公开(公告)号：US6143915A

公开(公告)日：2000-11-07

申请号：US198300

申请日：1998-11-23

申请人： Lubo Zhou ,  W. Patrick Dennler ,  Anil R. Oroskar ,  Bipin V. Vora ,  Hayim Abrevaya ,  Laurence O. Stine

发明人： Lubo Zhou ,  W. Patrick Dennler ,  Anil R. Oroskar ,  Bipin V. Vora ,  Hayim Abrevaya ,  Laurence O. Stine

IPC分类号： B01J8/00 ,  B01J8/24 ,  B01J8/26 ,  B01J19/26 ,  C07C253/26 ,  C07C255/08 ,  C07C253/00

CPC分类号： B01J8/0055 ,  B01J19/26 ,  B01J8/1827 ,  B01J8/26 ,  C07C253/26 ,  B01J2208/00132 ,  B01J2208/00292 ,  B01J2208/00548 ,  Y02P20/52

摘要： A hybrid reactor arrangement provides a reactive design that achieves higher acrylonitrile yield and lower catalyst circulating rate. The hybrid reactor design first passes a mixture of reactants and catalyst through a circulating bubbling bed reaction section. Heat exchange coils or other cooling medium in the bubbling bed reactor section maintain temperature in a range that will maximize the selectivity of reactants to the acrylonitrile product. The bubbling bed reactor section provides the initial conversion of the reactant. A circulating fluidized bed reaction zone finishes the conversion of reactants to a high yield under conditions that reduce the occurrence of secondary reactions that could otherwise produce unwanted by-products. The circulating fluidized bed reactor section maintains nearly plug flow conditions that allow continued conversion of unreacted feed components through primary reactions while limiting the time for secondary reactions to continue and diminish the final yield of products. Selectivity and conversion may also be improved by sequential addition of oxygen into the CFB reaction section. The sequential addition of oxygen may occur by the direct injection of an oxygen-containing gas or by the delivery of re-oxidized catalyst particles that are fully recharged with the lattice oxygen necessary for the reaction. Through this method the hybrid reactor provides the typical 5% improvement of higher acrylonitrile product yield from CFB-type reaction zones while reducing the required catalyst circulation by a factor of 10 or more.

公开(公告)号：US5847252A

公开(公告)日：1998-12-08

申请号：US573089

申请日：1995-12-15

申请人： Laurence O. Stine ,  Bipin V. Vora ,  Harold U. Hammershaimb

发明人： Laurence O. Stine ,  Bipin V. Vora ,  Harold U. Hammershaimb

IPC分类号： C10G69/12 ,  C07C2/08 ,  C07C5/32

CPC分类号： C10G69/126 ,  Y02P20/582

摘要： A process for the production motor fuel components from isoparaffins by dehydrogenation, oligomerization and saturation uses a combination of low severity dehydrogenation, first and second feed input locations and a primary separation column that receives feed and effluent components to deliver a dehydrogenation zone feed and a motor fuel products. A separation column receives the an isobutane input stream and a product containing effluent stream to distill a dehydrogenation zone input steam. The dehydrogenation zone operates at low severity conditions to produce the effluent stream that compliments the operation of an oligomerization zone by delivering an effluent stream that is higher in pressure and contains inert paraffinic diluent materials. The oligomerization effluent passes to a saturation reaction zone that provides a saturated effluent stream. The saturation zone effluent is divided to provide quench to both the oligomerization reaction zone and the saturation zone and saturated motor fuel components to the separation column.

