Process for producing light olefins
    2.
    发明授权
    Process for producing light olefins 失效
    轻质烯烃的生产工艺

    公开(公告)号:US5990369A

    公开(公告)日:1999-11-23

    申请号:US21044

    申请日:1998-02-09

    摘要: The present invention relates to a process for the production of light olefins comprising olefins having from 2 to 4 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal alumninophosphate catalyst to produce a light olefin stream. The light olefin stream is fractionated and a portion of the products are metathesized to enhance the yield of the ethylene, propylene, and/or butylene products. Propylene can be metathesized to produce more ethylene, or a combination of ethylene and butene can be metathesized to produce more propylene. This combination of light olefin production and metathesis, or disproportionation provides flexibility to overcome the equilibrium limitations of the metal aluminophosphate catalyst in the oxygenate conversion zone. In addition, the invention provides the advantage of extended catalyst life and greater catalyst stability in the oxygenate conversion zone.

    摘要翻译: 本发明涉及一种用于生产轻质烯烃的方法,其包含每分子含有2至4个碳原子的含氧原料。 该方法包括使含氧化合物原料通入含有金属氨基磷酸盐催化剂的含氧化合物转化区以产生轻质烯烃流。 将轻质烯烃流分馏,并将一部分产物复分解,以提高乙烯,丙烯和/或丁烯产物的产率。 丙烯可以被复分解以产生更多的乙烯,或者乙烯和丁烯的组合可以被复分解以产生更多的丙烯。 轻烯烃生产和复分解的组合或歧化提供了克服金属磷酸铝催化剂在含氧化合物转化区中的平衡限制的灵活性。 此外,本发明提供了在含氧化合物转化区中延长的催化剂寿命和更大的催化剂稳定性的优点。

    Selectivity in hydrocarbon conversion
    3.
    发明授权
    Selectivity in hydrocarbon conversion 失效
    烃转化中的选择性

    公开(公告)号:US5510559A

    公开(公告)日:1996-04-23

    申请号:US245183

    申请日:1994-05-17

    IPC分类号: C07C5/27 C07C5/22

    CPC分类号: C07C5/2775 C07C2529/82

    摘要: An improved process is disclosed for the conversion of hydrocarbons, using a catalyst comprising a non-zeolitic molecular sieve which has been activity-moderated by controlled carbon deposition. It is of particular interest in skeletal isomerization to increase the proportion of olefins containing tertiary carbons in the product with low formation of undesirable by-products. Controlled carbon deposition increases selectivity to the desired olefin isomers. Product olefins may be further processed to obtain ethers, which enjoy high current interest as components for reformulated gasoline.

    摘要翻译: 公开了一种用于烃的转化的改进方法,其使用包含通过受控碳沉积活性调节的非沸石分子筛的催化剂。 骨架异构化特别有利于增加产物中含有叔碳的烯烃的比例,同时形成不希望的副产物。 受控碳沉积提高了对所需烯烃异构体的选择性。 可以进一步处理产物烯烃以获得作为重整汽油的组分享有高电流兴趣的醚。

    Selective isoparaffin synthesis from naphtha
    5.
    发明授权
    Selective isoparaffin synthesis from naphtha 失效
    石脑油选择性异链烷烃合成

    公开(公告)号:US5498810A

    公开(公告)日:1996-03-12

    申请号:US293530

    申请日:1994-08-19

    摘要: A process combination is disclosed to selectively upgrade naphtha to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy naphtha and isobutane; isobutane and isopentane in the product are obtained in superequilibrium concentrations. The heavy naphtha may be processed by reforming, light naphtha may be isomerized, and isobutane may be upgraded by dehydrogenation, etherification and/or alkylation to yield gasoline components from the process combination suitable for production of reformulated gasoline.

    摘要翻译: 公开了一种方法组合以选择性地升级石脑油以获得适于进一步升级至重整燃料的产品。 将石脑油原料氢化以使芳烃饱和,随后进行选择性异链烷烃合成以产生轻质和重质石脑油和异丁烷; 产物中的异丁烷和异戊烷以超平衡浓度获得。 重石脑油可以通过重整进行处理,轻质石脑油可以被异构化,并且可以通过脱氢,醚化和/或烷基化来提高异丁烷,以从适于生产重整汽油的方法组合产生汽油组分。

    Prevention of noble metal migration in bound zeolites during thermal
oxidation
    6.
    发明授权
    Prevention of noble metal migration in bound zeolites during thermal oxidation 失效
    在热氧化过程中防止结合沸石中的贵金属迁移

    公开(公告)号:US5185306A

    公开(公告)日:1993-02-09

    申请号:US735213

    申请日:1991-07-24

    IPC分类号: B01J29/068 B01J37/24

    CPC分类号: B01J37/24 B01J29/068

    摘要: Metal migration from molecular sieve particles to binder particles in agglomerates of molecular sieves bearing group VIII zerovalent metal occurs readily at temperatures above 350.degree. C. Such migration can seriously impair the performance of the catalyst whose effectiveness depends on the presence of the metal largely, if not exclusively, on the molecular sieve particle. Exposure of the catalyst, or a catalyst precursor, to temperatures facilitating group VIII metal migration can occur at various periods during the catalyst's history. Group VIII metal migration can be inhibited and often effectively prevented when chlorine or a chlorine-containing compound is present in the non-reducing atmosphere at temperatures which otherwise would bring about metal migration.

