Catalyst for the isomerization of aromatics
    21.
    发明授权
    Catalyst for the isomerization of aromatics 失效
    用于芳烃异构化的催化剂

    公开(公告)号:US4874731A

    公开(公告)日:1989-10-17

    申请号:US107604

    申请日:1987-10-13

    IPC分类号: C07C5/27

    CPC分类号: C07C5/2724

    摘要: An improved catalyst for the isomerization of non-equilibrium C.sub.8 aromatics is presented which utilizes a novel catalytic composition. This catalyst comprises a Group VIII metal component, a bismuth component, and crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 12. An isomerization process is also disclosed which has a particular utility for the conversion of ethylbenzene without the deleterious loss of xylene.

    摘要翻译: 提出了一种用于非平衡C8芳族化合物异构化的改进的催化剂,其利用了新的催化组合物。 该催化剂包括第Ⅷ族金属组分,铋组分和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐沸石。还公开了一种异构化方法,其具有用于乙苯转化而没有二甲苯有害损失的特殊用途 。

    Reforming of hydrocarbons utilizing a trimetallic catalyst
    22.
    发明授权
    Reforming of hydrocarbons utilizing a trimetallic catalyst 失效
    使用三金属催化剂重整烃

    公开(公告)号:US4714539A

    公开(公告)日:1987-12-22

    申请号:US37679

    申请日:1987-04-10

    摘要: A novel hydrocarbon conversion process for the reforming of naphtha charge stocks containing less than 300 wt. ppb sulfur is disclosed. The process utilizes a catalytic composite comprising a refractory support having a nominal diameter of at least 650 microns and having deposited thereon a uniformly dispersed platinum component, a uniformly dispersed tin component and a surface-impregnated metal component selected from the group consisting of rhodium, ruthenium, cobalt, nickel, iridium, and mixtures thereof. When this catalytic composite is used in the reforming of low sulfur level hydrocarbons at low pressures significant improvements in activity stability is observed compared to catalysts of the prior art.

    摘要翻译: 一种新型烃转化方法,用于重整含有少于300wt。 公开了ppb硫。 该方法使用催化复合材料,该催化剂复合材料包括具有至少650微米的公称直径的耐火载体,并且沉积有均匀分散的铂组分,均匀分散的锡组分和选自铑,钌的表面浸渍金属组分 ,钴,镍,铱及其混合物。 当这种催化复合材料用于在低压低重量级烃的重整中时,与现有技术的催化剂相比,观察到活性稳定性显着改善。

    Process for producing phenyl-alkanes using olefin isomerization and paraffin recycle
    23.
    发明授权
    Process for producing phenyl-alkanes using olefin isomerization and paraffin recycle 有权
    使用烯烃异构化和石蜡回收生产苯基烷烃的方法

    公开(公告)号:US06670516B1

    公开(公告)日:2003-12-30

    申请号:US10327281

    申请日:2002-12-20

    IPC分类号: C07C266

    摘要: A process for producing phenyl-alkanes by paraffin dehydrogenation followed by olefin isomerization and then by alkylation of a phenyl compound by a lightly branched olefin is disclosed. An effluent of the alkylation section comprises paraffins that are recycled to the dehydrogenation step. A process that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups to produce modified alkylbenzene sulfonates is also disclosed. In addition, the compositions produced by these processes, which can comprise detergents, lubricants, and lubricant additives, are disclosed.

    摘要翻译: 公开了通过链烷烃脱氢然后烯烃异构化然后通过轻支化烯烃烷基化苯基化合物生产苯基烷烃的方法。 烷基化部分的流出物包含再循环到脱氢步骤的链烷烃。 还公开了具有轻支化脂族烷基的苯基烷烃磺化以生产改性烷基苯磺酸盐的方法。 此外,公开了通过这些方法制备的组合物,其可以包含洗涤剂,润滑剂和润滑剂添加剂。

    Dehydrogenation process using layered catalyst composition
    24.
    发明授权
    Dehydrogenation process using layered catalyst composition 失效
    使用层状催化剂组合物的脱氢方法

    公开(公告)号:US06486370B1

    公开(公告)日:2002-11-26

    申请号:US09887229

    申请日:2001-06-22

    IPC分类号: C07C532

    摘要: This invention relates to a dehydrogenation process using a layered catalyst composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons, especially at dehydrogenation conditions comprising a low water concentration.