摘要翻译： 通过脱氢，低聚和饱和生产来自异构烷烃的马达燃料组分的方法使用低严重性脱氢，第一和第二进料输入位置的组合以及接收进料和流出物组分以输送脱氢区进料和马达的初级分离塔 燃料产品。 分离塔接收异丁烷输入流和含有流出物流的产物以蒸馏脱氢区输入蒸汽。 脱氢区在低苛刻度条件下操作以产生通过输送压力较高并含有惰性链烷烃稀释剂材料的流出物流来补充低聚区的操作的流出物流。 低聚流出物进入饱和反应区，提供饱和流出物流。 饱和区流出物被分开，以将低聚反应区和饱和区以及饱和运动燃料组分两者都冷却至分离塔。

公开(公告)号：US5714662A

公开(公告)日：1998-02-03

申请号：US513242

申请日：1995-08-10

申请人： Bipin V. Vora ,  Terry L. Marker ,  Henning R. Nilsen

发明人： Bipin V. Vora ,  Terry L. Marker ,  Henning R. Nilsen

IPC分类号： C10C1/02 ,  C07C1/20 ,  C07C11/02 ,  C07C41/05 ,  C07C41/06 ,  C08F210/16 ,  C07C1/24

CPC分类号： C07C1/20 ,  C07C11/02 ,  C07C41/05 ,  C07C41/06 ,  C08F210/16 ,  C07C2529/85 ,  Y02P20/52 ,  Y02P30/42

摘要： A process is disclosed for the production of light olefins from a hydrocarbon gas stream by a combination of reforming, oxygenate production, and oxygenate conversion wherein a crude methanol stream--produced in the production of oxygenates and comprising methanol, light ends, and heavier alcohols--is passed directly to the oxygenate conversion zone for the production of light olefins. Furthermore, the combination provides the synergy for increased catalyst life and reduced water treatment costs by recycling by-product water produced in the oxygenate conversion zone to provide water to the syngas production zone. The advantage of this integration is the elimination of costly methanol separation and purification steps which result in the overall reduction in the costs of producing the light olefins. Other advantages include the reduction in catalyst cost in the oxygenate production zone by the reduction in the catalyst selectivity by the extension of catalyst life in the oxygenate production zone. In addition, a portion of the by-product water can be combined with a propylene stream to provide a high octane blending component for gasoline. The propylene and butylene fractions produced by the above integrated scheme are further converted to high octane ether and other high value products.

摘要翻译： 公开了一种通过重整，含氧化合物生产和含氧化合物转化的组合从烃类气体流中生产轻质烯烃的方法，其中在生产含氧化合物并且包含甲醇，轻馏分和较重的醇 - 直接通入含氧化合物转化区用于生产轻质烯烃。 此外，该组合通过再循环在含氧化合物转化区产生的副产物水以向合成气生产区提供水，提供了增加催化剂寿命和降低水处理成本的协同作用。 这种整合的优点是消除了昂贵的甲醇分离和纯化步骤，导致轻质烯烃的生产成本的总体降低。 其他优点包括通过在含氧化合物生产区延长催化剂寿命，催化剂选择性降低，从而降低含氧化合物生产区的催化剂成本。 此外，一部分副产物水可以与丙烯流混合以提供用于汽油的高辛烷值混合组分。 由上述集成方案制备的丙烯和丁烯馏分进一步转化成高辛烷值和其它高价值产物。

公开(公告)号：US5210327A

公开(公告)日：1993-05-11

申请号：US883636

申请日：1992-05-15

申请人： Charles P. Luebke ,  Bipin V. Vora ,  David A. Wegerer ,  Joseph E. Zimmermann ,  Kevin C. Buck

发明人： Charles P. Luebke ,  Bipin V. Vora ,  David A. Wegerer ,  Joseph E. Zimmermann ,  Kevin C. Buck

IPC分类号： B01D3/00 ,  C07C41/06 ,  C07C41/42

CPC分类号： B01D3/009 ,  C07C41/06 ,  C07C41/42 ,  Y02P20/127

摘要： A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses a separation zone that receives an effluent stream from the etherification reaction zone and separates it into a high boiling stream, a low boiling stream and an intermediate boiling stream in order to reduce the mass flow of reactants through the isomerization and etherification reaction zones. The separation zone normally has an arrangement of a distillation column. The distillation column can provide a distillation function only, or can also provide a reactive distillation zone. The intermediate boiling stream typically leaves the column as a sidecut which in the case of reactive distillation is taken from the point above a bed of catalyst within the column. Taking the sidecut stream substantially eliminates the circulation of isoalkane hydrocarbons through the etherification and isomerization zone and maintains normal alkanes at an acceptable equilibrium level.

