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    Multistage indirect propylene hydration process for the production of diisopropyl ether and isopropanol
    3.
    发明授权
    Multistage indirect propylene hydration process for the production of diisopropyl ether and isopropanol 失效
    多级间接丙烯水合法生产二异丙醚和异丙醇

    公开(公告)号：US5569789A

    公开(公告)日：1996-10-29

    申请号：US510371

    申请日：1995-08-02

    申请人： Weldon K. Bell ,  Stephen H. Brown ,  Jeffrey C. Trewella

    发明人： Weldon K. Bell ,  Stephen H. Brown ,  Jeffrey C. Trewella

    IPC分类号： C07C29/04 ,  C07C41/05 ,  C07C29/00 ,  C07C31/10 ,  C07C41/06 ,  C07C43/04

    CPC分类号： C07C41/05 ,  C07C29/04 ,  C07C41/06

    摘要： A multistaged fixed catalyst bed process for the production of diisopropyl ether and isopropanol is disclosed comprising a fixed bed of serially connected stages containing zeolite Beta catalyst. A feedstream of propylene and water equivalents selected from the group consisting of water, isopropanol and diisopropyl ether is introduced into each stage at a rate sufficient to provide a mole ratio of water equivalents to propylene equivalents that increases in increments by stage from at least 0.1 in a first stage to at most 1.2 in a final stage. The feedstream is introduced at a temperature between 50.degree. and 450.degree. C., pressure between 700 and 24000 kPa, and weight hourly space velocity between 0.10 and 30, based on catalyst, whereby a single non-aqueous liquid phase is maintained in the fixed bed. An effluent product stream is recovered comprising diisopropyl ether, isopropanol and water from the final stage. Isopropanol is recycled to the first stage when the preferred product is diisopropyl ether. When the preferred product is isopropanol, diisopropyl ether and water are recycled to the first stage.

    摘要翻译： 公开了一种用于生产二异丙醚和异丙醇的多阶段固定催化剂床方法，其包括含有沸石β催化剂的连续连续步骤的固定床。 将丙烯和水当量的进料流选自水，异丙醇和二异丙基醚以足以提供水当量与丙烯当量的摩尔比的速率被引入每个阶段，其增量逐步增加至少0.1 在最后阶段达到最多1.2的第一阶段。 基于催化剂，在50〜450℃的温度，700〜24000kPa的压力和0.10〜30的重时空速下引入原料流，由此将单一的非水性液相保持在固定 床。 从最后阶段回收包含二异丙基醚，异丙醇和水的流出物产物流。 当优选的产物是二异丙醚时，异丙醇被再循环到第一阶段。 当优选的产物是异丙醇时，二异丙醚和水再循环到第一阶段。

    Hydrocarbon upgrading process
    7.
    发明授权
    Hydrocarbon upgrading process 失效
    碳氢化合物升级过程

    公开(公告)号：US5865988A

    公开(公告)日：1999-02-02

    申请号：US862238

    申请日：1997-05-23

    申请人： Nick A. Collins ,  Paul P. Durand ,  Timothy L. Hilbert ,  Gerald J. Teitman ,  Jeffrey C. Trewella

    发明人： Nick A. Collins ,  Paul P. Durand ,  Timothy L. Hilbert ,  Gerald J. Teitman ,  Jeffrey C. Trewella

    IPC分类号： C10G65/04 ,  C10G69/04 ,  C10G69/08

    CPC分类号： C10G69/08 ,  C10G65/043 ,  C10G2400/02

    摘要： Low sulfur gasoline is produced from an olefinic, cracked, sulfur-containing naphtha by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 to crack low octane paraffins and olefins under relatively mild conditions, with limited aromatization of olefins and naphthenes. This is followed by hydrodesulfurization over a hydrotreating catalyst such as CoMo on alumina. The initial treatment over the acidic catalyst removes the olefins which would otherwise be saturated in the hydrodesulfurization, consuming hydrogen and lowering product octane, and converts them to compounds which make a positive contribution to octane. Overall liquid yield is high, typically at least 90 percent of higher. Product aromatics are typically increased by no more than 25 weight percent relative to the feed and may be lower than the feed.

    摘要翻译： 通过在酸性催化剂，优选中等孔径沸石如ZSM-5上处理，在相对温和的条件下裂化低辛烷值和烯烃，烯烃，裂化的含硫石脑油的烯烃，裂化的含硫石脑油的烯烃有限， 和环烷烃。 然后在加氢处理催化剂如氧化铝上的CoMo上进行加氢脱硫。 在酸性催化剂上的初始处理除去在加氢脱硫中会饱和的烯烃，消耗氢气并降低产物辛烷值，并将它们转化成对辛烷有积极贡献的化合物。 总体液体产量高，通常至少高达90％。 产物芳族化合物通常相对于进料增加不超过25重量％，并且可以低于进料。

    Polyalkylene succinimide deposit control additives and fuel compositions containing same
    8.
    发明授权
    Polyalkylene succinimide deposit control additives and fuel compositions containing same 失效
    聚亚烷基琥珀酰亚胺沉积物控制添加剂和包含其的燃料组合物

    公开(公告)号：US5114435A

    公开(公告)日：1992-05-19

    申请号：US481938

    申请日：1990-02-20

    申请人： Guy P. Abramo ,  Jeffrey C. Trewella

    发明人： Guy P. Abramo ,  Jeffrey C. Trewella

    IPC分类号： C10L1/14 ,  C10L1/16 ,  C10L1/22 ,  F02B3/06

    CPC分类号： C10L1/143 ,  C10L1/1616 ,  C10L1/1641 ,  C10L1/2383 ,  F02B3/06

    摘要： Deposits on intake valves in gasoline internal combustion engines are reduced by an additive for fuel compositions comprising a mixture of (1) a polyalkylene succinimide, (2) a polyalkylene and (3) a mineral oil. The invention also comprises a fuel composition made up of a major amount of liquid hydrocarbon fuel such as gasoline or diesel and a minor amount of the aforesaid mixture. In still another aspect the invention comprises a method for removing and/or preventing engine deposits which adversely affect the performance of gasoline powered engines by running the engine with a fuel containing an effective amount of the previously described mixture.

    摘要翻译： 汽油内燃机的进气门上的沉积物由用于（1）聚亚烷基琥珀酰亚胺，（2）聚亚烷基和（3）矿物油）的混合物的燃料组合物添加剂减少。 本发明还包括由主要量的液体烃燃料如汽油或柴油和少量上述混合物组成的燃料组合物。 在另一方面，本发明包括一种用于通过使用含有有效量的前述混合物的燃料运行发动机来消除和/或防止发动机沉积物的方法，其不利地影响汽油动力发动机的性能。