Process for coverting methanol to alkyl ethers
    1.
    发明授权
    Process for coverting methanol to alkyl ethers 失效
    将甲醇覆盖至烷基醚的方法

    公开(公告)号:US4746761A

    公开(公告)日:1988-05-24

    申请号:US65775

    申请日:1987-07-02

    摘要: A multistage process for producing isoalkyl ethers from lower aliphatic oxygenate feedstock, such as methanol. Feedstock is catalytically converted in a primary catalyst stage at elevated temperature in contact with zeolite catalyst to predominantly C.sub.2 -C.sub.7 lower olefins comprising isobutylene and isoamylene, by-product water and a minor amount of C.sub.8.sup.+ hydrocarbons, followed by fractionation of the C.sub.2 -C.sub.7 olefins to recover a C.sub.2 -C.sub.3 -rich recycle stream for further catalytic conversion in the primary stage. C.sub.4 -C.sub.7 olefins are passed to a second catalytic etherification stage for reaction of isoalkenes with methanol to produce methyl tertiary-butyl ether, methyl isoamylether and higher isoalkyl ethers. The second stage effluent may be fractionated to recover an ether product, C.sub.5.sup.+ hydrocarbon liquid product, and unreacted butenes. Advantageously, the unreacted butenes are further reacted with isoparaffin in a third catalytic stage under acid catalysis alkylation conditions, and fractionated to recover C.sub.6.sup.+ alkylate liquid, liquid hydrocarbon product. The ethers may be blended with at least one C.sub.6.sup.+ hydrocarbon to produce high octane gasoline.

    摘要翻译: 用于从低级脂族含氧化合物原料如甲醇生产异烷基醚的多阶段方法。 原料在初级催化剂阶段在升高的温度下与沸石催化剂催化转化成主要是包含异丁烯和异戊烯,副产物水和少量C 8+烃的C 2 -C 7低级烯烃,然后分馏C2-C7烯烃 以回收在初级阶段进一步催化转化的富含C2-3的再循环物流。 将C4-C7烯烃通入第二催化醚化阶段,以使异烯烃与甲醇反应,生成甲基叔丁基醚,甲基异戊醚和高级异烷基醚。 第二级流出物可以分馏以回收醚产物,C5 +烃液体产物和未反应的丁烯。 有利地,在酸催化烷基化条件下,在第三催化阶段中,未反应的丁烯进一步与异链烷烃反应,并分馏以回收C6 +烷基化液体液体烃产物。 醚可以与至少一种C6 +烃混合以产生高辛烷值汽油。

    Process for converting methanol to alkyl ethers, gasoline, distillate
and alkylate liquid hydrocarbons
    2.
    发明授权
    Process for converting methanol to alkyl ethers, gasoline, distillate and alkylate liquid hydrocarbons 失效
    将甲醇转化为烷基醚,汽油,馏出物和烷基化液体烃的方法

    公开(公告)号:US4684757A

    公开(公告)日:1987-08-04

    申请号:US886996

    申请日:1986-07-18

    摘要: A multistage process for producing ethers from lower aliphatic oxygenate feedstock, such as methanol. Feedstock is catalytically converted in a primary catalyst stage at elevated temperature in contact with zeolite catalyst to predominantly C.sub.2 -C.sub.5 lower olefins comprising isobutylene and isoamylene, by-product water and a minor amount of C.sub.6.sup.+ hydrocarbons, followed by fractionation of the C.sub.2 -C.sub.5 olefins to recover a C.sub.2 -C.sub.3 -rich recycle stream for further catalytic conversion in the primary stage. C.sub.4 -C.sub.5 olefins are passed to a second catalytic etherification stage for reaction of isoalkenes with methanol to produce methyl tertiary-butyl ether and methyl isoamylether. The second stage effluent may be fractionated to recover an ether product, C.sub.5.sup.+ hydrocarbon liquid product, and unreacted butenes. Advantageously, the unreacted butenes are further reacted wtih isoparaffin in a third catalytic stage under acid catalysis alkylation conditions, and fractionated to recover C.sub.6.sup.+ alkylate liquid, liquid hydrocarbon product. The ethers may be blended with at least one C.sub.6.sup.+ hydrocarbon to produce high octane gasoline.

