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公开(公告)号：US5599439A
公开(公告)日：1997-02-04
申请号：US322466
申请日：1994-10-14
CPC分类号： C10G69/08
摘要： A low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by octane enhancing treatment in a fluidized bed catalytic process, in the presence of an aromatics-rich feedstream. The process converts the hydrodesulfurized intermediate and the aromatics-rich feedstream to a gasoline boiling range fraction of high octane number. The fluidized bed catalytic process is carried out over zeolite catalyst particles in a turbulent reactor bed at a temperature of about 600.degree. to 800.degree. F. (316.degree. to 427.degree. C.) and pressure of about 100 to 250 psig (790 to 825 kPa. The catalyst has an apparent particle density of about 0.9 to 1.6 g/cm.sup.3 and a size range of about 1 to 150 microns, and average catalyst particle size of about 20 to 100 microns containing about 10 to 25 weight percent of fine particles having a particle size less than 32 microns. The feed vapor is passed upwardly through the fluidized catalyst bed under turbulent flow conditions; turbulent fluidized bed conditions are maintained through the reactor bed between transition velocity and transport velocity at a superficial fluid velocity of about 0.3 to 2 meters per second. Treatment in the fluidized bed catalytic process 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.
摘要翻译： 通过加氢脱硫，然后在富含芳烃的进料流存在下，在流化床催化方法中进行辛烷值增强处理，由催化裂解的含硫石脑油产生相对高辛烷值的低硫汽油。 该方法将加氢脱硫中间体和富含芳烃的进料流转化为高辛烷值的汽油沸程。 流化床催化过程在湍流反应器床中在沸点催化剂颗粒上进行，温度为约600至800°F（316至427℃），压力为约100至250psig（790至825 催化剂具有约0.9至1.6g / cm 3的表观颗粒密度和约1至150微米的尺寸范围，并且约20至100微米的平均催化剂颗粒尺寸含有约10至25重量％的具有 进料蒸气在湍流条件下向上通过流化催化剂床;湍流流化床条件通过反应器床保持在过渡速度和输送速度之间，表面流体速度约为0.3至2 流化床催化过程中的处理恢复了由于氢化处理而发生的辛烷值损失，导致低硫汽油产物与 辛烷值与进料石脑油相当。
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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：US5763727A
公开(公告)日：1998-06-09
申请号：US11573
申请日：1993-02-01
申请人： Nick A. Collins , Mohsen N. Harandi
发明人： Nick A. Collins , Mohsen N. Harandi
CPC分类号： C07C6/10 , C07C2529/44 , C07C2529/70
摘要： A process is provided for the disproportionation of C.sub.3 -C.sub.5 paraffins. Propane, butanes and/or pentanes are reacted over a zeolite catalyst having a low acid activity in a turbulent fluidized bed reactor regenerator system operating at low to moderate pressures.
摘要翻译： 提供了C3-C5链烷烃歧化的方法。 丙烷，丁烷和/或戊烷在低中压下在湍流流化床反应器再生器系统中在具有低酸活性的沸石催化剂上反应。
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公开(公告)号：US5401391A
公开(公告)日：1995-03-28
申请号：US28055
申请日：1993-03-08
摘要： A process for desulfurizing a hydrocarbon stream which includes at least 100 ppmw sulfur in the form of organic sulfur compounds, and C.sub.4 -hydrocarbons. The hydrocarbon stream is contacted in the absence of added hydrogen with a fluidized bed of an acidic catalyst having a structure of ZSM-5, ZSM-11, ZSM-22, ZSM-23, ZSM-35, ZSM-48, MCM-22, MCM-36, MCM-49, zeolite Y, zeolite beta or mixtures thereof to convert the organic sulfur compounds to hydrogen sulfide. The catalyst contacts the hydrocarbon stream at a pressure of from 0.0 psig to about 400 psig, a temperature of from about 400.degree. F. to about 900.degree. F., and a weight hourly space velocity of from about 0.1 hr..sup.-1 to about 10.0 hr..sup.-1. Thereafter, the hydrogen sulfide is removed from the hydrocarbon stream.
摘要翻译： 烃流的脱硫方法，其包括有机硫化合物形式的至少100ppmw的硫和C4-烃。 烃流在不存在加氢的情况下与具有ZSM-5，ZSM-11，ZSM-22，ZSM-23，ZSM-35，ZSM-48，MCM-22结构的酸性催化剂的流化床接触 ，MCM-36，MCM-49，沸石Y，沸石β或其混合物，以将有机硫化合物转化为硫化氢。 催化剂在压力为0.0psig至约400psig，温度为约400°F至约900°F，重时空速为约0.1hr.-1至约 10.0小时-1。 此后，从烃流中除去硫化氢。
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公开(公告)号：US5491270A
公开(公告)日：1996-02-13
申请号：US278713
申请日：1994-07-22
CPC分类号： C10G29/205
摘要： A benzene-rich gasoline stream is alkylated with higher olefins in contact with a fluid bed of shape selective zeolite catalyst to produce a gasoline product stream reduced in benzene content wherein the high octane value alkylaromatics formed by benzene alkylation are of low carbon number, essentially C10-. Concurrently, a portion of olefins in the gasoline stream are converted to gasoline boiling range hydrocarbons and the sulfur content of the gasoline feedstream is lowered. Besides enhancing the octane value of the feedstream, the process results in a lower Reid vapor pressure and lower sulfur content.
