Process for the dehydrogenation of aliphatic hydrocarbons saturated into
olefinic hydrocarbons
    3.
    发明授权
    Process for the dehydrogenation of aliphatic hydrocarbons saturated into olefinic hydrocarbons 失效
    饱和到烯烃中的脂肪烃脱氢的方法

    公开(公告)号:US5436383A

    公开(公告)日:1995-07-25

    申请号:US299001

    申请日:1994-08-31

    IPC分类号: C07C5/32 C07C5/333 C07C5/327

    CPC分类号: C07C5/325 C07C5/3337

    摘要: Process for the dehydrogenation of a charge incorporating saturated aliphatic hydrocarbons essentially having 3 to 5 carbon atoms per molecule, in which the charge, previously heated to the reaction temperature and without premixing with the hydrogen, is introduced at the inlet of at least one reactor, where the dehydrogenation reaction is performed in the presence of a catalyst, preferably incorporating a support having at least one oxide of an element chosen from among the groups IIA, IIB, IIIA, IIIB, IVA and IVB of the periodic classification of elements, at least one noble metal from the platinum family, at least one promotor metal and at least one alkali metal or alkaline earth metal.

    摘要翻译: 每分子基本上具有3至5个碳原子的饱和脂族烃的电荷的脱氢方法,其中预先加热到反应温度并且不与氢预混合的电荷在至少一个反应器的入口处引入, 其中脱氢反应在催化剂存在下进行,优选掺入具有选自元素周期分类的组IIA,IIB,IIIA,IIIB,IVA和IVB中的元素的至少一种氧化物的载体,至少 来自铂族的一种贵金属,至少一种助催化剂金属和至少一种碱金属或碱土金属。

    Process for the hydrogenation of diolefins in aromatic-rich hydrocarbons
using metallic catalysts impregnated with organic sulphur-containing
compounds
    5.
    发明授权
    Process for the hydrogenation of diolefins in aromatic-rich hydrocarbons using metallic catalysts impregnated with organic sulphur-containing compounds 失效
    使用浸渍有机含硫化合物的金属催化剂在富含芳烃的烃中氢化二烯烃的方法

    公开(公告)号:US5821397A

    公开(公告)日:1998-10-13

    申请号:US593410

    申请日:1996-01-29

    CPC分类号: C10G45/40 B01J37/20 C10G45/00

    摘要: A process is described for the high-efficiency selective hydrogenation of an aromatic hydrocarbon cut which also contains monoolefinic hydrocarbons and polyolefinic and/or acetylenic hydrocarbons with a bromine number of 10000 to 100 mg per 100 g of product with an aromatic degree of conversion which is limited to a maximum of 0.15% by weight, the process being characterized in that the cut, which is at least partially in the liquid phase, is passed with hydrogen into a hydrogenation zone in contact with a catalyst containing 0.1% to 1% by weight (with respect to the support) of palladium, the catalyst having been treated before activation with at least one organic sulphur-containing compound to introduce 0.05% to 1% of sulphur (by weight with respect to the weight of the catalyst), the process being carried out at a temperature in the range 20.degree. C. to 25.degree. C., at a pressure of 4-50 bar, a GHSV of 0.2-25 h.sup.-1 and with a H.sub.2 /monoolefin +polyolefin and/or acetylenes ratio in the range 0.3 to 100.

    摘要翻译: 描述了一种芳族烃切割的高效选择性加氢的方法,其还包含单烯烃和具有10000至100mg溴值的聚烯烃和/或炔烃,每100g具有芳族转化率的产物为 限制为最大0.15重量%,该方法的特征在于,将至少部分在液相中的馏分与氢气一起通入与含有0.1重量%至1重量%的催化剂接触的氢化区 (相对于载体),催化剂在活化前用至少一种有机含硫化合物处理以引入0.05%至1%的硫(相对于催化剂的重量计),该方法 在20〜25℃的温度下,在4-50巴的压力,0.2-25h -1的GHSV和H 2 /单烯烃+聚烯烃和/或乙炔比例下进行 在范围内 0.3〜100。

    Para-xylene separation process comprising pretreatment by selective
hydrogenation and by activated clay
    6.
    发明授权
    Para-xylene separation process comprising pretreatment by selective hydrogenation and by activated clay 失效
    对二甲苯分离方法,包括通过选择性氢化和活性粘土进行预处理

    公开(公告)号:US6005156A

    公开(公告)日:1999-12-21

    申请号:US894408

    申请日:1998-01-27

    摘要: In a process for the separation of p-xylene from a feed to be treated containing a mixture of xylenes and olefinic impurities, at least a portion of the feed is circulated in an enrichment zone (14) to enrich a first fraction (15) in p-xylene and provide a second fraction (18) which is depleted in p-xylene. The second fraction is circulated in an isomerisation zone (19) and an isomerate (20) is recovered which is recycled to the enrichment zone. At least a portion of the feed to be treated, the isomerate, or a mixture thereof is circulated in at least one selective hydrogenation zone (3) to partially remove the olefinic impurities and thereafter in at least one clay tretment zone (8) to remove additional olefinic impurities. An effluent is recovered which is sent to the enrichment zone.

