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公开(公告)号：US07317133B2
公开(公告)日：2008-01-08
申请号：US10302258
申请日：2002-11-21
申请人： Bipin V. Vora , Peter R. Pujado
发明人： Bipin V. Vora , Peter R. Pujado
CPC分类号： C07C1/20 , C07C4/06 , C07C2529/035 , C07C2529/40 , C07C2529/86 , Y02P30/42 , C07C11/06 , C07C11/04
摘要： The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal alumino phosphate catalyst to produce a light weight olefin stream. A propylene stream and/or mixed butylene is fractionated from said light weight olefin stream and a medium weight C4 to C7 stream is cracked in a separate olefin cracking reactor to enhance the yield of ethylene and propylene products.
摘要翻译： 本发明涉及一种生产轻质烯烃的方法，其包含每分子含有2-3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磷酸铝催化剂的含氧化合物转化区以产生轻质烯烃流。 将丙烯料流和/或混合的丁烯从所述轻质烯烃料流中分馏，并将中等重量C 4至C 7 H 2流在单独的烯烃裂解反应器中裂化以增强 乙烯和丙烯产品的产率。
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公开(公告)号：US4816607A
公开(公告)日：1989-03-28
申请号：US211317
申请日：1988-06-24
CPC分类号： C07C41/06 , C07C5/2791
摘要： A multistep hydrocarbon conversion process for the production of ethers including methyl tertiary butyl ether (MTBE) from light paraffins and alcohols is disclosed. A mixture of C.sub.4 isoparaffins, normal paraffins, an etherification recycle and butane isomerization effluent enter a deisobutanizer column. Normal paraffins withdrawn from the fractionator are isomerized and returned to the fractionator, and isoparaffins are withdrawn from the fractionator and dehydrogenated. The resulting olefins enter an etherification zone for reaction of isobutene with a C.sub.2 -C.sub.5 alcohol. Unreacted paraffins and olefins comprise a portion of the etherification effluent entering the deisobutanizer. After separation for recovery of the ether product, unreacted paraffins and olefins are passed through a dehydrogenation zone for saturation of the olefins and then returned to the deisobutanizer column. Normal butanes are withdrawn as a sidecut from the deisobutanizer. The sidecut passes to an isomerization zone and a mixture of isobutane and normal butane is recycled to the deisobutanizer. In a highly preferred embodiment, spent catalyst from the isomerization zone fulfills the catalyst requirement of the dehydrogenation zone.
摘要翻译： 公开了一种用于从轻链烷烃和醇生产包括甲基叔丁基醚（MTBE）的醚的多步烃转化方法。 C4异构烷烃，正链烷烃，醚化再循环和丁烷异构化流出物的混合物进入脱异丁烷塔。 从分馏器中取出的正链烷烃被异构化并返回到分馏器中，异链烷烃从分馏器中取出并脱氢。 所得烯烃进入醚化区以使异丁烯与C 2 -C 5醇反应。 未反应的链烷烃和烯烃包含进入脱异丁烷的醚化流出物的一部分。 在分离回收醚产物后，将未反应的链烷烃和烯烃通过脱氢区以使烯烃饱和，然后返回到脱异丁烷塔。 正常丁烷作为脱离异构体的副产物被撤回。 旁路经过异构化区，异丁烷和正丁烷的混合物再循环到脱异丁烷。 在非常优选的实施方案中，来自异构化区的废催化剂满足脱氢区的催化剂需求。
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公开(公告)号：US4423251A
公开(公告)日：1983-12-27
申请号：US416414
申请日：1982-09-09
申请人： Peter R. Pujado , Bipin V. Vora
发明人： Peter R. Pujado , Bipin V. Vora
摘要： A hydrocarbon conversion process is disclosed which may be used to produce high purity isobutylene and/or tertiary butyl alcohol and methyl tertiary butyl ether. A mixed C.sub.4 feed stream is divided into two portions with a first portion being passed through a hydration zone to produce the tertiary butyl alcohol. The remaining hydrocarbons withdrawn from the hydration zone and the second portion of the feed stream are changed to an etherification zone. The unconverted hydrocarbons exiting the etherification zone may be subjected to isomerization and/or dehydrogenation to produce additional isobutylene. The high purity isobutylene is obtained by dehydrating the tertiary butyl alcohol.