摘要翻译： 富含苯的汽油流与形状选择性沸石催化剂的流化床接触的高级烯烃烷基化，以产生苯含量降低的汽油产物流，其中由苯烷基化形成的高辛烷值烷基芳烃为低碳原子，基本上为C10 - 。 同时，将汽油流中的一部分烯烃转化为汽油沸程烃，并降低汽油原料流中的硫含量。 除了增加进料流的辛烷值外，该方法还会导致较低的Reid蒸气压和较低的硫含量。
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公开(公告)号：US5482617A
公开(公告)日：1996-01-09
申请号：US286894
申请日：1994-08-08
申请人： Nick A. Collins , Mohsen N. Harandi
发明人： Nick A. Collins , Mohsen N. Harandi
摘要： A process for desulfurizing a hydrocarbon stream which includes at least 50 ppmw sulfur in the form of organic sulfur compounds, and C.sub.5 + hydrocarbons including benzene. The hydrocarbon stream is contacted in the absence of added hydrogen with a fluidized bed of an acidic catalyst having a structure of ZSM-5, ZSM-11, ZSM-22, ZSM-23, ZSM-35, ZSM-48, MCM-22, MCM-36, MCM-49, zeolite Y, zeolite beta or mixtures thereof to convert the organic sulfur compounds to hydrogen sulfide. The catalyst contacts the hydrocarbon stream at a pressure of from 0.0 psig to about 400 psig, a temperature of from about 400.degree. F. to about 900.degree. F., and a weight hourly space velocity of from about 0.1 hr..sup.-1 to about 10.0 hr..sup.-1. Thereafter, the hydrogen sulfide is removed from the hydrocarbon stream.
摘要翻译： 一种烃流的脱硫方法，其包括有机硫化合物形式的至少50ppmw的硫和包括苯的C5 +烃。 烃流在不存在加氢的情况下与具有ZSM-5，ZSM-11，ZSM-22，ZSM-23，ZSM-35，ZSM-48，MCM-22结构的酸性催化剂的流化床接触 ，MCM-36，MCM-49，沸石Y，沸石β或其混合物，以将有机硫化合物转化为硫化氢。 催化剂在压力为0.0psig至约400psig，温度为约400°F至约900°F，重时空速为约0.1hr.-1至约 10.0小时-1。 此后，从烃流中除去硫化氢。
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公开(公告)号：US5414172A
公开(公告)日：1995-05-09
申请号：US184902
申请日：1994-01-21
CPC分类号： C10G59/02
摘要： A process for upgrading low octane naphthas to produce gasoline products with low levels of benzene and aromatics while retaining a high pool octane uses a paraffinic naphtha reformer feed which is dehexanized to provide a C.sub.7 + fraction which is fed to the reformer and a C.sub.6 fraction which is fed together with the C.sub.6 fraction from the reformer effluent to a catalytic upgrading step where the low octane components from the naphtha and the benzene from the reformate are converted to a low benzene, high octane gasoline by alkylation of the benzene and other aromatics present in the reformate. The process has the advantage that benzene make in the reformer is reduced by the partial by-passing of the C.sub.6 benzene precursors around the reformer; in addition, improved benzene alkylation results from the presence of additional light olefins generated by the cracking of paraffins from the paraffinic naphtha. the reaction is preferably carried out in a turbulent fluidized bed reaction zone.
摘要翻译： 一种用于升级低辛烷值的石脑油以生产具有低含量苯和芳族化合物的汽油产品同时保留高残留辛烷值的方法使用石蜡石脑油重整器原料，该进料被脱脂以提供进料至重整器的C 7+馏分， 与来自重整器流出物的C6馏分一起进料到催化升级步骤，其中来自石脑油的低辛烷值成分和来自重整产物的苯通过苯和其它芳族化合物的烷基化转化为低苯，高辛烷值汽油 重组。 该方法的优点是在重整器周围的C6苯前体的部分旁路减少了重整器中的苯; 此外，改进的苯烷基化是由于由链烷烃石脑油裂解石蜡产生的另外的轻质烯烃的存在。 该反应优选在湍流流化床反应区中进行。
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公开(公告)号：US5401387A
公开(公告)日：1995-03-28
申请号：US101810
申请日：1993-08-03
申请人： Mohsen N. Harandi , Hartley Owen
发明人： Mohsen N. Harandi , Hartley Owen
IPC分类号： C10G51/02
CPC分类号： C10G51/026
摘要： A process for multi-stage catalytic cracking is disclosed. A first stage cracks a first feed at atmospheric to 100 psig over a shape selective zeolite to convert from 10 to 90%, by volume, to lighter products rich in iso-compounds which may be used to make ethers. A second feed, which may include 700.degree. F.+ liquid from the selective cracking reaction, is cracked in a catalytic cracking (FCC) unit. Preferably all or some of the products from the shape selective cracking reactor are fractionated in the FCC main column.
