Production of ethylbenzene
    31.
    发明授权
    Production of ethylbenzene 失效
    生产乙苯

    公开(公告)号:US5334795A

    公开(公告)日:1994-08-02

    申请号:US967954

    申请日:1992-10-27

    IPC分类号: C07C2/66

    CPC分类号: C07C2/66 C07C2529/70

    摘要: Ethylbenzene is produced by the alkylation of benzene with ethylene in the presence of an alkylation catalyst having a particular structure defined by its X-ray diffraction pattern. A preferred catalyst is the zeolite MCM-22. The process is typically carried out at a temperature of 300.degree. to 1000.degree. F. but the catalyst provides sufficient activity for the reaction to be carried out at temperatures below 700.degree. F. Liquid phase operation is preferred, giving a lower yield of polyethylated products. The use of the selected catalyst also results in a reduction of the xylene impurity level to values below 500 ppm in the product.

    摘要翻译: 在具有由其X射线衍射图形定义的特定结构的烷基化催化剂存在下,通过苯与乙烯的烷基化生产乙苯。 优选的催化剂是沸石MCM-22。 该方法通常在300至1000°F的温度下进行,但催化剂提供足够的活性以使反应在低于700°F的温度下进行。液相操作是优选的,从而降低聚乙烯化产物的产率 。 使用所选择的催化剂还导致二甲苯杂质水平降低到产品中低于500ppm的值。

    Isobutene and isoamylene production
    32.
    发明授权
    Isobutene and isoamylene production 失效
    异丁烯和异戊烯生产

    公开(公告)号:US5304694A

    公开(公告)日:1994-04-19

    申请号:US883638

    申请日:1992-05-15

    摘要: Catalytic conversion of a C.sub.2 -C.sub.5 alkane, e.g., isobutane and/or isopentane, to isoalkenes, e.g., isobutene and/or isopentene, respectively, is undertaken in the presence of an aromatic recycle stream which provides the heat of reaction for the conversion which is endothermic, in the absence of hydrogen.

    摘要翻译: C2-C5烷烃如异丁烷和/或异戊烷分别转化为异烯烃,例如异丁烯和/或异戊烯,分别在芳烃再循环料流的存在下进行,其提供了转化反应热, 在没有氢的情况下是吸热的。

    Catalytic oligomerization process using modified mesoporous crystalline
material
    34.
    发明授权
    Catalytic oligomerization process using modified mesoporous crystalline material 失效
    使用改性介孔结晶材料的催化低聚方法

    公开(公告)号:US5260501A

    公开(公告)日:1993-11-09

    申请号:US920944

    申请日:1992-07-28

    IPC分类号: C07C2/10 C07C2/12

    摘要: A novel oligomerization catalyst and process for upgrading olefins employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units; and the porous crystalline material is impregnated with at least one oligomerization promoting metal, such as Groups VIIIA metals, preferably nickel.The new process is provided for catalytic oligomerization of olefin feedstock which comprises contacting the feedstock under catalytic conversion conditions with the metal-modified acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The oligomerization reaction is very selective, especially when conducted at temperature of 60.degree. to 120.degree. C. Low severity reaction permits excellent conversion of lower olefins at pressure of about 100-13,000 kPa range and moderate space velocity.

    摘要翻译: 一种新型低聚催化剂和使用新型超大孔结晶材料合成催化剂改质烯烃的方法。 新的结晶材料表现出非常大的吸附能力,其吸附能力在50托和25℃时苯吸附能力大于约15克苯/ 100克,可以用大于约100的d100值进行指数的六方电子衍射图 18埃单位和具有至少约13埃单位的最大垂直横截面的均匀尺寸孔的六边形排列; 并且多孔结晶材料用至少一种低聚促进金属浸渍,例如第VIIIA族金属,优选镍。 提供了用于烯烃原料的催化低聚的新方法,其包括在催化转化条件下使原料与具有MCM-41结构的金属改性的酸式金属硅酸盐固体催化剂接触,六方蜂窝晶格结构基本上由均匀的孔组成, 约20至100埃。 低聚反应是非常有选择性的,特别是在60℃至120℃的温度下进行。低强度反应允许在约100-13000kPa范围和适度的空间速度的压力下对低级烯烃进行极好的转化。

    Catalytic process for hydrocarbon cracking using synthetic mesoporous
crystalline material
    35.
    发明授权
    Catalytic process for hydrocarbon cracking using synthetic mesoporous crystalline material 失效
    使用合成介孔结晶材料进行烃裂解的催化过程

    公开(公告)号:US5232580A

    公开(公告)日:1993-08-03

    申请号:US719205

    申请日:1991-06-21

    摘要: A process for naphtha cracking employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.An improved cracking reaction is provided for catalytic conversion of hydrocarbon feedstock which comprises contacting the feedstock under catalytic conversion conditions with acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The cracking reaction is very selective, especially when conducted at temperature of about 425.degree. to 650.degree. C.

