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：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：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。

公开(公告)号：US4172209A

公开(公告)日：1979-10-23

申请号：US936317

申请日：1978-08-23

申请人： Bipin V. Vora

发明人： Bipin V. Vora

IPC分类号： C07C51/265 ,  C07C51/33

CPC分类号： C07C51/265

摘要： A process for the catalytic liquid-phase oxidation of xylenes to produce benzene dicarboxylic acids. An off-gas stream which remains after a partial condensation of the oxidation zone vapor-phase effluent stream and the off-gas streams of an acetic acid fractionation column and a methyl acetate fractionation column are scrubbed by internally generated water streams. The aqueous scrubbing liquids are then processed in fractionation columns used in the process to recover acetic acid and methyl acetate.

摘要翻译： 二甲苯催化液相氧化生产苯二羧酸的方法。 在氧化区气相流出物流和乙酸分馏塔和乙酸甲酯分馏塔的废气流部分冷凝后残留的废气流被内部生成的水流洗涤。 然后将水性洗涤液在用于回收乙酸和乙酸甲酯的方法中使用的分馏塔中进行处理。

公开(公告)号：USRE29084E

公开(公告)日：1976-12-21

申请号：US653683

申请日：1976-01-30

申请人： Robert F. Anderson ,  Bipin V. Vora

发明人： Robert F. Anderson ,  Bipin V. Vora

IPC分类号： B01J27/32 ,  C07C2/62

CPC分类号： B01J27/32 ,  C07C2/62 ,  C07C2527/1206 ,  Y02P20/584

摘要： An improved process for the hydrogen fluoride catalyzed alkylation of isoparaffins with olefins wherein better utilization of internal streams is achieved. Isoparaffins used as a stripping medium in the catalyst regeneration zone are reclaimed, free of a hydrogen fluoride phase, and are utilized as recycle isoparaffins to improve the quality of the alkylate product.

公开(公告)号：US08524971B2

公开(公告)日：2013-09-03

申请号：US12406522

申请日：2009-03-18

申请人： Mark G. Riley ,  Bipin V. Vora

发明人： Mark G. Riley ,  Bipin V. Vora

IPC分类号： C07C5/333

CPC分类号： C07C5/3335 ,  C10G2400/20 ,  C10G2400/22

摘要： A process is presented for the dehydrogenation of hydrocarbons in a radial flow reactor. The process includes the continuous feeding of catalyst into the reactor and the continuous withdrawal of catalyst from the reactor, where the catalyst is modified to increase the increased density. The catalyst is a layered structure with a dense core and an active catalytic outer layer.

摘要翻译： 提出了一种用于在径向流动反应器中烃的脱氢的方法。 该方法包括将催化剂连续进料到反应器中，以及催化剂从反应器中连续排出，其中催化剂被改性以增加密度。 催化剂是具有致密核心和活性催化外层的层状结构。