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公开(公告)号：US5689029A
公开(公告)日：1997-11-18
申请号：US579112
申请日：1995-12-27
申请人： Bipin V. Vora , Tamotsu Imai
发明人： Bipin V. Vora , Tamotsu Imai
摘要： An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated by means of contacting the dehydrogenatable hydrocarbon with a dehydrogenation catalyst in a first dehydrogenation zone wherein the endothermic dehydrogenation reaction reduces the temperature of the resulting hydrocarbon stream containing dehydrogenated hydrocarbon compounds. The resulting effluent from the preceding dehydrogenation zone is then contacted with a hot hydrogen-rich gaseous stream having a temperature greater than the hydrocarbon stream to increase the temperature of the hydrocarbon stream and then the resulting heated stream is introduced into a subsequent dehydrogenation zone to produce additional dehydrogenated hydrocarbon compounds.
摘要翻译： 公开了一种用于链烷烃的催化脱氢的改进方法。 通过在第一脱氢区中使可脱氢烃与脱氢催化剂接触来进料链烷烃脱氢，其中吸热脱氢反应降低了所得含有脱氢烃化合物的烃流的温度。 然后将来自先前脱氢区的所得流出物与具有大于烃流的温度的热富氢气流接触以增加烃流的温度，然后将所得加热的流引入随后的脱氢区中以产生 额外的脱氢烃化合物。
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公开(公告)号：US5672795A
公开(公告)日：1997-09-30
申请号：US533291
申请日：1995-09-25
申请人： Bipin V. Vora , Tamotsu Imai , Peter R. Pujado
发明人： Bipin V. Vora , Tamotsu Imai , Peter R. Pujado
摘要： An etherification process combines an alkylation zone with a skeletal olefin isomerization zone in an arrangement that rejects isoalkanes and normal alkanes with only minor loss of valuable olefin isomers. The invention also provides a balanced feed to an alkylation zone for the production of high octane gasoline components. This invention can be used to provide ethers and gasoline boiling range alkylates from either C.sub.4 or C.sub.5 feedstocks. The invention fully utilizes all olefin isomers improve octane and vapor pressure charactristics of the gasoline components.
摘要翻译： 醚化方法将烷基化区与骨架烯烃异构化区结合在一起，其排斥异烷烃和正烷烃，只有少量有价值的烯烃异构体损失。 本发明还提供了用于生产高辛烷值汽油组分的烷基化区的平衡进料。 本发明可用于从C4或C5原料提供醚和汽油沸程烷基化物。 本发明充分利用所有烯烃异构体提高汽油组分的辛烷值和蒸气压特性。
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公开(公告)号：US5491275A
公开(公告)日：1996-02-13
申请号：US299874
申请日：1994-09-01
申请人： Bipin V. Vora , Tamotsu Imai
发明人： Bipin V. Vora , Tamotsu Imai
摘要： An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated by means of contacting the dehydrogenatable hydrocarbon with a dehydrogenation catalyst in a first dehydrogenation zone wherein the endothermic dehydrogenation reaction reduces the temperature of the resulting hydrocarbon stream containing dehydrogenated hydrocarbon compounds. The resulting effluent from the first dehydrogenation zone is then contacted with a hot hydrogen-rich gaseous stream having a temperature greater than the hydrocarbon stream to increase the temperature of the hydrocarbon stream and then introducing the resulting heated stream into a second dehydrogenation zone to produce additional dehydrogenated hydrocarbon compounds.
摘要翻译： 公开了一种用于链烷烃的催化脱氢的改进方法。 通过在第一脱氢区中使可脱氢烃与脱氢催化剂接触来进料链烷烃脱氢，其中吸热脱氢反应降低了所得含有脱氢烃化合物的烃流的温度。 然后将来自第一脱氢区的所得流出物与具有大于烃流的温度的热富氢气流接触以提高烃流的温度，然后将所得加热的流引入第二脱氢区以产生额外的 脱氢烃化合物。
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公开(公告)号：US5338889A
公开(公告)日：1994-08-16
申请号：US998169
申请日：1992-12-29
申请人： Bipin V. Vora , Tamotsu Imai , Peter J. Pujado
发明人： Bipin V. Vora , Tamotsu Imai , Peter J. Pujado
IPC分类号： C07C41/06
CPC分类号： C07C41/06
摘要： A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses an adsorptive separation zone for olefin and paraffin separation upstream of the MTBE unit to reduce olefin losses associated with the rejection of butanes. The location of the MTBE unit downstream of the adsorptive separation zone facilitates the essentially complete removal of isobutane from the process. Supplemental rejection of isobutane downstream of the adsorptive separation permits the use of low purity adsorptive separation zone and also allows the recovery of a high purity butene-1 product.