    摘要翻译: 用于从低级脂肪族含氧化合物原料如甲醇生产醚的多阶段方法。 原料在初级催化剂阶段在升高的温度下与沸石催化剂催化转化成主要是包含异丁烯和异戊烯,副产物水和少量C 6 +烃的C 2 -C 5低级烯烃,然后分馏C2-C5烯烃 以回收在初级阶段进一步催化转化的富含C2-3的再循环物流。 将C4-C5烯烃通入第二催化醚化阶段,以使异烯烃与甲醇反应生成甲基叔丁基醚和甲基异戊醚。 第二级流出物可以分馏以回收醚产物,C5 +烃液体产物和未反应的丁烯。 有利地,未反应的丁烯在酸性催化烷基化条件下在第三催化阶段进一步与异链烷烃反应,并分馏以回收C6 +烷基化物液体液体烃产物。 醚可以与至少一种C6 +烃混合以产生高辛烷值汽油。

    Conversion of diene-containing light olefins to aromatic hydrocarbons
    3.
    发明授权
    Conversion of diene-containing light olefins to aromatic hydrocarbons 失效
    含二烯烃的轻质烯烃转化为芳烃

    公开(公告)号:US4751338A

    公开(公告)日:1988-06-14

    申请号:US6399

    申请日:1987-01-23

    IPC分类号: C07C2/00 C07C15/00 C10G29/00

    摘要: A technique for continuous conversion of diene-containing aliphatic hydrocarbon feedstock to heavier hydrocarbon products wherein the feedstock is contacted at elevated temperature under endothermic high severity reaction conditions with a fluidized bed of acidic zeolite fine catalyst particles, comprising methods and means for:maintaining the fluidized catalyst bed in a vertical reactor having a turbulent reaction zone by passing vapor upwardly through the reaction zone at a velocity greater than dense bed transition velocity to a turbulent regime and less than transport velocity for the average catalyst particle;feeding a continuous stream of feedstock into the reaction zone, said feedstream comprising sufficient C.sub.3.sup.+ alkanes to require net endothermic reaction conditions;withdrawing a portion of coked catalyst from the reaction zone, oxidatively regenerating the withdrawn catalyst, heating the catalyst substantially above process temperature in the fluidized bed reactor, and returning hot regenerated catalyst to the reaction zone at a rate to control catalyst activity and reaction temperature under conditions of reaction severity to effect feedstock conversion to an aromatics-rich hydrocarbon effluent stream; andseparating an aromatics-rich product from the fluidized bed effluent stream.Aromatics yield is increased by recovering a recycle stream comprising C.sub.5.sup.+ aliphatic hydrocarbons from the fluidized bed effluent stream for further conversion in the fluidized bed to increase aromatics product yield.

    摘要翻译: 一种用于将含二烯烃的脂族烃原料连续转化为较重烃产物的技术,其中原料在吸热高度苛刻度的反应条件下在升高的温度下与酸性沸石细催化剂颗粒的流化床接触,包括以下步骤: 催化剂床在具有湍流反应区的立式反应器中,通过使蒸气向上通过反应区,速度大于致密床转变速度至湍流状态且小于平均催化剂颗粒的输送速度; 将连续的原料流送入反应区,所述进料流包含足够的C3 +烷烃以需要净吸热反应条件; 将一部分焦化催化剂从反应区中取出,氧化再生催化剂,在流化床反应器中将催化剂加热至高于工艺温度,并将热再生催化剂返回到反应区,以控制催化剂活性和反应温度 使原料转化成富含芳烃的烃流出物流的反应条件; 以及从流化床流出物流中分离富含芳烃的产物。 通过从流化床流出物流中回收包含C5 +脂族烃的再循环料流以在流化床中进一步转化以提高芳族化合物产物产率来提高芳族化合物产率。

    Fluidized bed process for upgrading diene-containing light olefins
    4.
    发明授权
    Fluidized bed process for upgrading diene-containing light olefins 失效
    用于升级含二烯烃的轻质烯烃的流化床方法

    公开(公告)号:US4855521A

    公开(公告)日:1989-08-08

    申请号:US186526

    申请日:1988-04-27

    IPC分类号: C07C2/00

    CPC分类号: C07C2/00 C07C2529/40

    摘要: An improved fluidized bed process for upgrading olefinic hydrocarbon feedstock by contacting the feedstock with acidic siliceous zeolite conversion catalyst particles at elevated temperature under exothermic conditions to produce heavier hydrocarbons including gasoline range hydrocarbons. The improvement comprises maintaining a turbulent fluidized bed of catalyst particles by flowing hydrocarbon-containing vapor upwardly through said bed at less than transport velocity; and introducing liquid olefinic feedstock comprising at least one C.sub.4 -C.sub.6 diene component into the fluidized catalyst bed in a lower portion thereof by rapidly atomizing and vaporizing the liquid feedstock, thus converting feedstock to heavier hydrocarbon without substantial thermal diene degradation thereof prior to contacting conversion catalyst particles in the fluidized bed. A predominantly liquid product is recovered containing C.sub.4 -C.sub.9 hydrocarbons rich in olefins and aromatics.

