Removal of trace olefins from aromatic hydrocarbons
    1.
    发明授权
    Removal of trace olefins from aromatic hydrocarbons 失效
    从芳烃中除去痕量烯烃

    公开(公告)号:US4795550A

    公开(公告)日:1989-01-03

    申请号:US34811

    申请日:1987-04-03

    IPC分类号: C10G29/20 C10G25/03

    CPC分类号: C10G29/205

    摘要: This invention presents a novel treating process for the removal of trace quantities of olefinic impurities from a hydrocarbon process stream. Specifically, this process operates at liquid phase conditions treating hydrocarbon streams comprising substantially aromatics and naphthenes having Bromine Index values of about 50 to 2,000. A solid medium comprising a crystalline aluminosilicate zeolite and a refractory oxide is used to reduce the level of olefin impurities to Bromine Index values of 0.1 to 50.

    摘要翻译: 本发明提出了一种从烃工艺流中除去痕量烯属杂质的新型处理方法。 具体地说,该方法在液相条件下操作,处理基本上含有约50至2,000的溴指数值的芳烃和环烷烃的烃流。 使用包含结晶硅铝酸盐沸石和难熔氧化物的固体介质将烯烃杂质的含量降低至溴指数值为0.1至50。

    Sapo catalysts and use thereof in methanol conversion processes
    7.
    发明授权
    Sapo catalysts and use thereof in methanol conversion processes 失效
    Sapo催化剂及其在甲醇转化过程中的应用

    公开(公告)号:US5248647A

    公开(公告)日:1993-09-28

    申请号:US793874

    申请日:1991-12-23

    申请人: Paul T. Barger

    发明人: Paul T. Barger

    IPC分类号: B01J29/85 C07C1/20

    摘要: Hydrothermal treatment of silicoaluminophosphate molecular sieves at temperatures in excess of about 700.degree. C. for periods sufficient to destroy a large proportion of their acid sites while retaining at least 80 percent of their crystallinity is found to result in a catalyst for converting methanol to lower olefins having increased catalyst life, increased selectivity for C.sub.2 -C.sub.3 olefins and decreased selectivity for paraffin production than the untreated SAPO-n starting composition.

    摘要翻译: 在超过约700℃的温度下水热处理硅铝磷酸盐分子筛,足以破坏其大部分酸性位点同时保持其至少80%的结晶度的时间段被发现导致用于将甲醇转化为低级烯烃的催化剂 与未处理的SAPO-n起始组合物相比,催化剂寿命增加,C2-C3烯烃的选择性提高,石蜡生产的选择性降低。

    Process for converting methanol to olefins using an improved metal
aluminophosphate catalyst
    8.
    发明授权
    Process for converting methanol to olefins using an improved metal aluminophosphate catalyst 失效
    使用改进的金属磷酸铝催化剂将甲醇转化为烯烃的方法

    公开(公告)号:US5191141A

    公开(公告)日:1993-03-02

    申请号:US862018

    申请日:1992-04-01

    IPC分类号: B01J29/84 B01J29/85 C07C1/20

    摘要: This invention relates to an improved process for converting methanol to light olefins using an ELAPO catalyst. The catalyst comprises a metal aluminophosphate molecular sieve having the empirical formula (EL.sub.x Al.sub.y P.sub.z)O.sub.2 where EL is a metal and x,y and z are mole fractions of EL, Al and P respectively. Preferred metals are silicon, magnesium and cobalt, with silicon especially preferred. The molecular sieve catalyst is composed of particles at least 50% of which have a particle size less than 1.0 .mu.m and no more than 10% of the particles have a particle size greater than 2.0 .mu.m. It is also preferred that the metal content (x) be from about 0.005 and 0.05 mole fraction.

    摘要翻译: 本发明涉及使用ELAPO催化剂将甲醇转化为轻质烯烃的改进方法。 催化剂包括具有经验式(ELxAlyPz)O 2的金属铝磷酸盐分子筛,其中EL是金属,x,y和z分别是EL,Al和P的摩尔分数。 优选的金属是硅,镁和钴,特别优选硅。 分子筛催化剂由至少50%的粒径小于1.0μm且不超过10%的颗粒具有大于2.0μm的粒度的颗粒组成。 金属含量(x)也优选为约0.005和0.05摩尔分数。

    Process for the isomerization of dimethylnaphthalenes
    9.
    发明授权
    Process for the isomerization of dimethylnaphthalenes 失效
    二甲基萘异构化的方法

    公开(公告)号:US4777312A

    公开(公告)日:1988-10-11

    申请号:US138249

    申请日:1987-12-28

    摘要: Superior isomerization performance is obtained in an isomerization process employing a catalytic composition comprising a Group VIII noble metal and a hydrogen form mordenite incorporated with alumina. The superior isomerization performance is achieved using a catalyst composition having a surface area of at least 580 m.sup.2 /g. A novel method of preparing an isomerization catalyst having a surface area of at least 580 m.sup.2 /g is characterized by contacting a formed catalytic composite with an acidic aqueous solution prior to addition of the Group VIII noble metal. The isomerization process is particularly useful in the isomerization of a dimethylnaphthalene containing feedstock into a product that contains a higher concentration of the 2,6-dimethylnaphthalene isomer than did the feedstock.

    摘要翻译: 在使用包含VIII族贵金属和与氧化铝结合的氢形式丝光沸石的催化组合物的异构化方法中获得了优异的异构化性能。 使用具有至少580m 2 / g的表面积的催化剂组合物来实现优异的异构化性能。 制备具有至少580m 2 / g的表面积的异构化催化剂的新方法的特征在于,在加入第VIII族贵金属之前,使形成的催化剂复合物与酸性水溶液接触。 异构化方法特别可用于将含二甲基萘的原料异构化成含有比原料更高浓度的2,6-二甲基萘异构体的产物。

    Process for the oligomerization of olefins and a catalyst thereof
    10.
    发明授权
    Process for the oligomerization of olefins and a catalyst thereof 失效
    烯烃低聚方法及其催化剂

    公开(公告)号:US4737479A

    公开(公告)日:1988-04-12

    申请号:US25535

    申请日:1987-03-13

    IPC分类号: B01J31/02 B01J31/14 C07C2/30

    摘要: An olefinic feedstock containing contaminants such as oxygenates may be oligomerized to a desired oligomer which contains a particular configuration. The process may be effected by utilizing a catalyst which comprises a porous support containing a catalytically effective amount of a non-stoichiometric hydrogen and oxygen-containing iron group metal compound in combination with a catalytically effective amount of an alkyl aluminum compound and an activator comprising an aluminum alkoxide. The presence of the latter compound in the catalyst compound will permit the catalyst to maintain its activity and stability over a relatively long period of time.

    摘要翻译: 含有污染物如含氧化合物的烯烃原料可以低聚至包含特定构型的所需低聚物。 该方法可以通过使用包含含有催化有效量的非化学计量的氢和含氧铁族金属化合物的多孔载体与催化有效量的烷基铝化合物和包含 烷氧化铝 催化剂化合物中后一种化合物的存在将允许催化剂在相当长的时间内保持其活性和稳定性。