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公开(公告)号：US4009222A
公开(公告)日：1977-02-22
申请号：US624626
申请日：1975-10-22
CPC分类号： C07C2/70 , C07C2/54 , C07C2/62 , C07C2527/1206
摘要： Byproduct or waste gases, containing hydrogen fluoride, from an HF-catalyzed hydrocarbon alkylation process are contacted with a stream of liquid hydrocarbon essentially free from hydrogen fluoride. Hydrogen fluoride from the waste gases is recovered within the liquid hydrocarbon and is returned to the process therewith. Resulting waste gases are of reduced hydrogen fluoride content, and the recovery of hydrogen fluoride is thereby increased.
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32.发明授权Alkylation process utilizing HF regenerator stream to a multi-tray isoparaffin stripper 失效使用HF再生器流到多塔板异构烷烃脱蜡器的烷基化方法
公开(公告)号：US3956416A
公开(公告)日：1976-05-11
申请号：US533421
申请日：1974-12-16
申请人： Bipin V. Vora
发明人： Bipin V. Vora
CPC分类号： C07C2/62 , C10G29/205 , C07C2527/1206 , Y02P20/582 , Y02P20/584
摘要： In prior art HF alkylation processes, an HR regenerator overhead vapor stream is processed in various ways including combining it with overhead vapor streams of an isoparaffin stripper or an HF stripper, or condensing, settling, and pumping it in a regenerator overhead system to an HF alkylation reaction zone. In the present HF alkylation system comprising a reaction and settling zone, an acid regeneration zone, and a products fractionation zone including an isoparaffin stripper from which a side-cut recycle stream containing principally isoparaffin is withdrawn, an improvement is made by taking overhead vapor from the regenerator and introducing the vapor directly into the isoparaffin stripper at a locus above that at which the side-cut recycle stream is withdrawn.
摘要翻译： 在现有技术的HF烷基化方法中，HR再生器塔顶蒸气流以各种方式加工，包括将其与异链烷烃汽提塔或HF汽提塔的塔顶蒸气流组合，或冷凝，沉降并在再生塔架系统中将其泵入HF 烷基化反应区。 在包括反应和沉降区，酸再生区和包含异链烷烃脱附器的产物分馏区的本发明的HF烷基化体系中，取出主要为异链烷烃的侧馏分循环流，通过从塔顶蒸气 再生器，并将蒸汽直接引入异烷烃汽提器中，高于侧馏分循环流被抽出的位置。
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33.发明授权公开(公告)号：US08052945B2
公开(公告)日：2011-11-08
申请号：US12860033
申请日：2010-08-20
摘要： In an oligomerization apparatus comprising at least two oligomerization reactors, at least portions of product streams from two reactors are separated in the same separator vessel; a liquid product stream from the first oligomerization reactor is fed to a fractionation column and a side cut from the fractionation column feeds the second oligomerization reactor.
摘要翻译： 在包含至少两个低聚反应器的低聚装置中，来自两个反应器的至少部分产物流在相同的分离器容器中分离; 将来自第一低聚反应器的液体产物流进料至分馏塔，从分馏塔切出的一侧进料第二低聚反应器。
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34.发明申请公开(公告)号：US20100316536A1
公开(公告)日：2010-12-16
申请号：US12860033
申请日：2010-08-20
IPC分类号： B01J19/18
摘要： In an oligomerization process comprising at least two oligomerization reactors, at least portions of product streams from two reactors are separated in the same separator vessel. In an embodiment, a liquid product stream from the first oligomerization reactor is fed to a fractionation column and a side cut from the fractionation column feeds the second oligomerization reactor.
摘要翻译： 在包含至少两个低聚反应器的低聚方法中，来自两个反应器的至少部分产物流在相同的分离器容器中分离。 在一个实施方案中，将来自第一低聚反应器的液体产物流进料至分馏塔，并且从分馏塔切出的一侧进料第二低聚反应器。
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公开(公告)号：US07368618B2
公开(公告)日：2008-05-06
申请号：US11457889
申请日：2006-07-17
IPC分类号： C07C5/327
摘要： The present invention comprises a process for removal of oxygenates from a paraffin-rich or olefin-rich paraffin stream which comprises passing a feed stream, comprising one or more C10 to C15 feed paraffins or C10 to C15 olefin-rich paraffin stream and one or more oxygenates through an adsorbent bed comprising one or more adsorbents selected from silica gel, activated alumina and sodium x zeolites to remove essentially all of said oxygenates; and recovering said paraffins. A second adsorbent bed may be employed to more thoroughly remove these oxygenates.
摘要翻译： 本发明包括从富含链烷烃或富烯烃的石蜡流中除去含氧化合物的方法，该方法包括将含有一个或多个C 10的进料流送入C 15 通过吸附床将含有一种或多种选自硅胶，活性氧化铝和吸附剂的吸附剂的烷烃或C 10向富含C 15的富烯烃链烷烃流和一种或多种含氧化合物进料， 钠x沸石以除去基本上所有的含氧化合物; 并回收所述石蜡。 可以使用第二吸附剂床来更彻底地除去这些含氧化合物。
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公开(公告)号：US06590132B1
公开(公告)日：2003-07-08
申请号：US09844208
申请日：2001-04-27
申请人： Bipin V. Vora
发明人： Bipin V. Vora
IPC分类号： C07C704
CPC分类号： C10G70/041 , B01D3/143 , C07C7/05 , C07C11/02
摘要： The process disclosed separates light olefins from heavy oligomers in a distillation column with an intermediary having a boiling point between the light olefin and the heavy oligomer in the column feed. The invention contemplates separating C4 hydrocarbons from C8 hydrocarbons in an effluent from an oligomerization reactor. The effluent includes or is supplemented with an intermediary that can include C5 hydrocarbon, C6 hydrocarbon or mixtures of both. Consequently, the bottoms reboiler temperature can be lower.
