zone. Effluent containing butene-1 is withdrawn from the top of the column of the distillation zone.

    摘要翻译: 为了从丁烯-2获得丁烯-1,将含有至少一种丁烯-2异构体的电荷引入连接到加氢异构化区的蒸馏区。 将蒸馏塔底部的一部分流出物从蒸馏区除去,在热交换器中加热并进入外部加氢异构化区。 将加氢异构化流出物从加氢异构化区域除去,在热交换器中冷却,然后再引入蒸馏区。 含有丁烯-1的流出物从蒸馏区的塔顶排出。

    ACETONITRILE REMOVAL FROM THE OLEFINIC FEED OF ETHER PRODUCTION PROCESSES USING IONIC LIQUIDS
    10.
    发明申请
    ACETONITRILE REMOVAL FROM THE OLEFINIC FEED OF ETHER PRODUCTION PROCESSES USING IONIC LIQUIDS 失效
    从使用离子液体的生产过程的油脂进料中除去乙腈

    公开(公告)号:US20080154068A1

    公开(公告)日:2008-06-26

    申请号:US11954108

    申请日:2007-12-11

    IPC分类号: C07C41/01

    摘要: An enhanced ether production process from an olefinic cut containing at least one iso-olefin and from an alcohol comprises a stage of removal of the acetonitrile present in the hydrocarbon feed by liquid-liquid extraction, the extraction solvent being a non-aqueous ionic liquid of general formula Q+A−, wherein Q+ is an ammonium, phosphonium and/or sulfonium cation, and A− an anion likely to form a liquid salt with said cation. Advantageously, the method according to the invention generally allows the amount of water at the etherification reactor inlet to be divided by at least two and thus the purity of the ether produced to be improved.

    摘要翻译: 含有至少一种异烯烃和醇的烯烃切割剂的增强的乙醚生产方法包括通过液 - 液萃取除去存在于烃进料中的乙腈的一个阶段,萃取溶剂是一种非水离子液体 其中Q +是铵,鏻和/或锍阳离子,并且A + SUP>可能与所述阳离子形成液体盐的阴离子。 有利地,根据本发明的方法通常允许将醚化反应器入口处的水量除以至少两个,从而提高生产的醚的纯度。