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    Integrated process for the production of propylene oxide
    21.
    发明授权
    Integrated process for the production of propylene oxide 失效
    用于生产环氧丙烷的综合工艺

    公开(公告)号：US5599956A

    公开(公告)日：1997-02-04

    申请号：US606108

    申请日：1996-02-22

    Applicant: Peter R. Pujado ,  John I. Hammerman

    Inventor： Peter R. Pujado ,  John I. Hammerman

    IPC: C07D301/12 ,  C07D303/04

    CPC classification number: C07D301/12 ,  Y02P20/125 ,  Y02P20/52

    Abstract: Propylene oxide may be produced by an integrated process utilizing as a basic feedstock a refinery stream containing saturated hydrocarbons. The first element of the process converts one or more of the saturated hydrocarbons to a stream containing propylene and hydrogen using steam cracking, catalytic cracking, or preferably catalytic dehydrogenation. Hydrogen and propylene are separated, and the hydrogen is employed in a reaction cycle affording hydrogen peroxide. The latter is then used to epoxidize propylene in the presence of a suitable catalyst, especially a titanosilicate.

    Abstract translation: 环氧丙烷可以通过使用含有饱和烃的炼油厂作为碱性原料的一体化方法生产。 该方法的第一个要素是使用蒸汽裂化，催化裂化或优选催化脱氢，将一种或多种饱和烃转化为含丙烯和氢的物流。 分离氢和丙烯，并且在提供过氧化氢的反应循环中使用氢。 然后将后者用于在合适的催化剂，特别是钛硅酸盐的存在下环氧化丙烯。

    Integrated etherification process with recycle post treatment
    22.
    发明授权
    Integrated etherification process with recycle post treatment 失效
    综合醚化过程与回收后处理

    公开(公告)号：US4816607A

    公开(公告)日：1989-03-28

    申请号：US211317

    申请日：1988-06-24

    Applicant: Bipin V. Vora ,  Peter R. Pujado ,  Richard E. Conser

    Inventor： Bipin V. Vora ,  Peter R. Pujado ,  Richard E. Conser

    IPC: C07C5/27 ,  C07C41/06

    CPC classification number: C07C41/06 ,  C07C5/2791

    Abstract: 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 Normal paraffins withdrawn from the fractionator are isomerized and returned to the fractionator, and isoparaffins are withdrawn from the fractionator and dehydrogenated.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.

    Abstract translation: 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。

    Process employing sequential isobutylene hydration and etherification
    23.
    发明授权
    Process employing sequential isobutylene hydration and etherification 失效
    采用顺序异丁烯水合和醚化的方法

    公开(公告)号：US4423251A

    公开(公告)日：1983-12-27

    申请号：US416414

    申请日：1982-09-09

    Applicant: Peter R. Pujado ,  Bipin V. Vora

    Inventor： Peter R. Pujado ,  Bipin V. Vora

    IPC: C07C11/09 ,  C07C29/04 ,  C07C41/06

    CPC classification number: C07C41/06 ,  C07C11/09 ,  C07C29/04

    Abstract: 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.

    Abstract translation: 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。

    Ammoxidation process with isolated catalyst regeneration zone
    24.
    发明授权
    Ammoxidation process with isolated catalyst regeneration zone 失效
    分离催化剂再生区的氨氧化工艺

    公开(公告)号：US4246192A

    公开(公告)日：1981-01-20

    申请号：US88987

    申请日：1979-10-29

    Applicant: Peter R. Pujado

    Inventor： Peter R. Pujado

    IPC: C07C253/26 ,  C07C120/14

    CPC classification number: C07C253/26 ,  Y02P20/584

    Abstract: A process for the ammoxidation of olefinic hydrocarbons in a fluidized bed reactor is disclosed. A relatively small stream of catalyst is removed from an unsegregated single catalyst bed within the reaction zone and passed into a regeneration zone operated at a higher temperature. Metals on the catalyst are oxidized by contact in the regeneration zone with a preheated oxygen-containing gas stream, which is then passed into the reaction zone. The residual oxygen in this gas stream may supply 15 percent or more of the oxygen consumed in the reaction zone. The continuous regeneration maintains the metals on the catalyst in a high oxidation state.

    Abstract translation: 公开了一种在流化床反应器中烯烃的氨氧化方法。 在反应区内从未分离的单个催化剂床上除去相对较小的催化剂流，并进入在较高温度下操作的再生区。 催化剂上的金属通过在再生区中与预热的含氧气流接触而被氧化，然后将其通入反应区。 该气流中的残余氧气可以提供反应区中消耗的氧气的15％或更多。 连续再生使催化剂上的金属维持在高氧化态。

    Methods of converting methanol feedstock to olefins
    25.
    发明申请
    Methods of converting methanol feedstock to olefins 有权
    将甲醇原料转化为烯烃的方法

    公开(公告)号：US20090163751A1

    公开(公告)日：2009-06-25

    申请号：US12004843

    申请日：2007-12-21

    Applicant: Bipin V. Vora ,  Peter R. Pujado

    Inventor： Bipin V. Vora ,  Peter R. Pujado

    IPC: C07C1/00

    CPC classification number: C07C1/20 ,  C07C7/11 ,  C07C11/06 ,  C07C11/08 ,  C07C41/01 ,  C07C41/09 ,  C07C2529/85 ,  Y02P20/52 ,  C07C43/043

    Abstract: 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.

    Abstract translation: 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。

    Selective conversion of oxygenate to propylene using moving bed technology and a hydrothermally stabilized dual-function catalyst
    26.
    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

    Applicant: Bryan K. Glover ,  John Q. Chen ,  Peter R. Pujado ,  Bipin V. Vora

    Inventor： Bryan K. Glover ,  John Q. Chen ,  Peter R. Pujado ,  Bipin V. Vora

    IPC: C07C1/00

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

    Spherical catalysts to convert hydrocarbons to light olefins
    27.
    发明授权
    Spherical catalysts to convert hydrocarbons to light olefins 有权
    将烃转化为轻质烯烃的球形催化剂

    公开(公告)号：US07314963B2

    公开(公告)日：2008-01-01

    申请号：US10951359

    申请日：2004-09-28

    Applicant: Timur V. Voskoboynikov ,  Michael H. Quick ,  Peter R. Pujado ,  Bipin V. Vora

    Inventor： Timur V. Voskoboynikov ,  Michael H. Quick ,  Peter R. Pujado ,  Bipin V. Vora

    IPC: C07C4/06

    CPC classification number: B01J29/035 ,  B01J29/40 ,  B01J2229/42 ,  C07C4/06 ,  Y02P20/52 ,  C07C11/04 ,  C07C11/06

    Abstract: 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.

    Abstract translation: 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％。

    Production of ethers by the reaction of alcohols and olefins
    30.
    发明授权
    Production of ethers by the reaction of alcohols and olefins 失效
    通过醇和烯烃的反应生产醚

    公开(公告)号：US5015783A

    公开(公告)日：1991-05-14

    申请号：US445255

    申请日：1989-12-04

    Applicant: Bipin V. Vora ,  Peter R. Pujado ,  Charles P. Luebke

    Inventor： Bipin V. Vora ,  Peter R. Pujado ,  Charles P. Luebke

    IPC: C07C41/06

    CPC classification number: C07C41/06 ,  C07C41/09 ,  Y02P20/582

    Abstract: 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.

    Abstract translation: 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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