摘要翻译： 醚化方法和将线性烯烃异构化成异烯烃的方法的组合使用分离区，其接收来自醚化反应区的流出物流，并将其分离成高沸点流，低沸点流和中间沸腾流 以减少反应物通过异构化和醚化反应区的质量流动。 分离区通常具有蒸馏塔的排列。 蒸馏塔只能提供蒸馏功能，也可以提供反应蒸馏区。 中间沸腾流通常作为旁路离开塔，在反应蒸馏的情况下取自塔内催化剂床上方的点。 采取旁路基本上消除了通过醚化和异构化区域的异烷烃的循环，并将正常烷烃保持在可接受的平衡水平。

公开(公告)号：US5012021A

公开(公告)日：1991-04-30

申请号：US584214

申请日：1990-09-18

申请人： Bipin V. Vora ,  Paul R. Cottrell

发明人： Bipin V. Vora ,  Paul R. Cottrell

IPC分类号： C07C15/107

CPC分类号： C07C15/107 ,  Y02P20/582

摘要： An improved process for the production of alkylaromatic hydrocarbons is disclosed. Paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing stream, which is later charged to an alkylation zone for reaction with an aromatic hydrocarbon in the presence of a solid alkylation catalyst. The olefin-containing stream is first passed through a selective hydrogenation zone in which diolefins are converted to monoolefins by contact with a selective catalyst. This increases the yield and the quality of the product alkylate by greatly reducing the production of biphenyl compounds and oligomers in the alkylation zone. Process efficiency is improved by passing unconverted paraffinic and monoolefinic hydrocarbons from the alkylation zone through another hydrogenation zone for the saturation of monoolefinic hydrocarbons and recycling the saturated stream to the dehydrogenation zone. The use of a solid alkylation catalyst can also allow the selective hydrogenation zone to be located downstream of the stripper for the dehydrogenation zone so that the effluent from the selective hydrogenation zone discharges directly into the alkylation zone.

摘要翻译： 公开了一种生产烷基芳族烃的改进方法。 将烷烃烃脱氢以产生含烯烃的物流，随后将其装入烷基化区以在固体烷基化催化剂存在下与芳烃反应。 首先将含烯烃的物流通过选择性氢化区，其中通过与选择性催化剂接触将二烯烃转化为单烯烃。 这通过大大降低烷基化区中联苯化合物和低聚物的产生而提高了烷基化产物的产率和质量。 通过使来自烷基化区的未转化的链烷烃和单烯烃通过另一氢化区用于饱和单烯烃并且将饱和流再循环到脱氢区来提高工艺效率。 使用固体烷基化催化剂还可以使选择氢化区位于脱氢区的汽提塔的下游，使得来自选择氢化区的流出物直接排放到烷基化区。

