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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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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：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：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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公开(公告)号：US4575566A
公开(公告)日：1986-03-11
申请号：US598122
申请日：1984-04-09
申请人： Bipin V. Vora
发明人： Bipin V. Vora
CPC分类号： C07C41/06 , Y02P20/125
摘要： An improved method is disclosed for regenerating adsorbents used in an integrated process for the production of ethers such as methyl tertiary butyl ether by the reaction of an alcohol with an isoolefin. The sorbents are used to remove such compounds as the product ether and the feed alcohol from a hydrocarbon-rich stream withdrawn from the etherification zone. The regeneration procedure includes contacting the sorbent with a heated portion of the treated hydrocarbon stream. The resultant contaminated hydrocarbon stream is passed into a stripping column used to remove light ends from the effluent of a dehydrogenation zone in which the isoolefin fed to the etherification zone is produced. The hydrocarbonaceous compounds collected on the sorbent are thus recycled rather than being destroyed or lost in low purity effluent streams.
摘要翻译： 公开了一种用于再生吸附剂的改进方法，所述吸附剂用于通过醇与异烯烃的反应来生产醚如甲基叔丁基醚的一体化方法。 吸附剂用于从从醚化区取出的富烃流中除去产物醚和进料醇中的这些化合物。 再生方法包括使吸附剂与经处理的烃流的加热部分接触。 所得到的被污染的烃流被送入汽提塔，用于从其中产生进入醚化区的异烯烃的脱氢区的流出物除去轻馏分。 因此，在吸附剂上收集的烃类化合物被循环使用，而不是在低纯度流出物流中被破坏或丢失。
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公开(公告)号：US4467128A
公开(公告)日：1984-08-21
申请号：US534912
申请日：1983-09-22
申请人： Bipin V. Vora
发明人： Bipin V. Vora
CPC分类号： C07C15/107 , C07C2/70 , C07C2527/1206 , Y02P20/52 , Y02P20/584
摘要： A process is disclosed for the production of alkylaromatic hydrocarbons by the HF catalyzed reaction of an aromatic hydrocarbon with a C.sub.8 -plus acyclic olefin. A portion of the HF used as catalyst is regenerated by passage into a stripping column which has a primary function of stripping dissolved HF out of a hydrocarbonaceous mixture produced in the alkylation zone. This eliminates the requirement for a separate HF regeneration column and the costs associated with this column.
摘要翻译： 公开了通过芳族烃与C 8加无环烯烃的HF催化反应生产烷基芳烃的方法。 用作催化剂的HF的一部分通过进入汽提塔再生，汽提塔具有从烷基化区产生的烃类混合物中汽提溶解的HF的主要功能。 这消除了单独的HF再生柱的需求和与该柱相关的成本。
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公开(公告)号：US4381417A
公开(公告)日：1983-04-26
申请号：US327655
申请日：1981-12-04
CPC分类号： C07C5/333 , Y10S62/932
摘要： A process for the catalytic dehydrogenation of low molecular weight paraffinic hydrocarbons is disclosed. The process is particularly directed to the separation of hydrogen from the olefinic hydrocarbon products and unreacted paraffinic hydrocarbons.
摘要翻译： 公开了低分子链烷烃的催化脱氢方法。 该方法特别涉及从烯烃产物和未反应的链烷烃中分离氢。
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30.发明授权Dehydrogenation process utilizing indirect heat exchange and direct combustion heating 失效使用间接热交换和直接燃烧加热的脱氢方法
公开(公告)号：US4376225A
公开(公告)日：1983-03-08
申请号：US290119
申请日：1981-08-05
申请人： Bipin V. Vora
发明人： Bipin V. Vora
IPC分类号： C07C5/333
CPC分类号： C07C5/333
摘要： A multiple reaction zone process for dehydrogenating light hydrocarbons, preferably propane, is disclosed. The feed stream and intermediate streams are first heated by indirect heat exchange to temperatures slightly below the desired inlet temperature of the dehydrogenation catalyst beds. These streams are then transported to a location which is in close proximity of the dehydrogenation catalyst bed and further heated by the selective combustion of hydrogen present in these streams through the use of beds of oxidation catalyst. This eliminates lengthy high temperature reactant residence times in transfer lines extending between fired heaters and the dehydrogenation catalyst beds, thereby reducing thermal cracking of the feed and increasing the selectivity of the process. The process has special utility with stacked moving bed reactors, which have larger volume reactant transfer lines.
摘要翻译： 公开了用于使轻烃（优选丙烷）脱氢的多反应区方法。 首先通过间接热交换将进料流和中间物流加热到稍低于脱氢催化剂床的所需入口温度的温度。 然后将这些物流运送到非常接近脱氢催化剂床的位置，并通过使用氧化催化剂床的这些物流中存在的氢的选择性燃烧进一步加热。 这消除了在燃烧的加热器和脱氢催化剂床之间延伸的输送管线中长时间的高温反应物停留时间，从而减少进料的热裂化并提高该方法的选择性。 该方法具有堆叠移动床反应器的特殊用途，其具有较大体积的反应物传输线。
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