    摘要翻译: 金属从分子筛颗粒迁移到带有第VIII族分子筛的附聚物中的粘结剂颗粒零价金属容易在高于350℃的温度下发生。这种迁移会严重损害催化剂的性能,其性能主要取决于金属的存在,如果 不排他地,在分子筛颗粒上。 催化剂或催化剂前体暴露于促进第VIII族金属迁移的温度可以在催化剂历史中的不同时期发生。 当否则会导致金属迁移的温度下,当非氯还原气体中存在氯或含氯化合物时,可以抑制VIII族金属迁移。

    Trimetallic reforming catalyst
    7.
    发明授权
    Trimetallic reforming catalyst 失效
    三金属重整催化剂

    公开(公告)号:US4923595A

    公开(公告)日:1990-05-08

    申请号:US283403

    申请日:1988-12-12

    摘要: A novel trimetallic catalytic composite, a method of manufacture and process use thereof is disclosed. The composite comprises a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed Group IVA metal component and a surface-impregnated metal or metal-containing component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, or iridium. When this catalytic composite is used in the reforming of hydrocarbons at low pressures, significant improvement in activity stability is observed compared to catalysts of the prior art.

    摘要翻译: 公开了一种新型的三金属催化复合材料,其制造方法和工艺用途。 该复合材料包括具有至少650微米的公称直径的耐火载体,并且在其上沉积有均匀分散的铂组分,均匀分散的IVA族金属组分和表面浸渍的金属或含金属的组分,其选自铑 ,钌,钴,镍或铱。 当该催化复合材料用于在低压下重整烃时,与现有技术的催化剂相比,观察到活性稳定性显着改善。

    Arylalkane sulfonate compositions produced using isomerization, dehydrogenation, and alkylation
    8.
    发明授权
    Arylalkane sulfonate compositions produced using isomerization, dehydrogenation, and alkylation 失效
    使用异构化,脱氢和烷基化生产的芳基磺酸盐组合物

    公开(公告)号:US06515169B1

    公开(公告)日:2003-02-04

    申请号:US10205672

    申请日:2002-07-25

    IPC分类号: C07C30928

    摘要: The present invention is a process for producing aryl-alkanes by paraffin isomerization followed by paraffin dehydrogenation and then by alkylation of an aryl compound by a lightly branched olefin. The effluent of the alkylation zone comprises paraffins that are recycled to the isomerization step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

    摘要翻译: 本发明是通过石蜡异构化,然后进行链烷烃脱氢,然后通过轻支化烯烃烷基化芳基化合物来制备芳基烷烃的方法。 烷基化区的流出物包括再循环到异构化步骤或脱氢步骤的链烷烃。 本发明也是一种方法,即磺酸化具有轻支化脂族烷基的苯基烷烃,以生产改性烷基苯磺酸盐。 此外,本发明是通过这些方法制备的组合物,其可以用作在硬水和/或冷水中具有改善的清洁效果的洗涤剂,同时具有与线性烷基苯磺酸盐,润滑剂和润滑剂添加剂相当的生物降解性。 此外,本发明还将这些方法生产的组合物用作润滑剂和润滑剂添加剂。

    Selective upgrading of naphtha
    9.
    发明授权
    Selective upgrading of naphtha 失效
    石脑油选择性升级

    公开(公告)号:US5401388A

    公开(公告)日:1995-03-28

    申请号:US117466

    申请日:1993-09-07

    IPC分类号: C10G59/06 C10G63/06

    CPC分类号: C10G59/06

    摘要: A process combination is disclosed to selectively upgrade naphtha to obtain gasoline which is in accordance with current standards for reformulated fuels. A naphtha feedstock is fractionated to selectively direct light naphtha to isomerization or blending, a head-cut fraction to reforming, and a heavy potion to selective isoparaffin synthesis to yield light and heavy synthesis naphtha and isobutane. The heavy potion of the synthesis naphtha is processed by reforming. Light naphtha may be isomerized, with or without recycle of low-octane components of the product. A gasoline component is blended from light, synthesis, and reformate products from the process combination.

    摘要翻译: 公开了一种方法组合以选择性地升级石脑油以获得符合目前重新配制的燃料标准的汽油。 将石脑油原料分馏以选择性地将轻石脑油引导至异构化或共混,将头馏分转化为重馏分,并将重质部分引入选择性异链烷烃合成以产生轻质和重质合成石脑油和异丁烷。 通过重整处理合成石脑油的重药剂。 轻石脑油可以异构化,有或没有产物的低辛烷值组分的再循环。 来自工艺组合的轻质,合成和重整产物的汽油组分混合。

    Selective isoparaffin synthesis from naphtha
    10.
    发明授权
    Selective isoparaffin synthesis from naphtha 失效
    石脑油选择性异链烷烃合成

    公开(公告)号:US5235120A

    公开(公告)日:1993-08-10

    申请号:US796562

    申请日:1991-11-21

    摘要: A process combination is disclosed to selectively upgrade naphtha to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy naphtha and isobutane. The heavy naphtha may be processed by reforming, light naphtha may be isomerized, and isobutane may be upgraded by dehydrogenation, etherification and/or alkylation to yield gasoline components from the process combination suitable for production of reformulated gasoline.

    摘要翻译: 公开了一种方法组合以选择性地升级石脑油以获得适于进一步升级至重整燃料的产品。 将石脑油原料氢化以使芳烃饱和,随后进行选择性异链烷烃合成以产生轻质和重质石脑油和异丁烷。 重石脑油可以通过重整进行处理,轻质石脑油可以被异构化,并且可以通过脱氢,醚化和/或烷基化来提高异丁烷,以从适用于生产重整汽油的方法组合产生汽油组分。