Multistage system for converting olefins to heavier hydrocarbons
    1.
    发明授权
    Multistage system for converting olefins to heavier hydrocarbons 失效
    将烯烃转化为较重碳氢化合物的多级体系

    公开(公告)号:US4834949A

    公开(公告)日:1989-05-30

    申请号:US118925

    申请日:1987-11-10

    IPC分类号: C07C2/12 C10G50/00

    摘要: A multistage reactor system and operating technique for converting ethene-rich olefinic feedstock to heavier hydrocarbons, particularly gasoline and distillate range products. By employing low temperature and high temperature separators, an economic recycle is provided for each stage.

    摘要翻译: 将富烯烃烯烃原料转化为较重碳氢化合物,特别是汽油和馏出物产品的多级反应器系统和操作技术。 通过采用低温高温分离器,为每个阶段提供经济回收。

    Process for converting olefins to gasoline, distillate and alkylate
liquid hydrocarbons
    2.
    发明授权
    Process for converting olefins to gasoline, distillate and alkylate liquid hydrocarbons 失效
    将烯烃转化成汽油,馏出液和烷基化液体烃的方法

    公开(公告)号:US4633027A

    公开(公告)日:1986-12-30

    申请号:US779373

    申请日:1985-09-23

    IPC分类号: C07C9/16 C10L1/06 C07C2/00

    摘要: A continuous process for upgrading C.sub.3 -C.sub.4 hydrocarbon feed containing olefins to produce heavier liquid hydrocarbons comprising converting a major portion of C.sub.3 -C.sub.4 olefins in an oligomerization zone by contacting a shape selective medium pore zeolite catalyst at elevated temperature and pressure to make distillate and olefinic gasoline; fractionating the oligomerization stage effluent to provide distillate and gasoline product and a C.sub.3 -C.sub.4 intermediate stream containing isobutane and unconverted propene and butylene; and combining the C.sub.3 -C.sub.4 intermediate stream with a portion of C.sub.3 -C.sub.4 feed and further converting the combined streams in an alkylation zone to make heavier paraffinic hydrocarbons.The olefin feed may be produced by catalytically converting methanol or similar oxygenated hydrocarbons in a known process.

    摘要翻译: 包括用于提纯含有烯烃的C 3 -C 4烃进料以产生较重液体烃的连续方法,包括通过在升高的温度和压力下接触形状选择性中孔沸石催化剂来在低聚区域中转化大部分C 3 -C 4烯烃,以制备馏出物和烯烃 汽油; 分馏低聚段流出物以提供馏出物和汽油产物以及含有异丁烷和未转化的丙烯和丁烯的C 3 -C 4中间物流; 并将C3-C4中间物流与C3-C4进料的一部分混合,并在烷基化区进一步转化合并的物流以制备较重的链烷烃。 烯烃进料可以通过在已知方法中催化转化甲醇或类似的氧化烃来制备。

    Integrated process for converting oxygenates to liquid hydrocarbons
    3.
    发明授权
    Integrated process for converting oxygenates to liquid hydrocarbons 失效
    将含氧化合物转化为液态烃的综合方法

    公开(公告)号:US4628135A

    公开(公告)日:1986-12-09

    申请号:US779363

    申请日:1985-09-23

    IPC分类号: C07C1/20 C07C2/00

    摘要: Alkylate is produced by catalytically converting oxygenate feedstock, such as methanol, to lower olefins comprising dominantly C.sub.2 -C.sub.4 olefins. Ethene is separated from primary stage effluent by interstage sorption of C.sub.3 + components which may be upgraded. Isoparaffin may be alkylated with C.sub.3 -C.sub.4 olefins in a secondary stage.The improved technique comprises fractionating an olefinic feedstream containing ethene and C.sub.3 + olefinic components by contacting the olefinic feedstream in a sorption zone with a liquid hydrocarbon sorbent to selectively sorb C.sub.3 + components;wherein the sorbent is obtained by condensing C.sub.5 + aliphatic and aromatic hydrocarbon from the primary stage.