摘要翻译： 公开了一种多级催化裂化方法。 第一阶段在形状选择性沸石上将大气压下的第一次进料裂解至100psig，将体积的10至90％转化成可用于制备醚的富含异构体的较轻质产物。 来自选择性裂解反应的可能包括700°F +液体的第二进料在催化裂化（FCC）单元中裂化。 优选地，来自形状选择性裂化反应器的所有或一些产物在FCC主塔中分馏。
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公开(公告)号：US5348707A
公开(公告)日：1994-09-20
申请号：US644141
申请日：1991-01-22
申请人： Mohsen N. Harandi , Hartley Owen
发明人： Mohsen N. Harandi , Hartley Owen
摘要： A multistage catalytic reactor system for preparing ethers such as methyl t-butyl (MTBE) and t-amyl methyl ether (TAME) from iso-olefin and methanol, comprising a first reactor for contacting the iso-olefin and alcohol with a solid regenerable catalyst, such as medium-pore zeolite conversion catalyst for partial conversion of the iso-olefin and methanol to an unsymmetrical ether, operatively connected for feeding effluent from the first reactor to a second etherification reaction zone containing sensitive catalyst, such as macroreticular polystyrenesulfonic acid resin. In a preferred embodiment, the second reaction zone comprises an inlet means for receiving withdrawn intermediate product, a catalytic distillation column containing solid acid resin etherification catalyst in a plurality of fixed bed catalysis-distillation zones, and outlet means for withdrawing a final etherification product.
摘要翻译： 一种用于从异烯烃和甲醇制备醚如甲基叔丁基（MTBE）和叔戊基甲基醚（TAME）的多级催化反应器系统，包括用于使异烯烃和醇与固体可再生催化剂接触的第一反应器 ，例如用于将异烯烃和甲醇部分转化成不对称醚的中孔沸石转化催化剂，其可操作地连接用于将来自第一反应器的流出物供给到包含敏感催化剂的大孔聚苯乙烯磺酸树脂的第二醚化反应区。 在优选的实施方案中，第二反应区包括用于接收取出的中间产物的入口装置，在多个固定床催化蒸馏区中含有固体酸树脂醚化催化剂的催化蒸馏塔和用于取出最终醚化产物的出口装置。
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10.发明授权Upgrading C4 mixed hydrocarbons by transhydrogenation and isobutene etherification 失效通过转氢和异丁烯醚化来升级C4混合烃
公开(公告)号：US5176719A
公开(公告)日：1993-01-05
申请号：US614479
申请日：1990-11-16
申请人： Mohsen N. Harandi , Hartley Owen
发明人： Mohsen N. Harandi , Hartley Owen
摘要： A technique for converting olefinic light hydrocarbons rich in butenes and butanes to ether-rich liquid fuels including etherification and transhydrogenation operations. The preferred process includes: reacting a mixed C4 hydrocarbon stream containing isobutene and n-butenes with lower aliphatic alcohol in an etherification zone in contact with an acidic etherification catalyst under etherification conditions whereby an effluent stream containing C5+ tertiary-alkyl ether is produced; separating the etherification effluent stream to provide a liquid stream comprising C5+ ether and an olefinic stream comprising unreacted C4 hydrocarbons; contacting at least the n-butenes from the C.sub.4 olefinic hydrocarbon stream with isobutane under transhydrogenation conditions in the presence of transhydrogenation catalyst whereby isobutane is converted to isobutene; separating transhydrogenation effluent to recover a C4 olefinic intermediate stream containing isobutene; and passing at least a portion of the isobutene-containing intermediate stream to the etherification zone for conversion to tertiary-alkyl ether.
摘要翻译： 将富含丁烯和丁烷的烯烃轻质烃转化为富含醚的液体燃料的技术，包括醚化和转氢操作。 优选的方法包括：在醚化条件下使含有异丁烯和正丁烯的混合C 4烃流与醚化区中的酸性醚化催化剂接触的低级脂族醇反应，从而产生含有C5 +叔烷基醚的流出物流; 分离醚化流出物流以提供包含C5 +醚和包含未反应的C 4烃的烯烃流的液体流; 在转氢催化剂的存在下，在转氢氢化条件下，使来自C4烯烃的至少一种烃与异丁烷接触，由此将异丁烷转化为异丁烯; 分离反氢化流出液以回收含有异丁烯的C 4烯烃中间体流; 并将至少一部分含异丁烯的中间物流送至醚化区转化为叔烷基醚。
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