摘要翻译： 醚化过程和线性烯烃异构化为异烯烃的方法的组合使用MTBE单元上游的烯烃和链烷烃分离吸附分离区，以减少与异丁烷排斥相关的烯烃损失。 在吸附分离区下游的MTBE单元的位置有助于从该方法基本上完全除去异丁烷。 在吸附分离下游的异丁烷的补充排除允许使用低纯度吸附分离区，并且还允许回收高纯度的丁烯-1产物。
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公开(公告)号：US20100240941A1
公开(公告)日：2010-09-23
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。
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公开(公告)号：US07268265B1
公开(公告)日：2007-09-11
申请号：US10882531
申请日：2004-06-30
摘要： The present invention relates to a process and apparatus for the production of light olefins comprising olefins having from 2 to 3 carbon atoms per molecule from a feedstock containing heavier olefins. An intermediate cut from a fractionation column is used as olefinic feed to an olefin cracking process preferably after undergoing selective hydrogenation of diolefins. In one embodiment, a liquid side draw from a fractionation column is selectively hydrogenated and then returned to the fractionation column from which a vapor side draw containing olefins is cracked in the olefin cracking reactor.
摘要翻译： 本发明涉及一种用于生产轻质烯烃的方法和设备，其包含每分子含有2至3个碳原子的烯烃，其含有较重的烯烃的原料。 来自分馏塔的中间馏分用作烯烃裂化方法的烯烃进料，优选在进行二烯烃的选择性氢化之后。 在一个实施方案中，从分馏塔抽出的液体侧被选择性氢化，然后返回到在烯烃裂解反应器中含有烯烃的蒸汽侧馏分从其分馏的分馏塔。
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公开(公告)号：US07189885B1
公开(公告)日：2007-03-13
申请号：US10680683
申请日：2003-10-07
CPC分类号： C07C2/66 , B01J21/12 , B01J29/18 , B01J35/0006 , B01J37/26 , B01J2229/42 , C07C2/68 , C07C2521/12 , C07C2527/12 , C07C2529/18 , C07C15/107
摘要： The process disclosed herein is a process for producing phenyl-alkanes by alkylation of an aryl compound with an olefinic compound and which uses a mordenite catalyst and a silica-alumina catalyst. The selectivity of the process to 2-phenyl-alkanes can be varied over a wide range.
摘要翻译： 本文公开的方法是通过用烯烃化合物烷基化芳基化合物并使用丝光沸石催化剂和二氧化硅 - 氧化铝催化剂来生产苯基烷烃的方法。 该方法对2-苯基 - 烷烃的选择性可以在很宽的范围内变化。
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8.发明授权
公开(公告)号：US06156947A
公开(公告)日：2000-12-05
申请号：US340622
申请日：1999-06-28
申请人： Bipin V. Vora
发明人： Bipin V. Vora
CPC分类号： C07C11/08 , C07C41/06 , C07C41/42 , C07C2529/85 , Y02P20/127
摘要： A simplified process for jointly producing butene-1 and ether in a catalytic distillation column which comprises an upper catalytic zone for etherification and a lower catalytic zone for isomerization of C.sub.4 plus olefins and conversion of butadiene. The process is especially useful when combined with a process for the production of light olefins including ethylene and propylene from methanol. According to the invention, the produced butene-1 stream is combined with ethylene to produce polyethylene.
摘要翻译： 在催化蒸馏塔中共同生产丁烯-1和醚的简化方法，其包括用于醚化的上部催化区和用于C4加烯烃异构化的较低催化区和丁二烯的转化。 当与用于从甲醇生产包括乙烯和丙烯的轻质烯烃的方法组合时，该方法是特别有用的。 根据本发明，将生产的丁烯-1流与乙烯混合以制备聚乙烯。
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9.发明授权Process for removing polymeric by-products from acetylene hydrogenation product 失效从乙炔氢化产物中除去聚合物副产物的方法
公开(公告)号：US6015933A
公开(公告)日：2000-01-18
申请号：US115481
申请日：1998-07-15
申请人： Hayim Abrevaya , Bipin V. Vora
发明人： Hayim Abrevaya , Bipin V. Vora
摘要： A process to remove polymeric by-products from the product of an acetylene selective hydrogenation reactor has been developed. The product is generated by introducing hydrogen and a liquid hydrocarbon stream containing largely butadiene and some acetylenes to a reactor containing a catalyst effective for the selective hydrogenation of acetylenes. The product contains at least hydrogen, butadiene, and polymeric by-products. The pressure of the product is reduced and the product cooled. The cooled product is conducted to a low pressure flash drum to produce a hydrogen enriched stream and a butadiene and polymeric by-product-enriched stream. The hydrogen-enriched stream is removed. The butadiene and polymeric by-product is passed to a knockout drum to produce a stream enriched in butadiene and polymeric by-products having less than about 12 carbon atoms and a stream enriched in polymeric by-products having about 12 or more carbon atoms. The stream enriched in polymeric by-products having about 12 or more carbon atoms is removed from the process. Polymeric by-products containing less than about 12 carbon atoms may be removed from the remaining stream by conducting a solvent and the stream enriched in butadiene and polymeric by-products containing less than about 12 carbon atoms to an extractive distillation column. In the extractive distillation column, the butadiene and polymeric by-products containing less than about 12 carbon atoms are carried with the solvent and removed in a bottoms stream as an extract mixture while the butanes and butenes are removed in an extractive distillation overhead stream. The bottoms extract stream is conducted to a stripper column where the solvent and the polymeric by-products are separated from the butadiene.