摘要翻译： 公开了可用于生产高纯度异丁烯和/或叔丁醇和甲基叔丁基醚的烃转化方法。 将混合的C4进料流分成两部分，其中第一部分通过水合区以产生叔丁醇。 将从水合区域排出的剩余的烃和进料流的第二部分改变为醚化区。 离开醚化区的未转化的烃可以进行异构化和/或脱氢以产生额外的异丁烯。 通过使叔丁醇脱水获得高纯度异丁烯。
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公开(公告)号：US20090163751A1
公开(公告)日：2009-06-25
申请号：US12004843
申请日：2007-12-21
申请人： Bipin V. Vora , Peter R. Pujado
发明人： Bipin V. Vora , Peter R. Pujado
IPC分类号： C07C1/00
CPC分类号： C07C1/20 , C07C7/11 , C07C11/06 , C07C11/08 , C07C41/01 , C07C41/09 , C07C2529/85 , Y02P20/52 , C07C43/043
摘要： A method of converting methanol feedstock to olefins is provided and includes contacting the methanol feedstock in a first conversion zone with a catalyst at reaction conditions effective to produce a first reaction zone effluent comprising DME, unreacted methanol and water; cooling the first reaction zone effluent to separate DME as a first vapor product from the first reaction zone effluent and to form a first aqueous stream comprising water, unreacted methanol, soluble DME and oxygenates; contacting the first vapor product in a second conversion zone with a catalyst at reaction conditions effective to produce a second reaction zone effluent comprising light olefins, unreacted DME, water and oxygenates; cooling the second reaction zone effluent to separate the light olefins and the unreacted DME as a second vapor product from the second reaction zone effluent and to form a second aqueous stream comprising water, soluble DME and oxygenates; compressing the unreacted DME and the light olefins; separating DME from the light olefins with an aqueous absorbing liquid to produce substantially DME free olefins product and a third aqueous stream comprising the absorbing liquid, absorbed DME, soluble oxygenates and hydrocarbons; feeding at least a portion of the first, second and/or third aqueous streams into a stripper and stripping out and recovering the methanol, DME, soluble oxygenates and hydrocarbons as an overhead vapor product and a fourth aqueous stream comprising substantially clean water as a bottoms liquid product; and recycling at least a portion of the overhead vapor product to the first conversion zone and/or to the second conversion zone.
摘要翻译： 提供了一种将甲醇原料转化为烯烃的方法，包括在有效产生包含DME，未反应的甲醇和水的第一反应区流出物的反应条件下使第一转化区中的甲醇原料与催化剂接触; 冷却第一反应区流出物以将第一蒸气产物与第一反应区流出物分开，形成含有水，未反应的甲醇，可溶性DME和含氧化合物的第一含水流; 在有效产生包含轻质烯烃，未反应的DME，水和含氧化合物的第二反应区流出物的反应条件下，将第二转化区中的第一蒸气产物与催化剂接触; 冷却第二反应区流出物以从第二反应区流出物分离作为第二蒸气产物的轻质烯烃和未反应的DME，并形成包含水，可溶性DME和含氧化合物的第二含水流; 压缩未反应的DME和轻质烯烃; 用轻质烯烃与吸收液体分离DME以产生基本上不含二甲醚的烯烃产物和含有吸收液体，吸收的DME，可溶性氧化物和烃的第三含水物流; 将第一，第二和/或第三含水物流的至少一部分进料到汽提器中，并将甲醇，二甲醚，可溶性含氧物和烃作为塔顶蒸气产物和第四含水流包含基本上清洁的水作为底部 液体产品; 以及将至少一部分塔顶蒸气产物再循环到第一转化区和/或第二转化区。
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15.发明授权Selective conversion of oxygenate to propylene using moving bed technology and a hydrothermally stabilized dual-function catalyst 有权使用移动床技术和水热稳定的双功能催化剂选择性地将含氧化合物转化为丙烯公开(公告)号：US07408092B2
公开(公告)日：2008-08-05
申请号：US10988136
申请日：2004-11-12
申请人： Bryan K. Glover , John Q. Chen , Peter R. Pujado , Bipin V. Vora
发明人： Bryan K. Glover , John Q. Chen , Peter R. Pujado , Bipin V. Vora
IPC分类号： C07C1/00
CPC分类号： C07C11/06 , B01J8/082 , B01J8/085 , B01J8/12 , B01J2208/00274 , B01J2208/00283 , B01J2208/00292 , C07C1/20 , C07C2521/04 , C07C2529/40 , C07C2529/84 , C07C2529/85 , Y02P20/52
摘要： The average propylene cycle selectivity of an oxygenate to propylene (OTP) process using a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a combination of: 1) moving bed reactor technology in the hydrocarbon synthesis portion of the OTP flow scheme in lieu of the fixed bed technology of the prior art; 2) a hydrothermally stabilized and dual-functional catalyst system comprising a molecular sieve having dual-function capability dispersed in a phosphorus-modified alumina matrix containing labile phosphorus and/or aluminum anions; and 3) a catalyst on-stream cycle time of 400 hours or less. These provisions stabilize the catalyst against hydrothermal deactivation and hold the build-up of coke deposits on the catalyst to a level which does not substantially degrade dual-function catalyst activity, oxygenate conversion and propylene selectivity, thereby enabling maintenance of average propylene cycle yield near or at essentially start-of-cycle levels.
