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    PRODUCTION OF LOW CLOUD POINT DISTILLATE FUELS
    12.
    发明申请
    PRODUCTION OF LOW CLOUD POINT DISTILLATE FUELS 审中-公开
    生产低云点蒸馏燃料

    公开(公告)号：US20140291202A1

    公开(公告)日：2014-10-02

    申请号：US14193067

    申请日：2014-02-28

    申请人： Xiaochun Xu ,  William J. Novak ,  Timothy L. Hilbert ,  Stephen J. McCarthy

    发明人： Xiaochun Xu ,  William J. Novak ,  Timothy L. Hilbert ,  Stephen J. McCarthy

    IPC分类号： C10G65/12

    CPC分类号： C10G65/12 ,  B01J29/7461 ,  B01J29/7492 ,  B01J35/1004 ,  B01J2229/42 ,  C10G45/62 ,  C10G45/64 ,  C10G65/043 ,  C10G2300/1048 ,  C10G2300/304 ,  C10G2400/04

    摘要： Methods are provided for dewaxing a distillate fuel boiling range feed to improve one or more cold flow properties of the distillate fuel feed, such as cloud point, with reduced consumption of hydrogen during the dewaxing process. The reduced hydrogen consumption is achieved by using a dewaxing catalyst with a reduced content of hydrogenation metals, such as a content of Pt or Pd of from about 0.03 wt % to about 0.35 wt %. A distillate fuel feed can be dewaxed to achieve a desired cloud point differential using a reduced metals content dewaxing catalyst under the same or similar conditions to those required for a dewaxing catalyst with higher metals content.

    摘要翻译： 提供了用于脱蜡馏分燃料沸程进料的方法，以改善蒸馏燃料进料（如浊点）的一种或多种冷流动性能，同时在脱蜡过程中氢的消耗降低。 通过使用具有降低的氢化金属含量的脱蜡催化剂（例如约0.03重量％至约0.35重量％的Pt或Pd含量）来实现降低的氢消耗。 可以在与较高金属含量的脱蜡催化剂相同或相似的条件下使用还原金属含量脱蜡催化剂，将馏出物燃料进料脱蜡以达到所需的浊点差。

    Distillate upgrading process
    17.
    发明授权
    Distillate upgrading process 失效
    馏分升级过程

    公开(公告)号：US5520799A

    公开(公告)日：1996-05-28

    申请号：US309287

    申请日：1994-09-20

    申请人： Stephen H. Brown ,  Paul P. Durand ,  Timothy L. Hilbert ,  Thomas R. Kiliany ,  Chang-Kuei Lee ,  Jeffrey C. Trewella

    发明人： Stephen H. Brown ,  Paul P. Durand ,  Timothy L. Hilbert ,  Thomas R. Kiliany ,  Chang-Kuei Lee ,  Jeffrey C. Trewella

    IPC分类号： C10G45/10 ,  C10G45/44 ,  C10G65/04 ,  C10G65/08 ,  C10G45/00 ,  C10G47/18

    CPC分类号： C10G65/04 ,  C10G45/10 ,  C10G45/44 ,  C10G65/08

    摘要： This invention is a process for the upgrading of distillate feeds. A batch of supported hydroprocessing catalyst is placed in a reaction zone, which is usually a fixed bed reactor. The hydroprocessing catalyst comprises an effective amount of a noble metal or metals and has a specific activity. Both low aromatic diesel and jet fuel may be produced in separate blocks over the same catalyst batch, using different feeds and often different conditions. The activity of the catalyst is restored each time the feed is switched. When production is switched from jet fuel to low aromatics diesel, activity may be regained more quickly by holding the catalyst at a higher temperature than the reaction temperature for a specific period of time prior to dropping the temperature to the reaction temperature. Switching from one feed to the other may continue for about one year before the catalyst batch is changed. A dual catalyst system may alternatively be employed. In this case a hydroprocessing catalyst batch comprising an effective amount of at least one base metal is used in combination with the catalyst comprising an effective amount of at least one noble metal catalyst. The feed contacts the catalyst comprising the base metal before it contacts the catalyst comprising a noble metal. In a dual catalyst system, the feeds may be switched for about two years over the two catalyst batches before fresh catalyst is necessary.

