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公开(公告)号：US5413697A
公开(公告)日：1995-05-09
申请号：US913326
申请日：1992-07-15
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 containing, preferably an intermediate pore size zeolite such as ZSM-5 and a zeolite such as 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通过加氢脱硫然后在含有优选中等孔径沸石如ZSM-5和沸石如MCM-22的酸性催化剂上进行处理由催化裂解的含硫石脑油生产。 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。
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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
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。
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公开(公告)号：USRE31774E
公开(公告)日：1984-12-18
申请号：US532347
申请日：1983-09-15
IPC分类号： G01R19/02 , G01R21/133
CPC分类号： G01R19/02 , G01R21/133
摘要： There is provided a method for measuring a parameter whose value is calculable as an integral with time of a function of at least one variable so as to make possible the use of a microprocessor when measurements of such variables are desired. The variable is sampled periodically at a frequency asynchronous with the wave form which the variable follows and then there is periodically calculated the value of the function by summing the values for the function determined by the samples taken during the time between the calculations, thus determining the desired integral.
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公开(公告)号：US5503734A
公开(公告)日：1996-04-02
申请号：US367670
申请日：1994-12-30
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 by hydrodesulfurization followed by treatment over an acidic catalyst, preferably a catalyst comprising an intermediate pore size zeolite, such as ZSM-5, and a large pore size zeolite, including a metal hydrogenation function, such as a faujasite, preferably USY, which contains nickel and molybdenum. 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. Use of the intermediate pore size zeolite and the large pore size zeolite is expected to provide more boiling point conversion than either zeolite alone under the same conditions.
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，优选包括中等孔径沸石如ZSM-5的催化剂和大孔径 沸石，包括金属氢化功能，例如含有镍和钼的八面沸石，优选USY。 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。 中等孔径沸石和大孔径沸石的使用预期在相同条件下单独使用沸石提供更多的沸点转化率。
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公开(公告)号：US5409596A
公开(公告)日：1995-04-25
申请号：US850106
申请日：1992-03-12
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 by hydrodesulfurization followed by treatment over an acidic catalyst, preferably 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. 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通过加氢脱硫然后在酸性催化剂，优选中等孔径的沸石如ZSM-5上处理由催化裂化的含硫石脑油产生。 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。
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公开(公告)号：US5346609A
公开(公告)日：1994-09-13
申请号：US745311
申请日：1991-08-15
CPC分类号： C10G69/08
摘要： A process for producing a desulfurized gasoline boiling range product of relatively high octane number from a sulfur containing feed boiling in the naphtha boiling range by converting the feed in a first stage over a conventional hydrodesulfurization catalyst, and then converting at least the normally liquid portion of the product of this first stage conversion over a catalyst comprising a zeolitic behaving refractory solid having acid activity and shape selectivity to produce a product having a sulfur content within the required specifications, and an octane number which at least approaches the octane number of the feed.
摘要翻译： 通过在常规加氢脱硫催化剂中将第一阶段中的进料转化，然后将至少正常液体部分转化成来，从含有沸石沸点沸点的含硫原料中生产具有相对高辛烷值的脱硫汽油沸点产物的方法 该催化剂的第一阶段转化的产物包含具有酸活性和形状选择性的沸石行为的耐火固体，以产生具有所需规格的硫含量的产物，以及至少接近进料辛烷值的辛烷值。
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公开(公告)号：US5308471A
公开(公告)日：1994-05-03
申请号：US915571
申请日：1992-07-20
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, modified to reduce surface acidity, and preferably 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. 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通过加氢脱硫然后在酸性催化剂上处理，经改性以降低表面酸度，优选中等孔径沸石如ZSM-5，由催化裂解的含硫石脑油生产。 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。
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公开(公告)号：US4714646A
公开(公告)日：1987-12-22
申请号：US60962
申请日：1987-06-17
CPC分类号： H05K1/056 , H05K2201/0209 , H05K2203/135 , H05K3/181 , H05K3/445 , Y10S428/901 , Y10T428/24876 , Y10T428/24917
摘要： A printed circuit with an internal metal sheet for heat dissipation has a roughened aluminum sheet with via holes coated with acrylic or epoxy resin containing thixotropic fumed silicon dioxide or silicate clay. The resin and thixotropic agent are electrophoretically coated. The thixotropic agent may act both to even the coating around edges and as a material upon which metal plating of the printed circuit is bonded.
摘要翻译： 具有用于散热的内部金属片的印刷电路具有粗糙的铝板，其具有涂覆有触变性热解二氧化硅或硅酸盐粘土的丙烯酸或环氧树脂的通孔。 树脂和触变剂电泳涂布。 触变剂可以均匀地作用于边缘附近的涂层和作为印刷电路的金属电镀结合的材料。
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公开(公告)号：US09322793B2
公开(公告)日：2016-04-26
申请号：US13640344
申请日：2011-04-08
IPC分类号： G01N25/00 , B01J20/08 , B01J20/10 , B01J20/18 , C10G29/20 , C10G45/72 , C10G47/36 , C10G61/00 , C10G69/12 , B01J29/70
CPC分类号： G01N25/00 , B01J20/08 , B01J20/10 , B01J20/18 , B01J29/70 , B01J29/7038 , C07C2/70 , C07C2529/06 , C10G29/205 , C10G45/08 , C10G45/72 , C10G47/36 , C10G61/00 , C10G69/123 , C10G2300/1092 , C10G2300/1096 , C10G2300/202 , C10G2300/205 , C10G2400/30
摘要： Disclosed is a method for determining when to replace a guard bed material used to remove one or more catalyst poisons from a feed based on a parameter change in a process. A guard bed having a guard bed material is in fluid communication with a catalyst bed having a catalyst. At least three monitors are positioned in said guard bed or said catalyst bed and at least one parameter of the guard bed or catalyst bed is monitored. A feed component comprising one or more catalyst poisons is supplied to said guard bed or said catalyst bed. The feed is contacted with said guard bed material or said catalyst to remove at least a portion of a catalyst poison and to form a product which produces an increase or a decrease in said parameter. The monitored parameters are compared to determine when to replace the guard bed material.
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公开(公告)号：US5298150A
公开(公告)日：1994-03-29
申请号：US929544
申请日：1992-08-13
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 comprising a zeolite sorbing 10 to 40 mg 3-methylpentane at 90.degree. C., 90 torr, per gram dry zeolite in the hydrogen form, e.g., ZSM-22, ZSM-23, or ZSM-35. 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 use of the specified zeolite provides greater desulfurization, gasoline selectivity, and octane than obtained using ZSM-5.
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含有吸附10至40mg 3-甲基戊烷的沸石酸性催化剂上处理，该沸石在90℃，90托，每克 氢形式的干沸石，例如ZSM-22，ZSM-23或ZSM-35。 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。 使用指定的沸石比使用ZSM-5获得的提供更大的脱硫，汽油选择性和辛烷值。
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