公开(公告)号：US4869808A

公开(公告)日：1989-09-26

申请号：US176574

申请日：1988-04-01

申请人： Bipin V. Vora ,  Norman H. Scott

发明人： Bipin V. Vora ,  Norman H. Scott

IPC分类号： B01J8/02 ,  B01J8/12 ,  C07C5/32 ,  C10G35/12

CPC分类号： C10G35/12 ,  B01J8/0214 ,  B01J8/12 ,  C07C5/325 ,  Y10S208/01

摘要： A continuous process for hydrocarbon conversion wherein a hydrocarbon charge stock is catlytically converted in the presence of hydrogen at hydrocarbon conversion conditions including a first inlet temperature, a first hydrogen to hydrocarbon mole ratio and a first mass flow rate of hydrocarbon into a hydrocarbon product stream in a high space velocity moving bed radial flow reactor containing catalyst wherein at least a portion of the catalyst is pinned and thereby immobilized during high space velocity conversion which process comprises: (a) reducing the first inlet temperature of the reactor by about 10.degree. F. (5.5.degree. C.) to about 100.degree. F. (55.5.degree. C.) to a second inlet temperature thereby lowering the rate of the hydrocarbon conversion; (b) reducing the first hydrogen to hydrocarbon mole ratio to a second hydrogen to hydrocarbon mole ratio which is from about 10% to about 60% of the first hydrogen to hydrocarbon mole ratio and sufficient to unpin the catalyst from the reactor thereby ensuring uniform gravitational catalyst flow through the reactor while maintaining the first mass flow rate of hydrocarbon; (c) introducing a quantity of fresh catalyst into an upper portion of the reactor while removing a similar quantity of spent catalyst from a lower portion of the reactor; (d) increasing the second hydrogen to hydrocarbon mole ratio to essentially the first hydrogen to hydrocarbon mole ratio; and (e) increasing the second inlet temperature to essentially restore the hydrocarbon conversion.

摘要翻译： 一种用于烃转化的连续方法，其中在含烃转化条件下，在氢气存在下，将烃电荷原料进行电解转化，所述烃转化条件包括第一入口温度，第一氢烃摩尔比和第一质量流量的烃转化为烃产物流 含有催化剂的高空速移动床径向流动反应器，其中至少一部分催化剂被钉扎并由此在高空间速度转换期间固定，该方法包括：（a）将反应器的第一入口温度降低约10°F （5.5℃）至约100°F（55.5℃）至第二入口温度，从而降低烃转化率; （b）将第一氢烃与烃的摩尔比降低至第二氢烃比至约为烃的摩尔比的10％至约60％，并足以使催化剂从反应器中除去，从而确保均匀的重力 催化剂流过反应器，同时保持烃的第一质量流量; （c）将一定数量的新鲜催化剂引入反应器的上部，同时从反应器的下部除去相似量的废催化剂; （d）将第二氢气与烃的摩尔比增加至基本上第一氢烃摩尔比; 和（e）增加第二入口温度以基本上恢复烃转化率。

公开(公告)号：US4523045A

公开(公告)日：1985-06-11

申请号：US637234

申请日：1984-08-02

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C2/70 ,  C07C5/05 ,  C07C5/333 ,  C07C11/02 ,  C07C15/107 ,  C07C5/00

CPC分类号： C07C15/107 ,  C07C11/02 ,  C07C2/70 ,  C07C5/05 ,  C07C5/3337 ,  C07C2523/44 ,  C07C2527/043 ,  C07C2527/1206

摘要： A process is disclosed for the production of linear olefinic hydrocarbons. A feed stream of paraffins is fed to a catalytic dehydrogenation reaction zone. Liquid phase hydrocarbons withdrawn from the dehydrogenation reaction zone are passed through a diolefin selective hydrogenation zone. The effluent of the hydrogenation zone is stripped of light ends and passed into an olefin separation zone, which preferably employs a selective adsorbent. The paraffinic effluent of the separation zone is recycled to the dehydrogenation zone. The paraffinic recycle stream contains some monoolefins, but is essentially free of diolefins. Dehydrogenation catalyst life is lengthened by elimination of diolefins in total charge to dehydrogenation zone. Product quality and yield is improved.

摘要翻译： 公开了用于生产线性烯烃的方法。 将进料物流进料到催化脱氢反应区。 从脱氢反应区取出的液相烃通过二烯烃选择氢化区。 将氢化区的流出物汽提出轻馏分，并进入烯烃分离区，优选使用选择性吸附剂。 分离区的石蜡流出物再循环到脱氢区。 石蜡循环物流含有一些单烯烃，但基本上不含二烯烃。 脱氢催化剂寿命通过在脱氢区的总电荷中消除二烯烃而延长。 产品质量和产量提高。

公开(公告)号：US4520214A

公开(公告)日：1985-05-28

申请号：US596867

申请日：1984-04-04

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C11/02 ,  C07C5/327 ,  C07C5/00

CPC分类号： C07C11/02 ,  C07C2523/44 ,  C07C2527/043 ,  C07C2527/1206

摘要： An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing vapor stream, which is partially condensed to produce a liquid phase process stream which contains by-product diolefins along with the intended product monoolefins. The liquid phase process stream and added hydrogen are passed through a selective hydrogenation zone in which diolefins are catalytically converted to monoolefins. This increases the quality of the product monoolefin stream. The selective hydrogenation zone is located between the vapor-liquid separator and stripper column of the dehydrogenation zone.