    摘要翻译: 通过将含氧化合物原料(例如甲醇)催化转化成包含主要C2-C4烯烃的低级烯烃制备烷基化物。 乙烯通过层间吸附C3 +组分分离,可以升级。 异链烷烃可以在次级阶段用C 3 -C 4烯烃烷基化。 改进的技术包括通过使吸附区中的烯烃进料流与液体烃吸附剂接触以选择性吸附C3 +组分来分馏含有乙烯和C3 +烯烃组分的烯烃进料流; 其中吸附剂是通过从初级阶段将C5 +脂肪族和芳族烃缩合而得到的。

    Multistage system for producing hydrocarbons
    4.
    发明授权
    Multistage system for producing hydrocarbons 失效
    用于生产碳氢化合物的多级系统

    公开(公告)号:US4569827A

    公开(公告)日:1986-02-11

    申请号:US669927

    申请日:1984-11-09

    IPC分类号: C07C2/12 C10G50/00 B01J8/04

    摘要: A multistage technique for converting olefins to heavier hydrocarbons including a sorption prefractionation unit for separating olefinic feedstock into a sorbate stream rich in liquified olefins and a vapor stream rich in light olefins; a first stage catalytic reactor unit for oligomerizing olefins from the sorbate stream including means for maintaining the first stage at elevated pressure and predetermined temperature for producing substantially linear aliphatic hydrocarbons; a second stage catalytic reactor unit for oligomerizing light olefin including means for maintaining the second stage under high severity conditions at substantially higher temperature than the first stage; and a product fractionation unit for separating effluent from the first and second stages to separate and recover heavy hydrocarbon product and a sorbent recycle fraction. The sorbent fraction is recycled to the sorption prefractionation unit for contacting olefinic feedstock with the recycled sorbent. Unconverted second stage olefins may be also sorbed by the recycled fraction for further reaction.

    摘要翻译: 用于将烯烃转化为较重烃的多级技术,包括用于将烯烃原料分离成富含液化烯烃的吸附物流和富含轻质烯烃的蒸气流的吸附预分馏装置; 用于使来自山梨酸物流的烯烃低聚的第一阶段催化反应器单元,包括用于在高压和预定温度下保持第一阶段以产生基本上直链的脂族烃的装置; 用于使轻烯烃低聚的第二阶段催化反应器单元,包括用于在比第一阶段高得多的温度下在高苛刻度条件下保持第二阶段的装置; 以及用于分离来自第一和第二阶段的流出物以分离和回收重质烃产物和吸附剂再循环部分的产物分馏单元。 将吸附剂部分再循环到吸附预分馏装置中,以使烯烃原料与回收的吸附剂接触。 未转化的第二级烯烃也可以被再循环的馏分吸收以用于进一步的反应。

    Catalytic conversion system for oligomerizing olefinic feedstock to
produce heavier hydrocarbons
    5.
    发明授权
    Catalytic conversion system for oligomerizing olefinic feedstock to produce heavier hydrocarbons 失效
    用于低聚烯烃原料以生产较重烃的催化转化体系

    公开(公告)号:US4456781A

    公开(公告)日:1984-06-26

    申请号:US488823

    申请日:1983-04-26

    CPC分类号: C07C11/02 C07C9/02 C10G50/00

    摘要: A continuous catalytic process for oligomerizing lower olefins to heavier hydrocarbons wherein a continuous liquid olefinic feedstream is diluted with a liquid alkane stream, is improved by a technique which comprises cooling catalytically converted effluent, fractionating the effluent to obtain a condensed lower aliphatic recycle stream, a liquid C.sub.3 -C.sub.4 product stream, a liquid product stream consisting essentially of C.sub.5.sup.+ hydrocarbons and a gaseous C.sub.2.sup.- gaseous stream by the sequential fractionation steps of: debutanizing the cooled effluent to obtain the liquid C.sub.5.sup.+ hydrocarbon stream and a condensed lower aliphatic stream; de-ethanizing a portion of the lower aliphatic stream to recover gaseous offgas stream and a C.sub.3 -C.sub.4 alkane product stream; and optionally recycling at least a portion of the condensed aliphatic stream from the debutanizing step for dilution of the olefinic feedstream.

    摘要翻译: 通过包括冷却催化转化的流出物,分馏出流出物以获得冷凝的低级脂肪族再循环流的技术,改进了将低级烯烃低聚到较重烃的连续催化方法,其中连续液体烯烃进料流用液体烷烃流稀释。 液体C3-C4产物流,基本上由C5 +烃和气态C2-气体物流组成的液体产物流,通过顺序分级步骤:将冷却的流出物脱氨,得到液体C5 +烃流和冷凝的低级脂族物流; 将一部分低级脂族物流脱乙烷以回收气态废气流和C3-C4烷烃产物流; 以及任选地将来自脱丁烷化步骤的至少一部分稠合脂族物流再循环以稀释烯烃进料流。