    摘要翻译： 本发明是用于升级馏出物进料的方法。 将一批负载型加氢处理催化剂置于反应区，反应区通常为固定床反应器。 加氢处理催化剂包含有效量的贵金属或金属并具有比活性。 低芳烃柴油和喷气燃料可以在相同的催化剂批次中使用不同的进料和通常不同的条件在不同的块中制备。 每次切换进料时，催化剂的活性得到恢复。 当生产从喷气燃料转换为低芳烃柴油时，通过在将温度降至反应温度之前将催化剂保持在比反应温度更高的温度持续一段特定时间，可以更快地恢复活性。 在催化剂批次改变之前，从一个进料到另一个进料的切换可能会持续约一年。 可以采用双重催化剂体系。 在这种情况下，包含有效量的至少一种贱金属的加氢处理催化剂批料与包含有效量的至少一种贵金属催化剂的催化剂组合使用。 在与包含贵金属的催化剂接触之前，进料接触包含贱金属的催化剂。 在双重催化剂体系中，在新催化剂需要之前，进料可以在两个催化剂批次之间切换大约两年。

    Hydrocarbon upgrading process
    18.
    发明授权
    Hydrocarbon upgrading process 失效
    碳氢化合物升级过程

    公开(公告)号：US5399258A

    公开(公告)日：1995-03-21

    申请号：US988492

    申请日：1992-12-10

    申请人： David L. Fletcher ,  Michael S. Sarli ,  Stuart S. Shih ,  Stephen J. McGovern ,  Douglas S. Diez ,  Mohsen N. Harandi ,  Timothy L. Hilbert

    发明人： David L. Fletcher ,  Michael S. Sarli ,  Stuart S. Shih ,  Stephen J. McGovern ,  Douglas S. Diez ,  Mohsen N. Harandi ,  Timothy L. Hilbert

    IPC分类号： C10G35/095 ,  C10G53/16 ,  C10G67/00 ,  C10G67/16 ,  C10G69/08 ,  C10G45/00

    CPC分类号： C10G35/095 ,  C10G53/16 ,  C10G67/00 ,  C10G67/16 ,  C10G69/08 ,  C10G2300/70

    摘要： Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst under endothermic conditions in a second reaction zone. Heat is added to the endothermic reaction zone to initiate and maintain octane restoring reactions. The preferred acidic catalyst is an intermediate pore size zeolite such as ZSM-5. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. The addition of heat at the second zone prolongs hydrodesulfurization catalyst life by allowing a lower hydrodesulfurization reactor temperature. The addition of heat also maximizes octane increase in the second zone.

    摘要翻译： 相对高辛烷值的低硫汽油由催化裂化的含硫石脑油通过加氢脱硫然后在酸性催化剂上在吸热条件下在第二反应区中进行处理。 将热量加入到吸热反应区中以引发和维持辛烷恢复反应。 优选的酸性催化剂是中等孔径沸石，例如ZSM-5。 在第二步骤中对酸性催化剂的处理恢复了由于氢化处理而发生的辛烷值损失，并导致具有与进料石脑油相当的辛烷值的低硫汽油产物。 通过允许较低的加氢脱硫反应器温度，在第二区域的加热延长了加氢脱硫催化剂寿命。 加热也使第二区域的辛烷值增加最大化。

    Gasoline upgrading process
    19.
    发明授权
    Gasoline upgrading process 失效
    汽油升级过程

    公开(公告)号：US5352354A

    公开(公告)日：1994-10-04

    申请号：US891134

    申请日：1992-06-01

    申请人： David L. Fletcher ,  Timothy L. Hilbert ,  Stephen J. McGovern ,  Michael S. Sarli ,  Stuart S. Shih

