公开(公告)号：US6025533A

公开(公告)日：2000-02-15

申请号：US58607

申请日：1998-04-10

申请人： Bipin V. Vora ,  Harold U. Hammershaimb

发明人： Bipin V. Vora ,  Harold U. Hammershaimb

IPC分类号： C07C2/08 ,  C07C11/02 ,  C10G69/12 ,  C10L1/06

CPC分类号： C10G69/126 ,  C07C11/02 ,  C07C2/08 ,  C10L1/06 ,  C07C2521/04 ,  C07C2529/08 ,  C07C2529/70 ,  C07C2531/10 ,  Y02P20/127 ,  Y02P20/132

摘要： This process for the production of heavy oligomers by a combination of dehydrogenation and oligomerization uses a bed of saturation catalyst in a debutanizer to simplify the saturation and recycle of C.sub.4 hydrocarbons to the dehydrogenation zone. The catalytic distillation zone is located in the top of the debutanizer column and may offer further efficiency improvements to the process when used in series with a bed of alkylation or oligomerization catalyst in the distillation zone. The bed of alkylation or oligomerization catalyst reduces the quantity of C.sub.4 hydrocarbons recycled to the dehydrogenation zone by oligomerizing unconverted C.sub.4 olefins in the distillation column. Conversion of C.sub.4 olefins in the distillation column facilitates the operation of the oligomerization zone at lower conversion conditions that favor production of high octane products. The catalytic distillation arrangement is particularly beneficial in a combination for motor fuel from isoparaffins by dehydrogenation, oligomerization and saturation where the mass flow through the saturation zone is also reduced by alkylation and saturation in the distillation column.

摘要翻译： 通过脱氢和低聚组合生产重低聚物的该方法在脱丁烷塔中使用饱和催化剂床，以简化C4烃到脱氢区的饱和和再循环。 催化蒸馏区位于脱丁烷塔的顶部，并且当与蒸馏区中的烷基化或低聚催化剂床串联使用时可以进一步提高该方法的效率。 烷基化或低聚催化剂床通过在蒸馏塔中低聚未转化的C 4烯烃来减少再循环到脱氢区的C4烃的量。 蒸馏塔中C4烯烃的转化促进了在有利于生产高辛烷值产物的较低转化条件下低聚区的操作。 催化蒸馏装置特别有利于通过脱氢，低聚和饱和的来自异链烷烃的运动燃料的组合，其中通过饱和区的质量流也通过蒸馏塔中的烷基化和饱和而降低。

公开(公告)号：US5300715A

公开(公告)日：1994-04-05

申请号：US958842

申请日：1992-10-09

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C7/13 ,  C07C11/02 ,  C07C5/00

CPC分类号： C07C11/02 ,  C07C7/13

摘要： An improved process for the production of linear olefinic hydrocarbons by paraffin dehydrogenation and adsorptive separation is disclosed. Aromatic by-products normally formed in paraffin dehydrogenation are selectively removed using at least one aromatics removal zone. Removal of these aromatic by-products significantly increases the purity of the olefinic hydrocarbon product and increases the capacity of the adsorptive separation zone. The improved process is believed to increase the life of the adsorbent in the adsorptive separation zone and the life of the catalyst in the dehydrogenation zone.

摘要翻译： 公开了通过石蜡脱氢和吸附分离制备线性烯烃的改进方法。 通常使用至少一个芳族化合物去除区选择性地除去在链烷烃脱氢中通常形成的芳族副产物。 除去这些芳族副产物显着提高了烯烃产物的纯度，并增加了吸附分离区的能力。 认为改进的方法可以增加吸附分离区中吸附剂的寿命和脱氢区催化剂的使用寿命。

公开(公告)号：US5057206A

公开(公告)日：1991-10-15

申请号：US236437

申请日：1988-08-25

申请人： Dusan J. Engel ,  Bipin V. Vora

发明人： Dusan J. Engel ,  Bipin V. Vora

IPC分类号： B01J23/40 ,  C10G45/52 ,  C10G69/12

CPC分类号： C10G45/52 ,  C10G2400/14

摘要： A white oil product is produced by hydrogenating a hydrocarbon stream produced from an aromatic alkylation process. The hydrogenation occurs at hydrogenation conditions in the presence of a catalyst comprising a platinum group metal component surface impregnated on a refractory oxide catalyst support. The platinum group metal component is surface impregnated such that the platinum group metal is essentially all located with a 100 micron layer of the surface of the catalyst support.