    摘要翻译: 本发明涉及使用层状催化剂组合物的脱氢方法。 催化剂组合物包含内核如α-氧化铝,和外层结合到内核,由内部难熔无机氧化物如γ-氧化铝组成。 外层在其上均匀分散有铂族金属如铂和助催化剂金属如锡。 该组合物还含有改性金属如锂。 催化剂组合物显示改进的耐烃性和对脱氢烃的选择性,特别是在包含低水浓度的脱氢条件下。

    Arylalkane compositions produced by isomerization, dehydrogenation, and alkylation
    25.
    发明授权
    Arylalkane compositions produced by isomerization, dehydrogenation, and alkylation 有权
    通过异构化,脱氢和烷基化生产的芳基烯烃组合物

    公开(公告)号:US06448458B1

    公开(公告)日:2002-09-10

    申请号:US09705859

    申请日:2000-11-03

    IPC分类号: C07C1500

    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。

    Process for producing arylalkanes and arylalkane sulfonates, compositions produced therefrom, and uses thereof
    26.
    发明授权
    Process for producing arylalkanes and arylalkane sulfonates, compositions produced therefrom, and uses thereof 有权
    制备芳基烷烃和芳基链烷烃磺酸盐的方法,由其制备的组合物及其用途

    公开(公告)号:US06187981B1

    公开(公告)日:2001-02-13

    申请号:US09356574

    申请日:1999-07-19

    IPC分类号: C07C266

    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。

    Process for linear alpha-olefin production: eliminating wax precipitation
    27.
    发明授权
    Process for linear alpha-olefin production: eliminating wax precipitation 失效
    线性α-烯烃生产方法:消除蜡沉淀

    公开(公告)号:US5523508A

    公开(公告)日:1996-06-04

    申请号:US366153

    申请日:1994-12-29

    IPC分类号: C07C2/08 C07C2/26 C07C2/24

    CPC分类号: C07C2/26 C07C2/08 C07C2531/02

    摘要: Linear alpha-olefin formation via oligomerization of ethylene using transition metal catalysis leads to a Schultz-Flory distribution of oligomers. At modest temperatures formation of heavy oligomers which are waxy solids only partly soluble in the LAO product mix causes reactor plugging and curtailing the time of continuous runs. Recycling a portion of a lighter oligomeric fraction obviates this problem and permits runs uninterrupted by solids formation.

    摘要翻译: 使用过渡金属催化通过乙烯低聚形成线性α-烯烃导致低聚物的Schultz-Flory分布。 在适度的温度下,仅仅部分溶解在LAO产物混合物中的蜡状固体的重低聚物的形成导致反应器堵塞并且缩短连续运行的时间。 回收较轻的低聚部分的一部分消除了这个问题,并允许不间断地通过固体形成运行。

    Process for reducing benzene content in gasoline
    28.
    发明授权
    Process for reducing benzene content in gasoline 失效
    降低汽油中苯含量的方法

    公开(公告)号:US5120890A

    公开(公告)日:1992-06-09

    申请号:US636354

    申请日:1990-12-31

    IPC分类号: C10G29/20

    CPC分类号: C10G29/205

    摘要: A process is disclosed for reducing benzene and toluene content in light gasoline streams comprising benzene or benzene and toluene but comprising substantially no other aromatic-hydrocarbons. The light gasoline streams may be prepared by distillation of full boiling range gasoline streams from catalytic reforming or fluidized-bed catalytic cracking units. High alkylating agent to benzene ratios are utilized in the presence of a solid alkylation catalyst to achieve a benzene conversion of 70% of more in a single pass through the reaction zone. Alkylating agent is simultaneously injected into the alkylation zone at two or more separate injection points to minimize undersirable side reactions. The alkylation product may be recovered and blended with other gasoline components to produce automotive fuel which is low in benzene content and high octane in rating.

