PROCESS FOR PREPARATION OF A CATIONIC ZEOLITE BY ION EXCHANGE
    1.
    发明申请
    PROCESS FOR PREPARATION OF A CATIONIC ZEOLITE BY ION EXCHANGE 审中-公开
    通过离子交换制备阳离子沸石的方法

    公开(公告)号:US20110288359A1

    公开(公告)日:2011-11-24

    申请号:US12994223

    申请日:2009-05-05

    摘要: The invention relates to a process for preparation of a cationic zeolite that is at least partially exchanged with one or more monovalent and/or multivalent cations. The process comprises at least the stages for separate activation of a zeolite that is to be exchanged and an anhydrous salt under a dry, inert gaseous stream, dissolution of the anhydrous salt in an anhydrous organic solvent, ion exchange under dry inert atmosphere, filtering and washing with an anhydrous organic solvent, and calcination in the presence of oxygen and under a dry gaseous stream. The invention also relates to the use of prepared zeolites for the separation or the purification of hydrocarbon feedstocks.

    摘要翻译: 本发明涉及一种制备阳离子沸石的方法,所述阳离子沸石与一种或多种一价和/或多价阳离子至少部分交换。 该方法至少包括在干燥,惰性气体流下分离活化待交换的沸石和无水盐的阶段,无水盐在无水有机溶剂中的溶解,在干惰性气氛下的离子交换,过滤和 用无水有机溶剂洗涤,并在氧气和干燥气流下煅烧。 本发明还涉及制备的沸石用于分离或纯化烃原料的用途。

    Process for improving gasoline cuts and conversion into gas oils
    4.
    发明授权
    Process for improving gasoline cuts and conversion into gas oils 失效
    改善汽油馏分和转化为瓦斯油的工艺

    公开(公告)号:US07847141B2

    公开(公告)日:2010-12-07

    申请号:US11144739

    申请日:2005-06-06

    IPC分类号: C07C2/00

    CPC分类号: C10G50/00 C10G31/10

    摘要: The invention relates to a process for converting a hydrocarbon charge of linear and branched olefins, comprises the following stages: a) a stage of membrane separation of the hydrocarbon charge under conditions making it possible to produce a cut β containing the majority of the linear olefins present in said charge, and a cut γ containing the majority of the branched olefins, b) a stage of treatment of the linear olefins contained in the effluents originating from the membrane separation stage (cut β) under moderate oligomerization conditions, c) a stage of distillation separation of the effluents originating from the oligomerization stage into at least two cuts, d) a stage of hydrogenation of the cut η under conditions for obtaining a gas oil with a high cetane number.

    摘要翻译: 本发明涉及一种用于转化直链和支链烯烃的烃装料的方法,包括以下阶段:a)在使得能够产生切割的条件下进行烃装料的膜分离阶段; 含有大部分存在于所述电荷中的直链烯烃,和含有大部分支链烯烃的切割γ,b)处理源自膜分离阶段(切割)的流出物中的直链烯烃的处理阶段 中等低聚条件,c)将源自低聚阶段的流出物蒸馏分离成至少两个馏分的阶段,d)切割的氢化阶段; 在获得具有高十六烷值的瓦斯油的条件下。

    Process for improving gasoline fractions and gasoil conversion with additional treatment to increase the gasoil fraction yield
    5.
    发明申请
    Process for improving gasoline fractions and gasoil conversion with additional treatment to increase the gasoil fraction yield 有权
    用于通过额外处理来提高汽油馏分和油烟转化率的方法以增加汽油馏分产率

    公开(公告)号:US20060009670A1

    公开(公告)日:2006-01-12

    申请号:US11144740

    申请日:2005-06-06

    IPC分类号: C07C2/02

    摘要: The invention relates to a process for conversion of a gasoline-range hydrocarbon feed into a gasoline fraction with a higher octane rating than that of the feedstream, and a gasoil fraction with a cetane number higher than 45, including the following steps: a) a membrane separation step (B) applied to the hydrocarbon feed under conditions enabling selective separation of the majority of the linear olefins present in said feed and constituting the β fraction, the fraction containing the majority of the branched olefins, termed the γ fraction, constituting a gasoline with a high octane rating, greater than that of the feed, b) an oligomerisation step (C) applied to the linear olefins (β fraction) contained in the effluent stream from the membrane separation step (B) under moderate oligomerisation conditions, c) a distillation separation step (D) applied to the effluent stream arising from the oligomerisation step in at least two fractions, d) a hydrogenation step (E) applied to one of the fractions obtained at step c).