公开(公告)号：US5015783A

公开(公告)日：1991-05-14

申请号：US445255

申请日：1989-12-04

申请人： Bipin V. Vora ,  Peter R. Pujado ,  Charles P. Luebke

发明人： Bipin V. Vora ,  Peter R. Pujado ,  Charles P. Luebke

IPC分类号： C07C41/06

CPC分类号： C07C41/06 ,  C07C41/09 ,  Y02P20/582

摘要： Processes for the production of ethers from alcohols and isoolefins are disclosed. Isoolefins having four to five carbon atoms per molecule are combined with a monohydroxy alcohol having from one to five carbon atoms per molecule and with a recycle stream comprising alcohol and water to form an etherification zone feed stream which is passed through an etherification zone to produce the desired ether. The effluent from the etherification zone is separated into an ether product and an aqueous product containing unreacted alcohol which is recycled to provide a portion of the etherification zone feed stream. Distillation can be employed to separate the effluent from the etherification zone into a bottoms product stream, comprising the ether, a distillate product comprising other hydrocarbons and the above-mentioned recycle stream. When producing ethyl-tertiary-butyl ether (ETBE), azeotropic grade ethanol, i.e., about 5 vol. % water, is preferably utilized. The utilization of the alcohol/water recycle stream can obviate the need for additional alcohol recovery from the distillate product.

摘要翻译： 公开了从醇和异烯烃生产醚的方法。 每分子具有4至5个碳原子的异烯烃与每分子具有1至5个碳原子的单羟基醇和包含醇和水的再循环料流组合以形成醚化区进料流，其通过醚化区以产生 所需的醚。 来自醚化区的流出物被分离成醚产物和含有未反应的醇的含水产物，其被再循环以提供一部分醚化区进料流。 可以使用蒸馏将来自醚化区的流出物分离成塔底产物流，其包含醚，包含其它烃的馏出物产物和上述循环物流。 当生产乙基叔丁基醚（ETBE）时，共沸级乙醇即约5体积％ ％的水。 酒精/水循环流的利用可以避免从馏出物产品中再次进行酒精回收的需要。

公开(公告)号：US4906788A

公开(公告)日：1990-03-06

申请号：US262928

申请日：1988-10-26

申请人： Norman H. Scott ,  Bipin V. Vora

发明人： Norman H. Scott ,  Bipin V. Vora

IPC分类号： C07C41/06 ,  C07C41/42

CPC分类号： C07C41/42 ,  C07C41/06

摘要： A combined process for the dehydrogenation of C.sub.4 -C.sub.5 paraffins in a first zone and the etherification of olefins in a second zone improves efficiency by directly charging all but the lightest components of the dehydrogenation zone effluent to the etherification zone. This process is particularly suited for the production of gasoline boiling range ethers where an isoparaffin is dehydrogenated in a first zone to produce isoolefins. After separation of hydrogen and methane, the dehydrogenation zone effluent is charged along with methanol to an etherification zone for the production of MTBE. The etherification zone effluent is separated into at least three component streams comprising light ends, isoparaffins, and the ether product. Isoparaffins, separated from the etherification zone effluent, are recycled and combined with the feed to dehydrogenation zone. The particular arrangement of this invention uses an etherification zone for the production of MTBE and a single fractionation column to yield an overhead stream of light ends, a sidecut stream of recycle isoparaffins and methanol, and a bottoms product stream of MTBE.

摘要翻译： 在第一区域中C4-C5链烷烃的脱氢和第二区域中的烯烃的醚化的组合方法通过将脱氢区流出物中的除最轻组分之外的所有成分直接加入到醚化区来提高效率。 该方法特别适用于生产汽油沸点范围的醚，其中异链烷烃在第一区被脱氢以产生异烯烃。 在分离氢气和甲烷之后，将脱氢区流出物与甲醇一起装入用于生产MTBE的醚化区。 将醚化区流出物分离成至少三种包含轻馏分，异链烷烃和醚产物的组分流。 与醚化区流出物分离的异链烷烃被再循环并与进料脱氢区组合。 本发明的具体布置使用醚化区用于生产MTBE和单分馏塔以产生轻馏分塔顶流，再循环异链烷烃和甲醇的一批流，以及MTBE的塔底产物流。