    Technique for sequential rotation of reactors in a multi-reactor
catalytic conversion system
    7.
    发明授权
    Technique for sequential rotation of reactors in a multi-reactor catalytic conversion system 失效
    反应器在多反应器催化转化系统中顺序旋转的技术

    公开(公告)号:US4789528A

    公开(公告)日:1988-12-06

    申请号:US909529

    申请日:1986-09-22

    IPC分类号: B01J8/04 C10G29/20 B01J4/00

    CPC分类号: C10G29/205 B01J8/0488

    摘要: A multi-reactor hydrocarbon catalytic conversion system includes at least three reactors, a feed source for providing hydrocarbon feed to the reactors and apparatus for sequentially backwardly rotating the reactors during process mode operation of the reactors. In each of a series of sequential cycles, at least one reactor currently operates in a regeneration mode position, while other reactors operate in process mode positions. A reactor having freshest catalyst is in a last process mode position, and a reactor having relatively least fresh catalyst is in a first process mode position. The reactor having relatively least fresh catalyst receives fresh feed first from the feed source, and the reactor having freshest catalyst receives the partially converted feed last. Method and apparatus are provided for rotation of the reactors, without the necessity of stopping operation of the catalytic conversion process while the shifting of the reactors is being performed. Heat exchangers are provided to control the inlet temperature of effluent provided to downstream reactors. The heat exchangers can occupy fixed process positions or, alternatively, can swing with the reactors in the sequential rotation process.

    摘要翻译: 多反应器烃催化转化系统包括至少三个反应器,用于向反应器提供烃进料的进料源和用于在反应器的过程模式操作期间顺序地向后旋转反应器的装置。 在一系列顺序循环中的每一个中,至少一个反应器当前在再生模式位置操作,而其它反应器在过程模式位置操作。 具有最新催化剂的反应器处于最后的工艺模式位置,并且具有相对较少的新鲜催化剂的反应器处于第一工艺模式位置。 具有相对较少新鲜催化剂的反应器首先从进料源接收新鲜进料,并且具有最新催化剂的反应器最后接收部分转化的进料。 提供了用于使反应器旋转的方法和装置,而不需要在进行反应器移动的同时停止催化转化过程的操作。 提供热交换器来控制提供给下游反应器的流出物的入口温度。 热交换器可以占据固定的过程位置,或者可以在顺序旋转过程中与反应器一起摆动。

    Synthesis process for producing alkylate hydrocarbons
    8.
    发明授权
    Synthesis process for producing alkylate hydrocarbons 失效
    烷基化烃的制备方法

    公开(公告)号:US4634798A

    公开(公告)日:1987-01-06

    申请号:US779369

    申请日:1985-09-23

    摘要: Alkylate is produced by catalytically converting oxygenate feedstock, such as methanol, to lower olefins comprising C.sub.2 -C.sub.4 olefins. Ethene is separated by interstage sorption of C.sub.3 + components and an isoparaffin is alkylated with C.sub.3 -C.sub.4 olefins.The improved technique comprises fractionating an olefinic feedstream containing ethene and C.sub.3 + olefinic components by contacting the olefinic feedstream in a sorption zone with a liquid hydrocarbon sorbent to selectively sorb C.sub.3 + components; reacting C.sub.3 + olefins with excess isoparaffin in a catalytic alkylation reactor to produce C.sub.7 + alkylate hydrocarbons; fractionating the alkylation reactor effluent to provide a liquid hydrocarbon fraction rich in C.sub.4 + isoparaffin for recycle to the sorption zone as lean sorbent; and recovering C.sub.7 + alkylate product from the process.

    摘要翻译: 烷基化物通过将含氧化合物原料如甲醇催化转化成包含C 2 -C 4烯烃的低级烯烃来制备。 乙烯通过C3 +组分的级间吸附分离,异链烷烃用C 3 -C 4烯烃烷基化。 改进的技术包括通过使吸附区中的烯烃进料流与液体烃吸附剂接触以选择性吸附C3 +组分来分馏含有乙烯和C3 +烯烃组分的烯烃进料流; 在催化烷基化反应器中使C3 +烯烃与过量的异链烷烃反应生成C7 +烷基化烃; 分馏烷基化反应器流出物以提供富含C 4 +异链烷烃的液体烃馏分,作为贫吸附剂再循环至吸附区; 并从该过程中回收C7 +烷基化产物。

    Process for converting oxygenates to alkylated liquid hydrocarbons
    9.
    发明授权
    Process for converting oxygenates to alkylated liquid hydrocarbons 失效
    将含氧物转化为烷基化液体烃的方法