摘要翻译： 使用双功能含氧化合物转化催化剂的含氧化合物对丙烯（OTP）方法的平均丙烯循环选择性通过使用以下组合来显着增强：1）OTP流程图的烃合成部分中的移动床反应器技术 现有技术的固定床技术的代替; 2）水热稳定和双功能催化剂体系，其包含具有分散在含有不稳定磷和/或铝阴离子的磷改性氧化铝基质中的双功能能力的分子筛; 和3）催化剂在流循环时间为400小时以下。 这些规定稳定催化剂以防止水热失活，并将催化剂上焦炭沉积物的积聚保持在基本上不降低双功能催化剂活性，含氧化合物转化率和丙烯选择性的水平，从而使维持平均丙烯循环产率接近或 基本上是循环周期的水平。
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公开(公告)号：US07314963B2
公开(公告)日：2008-01-01
申请号：US10951359
申请日：2004-09-28
IPC分类号： C07C4/06
CPC分类号： B01J29/035 , B01J29/40 , B01J2229/42 , C07C4/06 , Y02P20/52 , C07C11/04 , C07C11/06
摘要： The present invention comprises a process for producing propylene comprising the steps of contacting an olefin feed containing between about 40 and about 80 wt-% olefins and between about 20 and about 60 wt-% olefins and aromatics with a spherical catalyst to form a cracked product, the catalyst comprising about 30 to about 80 wt-% of a crystalline zeolite, the reaction conditions including a temperature from about 500° to 650° C., a hydrocarbon partial pressure of 70 to 280 kPa (10 to 40 psia), a liquid hourly space velocity in the range of 5 to 40 hr−1 and wherein propylene comprises at least 90 mol-% of the total C3 products.
摘要翻译： 本发明包括一种生产丙烯的方法，包括以下步骤：将含有约40至约80重量％的烯烃和约20至约60重量％的烯烃和芳族化合物的烯烃进料与球形催化剂接触以形成裂化产物 ，催化剂包含约30至约80重量％的结晶沸石，反应条件包括约500℃至650℃的温度，70至280kPa（10至40psia）的烃分压， 在5至40小时-1的范围内的液时空速，其中丙烯占总C 3 N 3产物的至少90摩尔％。
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公开(公告)号：US5015783A
公开(公告)日：1991-05-14
申请号：US445255
申请日：1989-12-04
IPC分类号： C07C41/06
CPC分类号： C07C41/06 , C07C41/09 , Y02P20/582
摘要： Processes for the production of ethers from alcohols and isoolefins are disclosed. Isoolefins having four to five carbon atoms per molecule are combined with a monohydroxy alcohol having from one to five carbon atoms per molecule and with a recycle stream comprising alcohol and water to form an etherification zone feed stream which is passed through an etherification zone to produce the desired ether. The effluent from the etherification zone is separated into an ether product and an aqueous product containing unreacted alcohol which is recycled to provide a portion of the etherification zone feed stream. Distillation can be employed to separate the effluent from the etherification zone into a bottoms product stream, comprising the ether, a distillate product comprising other hydrocarbons and the above-mentioned recycle stream. When producing ethyl-tertiary-butyl ether (ETBE), azeotropic grade ethanol, i.e., about 5 vol. % water, is preferably utilized. The utilization of the alcohol/water recycle stream can obviate the need for additional alcohol recovery from the distillate product.