摘要翻译： 已经开发了从乙炔选择性氢化反应器的产物中除去聚合物副产物的方法。 该产物通过将含有大量丁二烯和一些乙炔的氢气和液体烃流引入含有对乙炔的选择性氢化有效的催化剂的反应器而产生。 该产品至少含有氢，丁二烯和聚合副产物。 产品的压力降低，产品冷却。 冷却的产物被传导到低压闪蒸鼓以产生富氢流和丁二烯和聚合副产物富集流。 除去富氢流。 丁二烯和聚合副产物被传送到分离鼓中以产生富含丁二烯的流和具有小于约12个碳原子的聚合副产物和富含约12个或更多个碳原子的聚合副产物的物流。 从该方法中除去富含约12个或更多个碳原子的聚合副产物的物流。 含有少于约12个碳原子的聚合副产物可以通过将富含丁二烯的溶剂和含有少于约12个碳原子的聚合副产物的物流引入萃取蒸馏塔从剩余物流中除去。 在萃取蒸馏塔中，含有少于约12个碳原子的丁二烯和聚合副产物与溶剂一起携带并在塔底物流中作为提取物混合物除去，同时在萃取蒸馏塔顶馏出物中除去丁烷和丁烯。 将塔底提取物流引入汽提塔，其中溶剂和聚合副产物与丁二烯分离。
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10.发明授权Method for treating a liquid stream contaminated with an iodine-containing compound using a solid absorbent comprising a metal phthalocyanine 失效使用含有金属酞菁的固体吸收剂处理被含碘化合物污染的液态物流的方法
公开(公告)号：US6007724A
公开(公告)日：1999-12-28
申请号：US216767
申请日：1998-12-21
申请人： Santi Kulprathipanja , Bipin V. Vora , Yan Li
发明人： Santi Kulprathipanja , Bipin V. Vora , Yan Li
CPC分类号： B01D15/00 , B01J20/20 , B01J20/223 , B01J20/3204 , B01J20/3265 , B01J20/3416 , B01J20/3425 , B01J20/3458 , B01J20/3475 , B01J2220/66
摘要： For the removal of trace quantities of iodine-containing contaminants from corrosive liquid feed streams, an adsorbent with distinct advantages over prior-art materials is provided. The treatment method involves the use of a metal phthalocyanine compound where the metal selected from the group consisting of silver, mercury, copper, lead, thallium, palladium, or mixtures thereof. Such metals are known to be reactive with the iodine-containing contaminants in the feed stream. Furthermore, the metal phthalocyanine is deposited on a carrier material selected from the group consisting of an activated carbon, a phenolic polymer, and an inorganic refractory metal oxide. Such adsorbent materials have proven substantially insoluble even in corrosive liquid feed streams associated with the invention. Reactivation and regeneration techniques, which are generally incompatible with prior-art adsorbent materials, are also disclosed.
摘要翻译： 为了从腐蚀性液体进料流中除去痕量的含碘污染物，提供了与现有技术材料相比具有明显优点的吸附剂。 处理方法涉及使用金属酞菁化合物，其中选自银，汞，铜，铅，铊，钯或其混合物的金属。 已知这些金属与进料流中的含碘污染物反应。 此外，金属酞菁沉积在选自活性炭，酚醛聚合物和无机难熔金属氧化物的载体材料上。 已经证明这种吸附材料即使在与本发明相关的腐蚀性液体进料流中也基本不溶。 还公开了通常与现有技术吸附材料不相容的再活化和再生技术。
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