-
1.发明授权公开(公告)号：US06194626B1
公开(公告)日：2001-02-27
申请号：US09455424
申请日：1999-12-06
申请人： Bipin V. Vora , Paul R. Cottrell
发明人： Bipin V. Vora , Paul R. Cottrell
IPC分类号： C07C7163
摘要： A cyclic process for the purification of a diolefin hydrocarbon stream produced in a naphtha steam cracker to produce a high quality diolefin hydrocarbon stream having extremely low levels of acetylene over an extended period because of the ability to readily cyclically regenerate catalyst contained in an off-line selective hydrogenation reaction zone. The spent or partially spent catalyst is contacted with a stream containing naphtha and hydrogen to restore at least a portion of the fresh catalyst activity by the extraction of polymer compounds therefrom.
摘要翻译： 用于净化石脑油蒸汽裂化器中生产的二烯烃烃流的循环方法，以在延长的时间内产生具有极低水平乙炔的高质量二烯烃烃流，这是因为能够容易地循环再生包含在离线中的催化剂 选择性加氢反应区。 将消耗或部分废弃的催化剂与含有石脑油和氢气的流体接触，以通过从其中提取聚合物化合物来恢复至少一部分新鲜催化剂活性。
-
2.发明授权
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：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。
-
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。
-
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。
-
6.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。
-
7.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。
-
8.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。
-
公开(公告)号：US5990369A
公开(公告)日：1999-11-23
申请号：US21044
申请日：1998-02-09
申请人： Paul T. Barger , R. Joe Lawson , Bipin V. Vora
发明人： Paul T. Barger , R. Joe Lawson , Bipin V. Vora
CPC分类号： C07C11/02 , C07C2529/85 , Y02P20/127
摘要： The present invention relates to a process for the production of light olefins comprising olefins having from 2 to 4 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal alumninophosphate catalyst to produce a light olefin stream. The light olefin stream is fractionated and a portion of the products are metathesized to enhance the yield of the ethylene, propylene, and/or butylene products. Propylene can be metathesized to produce more ethylene, or a combination of ethylene and butene can be metathesized to produce more propylene. This combination of light olefin production and metathesis, or disproportionation provides flexibility to overcome the equilibrium limitations of the metal aluminophosphate catalyst in the oxygenate conversion zone. In addition, the invention provides the advantage of extended catalyst life and greater catalyst stability in the oxygenate conversion zone.
摘要翻译： 本发明涉及一种用于生产轻质烯烃的方法，其包含每分子含有2至4个碳原子的含氧原料。 该方法包括使含氧化合物原料通入含有金属氨基磷酸盐催化剂的含氧化合物转化区以产生轻质烯烃流。 将轻质烯烃流分馏，并将一部分产物复分解，以提高乙烯，丙烯和/或丁烯产物的产率。 丙烯可以被复分解以产生更多的乙烯，或者乙烯和丁烯的组合可以被复分解以产生更多的丙烯。 轻烯烃生产和复分解的组合或歧化提供了克服金属磷酸铝催化剂在含氧化合物转化区中的平衡限制的灵活性。 此外，本发明提供了在含氧化合物转化区中延长的催化剂寿命和更大的催化剂稳定性的优点。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
94 条记录 (耗时 0.025 秒)