公开(公告)号：US4754078A

公开(公告)日：1988-06-28

申请号：US020806

申请日：1987-03-02

申请人： Bipin V. Vora ,  Peter R. Pujado ,  Richard E. Conser

发明人： Bipin V. Vora ,  Peter R. Pujado ,  Richard E. Conser

IPC分类号： C07C5/27 ,  C07C41/06

CPC分类号： C07C41/06 ,  C07C5/2791

摘要： A multistep hydrocarbon conversion process for the production of ethers including methyl tertiary butyl ether (MTBE) from light paraffins and alcohols is disclosed. A mixture of C.sub.4 isoparaffins, normal paraffins, an etherification recycle and butane isomerization effluent enter a deisobutanizer column. Normal paraffins withdrawn from the fractionator are isomerized and returned to the fractionator, and isoparaffins are withdrawn from the fractionator and dehyrogenated. The resulting olefins enter an etherification zone for reaction of isobutene with a C.sub.2 -C.sub.5 alcohol. Unreacted paraffins and olefins comprise the etherification effluent entering the deisobutanizer. Normal butanes and olefins are withdrawn as a sidecut from the deisobutanizer. Hydrogenation of the sidecut saturates any olefins contained therein which would interfere with the isomerization of normal butanes. The saturated sidecut passes to an isomerization zone and a mixture of isobutane and normal butane is recycled to the deisobutanizer. In a highly perferred embodiment, spent catalyst from the isomerization zone fulfills the catalyst requirement of the dehydrogenation zone.

摘要翻译： 公开了一种用于从轻链烷烃和醇生产包括甲基叔丁基醚（MTBE）的醚的多步烃转化方法。 C4异构烷烃，正链烷烃，醚化再循环和丁烷异构化流出物的混合物进入脱异丁烷塔。 从分馏器中取出的正链烷烃被异构化并返回到分馏器中，并从分馏器中取出异链烷烃并进行脱氢。 所得烯烃进入醚化区以使异丁烯与C 2 -C 5醇反应。 未反应的链烷烃和烯烃包含进入脱异丁烷的醚化流出物。 正丁烷和烯烃作为脱离异构化剂的副反应物被排出。 旁路的氢化使其中含有的任何烯烃饱和会干扰正常丁烷的异构化。 饱和侧面经过异构化区，异丁烷和正丁烷的混合物再循环到脱异丁烷。 在高度推断的实施方案中，来自异构化区域的废催化剂满足脱氢区的催化剂需求。

公开(公告)号：US4720336A

公开(公告)日：1988-01-19

申请号：US905600

申请日：1986-09-10

申请人： Bipin V. Vora ,  Norman H. Scott

发明人： Bipin V. Vora ,  Norman H. Scott

IPC分类号： B01J8/02 ,  B01J8/08 ,  B01J8/12 ,  C10G35/12 ,  C10G35/06

CPC分类号： C10G35/12 ,  B01J8/0214 ,  B01J8/085 ,  B01J8/12

摘要： A catalytic reactor system for effecting the contact of a reactant stream with catalyst particles that are movable by gravity flow through the system, which comprises in combination: (a) a vertically elongated confined reaction chamber; (b) a catalyst loading chamber having a fixed volume located outside of and generally overhead of the reaction chamber whereby fresh catalyst particles gravitationally flow downward into the chamber; (c) concentrically spaced apart wall members which provide an annular-form catalyst-retaining section that is spaced inwardly from the wall of the reaction chamber to additionally provide a manifold space around the section and a cylindrical center pipe volume, the wall members having a perforate screen lower end and an imperforate upper end wherein the imperforate upper end defines a portion of the annular-form catalyst-retaining section having a volume of greater than about 100% of the catalyst loading chamber; (d) an imperforate cover means over the annular-form catalyst-retaining section; (e) catalyst transfer means which connects a lower portion of the catalyst loading chamber to the top of the annular-form catalyst-retaining section; (f) catalyst outlet means which connects the annular-form catalyst-retaining section to the lower portion of the reaction chamber; (g) a reactant stream inlet means in communication with the reaction chamber and passageway means to the annular space around the annular-form catalyst-retaining section; (h) a reactant stream outlet means in communication with the reaction chamber and passageway means from the cylindrical center pipe volume within the annular-form catalyst-retaining section to the outlet means; and (i) a plurality of uniformly spaced apart catalyst outlet means provided from the annular-form catalyst-retaining section and from the reaction chamber.