    摘要翻译: 改进的流化床方法,用于通过使原料与酸性硅沸石转化催化剂颗粒在升高的温度下在放热条件下接触以产生包含汽油范围烃的较重的烃来提纯烯烃原料。 改进包括通过以低于运输速度将含烃蒸汽向上流动穿过所述床来维持催化剂颗粒的湍流流化床; 并且通过使液体原料快速雾化并使其加热,将包含至少一种C 4 -C 6二烯组分的液体烯烃原料引入到其下部的流化催化剂床中,从而将原料转化为较重的烃,而在转化催化剂 流化床中的颗粒。 回收含有富含烯烃和芳族化合物的C4-C9烃的主要液体产物。

    Upgrading diene-containing light olefins in a fluidized bed reactor
    5.
    发明授权
    Upgrading diene-containing light olefins in a fluidized bed reactor 失效
    在流化床反应器中升级含二烯的轻质烯烃

    公开(公告)号:US4778661A

    公开(公告)日:1988-10-18

    申请号:US6408

    申请日:1987-01-23

    IPC分类号: C07C2/00 B01J8/24

    CPC分类号: C07C2/00 C07C2529/40

    摘要: An improved fluidized bed process for upgrading olefinic hydrocarbon feedstock by contacting the feedstock with acidic siliceous zeolite conversion catalyst particles at elevated temperature under exothermic conditions to produce heavier hydrocarbons including gasoline range hydrocarbons. The improvement comprises maintaining a turbulent fluidized bed of catalyst particles by flowing hydrocarbon-containing vapor upwardly through said bed at less than transport velocity; and introducing liquid olefinic feedstock comprising at least one C.sub.4 -C.sub.6 diene component into the fluidized catalyst bed in a lower portion thereof by rapidly atomizing and vaporizing the liquid feedstock, thus converting feedstock to heavier hydrocarbon without substantial thermal diene degradation thereof prior to contacting conversion catalyst particles in the fluidized bed. Reaction severity conditions may be maintained by controlling catalyst acidity, reaction temperature and reactant contact time to produce reaction efluent containing propane and propene in the ratio of about 0.2:1 to 200:1. A predominantly liquid product is recovered containing C.sub.4 -C.sub.9 hydrocarbons rich in olefins and aromatics.

    摘要翻译: 改进的流化床方法,用于通过使原料与酸性硅沸石转化催化剂颗粒在升高的温度下在放热条件下接触以产生包含汽油范围烃的较重烃来提纯烯烃原料。 改进包括通过以低于运输速度将含烃蒸汽向上流动穿过所述床来维持催化剂颗粒的湍流流化床; 并通过快速雾化和蒸发液体原料将包含至少一种C 4 -C 6二烯组分的液体烯烃原料引入到其下部的流化催化剂床中,从而在接触转化催化剂之前将原料转化成较重的烃,而不会发生相当的热二烯降解 流化床中的颗粒。 可以通过控制催化剂酸度,反应温度和反应物接触时间来维持反应强度条件,以产生约0.2:1至200:1的丙烷和丙烯的反应液。 回收含有富含烯烃和芳族化合物的C4-C9烃的主要液体产物。

    Upgrading light olefins in a turbulent fluidized catalyst bed reactor
    6.
    发明授权
    Upgrading light olefins in a turbulent fluidized catalyst bed reactor 失效
    在湍流流化催化剂床反应器中升级轻质烯烃

    公开(公告)号:US4746762A

    公开(公告)日:1988-05-24

    申请号:US6407

    申请日:1987-01-23

    摘要: A fluidized bed catalytic process for conversion of light olefinic gas feedstock containing ethene to produce hydrocarbons rich in C.sub.5.sup.+ liquids, comprising the steps of maintaining a fluidized bed of zeolite catalyst particles in a turbulent reactor bed at a temperature of about 315.degree. to 510.degree. C., said catalyst having an apparent particle density of about 0.9 to 1.6 g/cm.sup.3 and a size range of about 1 to 150 microns, and average catalyst particles size of about 20 to 100 microns containing about 10 to 25 weight percent of fine particles having a particle size less than 32 microns; passing hot feedstock vapor upwardly through the fluidized catalyst bed under turbulent flow conditions; maintaining turbulent fluidized bed conditions through the reactor bed between transition velocity and transport velocity at a superficial fluid velocity of about 0.3 to 2 meters per second; and recovering hydrocarbon product containing a major amount of C.sub.5.sup.+ hydrocarbons and containing C.sub.3 -C.sub.5 alkanes and alkenes in the ratio of about 0.2:1 to 5:1.

