-
公开(公告)号：US5234576A
公开(公告)日：1993-08-10
申请号：US738371
申请日：1991-07-31
申请人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
发明人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
IPC分类号： C10G35/095 , C10G55/06 , C10G57/00
CPC分类号： C10G57/00
摘要： The present invention discloses a process for increasing the selectivity of the production of isobutylene in an admixture of C.sub.4 olefins, in a process comprising producing isobutylene, with high selectivity, comprising catalytically producing a first composition comprising at least one C.sub.4 olefin selected from the group consisting of 1-butene, cis-2-butene, trans-2-butene, admixtures thereof and 2-methylpropene admixed with at least one of said 1-butene, cis-2-butene, and trans-2-butene, by passing paraffin containing feed, which feed is free of aromatics, and in which the paraffin contains 5 to 20 carbon atoms, in the vapor phase, over a first catalyst composition, wherein the catalyst comprises ZSM-5 or ZSM-12, and increasing the isobutylene content of the first composition by producing a second composition, by contacting the first composition with a second catalyst composition comprising ZSM-23 under conditions in which the second composition is in the vapor phase, while maintaining the total C.sub.4 olefin content of the second composition substantially identical to the total C.sub.4 olefin content of the first composition.
摘要翻译： 本发明公开了一种增加在C4烯烃混合物中制备异丁烯的选择性的方法，该方法包括以高选择性制备异丁烯，其包括催化产生第一组合物，该组合物包含至少一种选自以下的C 4烯烃： 的1-丁烯，顺式-2-丁烯，反式-2-丁烯，其混合物和与所述1-丁烯，顺式-2-丁烯和反式-2-丁烯中的至少一种混合的2-甲基丙烯，通过石蜡 其中该进料不含芳族化合物，并且其中石蜡在汽相中含有5至20个碳原子，超过第一催化剂组合物，其中催化剂包含ZSM-5或ZSM-12，并且增加异丁烯含量 通过制备第二组合物，通过使第一组合物与包含ZSM-23的第二催化剂组合物在第二组合物处于气相的条件下接触，同时保持t 他的第二组合物的总C 4烯烃含量基本上与第一组合物的总C 4烯烃含量相同。
-
公开(公告)号：US5132467A
公开(公告)日：1992-07-21
申请号：US665052
申请日：1991-03-06
申请人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
发明人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
IPC分类号： C07C41/06
CPC分类号： C07C41/06
摘要： A process is disclosed for the production of tertiary alkyl ethers wherein linear olefins, particularly n-butene, are isomerized in the vapor phase at high temperature in contact with shape selective metallosilicate catalyst to produce iso-olefin vapor, particularly isobutene. The vaporous iso-butene is then etherified with alkanol to provide alkyl tert-alkyl ether such as MTBE. Unreacted iso-olefin and/or linear olefin and product ether are separated by fractionation and unreacted olefin components recycled. Fractionation of the vapor phase etherification product is carried out by using the fresh liquid linear olefin feedstream as a reflux stream to the fractionator.
摘要翻译： 公开了用于生产叔烷基醚的方法，其中线性烯烃，特别是正丁烯在气相中在与形状选择性金属硅酸盐催化剂接触的高温下异构化以产生异烯烃蒸气，特别是异丁烯。 然后将气态异丁烯与烷醇醚化，得到烷基叔烷基醚如MTBE。 通过分级分离未反应的异烯烃和/或直链烯烃和产物醚，并回收未反应的烯烃组分。 通过使用新鲜液体线性烯烃进料流作为回流流向分馏器进行气相醚化产物的分馏。
-
公开(公告)号：US5144086A
公开(公告)日：1992-09-01
申请号：US695843
申请日：1991-05-06
CPC分类号： C07C41/09 , C07C1/24 , C07C2529/70
摘要： A process for synthesizing di-isopropyl ether (DIPE) by etherification of isopropanol. A multi-stage process can employ propene in mixture with other feedstock materials, such as propane from refinery gas, in a primary hydration stage to produce isopropanol. The isopropanol is enriched between stages to remove water. In the second reaction stage the isopropanol is converted catalytically with large pore acidic zeolite to yield DIPE, which can be separated to recover pure propene.