摘要翻译： 一种用于实现反应物流与可通过重力流动通过系统移动的催化剂颗粒的接触的催化反应器系统，其包括：（a）垂直伸长的限制反应室; （b）具有固定体积的催化剂装载室，其位于反应室的外部并且通常位于反应室顶部，由此新鲜的催化剂颗粒重力地向下流入室中; （c）同心隔开的壁构件，其提供环形催化剂保持部分，其从反应室的壁向内隔开，以另外提供围绕该部分的歧管空间和圆柱形中心管体积，壁构件具有 穿孔筛下端和无孔上端，其中无孔上端限定环形形式的催化剂保持部分的一部分具有大于催化剂装载室的约100％的体积; （d）在环形催化剂保持部分上方的无孔覆盖装置; （e）催化剂转移装置，其将催化剂装载室的下部连接到环形催化剂保持部分的顶部; （f）催化剂出口装置，其将环形催化剂保持部分连接到反应室的下部; （g）反应物流入口装置，其与反应室和通道装置连通到环形催化剂保持部分周围的环形空间; （h）反应物流出口装置，其与反应室和通道装置连通，从环形催化剂保持部分内的圆柱形中心管体到出口装置; 和（i）从环形催化剂保持部分和从反应室提供的多个均匀间隔开的催化剂出口装置。

公开(公告)号：US4523048A

公开(公告)日：1985-06-11

申请号：US596772

申请日：1984-04-04

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C15/107 ,  C07C1/00

CPC分类号： C07C15/107 ,  C07C2523/44 ,  C07C2527/043 ,  C07C2527/1206

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. 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. 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，其随后装入用于与芳族烃反应的烷基化区。 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。 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：US4304948A

公开(公告)日：1981-12-08

申请号：US163763

申请日：1980-06-27

申请人： Bipin V. Vora ,  Dennis J. Ward

发明人： Bipin V. Vora ,  Dennis J. Ward

IPC分类号： C10L1/06 ,  C07C2/08

CPC分类号： C10L1/06 ,  Y02P20/582

摘要： A multi-step hydrocarbon conversion process for producing gasoline from butane is disclosed. Butane is passed into a dehydrogenation zone and the entire dehydrogenation zone effluent is then passed into a catalytic condensation zone wherein butylene is converted into C.sub.8 and C.sub.12 hydrocarbons. The condensation zone effluent, a stripper overhead stream and an absorber bottoms stream are commingled and then separated into vapor and liquid portions. The liquid is passed into the stripper, and the vapor portion is contacted with stripper bottoms liquid in an absorber. The absorber overhead stream is contacted with liquid butane in a second absorber to remove C.sub.8 hydrocarbons and is then recycled to the dehydrogenation zone. Debutanizing a portion of the stripper bottoms yields the liquid butane and a gasoline product.

摘要翻译： 公开了一种用于从丁烷生产汽油的多步烃转化方法。 丁烷进入脱氢区，然后将全部脱氢区流出物送入催化冷凝区，其中丁烯转化为C8和C12烃。 冷凝区流出物，汽提器顶部物流和吸收塔底物流混合，然后分离成蒸汽和液体部分。 将液体通入汽提器中，蒸气部分与吸收器中的汽提塔底部液体接触。 吸收剂塔顶物流与第二吸收器中的液体丁烷接触以除去C8烃，然后再循环到脱氢区。 去除一部分汽提塔底部产生液体丁烷和汽油产品。

公开(公告)号：US4275255A

公开(公告)日：1981-06-23

申请号：US112484

申请日：1980-01-16

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C5/27 ,  C07C9/16 ,  C10L1/06 ,  C07C2/58

CPC分类号： C10L1/06 ,  C07C5/2791 ,  C07C9/16

摘要： A hydrocarbon conversion process for the production of motor fuel blending stocks from butanes is disclosed. The butane feed stream enters a deisobutanizer column. A normal butane-rich stream removed from the deisobutanizer is passed into an isomerization zone, with isomerization zone effluent being returned to the deisobutanizer. An isobutane-rich deisobutanizer overhead stream is passed through a dehydrogenation zone which contains a depropanizer and then into an alkylation zone. The effluent of the alkylation zone is fractionated into a product stream and recycle streams passed into the deisobutanizer and the depropanizer. The utilities cost of operating the process is lowered by integration of the heat exchange required in the process.

摘要翻译： 公开了一种从丁烷生产汽油燃料混合原料的烃转化方法。 丁烷进料流进入脱异丁烷塔。 将从去异构化剂中除去的正常富含丁烷的流进入异构化区，异构化区流出物被返回到脱异丁烷。 富含异丁烷的脱异丁烷塔顶物流通过脱氢区，该脱氢区包含去丙烷化器，然后进入烷基化区。 将烷基化区的流出物分馏成产物流并将再循环的物流送入脱异丁烷和脱丙烷。 通过整合该过程中所需的热交换来降低操作该过程的公用事业成本。