Integral method for desulphurization of a hydrocarbon cracking or stream cracking effluent
    2.
    发明授权
    Integral method for desulphurization of a hydrocarbon cracking or stream cracking effluent 失效
    烃裂化或流裂解流出物脱硫的整体方法

    公开(公告)号:US07344635B2

    公开(公告)日:2008-03-18

    申请号:US10503807

    申请日:2003-01-22

    IPC分类号: C10G45/02

    CPC分类号: C10G69/123 C10G29/205

    摘要: Process for desulfurization of an effluent for cracking or steam-cracking hydrocarbons, more particularly a gasoline for example for catalytic cracking that comprises the elimination of thiophenic compounds by alkylation of these compounds, followed by a distillation, a hydrocracking of said alkyl-thiophenic compounds, then a hydrodesulfurization of the effluent that is obtained from the hydrocracking zone. In a preferred embodiment, this process comprises a preliminary stage for separating the cracking or steam-cracking effluent into three fractions, and proposes sending to the alkylation stage only the intermediate fraction that is low in heavy basic nitrogen-containing compounds that are initially present in the effluents that are to be alkylated.

    摘要翻译: 用于裂化或蒸汽裂解烃的流出物的脱硫方法,更具体地,例如用于催化裂解的汽油,其包括通过这些化合物的烷基化除去噻吩化合物,然后蒸馏,所述烷基 - 噻吩化合物的加氢裂化, 然后从加氢裂化区获得的流出物的加氢脱硫。 在优选的实施方案中,该方法包括用于将裂化或蒸汽裂解流出物分离成三个馏分的初步阶段,并且建议仅向最初存在于重质碱性含氮化合物中的低碱性含氮化合物的中间馏分 待烷基化的废水。

    Process for obtaining a feedstock that can be used in an etherification unit
    3.
    发明授权
    Process for obtaining a feedstock that can be used in an etherification unit 有权
    用于获得可用于醚化单元的原料的方法

    公开(公告)号:US07025872B2

    公开(公告)日:2006-04-11

    申请号:US10761240

    申请日:2004-01-22

    IPC分类号: C10G47/14

    摘要: Process for obtaining a hydrocarbon fraction that can be used as a feedstock of an etherification unit and that contains a small amount of diene compounds, nitrogen-containing compounds and sulfur-containing compounds, starting from an initial hydrocarbon feedstock that comprises a mixture of olefins, dienes, and nitrites as well as sulfur-containing compounds, whereby said process comprises at least the following successive stages: a) a selective hydrogenation of said initial hydrocarbon feedstock in the presence of a catalyst of group VIII of the periodic table, b) a fractionation by distillation of the effluents that are obtained from stage a) under conditions that make it possible to obtain at least two fractions including said hydrocarbon fraction and that comprises a small amount of diene compounds, nitrogen-containing compounds and sulfur-containing compounds, and a heavy fraction that contains heavy hydrocarbons and the majority of the nitrogen-containing compounds and sulfur-containing compounds obtained from the hydrogenation of stage a).

    摘要翻译: 用于获得可用作醚化单元的原料并且含有少量二烯化合物,含氮化合物和含硫化合物的烃馏分的方法,起始于包含烯烃混合物的初始烃原料, 二烯和亚硝酸盐以及含硫化合物,其中所述方法至少包括以下连续阶段:a)在周期表第VIII族催化剂存在下,所述初始烃原料的选择性氢化,b) 通过蒸馏从步骤a)获得的流出物的分馏,使得可以获得包含所述烃馏分的至少两个馏分并且包含少量二烯化合物,含氮化合物和含硫化合物的条件,以及 含有重质烃和大部分含氮化合物和硫-c的重馏分 保持从a)阶段的氢化获得的化合物。

    Process for synthesizing and purifying olefins comprising
dehydrogenating a paraffin
    6.
    发明授权
    Process for synthesizing and purifying olefins comprising dehydrogenating a paraffin 失效
    合成和纯化烯烃的方法,包括使石蜡脱氢

    公开(公告)号:US6121505A

    公开(公告)日:2000-09-19

    申请号:US103524

    申请日:1998-06-24

    CPC分类号: C07C11/02 C07C5/333

    摘要: The present invention relates to a process for the production of olefins from a hydrocarbon cut, comprising a step for separating at least one paraffin contained in the hydrocarbon cut, a step for dehydrogenating the paraffin and a step for purifying the hydrogen produced during dehydrogenation, at least a part of that hydrogen being recycled to the dehydrogenation step. The invention is of particular application to the preparation of olefins containing 3 to 5 carbon atoms per molecule from a C.sub.3 to C.sub.5 hydrocarbon cut containing at least one paraffin.