    公开(公告)号:US4633028A

    公开(公告)日:1986-12-30

    申请号:US779367

    申请日:1985-09-23

    摘要: Alkylate is produced by catalytically converting oxygenate feedstock, such as methanol, to lower olefins comprising C.sub.2 -C.sub.4 olefins. Ethene is separated by interstage sorption of C.sub.3 + components and an isoparaffin is alkylated with C.sub.3 -C.sub.4 olefins derived from sorbate.The improved technique comprises fractionating an olefinic feedstream containing ethene and C.sub.3 + olefinic components by contacting the olefinic feedstream in a sorption zone with a liquid hydrocarbon sorbent to selectively sorb C.sub.3 + components; reacting C.sub.3 + olefins with excess isoparaffin in a catalytic alkylation reactor to produce C.sub.7 + alkylate hydrocarbons; fractionating the alkylation reactor effluent to provide a liquid hydrocarbon fraction rich in C.sub.7 +, alkylate for recycle to the sorption zone as lean sorbent; and recovering C.sub.7 + alkylate product and C.sub.5 + gasoline from the process.

    摘要翻译: 烷基化物通过将含氧化合物原料如甲醇催化转化成包含C 2 -C 4烯烃的低级烯烃来制备。 乙烯通过C3 +组分的级间吸附分离,异链烷烃用来自山梨酸酯的C3-C4烯烃烷基化。 改进的技术包括通过使吸附区中的烯烃进料流与液体烃吸附剂接触以选择性吸附C3 +组分来分馏含有乙烯和C3 +烯烃组分的烯烃进料流; 在催化烷基化反应器中使C3 +烯烃与过量的异链烷烃反应生成C7 +烷基化烃; 分馏烷基化反应器流出物以提供富含C 7+的烷烃馏分,作为贫吸附剂再循环到吸附区; 并从该过程中回收C7 +烷基化物产物和C5 +汽油。

    Catalytic conversion of olefins to higher hydrocarbons
    10.
    发明授权
    Catalytic conversion of olefins to higher hydrocarbons 失效
    将烯烃催化转化成高级烃

    公开(公告)号:US4456779A

    公开(公告)日:1984-06-26

    申请号:US488834

    申请日:1983-04-26

    摘要: An improved continuous process for converting lower olefinic hydrocarbon feedstock to C.sub.5.sup.+ liquid hydrocarbons by contacting vapor phase olefinic feedstream with acid zeolite catalyst in the presence of recycled diluent stream rich in C.sub.3 -C.sub.4 hydrocarbons in an enclosed reactor at elevated temperature and pressure. The improved technique comprises a system for cooling reactor effluent to recover a heavier hydrocarbon stream containing a mixture of C.sub.3 -C.sub.4 hydrocarbons and C.sub.5.sup.+ hydrocarbons and debutanizing the heavier hydrocarbons below reactor pressure to obtain a C.sub.5.sup.+ product stream and a condensed C.sub.3 -C.sub.4 hydrocarbon stream. Operating efficiencies are realized in the heat exchange system by reboiling the debutanized C.sub.5.sup.+ hydrocarbon product stream with hot reactor effluent, and by recycling and combining at least a portion of the condensed C.sub.3 -C.sub.4 hydrocarbon stream to dilute liquid olefin hydrocarbon feedstock. By increasing pressure on the liquid olefinic hydrocarbon feedstock and liquid recycle stream to at least the elevated reactor pressure in the liquid state prior to vaporization, energy is conserved.

    摘要翻译: 在较高的温度和压力下,在封闭的反应器中,在富含C 3 -C 4烃的再循环稀释剂流存在下,使气相烯烃进料流与酸沸石催化剂接触,从而将低级烯烃原料转化为C5 +液态烃的改进的连续方法。 改进的技术包括用于冷却反应器流出物以回收含有C 3 -C 4烃和C 5+烃的混合物的较重烃流并将重烃低于反应器压力进行脱氨基以获得C5 +产物流和冷凝的C 3 -C 4烃流的系统。 在热交换系统中通过用热反应器流出物重新沸腾脱丁烷的C5 +烃产物流,以及将至少一部分冷凝的C 3 -C 4烃物流再循环并组合以稀释液态烯烃原料来实现运行效率。 通过在液化烯烃原料和液体循环物流之前将液体的压力提高至至少在蒸发之前处于液态的升高的反应器压力,节能。