    摘要翻译: 一种用于转化含有乙烯的轻质烯烃气体原料以产生富含C5 +液体的烃的流化床催化方法,包括以下步骤:将沸石催化剂颗粒的流化床在约315℃至510℃的温度下保持在湍流反应器床中 所述催化剂具有约0.9至1.6g / cm 3的表观颗粒密度和约1至150微米的尺寸范围,以及约20至100微米的平均催化剂颗粒尺寸,其含有约10至25重量%的具有 粒度小于32微米; 在湍流条件下将热原料蒸气向上通过流化催化剂床; 保持湍流流化床条件通过反应器床在过渡速度和运输速度之间以约0.3至2米/秒的表面流体速度; 并以约0.2:1至5:1的比例回收含有大量C 5+烃并含有C 3 -C 5烷烃和烯烃的烃产物。

    Multistage system for conversion of lower olefins with reactor quenching
means
    7.
    发明授权
    Multistage system for conversion of lower olefins with reactor quenching means 失效
    用反应器淬火方法转化低级烯烃的多级体系

    公开(公告)号:US4942021A

    公开(公告)日:1990-07-17

    申请号:US137224

    申请日:1987-12-23

    IPC分类号: C07C2/12 C07C11/02 C10G50/00

    CPC分类号: C07C11/02 C07C2/12 C10G50/00

    摘要: A continuous multistage catalytic conversion system for upgrading lower olefins comprisingfirst adaibatic catalytic bed reactor means containing an acidic zeolite solid catalyst;means for feeding light olefinic gas directly to the first reactor without addition of separate diluent or recycle streams;means for operating the first reactor under olefin partial conversion conditions at elevated temperature to control adiabatic temperature increase;interstage quench means for injecting a liquid coolant directly into first stage effluent for reducing the temperature thereof and protecting downstream catalyst;second catalytic bed reactor means for receiving cooled first stage effluent with injected liquid coolant and further converting the olefins over a metallic zeolite catalyst having a metal ethene oligomerization component;means for cooling and recovering heavier liquid hydrocarbon product from the second reactor effluent; andmeans for recovering liquid coolant from the second effluent for recycle to the interstage quench means.

    摘要翻译: 一种用于升级低级烯烃的连续多级催化转化系统,包括含有酸性沸石固体催化剂的第一辅助催化床反应器装置; 用于将轻质烯属气体直接供给到第一反应器而不加入单独的稀释剂或再循环流的装置; 用于在高温下在烯烃部分转化条件下操作第一反应器的装置,以控制绝热温度升高; 级间骤冷装置,用于将液体冷却剂直接注入第一级流出物中以降低其温度并保护下游催化剂​​; 第二催化床反应器装置,用于接收具有注入的液体冷却剂的冷却的第一级流出物,并进一步转化具有金属乙烯低聚组分的金属沸石催化剂的烯烃; 用于从第二反应器流出物冷却和回收较重液体烃产物的装置; 以及用于从第二流出物回收液体冷却剂以再循环到级间骤冷装置的装置。

    Multistage conversion of lower olefins with interreactor quenching
    9.
    发明授权
    Multistage conversion of lower olefins with interreactor quenching 失效
    低级烯烃与反应器淬火的多级转化

    公开(公告)号:US4740645A

    公开(公告)日:1988-04-26

    申请号:US903915

    申请日:1986-09-05

    摘要: A continuous multi-stage catalytic process for converting ethene-rich lower olefinic feedstock to heavier liquid hydrocarbon product, comprising the steps ofcontacting ethene-rich feedstock at elevated temperature and moderate pressure in a primary stage reaction zone with a first catalyst comprising shape selective medium pore zeolite to convert at least a portion of the lower olefinic components to intermediate olefinic hydrocarbons;cooling primary stage reaction effluent by introducing a stream of cold water sufficient to reduce the primary stage effluent to second stage reaction temperature; andcontacting unreacted ethene and at least a portion of the intermediate olefinic hydrocarbons from the primary stage with nickel-containing shape selective medium pore zeolite oligomerization component at elevated temperature to provide a heavier hydrocarbon effluent stream comprising gasoline and/or distillate range hydrocarbons.

    摘要翻译: 一种用于将含富烯烃的较低级烯烃原料转化为较重液体烃产物的连续多级催化方法,包括以下步骤:在初级阶段反应区中将升温和中等压力的富含烯烃的原料与包含形状选择介质 孔沸石将至少一部分低级烯烃组分转化成中间体烯烃; 通过引入足以将初级阶段流出物降至第二阶段反应温度的冷水流来冷却初级反应流出物; 并在升高的温度下使未反应的乙烯和至少一部分来自初级阶段的中间体烯烃与含镍形状选择性中孔沸石低聚组分接触,以提供包含汽油和/或馏出物范围烃的较重烃流出物流。