摘要翻译： 公开了从醇和异烯烃生产醚的方法。 每分子具有4至5个碳原子的异烯烃与每分子具有1至5个碳原子的单羟基醇和包含醇和水的再循环料流组合以形成醚化区进料流，其通过醚化区以产生 所需的醚。 来自醚化区的流出物被分离成醚产物和含有未反应的醇的含水产物，其被再循环以提供一部分醚化区进料流。 可以使用蒸馏将来自醚化区的流出物分离成塔底产物流，其包含醚，包含其它烃的馏出物产物和上述循环物流。 当生产乙基叔丁基醚（ETBE）时，共沸级乙醇即约5体积％ ％的水。 酒精/水循环流的利用可以避免从馏出物产品中再次进行酒精回收的需要。
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公开(公告)号：US4754078A
公开(公告)日：1988-06-28
申请号：US020806
申请日：1987-03-02
CPC分类号： C07C41/06 , C07C5/2791
摘要： A multistep hydrocarbon conversion process for the production of ethers including methyl tertiary butyl ether (MTBE) from light paraffins and alcohols is disclosed. A mixture of C.sub.4 isoparaffins, normal paraffins, an etherification recycle and butane isomerization effluent enter a deisobutanizer column. Normal paraffins withdrawn from the fractionator are isomerized and returned to the fractionator, and isoparaffins are withdrawn from the fractionator and dehyrogenated. The resulting olefins enter an etherification zone for reaction of isobutene with a C.sub.2 -C.sub.5 alcohol. Unreacted paraffins and olefins comprise the etherification effluent entering the deisobutanizer. Normal butanes and olefins are withdrawn as a sidecut from the deisobutanizer. Hydrogenation of the sidecut saturates any olefins contained therein which would interfere with the isomerization of normal butanes. The saturated sidecut passes to an isomerization zone and a mixture of isobutane and normal butane is recycled to the deisobutanizer. In a highly perferred embodiment, spent catalyst from the isomerization zone fulfills the catalyst requirement of the dehydrogenation zone.
摘要翻译： 公开了一种用于从轻链烷烃和醇生产包括甲基叔丁基醚（MTBE）的醚的多步烃转化方法。 C4异构烷烃，正链烷烃，醚化再循环和丁烷异构化流出物的混合物进入脱异丁烷塔。 从分馏器中取出的正链烷烃被异构化并返回到分馏器中，并从分馏器中取出异链烷烃并进行脱氢。 所得烯烃进入醚化区以使异丁烯与C 2 -C 5醇反应。 未反应的链烷烃和烯烃包含进入脱异丁烷的醚化流出物。 正丁烷和烯烃作为脱离异构化剂的副反应物被排出。 旁路的氢化使其中含有的任何烯烃饱和会干扰正常丁烷的异构化。 饱和侧面经过异构化区，异丁烷和正丁烷的混合物再循环到脱异丁烷。 在高度推断的实施方案中，来自异构化区域的废催化剂满足脱氢区的催化剂需求。
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19.发明授权公开(公告)号：US06346645B1
公开(公告)日：2002-02-12
申请号：US09551642
申请日：2000-04-18
IPC分类号： C07C5112
摘要： Carbonyl compounds (e.g. acetone and acetaldehyde) are often present as impurities in oxygenated organic liquids such as acetic acid made by the carbonylation of methanol or in phenol produced by the oxidation of cumene. These impurities can render petrochemical products unsuitable for long-term storage or otherwise adversely affect downstream processing operations. It has now been found that detrimental carbonyl impurities can be easily removed from oxygenated organic liquids by contact with resins having amine functional groups.
摘要翻译： 羰基化合物（例如丙酮和乙醛）通常作为杂质存在于氧化的有机液体中，例如通过羰基化甲醇或通过异丙苯的氧化产生的苯酚制得的乙酸。 这些杂质可能导致石化产品不适合长期储存或以其他方式不利地影响下游加工操作。 现在已经发现，通过与具有胺官能团的树脂接触，可以容易地从有氧氧化有机液体中除去有害的羰基杂质。
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公开(公告)号：US5559274A
公开(公告)日：1996-09-24
申请号：US427783
申请日：1995-04-25
申请人： John I. Hammerman , Peter R. Pujado
发明人： John I. Hammerman , Peter R. Pujado
IPC分类号： C07C37/60
摘要： Phenol is produced from a hydrocarbon feedstock using a process combination offering unexpected synergy. Benzene is produced from the hydrocarbon feedstock using a highly selective aromatization catalyst which provides substantial quantities of high-purity hydrogen. The hydrogen is converted to hydrogen peroxide, which in turn is used to convert the benzene to phenol in high yield.
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