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    • 2. 发明授权
    • Process for polymerization in the presence of alpha olefins
    • 在α-烯烃存在下进行聚合的方法
    • US06184315B2
    • 2001-02-06
    • US09252869
    • 1999-02-18
    • Alain ForestiereFrançois Hugues
    • Alain ForestiereFrançois Hugues
    • C08F200
    • C08F6/003C08F6/006C08F210/16C08L23/08C08F210/14
    • 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.
    • 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.
    • 4. 发明授权
    • Process for separation by settling in a plurality of distinct zones
    • 通过沉降多个不同区域进行分离的方法
    • US06203712B1
    • 2001-03-20
    • US09229578
    • 1999-01-13
    • Charles BronnerAlain ForestiereFrançois Hugues
    • Charles BronnerAlain ForestiereFrançois Hugues
    • B01D2130
    • B01D17/0208B01D17/0214
    • 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.
    • 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。
    • 7. 发明授权
    • Alternated process for olefin metathesis
    • 烯烃复分解的交替过程
    • US06281402B1
    • 2001-08-28
    • US09208585
    • 1998-12-10
    • Vincent CoupardFrançois HuguesDominique CommereucBéatrice FischerPierre BoucotAlain Forestiere
    • Vincent CoupardFrançois HuguesDominique CommereucBéatrice FischerPierre BoucotAlain Forestiere
    • C07C604
    • C07C6/04C07C2521/04C07C2523/36Y02P20/584
    • 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.
    • 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。
    • 10. 发明授权
    • Process for preparing a rhenium and cesium based metathesis catalyst
    • 制备铼和铯基复分解催化剂的方法
    • US06277781B1
    • 2001-08-21
    • US09413192
    • 1999-10-05
    • Dominique CommereucFrançois HuguesLucien Saussine
    • Dominique CommereucFrançois HuguesLucien Saussine
    • B01J2304
    • C07C6/04B01J23/36C07C2521/04C07C2523/04C07C2523/36Y02P20/52
    • The present invention provides a catalyst and a process for metathesis of olefinic C4 cuts. The catalyst contains rhenium, cesium and delta alumina. The preferred catalyst contains at least one rhenium compound deposited on a support principally composed of alumina, treated at a temperature of more than 750° C., and modified by at least one cesium compound. With the use of the catalyst, the duration of the cycle between two regeneration operations can be substantially increased. The catalyst is suitable for use in a process for production of propylene from an olefinic C4 cut in three steps: (1) selective hydrogenation of butadiene with isomerisation of 1-butene to 2-butene, (2) separation by distillation of the major portion of the isobutene, and (3) metathesis of the cut rich in 2-butene with ethylene.
    • 本发明提供催化剂和烯烃C4馏分的复分解方法。 催化剂含有铼,铯和δ氧化铝。 优选的催化剂含有沉积在主要由氧化铝组成的载体上的至少一种铼化合物,其在大于750℃的温度下处理并被至少一种铯化合物修饰。 通过使用催化剂,可以显着增加两次再生操作之间的循环持续时间。 该催化剂适用于以下三个步骤从烯烃C4馏分生产丙烯的方法:(1)丁烯与1-丁烯异构化至2-丁烯的选择性氢化,(2)通过主蒸馏分离 的异丁烯,(3)富含2-丁烯的馏分与乙烯的复分解。