    摘要翻译: 本发明涉及一种将汽油范围烃进料转化为辛烷值高于进料流的汽油馏分和十六烷值高于45的汽油馏分的方法,包括以下步骤:a) 膜分离步骤(B),其在能够选择性分离所述进料中存在的大部分直链烯烃并构成β馏分的条件下应用于烃进料,所述馏分含有大部分称为γ馏分的支链烯烃,构成 具有高辛烷值的汽油,大于进料的汽油,b)在中等低聚条件下将来自膜分离步骤(B)的流出物流中所含的线性烯烃(β馏分)应用到低聚步骤(C),c )蒸馏分离步骤(D),其应用于由低聚步骤在至少两个馏分中产生的流出物流; d)施加氢化步骤(E)t o步骤c)获得的级分之一。

    Process for separating para-xylene, comprising an adsorption step with
injection of water and a crystallization step
    7.
    发明授权
    Process for separating para-xylene, comprising an adsorption step with injection of water and a crystallization step 失效
    分离对二甲苯的方法,包括注入水和结晶步骤的吸附步骤

    公开(公告)号:US5948950A

    公开(公告)日:1999-09-07

    申请号:US992968

    申请日:1997-12-18

    CPC分类号: C07C15/08 C07C7/005 C07C7/13

    摘要: A process for separating para-xylene from a C.sub.8 feed in a simulated moving bed comprises a step for adsorption on a zeolite and desorption using a desorbent delivering an extract and a raffinate, and an extract crystallization step. A stream of water is introduced into the feed, into the desorbent and/or into the stream for recycling one flux in the column, such that the weighted average of the amounts of water measured in the extract and in the raffinate is in the range 1 to 200 ppm. The ratio S/F of the desorbent flow rate to that of the feed during the adsorption and desorption step is in the range 0.6 to 2.5.

    摘要翻译: 在模拟移动床中从C8进料分离对二甲苯的方法包括用沸石吸附和使用递送提取物和萃余液的解吸剂解吸的步骤和提取物结晶步骤。 将水流引入进料,进入解吸剂和/或进入流中,以循环塔中的一个通量,使得在萃取液和萃余液中测量的水的加权平均值在1 至200ppm。 在吸附和解吸步骤中,解吸剂流速与进料的流量比S / F在0.6至2.5的范围内。

    Process for co-production and separation of ethylbenzene and paraxylene
    9.
    发明授权
    Process for co-production and separation of ethylbenzene and paraxylene 有权
    共同生产和分离乙苯和对二甲苯的方法

    公开(公告)号:US06177604B1

    公开(公告)日:2001-01-23

    申请号:US09219392

    申请日:1998-12-23

    IPC分类号: C07C712

    摘要: Paraxylene and ethylbenzene are produced from an aromatic hydrocarbon feedstock by using adsorption zones in a simulated fluid bed. The feedstock is first passed into a first adsorption zone to produce a first paraxylene-rich fraction and a second ethylbenzene-rich fraction. The second fraction is then passed into a second adsorption zone to produce a third fraction containing essentially pure ethylbenzene and a fourth fraction containing a majority of orthoxylene and metaxylene. The fourth stream is then passed into an isomerization zone to produce an isomerate which is then recycled back to the first adsorption zone.

    摘要翻译: 对二甲苯和乙苯由芳烃原料通过在模拟流化床中使用吸附区产生。 原料首先进入第一吸附区以产生富含第二对二甲苯馏分和第二富含乙苯的级分。 然后将第二级分进入第二吸附区以产生含有基本上纯的乙苯的第三级分和含有大部分邻二甲苯和间二甲苯的第四级分。 然后将第四个物流进入异构化区以产生异构体,然后将其再循环回第一吸附区。