摘要翻译： 通过异丙醇醚化合成二异丙醚（DIPE）的方法。 多级方法可以在初级水合阶段中使用丙烯与其它原料物质混合，例如来自精炼厂气体的丙烷，以产生异丙醇。 阶段之间富含异丙醇以除去水分。 在第二反应阶段，异丙醇用大孔酸性沸石催化转化，得到DIPE，可以分离回收纯丙烯。
-
公开(公告)号：US5013329A
公开(公告)日：1991-05-07
申请号：US331201
申请日：1989-03-31
摘要： A process is disclosed for converting a light hydrocarbon feedstock that contains a mixture of linear and branched olefins to ether-rich high octane gasoline streams that include tertiary alkyl and isoalkyl ethers such as MTBE, TAME, methyl isopropyl ether (MIPE), and methyl sec-butylether (MSBE). The conversion is achieved by utilizing the differing reactivity of tertiary olefins under selected conditions compared to linear olefins in the catalyzed etherification processes. The discovery has been made that unreacted olefins from the etherification reactions can be converted to gasoline boiling range hydrocarbons by contacting them with zeolite catalyst at elevated temperature. Further, it has been discovered that unreacted paraffins in the integrated process can be dehydrogenated to produce C.sub.3 -C.sub.4 olefins which can be recycled to the etherification process.
摘要翻译： 公开了一种将包含直链和支链烯烃的混合物的轻质烃原料转化成富含高级辛烷值汽油的方法，其中包括叔烷基和异烷基醚如MTBE，TAME，甲基异丙醚（MIPE）和甲基sec 丁基醚（MSBE）。 通过在催化醚化过程中与线性烯烃相比，在选择的条件下利用三级烯烃的不同反应性来实现转化。 已经发现，来自醚化反应的未反应的烯烃可以通过在升高的温度下与沸石催化剂接触而转化为汽油沸程烃。 此外，已经发现，一体化方法中的未反应的链烷烃可以脱氢生产可以再循环到醚化过程的C 3 -C 4烯烃。
-
公开(公告)号：US5243090A
公开(公告)日：1993-09-07
申请号：US914973
申请日：1992-07-16
申请人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
发明人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
IPC分类号： C07C41/06
CPC分类号： C07C41/06
摘要： A process is disclosed for the production of tertiary alkyl ethers wherein linear olefins, particularly n-butene, are isomerized in the vapor phase at high temperature in contact with shape selective metallosilicate catalyst to produce iso-olefin vapor, particularly isobutene. The vaporous iso-butene is then etherified with alkanol to provide alkyl tert-alkyl ether such as MTBE. Unreacted iso-olefin and/or linear olefin and product ether are separated by fractionation and unreacted olefin components recycled. Fractionation of the vapor phase etherification product is carried out by using the fresh liquid linear olefin feedstream as a reflux stream to the fractionator.
摘要翻译： 公开了用于生产叔烷基醚的方法，其中线性烯烃，特别是正丁烯在气相中在与形状选择性金属硅酸盐催化剂接触的高温下异构化以产生异烯烃蒸气，特别是异丁烯。 然后将气态异丁烯与烷醇醚化，得到烷基叔烷基醚如MTBE。 通过分级分离未反应的异烯烃和/或直链烯烃和产物醚，并回收未反应的烯烃组分。 通过使用新鲜液体线性烯烃进料流作为回流流向分馏器进行气相醚化产物的分馏。
-
6.发明授权Catalytic cracking process utilizing an iso-olefin enhancer catalyst additive 失效使用异烯烃增强剂催化剂添加剂的催化裂化方法
公开(公告)号：US5234575A
公开(公告)日：1993-08-10
申请号：US738370
申请日：1991-07-31
申请人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
发明人： Werner O. Haag , Mohsen N. Harandi , Hartley Owen
CPC分类号： C10G11/18 , C10G51/026
摘要： The invention relates to improving the selectivity of the production of isobutylene or 2-methylpropene during fluid catalytic cracking of heavy C.sub.9 + aromatic containing feeds including resids and/or gas oils by employing two catalyst components, one of which comprises ZSM-23, ZSM-22, ZSM-35 or similarly structured catalysts and the other catalyst component being effective under the fluid catalytic cracking conditions to produce high octane gasoline.
摘要翻译： 本发明涉及通过使用两种催化剂组分，其中一种包括ZSM-23，ZSM-22（其中一种包括ZSM-23，ZSM-22），改进了含C 9 +芳族化合物进料的重C9 +芳族化合物进料的生产异丁烯或2-甲基丙烯的选择性 ，ZSM-35或类似结构的催化剂，另一种催化剂组分在流化催化裂化条件下是有效的，以产生高辛烷值汽油。
-
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。
-
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。
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
268 条记录 (耗时 0.022 秒)