    发明人： David L. Fletcher ,  Timothy L. Hilbert ,  Stephen J. McGovern ,  Michael S. Sarli ,  Stuart S. Shih

    IPC分类号： C10G35/095 ,  C10G53/16 ,  C10G67/00 ,  C10G67/16 ,  C10G69/08 ,  C10G69/02

    CPC分类号： C10G35/095 ,  C10G53/16 ,  C10G67/00 ,  C10G67/16 ,  C10G69/08 ,  C10G2300/70

    摘要： Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst defined by its x-ray diffraction pattern and preferably comprising the synthetic zeolite MCM-22. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. In favorable cases, using feeds of extended end point such as heavy naphthas with 95 percent points above about 380.degree. F. (about 193.degree. C.), improvements in both product octane and yield relative to the feed may be obtained.

    摘要翻译： 相对高辛烷值的低硫汽油由催化裂化的含硫石脑油通过加氢脱硫然后在由其X射线衍射图定义的酸性催化剂上处理，优选包含合成沸石MCM-22制备。 在第二步骤中对酸性催化剂的处理恢复了由于氢化处理而发生的辛烷值损失，并导致具有与进料石脑油相当的辛烷值的低硫汽油产物。 在有利的情况下，使用延伸终点的原料如重质石脑油，高于约380°F（约193℃）为95％，可以获得相对于进料的产品辛烷值和产率的改善。

    Gasoline upgrading process
    20.
    发明授权
    Gasoline upgrading process 失效
    汽油升级过程

    公开(公告)号：US5320742A

    公开(公告)日：1994-06-14

    申请号：US963229

    申请日：1992-10-19

    申请人： David L. Fletcher ,  Timothy L. Hilbert ,  David A. Pappal ,  David W. Rumsey ,  Gerald J. Teitman

    发明人： David L. Fletcher ,  Timothy L. Hilbert ,  David A. Pappal ,  David W. Rumsey ,  Gerald J. Teitman

    IPC分类号： C10G35/04 ,  C10G59/00 ,  C10G65/04 ,  C10G67/12 ,  C10G69/08 ,  C10G35/00 ,  C10G45/00

    CPC分类号： C10G69/08 ,  C10G65/043 ,  C10G67/12

    摘要： A sulfur-containing catalytically cracked naphtha is upgraded to form a low-sulfur gasoline product by a process which retains the octane contribution from the olefinic front end of the naphtha. Initially, the mercaptan sulfur in the front end of the cracked naphtha is converted to higher boiling disulfides by oxidation. The front end, which is then essentially an olefinic, high octane sulfur-free material, may be blended directly into the gasoline pool. The back end, which now contains the original higher boiling sulfur components such as thiophenes, together with the sulfur transferred from the front end as disulfides, is hydrotreated to produce a desulfurized product. This desulfurized product, which has undergone a loss in octane by saturation of olefins, is then treated in a second stage, by contact with a catalyst of acidic functionality, preferably a zeolite such as ZSM-5, under conditions which produce a product in the gasoline boiling range of higher octane value. Because this second product may contain combined organic sulfur, it may be subjected to a final desulfurization to reduce organic sulfur to acceptable levels.

    摘要翻译： 通过保留来自石脑油的烯烃前端的辛烷贡献的方法，将含硫催化裂化石脑油升级以形成低硫汽油产物。 最初，裂化石脑油前端的硫醇硫通过氧化转化为较高沸点的二硫化物。 然后，基本上为烯属，高辛烷值的无硫材料的前端可以直接混合到汽油池中。 现在包含原来较高沸点的硫成分如噻吩的后端与从前端转移的硫作为二硫化物一起加氢处理以产生脱硫产物。 然后在第二阶段通过与酸性官能团的催化剂（优选沸石如ZSM-5）接触，在产生烯烃的产物的条件下处理已经经历烯烃饱和的辛烷值损失的该脱硫产物 汽油沸点范围较高的辛烷值。 因为该第二产品可能含有组合的有机硫，所以可以对其进行最终脱硫以将有机硫降低至可接受的水平。