摘要翻译： 所公开的方法在具有在色谱柱进料中的轻质烯烃和重低聚物之间的沸点的中间体的蒸馏塔中分离轻烯烃与重低聚物。 本发明考虑在来自低聚反应器的流出物中分离C4烃与C8烃。 流出物包括或补充有可以包括C 5烃，C 6烃或两者的混合物的中间体。 因此，底部再沸器温度可以更低。
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37.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。
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公开(公告)号：US5750800A
公开(公告)日：1998-05-12
申请号：US556117
申请日：1995-11-09
CPC分类号： C07C41/05 , C07C5/333 , Y02P20/125
摘要： An integrated process to produce diisopropyl ether from propane has been developed. In a first reaction zone the propane in a feedstock, after any hydrocarbons containing four or more carbon atoms are removed from the feedstock via fractionation, is dehydrogenated in the presence of a dehydrogenation catalyst to form propylene. After removing hydrogen, the propane and propylene mixture generated in the first reaction zone is separated into a propane enriched stream and a propylene enriched stream where the propylene enriched stream contains at least 65 mass % propylene. The propane enriched stream is recycled to the feedstock fractionation unit, and the propylene of the propylene enriched stream is reacted with water in a second reaction zone in the presence of an acidic catalyst to form isopropyl alcohol which is concurrently reacted with propylene to produce diisopropyl ether. A portion of the second reaction zone effluent is recycled to the second reaction zone, and the remainder may be collected or further separated to provide a high purity diisopropyl ether product. A variant to produce high purity propylene as well as diisopropyl ether is also discussed.
摘要翻译： 已经开发了从丙烷生产二异丙醚的综合方法。 在第一反应区中，原料中的丙烷在含有四个或更多个碳原子的烃通过分馏从原料中除去后，在脱氢催化剂存在下脱氢形成丙烯。 除去氢气后，在第一反应区产生的丙烷和丙烯混合物分离成富丙烷流和富丙烯流，其中富含丙烯的料流含有至少65质量％的丙烯。 将富丙烷流再循环至原料分馏装置，在酸性催化剂存在下，使丙烯富集物流的丙烯与第二反应区中的水反应形成异丙醇，同时与丙烯反应产生二异丙醚 。 第二反应区流出物的一部分再循环至第二反应区，其余部分可以被收集或进一步分离以提供高纯度的二异丙醚产物。 还讨论了生产高纯度丙烯以及二异丙基醚的变体。
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公开(公告)号：US4761509A
公开(公告)日：1988-08-02
申请号：US17964
申请日：1987-02-24
申请人： Bipin V. Vora , Daniel L. Ellig
发明人： Bipin V. Vora , Daniel L. Ellig
CPC分类号： C07C11/02 , C07C5/3337
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 byproduct diolefins along with the intended product monoolefins. The liquid phase process stream in admixture with hydrogen and a sulfur compound is passed through a selective hydrogenation zone in which diolefins are catalytically converted to monoolefins. This selective hydrogenation in the presence of trace quantities of a sulfur compound increases the quality of the product monoolefin stream. The selective hydrogenation zone is located between the vapor-liquid separator and the 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气流，其部分冷凝以产生液相工艺流，其中含有副产物二烯烃以及预期的产物单烯烃。 将与氢气和硫化合物混合的液相工艺流通过选择性氢化区，其中二烯烃被催化转化成单烯烃。 在微量硫化合物的存在下的这种选择性氢化增加了产物单烯烃流的质量。 选择性加氢区位于气液分离器和脱氢区的汽提塔之间。
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公开(公告)号：US4695662A
公开(公告)日：1987-09-22
申请号：US848354
申请日：1986-04-04
申请人： Bipin V. Vora
发明人： Bipin V. Vora
摘要： A process is disclosed for the catalytic dehydrogenation of propane or butanes. The vapor phase reaction zone effluent stream is contacted with a heavy absorption liquid and then with a light absorption liquid. The light absorption liquid is composed of hydrocarbons recovered from the reaction zone effluent stream. This secondary contacting removes components of the heavy absorption liquid from the recycle gas, thus eliminating the deleterious effects of these compounds on the dehydrogenation catalyst. The heavy absorption liquid may be produced within the process by a catalytic olefin-consuming reaction zone.
摘要翻译： 公开了用于丙烷或丁烷的催化脱氢的方法。 气相反应区流出物流与重吸收液体接触，然后与光吸收液接触。 光吸收液体由从反应区流出物流中回收的烃组成。 这种二次接触从循环气体中除去重吸收液体的组分，从而消除了这些化合物对脱氢催化剂的有害影响。 重吸收液体可以通过催化烯烃消耗反应区在该过程中产生。
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