    摘要翻译: 本发明涉及一种从烃切割生产烯烃的方法,包括分离烃馏分中所含的至少一种石蜡的步骤,用于使石蜡脱氢的步骤和用于纯化在脱氢过程中产生的氢气的步骤 将该氢的至少一部分再循环至脱氢步骤。 本发明特别适用于从含有至少一种链烷烃的C 3 -C 5烃馏分制备每分子含3至5个碳原子的烯烃。

    Alternated process for olefin metathesis
    8.
    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 the separation of alpha-olefins by distillation of an
effluent comprising ethylene and 1-butene
    9.
    发明授权
    Process for the separation of alpha-olefins by distillation of an effluent comprising ethylene and 1-butene 失效
    通过蒸馏出包含乙烯和1-丁烯的流出物来分离α-烯烃的方法

    公开(公告)号:US5853551A

    公开(公告)日:1998-12-29

    申请号:US720384

    申请日:1996-07-23

    IPC分类号: C07C7/05 B01D3/34 B01D3/14

    CPC分类号: C07C7/05

    摘要: The invention concerns a process for the separation of a mixture comprising ethylene, 1-butene, alpha-olefins containing at least 6 carbon atoms per molecule and possibly heavier hydrocarbon products, the ethylene content of the mixture being in the range 30% to 70% by weight, in which separation is effected in a distillation zone to obtain an overhead fraction comprising the major portion of the ethylene present in the mixture and between 0% and 100% by weight of the 1-butene present in the mixture, the process being characterized in that the zone is also supplied with supplemental 1-butene in an amount in the range 1 to 40 times the quantity (by weight) of 1-butene present in the mixture. In a preferred implementation of the process of the invention, the mixture originates form a homogenous liquid phase ethylene oligomerisation zone.

    摘要翻译: 本发明涉及一种分离包含乙烯,1-丁烯,每分子含有至少6个碳原子的α-烯烃和可能较重烃产物的混合物的混合物的方法,该混合物的乙烯含量在30%至70%的范围内, ,其中在蒸馏区中进行分离以获得包含混合物中存在的乙烯的主要部分和0重量%至100重量%的混合物中存在的1-丁烯的塔顶馏分,该方法为 其特征在于,该区域还提供了在混合物中存在的1-丁烯的量(重量)的1至40倍的量的补充的1-丁烯。 在本发明方法的优选实施方案中,混合物起始形成均相液相乙烯齐聚区。

    Synthetic oil with a high viscosity number and a low pour point
    10.
    发明授权
    Synthetic oil with a high viscosity number and a low pour point 有权
    具有高粘度数和低倾点的合成油

    公开(公告)号:US06491809B1

    公开(公告)日:2002-12-10

    申请号:US09671294

    申请日:2000-09-27

    IPC分类号: C10M10506

    CPC分类号: C10M105/02 C10M105/06

    摘要: Synthetic oil that contains wholly or partly of dialkylbenzenes and/or partially or totally hydrogenated dialkylbenzenes. The synthetic oil according to the invention can also be used as an oil base or oil base additive and comprises at least one dialkylbenzene and/or at least one partially or totally hydrogenated dialkylbenzene and meets the general chemical formula: R1—A—R2 in which R1 and R2 represent alkyl groups and A is a benzene core and/or a cyclohexane core and/or a cyclohexene core and/or a cyclohexadiene core and is characterized in that it contains between 1 and 20% by weight or ortho isomers and in that at least one of the alkyl groups is attached for the most part to group A by carbon 2 of the aliphatic chain. The two alkyl groups are preferably attached for the most part to group A by carbon 2 of the aliphatic chain.

    摘要翻译: 含有全部或部分二烷基苯和/或部分或完全氢化的二烷基苯的合成油。 根据本发明的合成油还可以用作油基或油基添加剂,并且包含至少一种二烷基苯和/或至少一种部分或全部氢化的二烷基苯,并且满足以下通式:其中R 1和R 2表示烷基 基团和A是苯核心和/或环己烷核心和/或环己烯核心和/或环己二烯核心,其特征在于其含有1至20重量%或邻位异构体,并且其中至少一个 烷基通过脂族链的碳2大部分连接到基团A上。 两个烷基优选通过脂族链的碳2连接到大部分为基团A。