    摘要翻译: PCT No.PCT / FR96 / 00238 Sec。 371日期:1998年1月27日 102(e)日期1998年1月27日PCT提交1996年2月14日PCT公布。 公开号WO96 / 26170 日期1996年8月29日在从含有二甲苯和烯属杂质的混合物的待处理进料中分离对二甲苯的方法中,至少一部分进料在富集区(14)中循环,以富集第一 馏分(15)在对二甲苯中并提供耗尽对二甲苯的第二馏分(18)。 第二级分在异构化区(19)中循环,回收异构体(20),将异构化物(20)再循环至富集区。 待处理的进料的至少一部分,异构体或其混合物在至少一个选择性氢化区(3)中循环,以部分地除去烯属杂质,然后在至少一个粘土沉淀区(8)中除去 额外的烯属杂质。 回收的废水被送到浓缩区。

    Process for oligomerizing olefins
    9.
    发明授权
    Process for oligomerizing olefins 失效
    烯烃低聚方法

    公开(公告)号:US4387262A

    公开(公告)日:1983-06-07

    申请号:US228309

    申请日:1981-01-22

    摘要: A process for oligomerizing olefins uses a catalyst composition obtained by contacting (a) bivalent nickel compound with (b) a hydrocarbylaluminum compound of the formula Al R.sub.x X.sub.y where R is a monovalent hydrocarbon radical, X is halogen, x is from 1 to 1.5, y is from 1.5 to 2, x+y being equal to 3, and (c) a Bronsted acid consisting preferably of a halogenocarboxylic acid of the formula R.sub.1 COOH in which R.sub.1 is a halogenoalkyl radical of the formula C.sub.m H.sub.p X.sub.q X being halogen, m an integer from 1 to 3, p being zero or an integer and q being an integer, the condition p+q=2m+1 being fulfilled. A preferred Bronsted acid is of the formula R.sub.2 COOH in which R.sub.2 is a halogenomethyl group of the formula CX.sub.n H.sub.3-n, X being halogen and n an integer from 1 to 3.

    摘要翻译: 使烯烃低聚的方法使用通过使(a)二价镍化合物与(b)式Al RxXy的烃基铝化合物接触而获得的催化剂组合物,其中R是一价烃基,X是卤素,x是1至1.5,y 为1.5〜2,x + y为3,(c)优选由式R 1 COOH的卤代羧酸组成的布朗斯台德酸,其中R1为式CmHpXq + L的卤代烷基,X为卤素, m为1〜3的整数,p为0或整数,q为整数,满足条件p + q = 2m + 1。 优选的布朗斯台德酸是式R 2 COOH,其中R 2是式CX n H 3-n的卤代甲基,X是卤素,n是1至3的整数。

    Selective hydrogenation of hydrocarbon cuts containing monounsaturated
and polyunsaturated hydrocarbons
    10.
    发明授权
    Selective hydrogenation of hydrocarbon cuts containing monounsaturated and polyunsaturated hydrocarbons 失效
    含有单不饱和烃和多不饱和烃的烃馏分的选择氢化

    公开(公告)号:US5817901A

    公开(公告)日:1998-10-06

    申请号:US524573

    申请日:1995-09-07

    CPC分类号: C07C7/167 C10G70/02

    摘要: A process for the selective hydrogenation of a fraction of hydrocarbons containing 2 to 20 carbon atoms and comprising monounsaturated olefinic hydrocarbons and/or aromatic compounds and at least one polyunsaturated hydrocarbon from the group formed by acetylenic compounds and dienes, in which the hydrocarbon fraction, which is at least partially in the liquid phase, circulates with hydrogen in a given direction in a reactor containing at least one fixed bed of a hydrogenation catalyst in the form of a divided solid, characterized in that said reactor is provided with at least one inlet conduit for a fluid mixture comprising said hydrocarbon fraction and hydrogen and at least one outlet conduit for the hydrogenated hydrocarbon fraction, and in that it comprises at least one static mixer upstream of said outlet for the hydrogenated hydrocarbon fraction.

    摘要翻译: 一种含有2至20个碳原子的烃馏分的选择性氢化的方法,包括单不饱和烯烃和/或芳族化合物和至少一种由炔属化合物和二烯形成的基团中的多不饱和烃,其中烃馏分 至少部分地在液相中,在含有至少一种分解固体形式的氢化催化剂的固定床的反应器中,以给定方向在氢气中循环,其特征在于,所述反应器设置有至少一个入口导管 用于包含所述烃馏分和氢气的流体混合物和用于氢化烃馏分的至少一个出口导管,并且其包含在所述加氢烃馏分出口上游的至少一个静态混合器。