    摘要翻译: 公开了一种用于在包含苯或苯和甲苯的轻汽油流中降低苯和甲苯含量但不包含其它芳族烃的方法。 轻汽油流可以通过从催化重整或流化床催化裂化装置蒸馏全沸程汽油流来制备。 在固体烷基化催化剂的存在下使用高烷基化剂与苯的比例,以在通过反应区的单程中达到70%以上的苯转化率。 烷基化剂在两个或更多个分离的注射点同时注入烷基化区,以最小化不利的副反应。 可以回收烷基化产物并与其他汽油组分混合以产生苯含量低和辛烷值高的汽车燃料。

    Catalyst for the isomerization of aromatics
    29.
    发明授权
    Catalyst for the isomerization of aromatics 失效
    用于芳烃异构化的催化剂

    公开(公告)号:US4939110A

    公开(公告)日:1990-07-03

    申请号:US394038

    申请日:1989-08-14

    CPC分类号: C07C5/2791 Y02P20/52

    摘要: An improved catalyst is disclosed for the conversion of aromatic hydrocarbons which comprise a Group VIII metal, lead, a pentasil zeolite, and an inorganic oxide binder, wherein 80-100% of the Group VIII metal and 60-100% of the lead are contained on the binder. An alkylaromatic isomerization process also is disclosed which is particularly effective for the conversion of ethylbenzene without substantial loss of xylenes.

    摘要翻译: 公开了一种改进的催化剂用于转化包含VIII族金属,铅,pentasil沸石和无机氧化物粘合剂的芳族烃,其中含有80-100%的VIII族金属和60-100%的铅含有 在粘合剂上。 还公开了一种烷基芳族异构化方法,其对乙苯的转化特别有效,而不会显着损失二甲苯。

    Catalyst for treatment of exhaust gases from internal combustion engines
    30.
    发明授权
    Catalyst for treatment of exhaust gases from internal combustion engines 失效
    用于处理内燃机废气的催化剂

    公开(公告)号:US4919902A

    公开(公告)日:1990-04-24

    申请号:US269389

    申请日:1988-11-09

    摘要: This invention relates to a catalytic composite for treating an exhaust gas comprising a support which is a refractory inorganic oxide having dispersed thereon lanthanum, at least one other rare earth component and at least one noble metal component selected from the group consisting of platinum, palladium, rhodium, ruthenium and iridium. An essential feature of said catalytic composite is that the lanthanum be present as crystalline particles of lanthanum oxide which have an average crystallite size of less than about 25 Angstroms. The support may be selected from the group consisting of alumina, silica, titania, zirconia, aluminosilicates and mixtures thereof with alumina being preferred. Illustrative of the other rare earth components are cerium, neodymium, praeseodymium, dysprosium, europium, holmium and ytterbium. An important feature in manufacturing the catalytic composite is the dispersion of lanthanum oxide onto said refractory inorganic oxide support. In a specific example, lanthanum may be dispersed on alumina as follows. A solution of a lanthanum salt is mixed with a hydrosol of aluminum, particles are formed from said lanthanum containing hydrosol, calcined to form an inorganic oxide particle containing lanthanum oxide, ground to give a powder of alumina containing finely dispersed lanthanum oxide. This powder in turn can be mixed with another rare earth oxide such as cerium oxide to a slurry which in turn is used to coat a solid monolithic carrier. Finally, at least one noble metal component is dispersed on said coated solid monolithic carrier.

    摘要翻译: 本发明涉及一种用于处理废气的催化剂复合材料,其包括:分散在其上的难熔无机氧化物的载体,至少一种其它稀土组分和至少一种贵金属组分,所述至少一种贵金属组分选自铂,钯, 铑,钌和铱。 所述催化复合材料的一个基本特征是镧作为平均微晶尺寸小于约25埃的氧化镧晶体颗粒存在。 载体可以选自氧化铝,二氧化硅,二氧化钛,氧化锆,铝硅酸盐及其与氧化铝的混合物。 其他稀土成分的说明是铈,钕,镨,镝,铕,钬和镱。 制造催化复合材料的一个重要特征是氧化镧在所述耐火无机氧化物载体上的分散。 在具体实例中,镧可以如下分散在氧化铝上。 将镧盐溶液与铝的水溶胶混合,由所述含镧水溶胶形成颗粒,煅烧形成含有氧化镧的无机氧化物,研磨得到含有细分散的氧化镧的氧化铝粉末。 这种粉末又可以与另一种稀土氧化物如氧化铈混合到一种浆料中,浆料又用于涂覆固体整体载体。 最后,将至少一种贵金属组分分散在所述涂覆的固体单片载体上。