Process for the hydration olefins
    3.
    发明授权
    Process for the hydration olefins 失效
    水合烯烃的工艺

    公开(公告)号:US4967020A

    公开(公告)日:1990-10-30

    申请号:US389198

    申请日:1989-08-03

    IPC分类号: B01J29/65 C07C29/04

    CPC分类号: C07C29/04 B01J29/65

    摘要: A process for converting propylene to isopropyl alcohol by contacting water with a propylene-containing feed at a mole ratio of water to propylene of at least about 0.5:1 (water:olefin), usually about 1:1-10:1 in the vapor and/or liquid phase under propylene hydration conditions. The hydration is carried out in the presence of a relatively constrained intermediate pore size zeolite such as ZSM-35 or ferrierite as the hydration catalyst. The zeolite is used in the acid form and with a crystal size of not more than 0.2.mu. to give high activity for conversion to isopropyl alcohol.

    摘要翻译: 通过使水与含丙烯的进料在水与丙烯的摩尔比为至少约0.5:1(水:烯烃),通常为约1:1至1:10:1的蒸气中将丙烯转化为异丙醇的方法 和/或液相在丙烯水合条件下。 水合在相对约束的中等孔径沸石如ZSM-35或镁碱沸石作为水合催化剂存在下进行。 沸石以酸的形式使用,晶体尺寸不超过0.2μm,以提供高转化为异丙醇的活性。

    Alkylaromatic disproportionation
    8.
    发明授权
    Alkylaromatic disproportionation 失效
    烷基芳族歧化

    公开(公告)号:US5329059A

    公开(公告)日:1994-07-12

    申请号:US86256

    申请日:1993-07-06

    申请人: David O. Marler

    发明人: David O. Marler

    CPC分类号: C07C6/123

    摘要: A process is provided for disproportionation of an alkylaromatic compound, alkyl being from 1 to about 6 carbon atoms, e.g., toluene and methylnaphthalene, comprising contacting said compound with catalyst comprising an active form of synthetic porous crystalline MCM-49.

    摘要翻译: 提供了用于歧化烷基芳族化合物,1至约6个碳原子的烷基,例如甲苯和甲基萘的方法,包括使所述化合物与包含活性形式的合成多孔结晶MCM-49的催化剂接触。

    Denitrification of flue gas from catalytic cracking
    9.
    发明授权
    Denitrification of flue gas from catalytic cracking 失效
    烟气从催化裂化中脱氮

    公开(公告)号:US5173278A

    公开(公告)日:1992-12-22

    申请号:US669821

    申请日:1991-03-15

    IPC分类号: B01D53/86 C10G11/18

    摘要: A flue gas that contains small amounts of both HCN and NO.sub.x, produced, for example, by catalyst regeneration in the fluid catalytic cracking of a petroleum gas oil, is readily denitrified by the catalyzed reaction that proceeds approximately according to:HCN+NO.fwdarw.N.sub.2 (gas)+CO+CO.sub.2 +H.sub.2 OIf the molar ratio of HCN to NO in the flue gas is about 1.0, e.g. in the range of about 0.8 to 1.2, effective denitrification is achieved without first changing the composition of the flue gas by contacting it with catalyst under conversion conditions including elevated temperature. If the molar ratio of HCN to NO exceeds 1.2, the ratio may be adjusted to about 1.0 to 1.1 by thermal or catalytic oxidation in the presence of oxygen gas, followed by catalytic denitrification. If the molar ratio is less than about 0.8, the effective molar ratio is adjusted to about 1.0 to 1.1 by adding NH.sub.3 gas, followed by denitirification. In all three instances an excessive content of carbon monoxide in the flue gas may be corrected by passing the denitrified flue gas to a CO-boiler.Catalysts for the denitrification reaction are described and exemplified by crystalline zeolites of the ZSM-5 type, and by vanadium oxide supported on titania.

    摘要翻译: 含有少量HCN和NOx的烟道气,例如通过在石油瓦斯油的流化催化裂化中的催化剂再生产生的烟气,可以通过大致按以下方式进行的催化反应脱氮:HCN + NO-> N2(气体)+ CO + CO2 + H2O如果烟气中HCN与NO的摩尔比为约1.0, 在约0.8至1.2的范围内,无需首先在包括升高的温度的转化条件下将催化剂与催化剂接触,而不改变烟道气的组成,实现有效的脱氮。 如果HCN与NO的摩尔比超过1.2,则在氧气存在下通过热或催化氧化将该比例调节至约1.0至1.1,然后进行催化反硝化。 如果摩尔比小于约0.8,则通过加入NH 3气体将有效摩尔比调节至约1.0-1.1,然后进行脱硝。 在所有三种情况下,可以通过将反硝化烟道气通过CO锅炉来校正烟道气中过量的一氧化碳。 用于脱氮反应的催化剂通过ZSM-5型的结晶沸石和负载在二氧化钛上的氧化钒来描述和例示。