    摘要翻译: 采用新型超大孔结晶材料合成催化剂的石脑油裂解工​​艺。 新的结晶材料表现出非常大的吸附能力,其吸附能力在50托和25℃时苯吸附能力大于约15克苯/ 100克,可以用大于约100的d100值进行指数的六方电子衍射图 18埃单位和具有至少约13埃单位的最大垂直截面的均匀尺寸孔的六边形排列。 提供了用于烃原料的催化转化的改进的裂化反应,其包括在催化转化条件下使原料与具有MCM-41结构的酸性金属硅酸盐固体催化剂接触,其中六方蜂窝晶格结构基本上由约20至 100埃。 裂解反应非常有选择性,特别是在约425〜650℃的温度下进行。

    Olefin upgrading by selective conversion with synthetic mesoporous
crystalline material
    36.
    发明授权
    Olefin upgrading by selective conversion with synthetic mesoporous crystalline material 失效
    烯烃通过合成介孔结晶材料的选择性转化提升

    公开(公告)号:US5191144A

    公开(公告)日:1993-03-02

    申请号:US772184

    申请日:1991-10-07

    IPC分类号: B01J29/70 C07C6/04

    摘要: In the process of olefin disproportionation, a feedstock containing predominatly mono-olefin the feedstock is charged at elevated temperature into a catalytic conversion zone in contact with mesoporous acid olefin conversion catalyst under selective olefin interconversion conditions.The improvement is characterized by a mesoporous acid metallosilicate crystalline catalyst material having Bronsted acid sites in a hexagonal lattice structure, said catalyst material having substantially uniform pores in hexagonal arrangement with a pore size of about 20 to 100 Angstroms units. In the preferred embodiments the olefinic feedstock is reacted for less than 10 seconds in contact with MCM-41 mesoporous metallosilicate catalyst under partial reaction conditions sufficient to provide increased yield of C4 alkene having a ratio of isobutene to normal butenes greater than equilibrium.

    摘要翻译: 在烯烃歧化过程中,主要含有单烯烃的原料将原料在高温下加入到与中孔酸烯烃转化催化剂在选择性烯烃互转条件下接触的催化转化区。 该改进的特征在于具有六角形格子结构的布朗斯台德酸位点的中孔酸金属硅酸盐结晶催化剂材料,所述催化剂材料具有基本上均匀的孔,其孔径大约为20至100埃单位。 在优选的实施方案中,烯烃原料在部分反应条件下与MCM-41介孔金属硅酸盐催化剂接触反应少于10秒,足以提供具有比平衡高的异丁烯与正丁烯的比例的增加的C4烯烃的产率。

    Aromatics alkylation process
    37.
    发明授权
    Aromatics alkylation process 失效
    芳烃烷基化方法

    公开(公告)号:US5191135A

    公开(公告)日:1993-03-02

    申请号:US673925

    申请日:1991-03-25

    IPC分类号: C07C2/66

    摘要: Long chain alkyl substituted aromatic compounds, particularly alkylated naphthalenes, are produced by the alkylation of aromatics, e.g. naphthalene, with an olefin or other alkylating agent possessing at least 6 carbon atoms, usually 12 to 20 carbon atoms, in the presence of a zeolite alkylation catalyst, preferably a large pore size zeolite such as zeolite Y and in the presence of from about 0.5 to 3.0 weight percent water, preferably 1.0 to 3.0 weight percent. The use of the water co-feed increases the selectivity of the alkylation for the production of long chain mono-alkyl substituted naphthalenes in preference to more highly substituted products and also increases activity and catalyst stability.

    摘要翻译: 长链烷基取代的芳族化合物,特别是烷基化萘,通过芳族化合物的烷基化,例如, 萘与具有至少6个碳原子,通常12-20个碳原子的烯烃或其它烷基化剂在沸石烷基化催化剂,优选大孔沸石如沸石Y的存在下并在约0.5的存在下反应 至3.0重量%的水,优选1.0至3.0重量%。 使用水共进料增加了烷基化用于生产长链单烷基取代萘的选择性,优于更高取代的产物,并且还增加了活性和催化剂的稳定性。

    Light cycle oil conversion
    38.
    发明授权
    Light cycle oil conversion 失效
    轻循环油转化

    公开(公告)号:US5171916A

    公开(公告)日:1992-12-15

    申请号:US715269

    申请日:1991-06-14

    IPC分类号: C10G29/20

    CPC分类号: C10G29/205

    摘要: Alkylated aromatic functional fluids are prepared by alkylating a light cycle oil with an alkylating agent, such as an alpha C.sub.14 -olefin or coker gas oil, over a crystalline metallosiicate catalyst, preferably an aluminosilicate, including MCM-22, USY or an acid treated kaolin clay. The process produces an improved light cycle oil in which the heteroatom content of the oil is reduced and a high quality synthetic alkylated aromatic functional fluid base stock boiling above 600.degree. F. The reactor temperature can be elevated to increase the functional fluid yield and the extent of heteroatom removal.

    摘要翻译: 烷基化芳族官能流体通过在结晶金属化合催化剂,优选包括MCM-22,USY或酸处理的高岭土的铝硅酸盐上,用烷基化剂如αC 14 - 烯烃或焦化瓦斯油将轻质循环油烷基化来制备 粘土。 该方法产生改进的轻循环油,其中油的杂原子含量降低,高质量的合成烷基化芳族官能液基料沸点高于600°F。可以提高反应器温度以增加功能流体产率和程度 的杂原子去除。

    Hydrogen transfer process
    40.
    发明授权
    Hydrogen transfer process 失效
    氢转移过程

    公开(公告)号:US5326922A

    公开(公告)日:1994-07-05

    申请号:US929547

    申请日:1992-08-13

    IPC分类号: C07C2/58 C07C5/52

    CPC分类号: C07C5/52 C07C2/58 C07C2529/70

    摘要: The transfer of hydrogen from a paraffin to an olefin is carried out in the presence of, as catalyst, MCM-36. Especially when the paraffin reactant is an isoparaffin, the olefin produced from the reacted isoparaffin may react with unreacted isoparaffin to also produce an alkylate product.

    摘要翻译: 氢气从烷烃转化为烯烃在作为催化剂的MCM-36存在下进行。 特别是当链烷烃反应物是异链烷烃时,由反应的异链烷烃产生的烯烃可与未反应的异链烷烃反应,产生烷基化产物。