摘要翻译： 公开了一种用于链烷烃的催化脱氢的改进方法。 进料链烷烃被脱氢以产生含烯烃的蒸汽流，其部分冷凝以产生含有副产物二烯烃以及预期产物单烯烃的液相工艺流。 将液相工艺流和加入的氢气通过选择性氢化区，其中二烯烃被催化转化为单烯烃。 这增加了产品单烯烃流的质量。 选择性加氢区位于脱氢区的汽液分离器和汽提塔之间。

公开(公告)号：US4447653A

公开(公告)日：1984-05-08

申请号：US395413

申请日：1982-07-06

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C41/06 ,  C07C41/00

CPC分类号： C07C41/06 ,  Y02P20/125

摘要： An improved method is disclosed for regenerating adsorbents used in an integrated process for the production of ethers such as methyl tertiary butyl ether by the reaction of an alcohol with an isoolefin. The sorbents are used to remove such compounds as the product ether and the feed alcohol from a hydrocarbon recycle stream withdrawn from the etherification zone. The regeneration procedure includes contacting the sorbent with a portion of the treated hydrocarbon stream. The resultant contaminated hydrocarbon stream is passed into a stripping column used to remove light ends from the effluent of a dehydrogenation zone in which the isoolefin fed to the etherification zone is produced. The hydrocarbonaceous compounds collected on the sorbent are thus recycled rather than being destroyed or lost in low purity effluent streams. The contaminated hydrocarbon stream may also be passed directly into the etherification zone.

摘要翻译： 公开了一种用于再生吸附剂的改进方法，所述吸附剂用于通过醇与异烯烃的反应来生产醚如甲基叔丁基醚的一体化方法。 吸附剂用于从醚化区域中排出的烃循环物流中除去产物醚和进料醇等化合物。 再生方法包括使吸附剂与处理的烃流的一部分接触。 所得到的被污染的烃流被送入汽提塔，用于从其中产生进入醚化区的异烯烃的脱氢区的流出物除去轻馏分。 因此，在吸附剂上收集的烃类化合物被循环使用，而不是在低纯度流出物流中被破坏或丢失。 被污染的烃流也可以直接通入醚化区。

公开(公告)号：US4393259A

公开(公告)日：1983-07-12

申请号：US290031

申请日：1981-08-05

申请人： Dennis J. Ward ,  Bipin V. Vora

发明人： Dennis J. Ward ,  Bipin V. Vora

IPC分类号： C07C11/02 ,  C07C11/107 ,  C10G49/22 ,  C10L1/06 ,  C07C2/08

CPC分类号： C10L1/06 ,  C07C11/02 ,  C07C11/107 ,  C10G2400/02 ,  Y02P20/582

摘要： A multi-step hydrocarbon conversion process for producing gasoline from propane or butane is disclosed. The feed hydrocarbon is passed into a dehydrogenation zone and the entire dehydrogenation zone effluent including hydrogen and light by-products is then passed into a catalytic condensation zone wherein the resulting olefins are converted into dimers and trimers. The condensation zone effluent stream is passed into a separation zone in which the dimers and trimers are concentrated into a product stream, with unconverted feed hydrocarbon and hydrogen being recycled to the dehydrogenation zone.

摘要翻译： 公开了一种用于从丙烷或丁烷生产汽油的多步烃转化方法。 进料碳氢化合物进入脱氢区，然后将包含氢气和轻质副产物的整个脱氢区流出物进入催化冷凝区，其中所得烯烃转化成二聚体和三聚体。 冷凝区流出物流进入分离区，其中二聚体和三聚体浓缩成产物流，未转化的进料烃和氢气被再循环到脱氢区。