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。

公开(公告)号：US5865987A

公开(公告)日：1999-02-02

申请号：US862229

申请日：1997-05-23

申请人： William S. Borghard ,  Nick A. Collins ,  Paul P. Durand ,  Timothy L. Hilbert ,  Jeffrey C. Trewella

发明人： William S. Borghard ,  Nick A. Collins ,  Paul P. Durand ,  Timothy L. Hilbert ,  Jeffrey C. Trewella

IPC分类号： C10G69/04 ,  C10G29/20 ,  C10G47/16 ,  C10G65/12 ,  C10G69/12 ,  C10G69/08

CPC分类号： C10G29/205 ,  C10G47/16 ,  C10G65/12 ,  C10G69/123

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 mild conditions with limited aromatization of olefins and naphthenes. A benzene-rich co-feed is co-processed with the naphtha to reduce the benzene levels in the co-feed by alkylation. This initial processing step is followed by hydrodesulfurization over a hydrotreating catalyst such as CoMo on alumina. In addition to reducing benzene levels in the combined feeds, 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 or higher. Product aromatics are typically increased by no more than 25 weight percent relative to the combined feeds 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，通过烯烃，裂化的含硫石脑油生产低硫汽油，以在烯烃和环烷烃的芳构化有限的温和条件下裂解低辛烷值链烷烃和烯烃 。 将富含苯的共同进料与石脑油共同处理以通过烷基化降低共进料中的苯含量。 该初始加工步骤之后是在加氢处理催化剂如氧化铝上的CoMo上进行加氢脱硫。 除了降低组合进料中的苯含量之外，对酸性催化剂的初始处理除去在加氢脱硫中会饱和的烯烃，消耗氢气和降低产物辛烷，并将其转化成对辛烷有正贡献的化合物。 总液体产率高，通常至少为90％或更高。 产物芳族化合物通常相对于组合的进料增加不超过25重量％，并且可以低于进料。

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。

公开(公告)号：US5391288A

公开(公告)日：1995-02-21

申请号：US74572

申请日：1993-06-10

申请人： Nick A. Collins ,  Paul P. Durand ,  David L. Fletcher ,  Mohsen N. Harandi ,  Edward F. Kondis ,  Hartley Owen ,  Michael S. Sarli ,  Stuart S. Shih

发明人： Nick A. Collins ,  Paul P. Durand ,  David L. Fletcher ,  Mohsen N. Harandi ,  Edward F. Kondis ,  Hartley Owen ,  Michael S. Sarli ,  Stuart S. Shih

IPC分类号： C10G69/08 ,  C10G45/00 ,  C10G69/00

CPC分类号： C10G69/08

摘要： Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha and benzene-rich fraction by hydrodesulfurization in a first reaction zone and treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 in a second reaction zone to reduce the octane loss which takes place as a result of the hydrodesulfurization. The benzene-rich fraction can be cofed to the first reaction zone or the second reaction zone. The benzene-rich fraction is preferably a heart-cut reformate.

摘要翻译： 相对高辛烷值的低硫汽油通过在第一反应区中的加氢脱硫从催化裂解的含硫石脑油和富含苯的馏分中生产，并通过酸性催化剂，优选中等孔径的沸石如ZSM-5在 第二反应区，以减少由于加氢脱硫而发生的辛烷值损失。 富含苯的级分可以与第一反应区或第二反应区共同合成。 富含苯的馏分优选是心切的重整产物。

公开(公告)号：US5500108A

公开(公告)日：1996-03-19

申请号：US303908

申请日：1994-09-09

申请人： Paul P. Durand ,  Hye K. C. Timken

发明人： Paul P. Durand ,  Hye K. C. Timken

IPC分类号： B01J29/40 ,  B01J29/48 ,  C10G35/095 ,  C10G69/08 ,  C10G69/02

CPC分类号： C10G69/08 ,  C10G35/095

摘要： Low sulfur gasoline of relatively high octane number is produced from a cracked, sulfur-containing olefinic naphthas by hydrodesulfurization followed by treatment over an acidic catalyst comprising an intermediate pore size zeolite such as zeolite ZSM-5 in combination with molybdenum. The use of the molybdenum in combination with the zeolite has been found to give improved catalytic acitivity coupled with lower coking, longer catalyst life and other advantages.

摘要翻译： 相对高辛烷值的低硫汽油由裂化的含硫烯烃石脑油通过加氢脱硫然后在包含中等孔径的沸石如沸石ZSM-5与钼的组合的酸性催化剂上进行处理生产。 已经发现使用钼与沸石结合提供了改善的催化活性，加上较低的焦化，更长的催化剂寿命和其它优点。