Method and device for producing dimethyl ether from methanol
    1.
    发明授权
    Method and device for producing dimethyl ether from methanol 有权
    从甲醇生产二甲醚的方法和装置

    公开(公告)号:US08884074B2

    公开(公告)日:2014-11-11

    申请号:US13130611

    申请日:2009-11-19

    IPC分类号: C07C41/09 B01J19/00 B01D3/14

    摘要: A process produces dimethyl ether (DME) from methanol (MeOH). The process includes charging a feed mixture consisting of raw MeOH and a process-internally obtained return flow substantially consisting of unconverted MeOH and reaction water to an MeOH column. The feed mixture is evaporated in the MeOH column to form a first distillate substantially consisting of vaporous MeOH. The first distillate is supplied to a reactor and the MeOH is converted to DME by splitting off water in the reactor so as to form a reaction mixture. The reaction mixture is withdrawn from the reactor, charged to a mixture column and separated into a bottom product substantially consisting of water and a second distillate substantially consisting of DME and MeOH. The second distillate is separated in a DME column into a third distillate substantially consisting of DME, a bottom product consisting essentially of water-poor MeOH, and uncondensable gases discharged overhead. The bottom product is either supplied to a top of the MeOH column or mixed with another bottom product withdrawn from a forerun column.

    摘要翻译: 一种方法由甲醇(MeOH)产生二甲醚(DME)。 该方法包括将由粗MeOH组成的进料混合物和基本上由未转化的MeOH和反应水组成的工艺内部获得的回流装入MeOH柱。 将进料混合物在MeOH柱中蒸发以形成基本上由蒸气MeOH组成的第一馏出物。 将第一馏出物供应到反应器中,并通过在反应器中分离水将MeOH转化为DME,从而形成反应混合物。 将反应混合物从反应器中取出,加入到混合物柱中并分离成基本由水组成的底部产物和基本上由DME和MeOH组成的第二馏出物。 将第二馏出物在DME柱中分离成基本上由DME组成的第三馏出物,DME基本上由无水MeOH组成的底部产物和顶部排出的不可冷凝气体。 将底部产物供应到MeOH柱的顶部或与从先行柱撤出的另一底部产物混合。

    METHOD AND DEVICE FOR PRODUCING DIMETHYL ETHER FROM METHANOL
    2.
    发明申请
    METHOD AND DEVICE FOR PRODUCING DIMETHYL ETHER FROM METHANOL 有权
    用于从甲醇生产二甲醚的方法和装置

    公开(公告)号:US20110295043A1

    公开(公告)日:2011-12-01

    申请号:US13130611

    申请日:2009-11-19

    IPC分类号: C07C41/09 B01J19/00

    摘要: A process produces dimethyl ether (DME) from methanol (MeOH). The process includes charging a feed mixture consisting of raw MeOH and a process-internally obtained return flow substantially consisting of unconverted MeOH and reaction water to an MeOH column. The feed mixture is evaporated in the MeOH column to form a first distillate substantially consisting of vaporous MeOH. The first distillate is supplied to a reactor and the MeOH is converted to DME by splitting off water in the reactor so as to form a reaction mixture. The reaction mixture is withdrawn from the reactor, charged to a mixture column and separated into a bottom product substantially consisting of water and a second distillate substantially consisting of DME and MeOH. The second distillate is separated in a DME column into a third distillate substantially consisting of DME, a bottom product consisting essentially of water-poor MeOH, and uncondensable gases discharged overhead. The bottom product is either supplied to a top of the MeOH column or mixed with another bottom product withdrawn from a forerun column.

    摘要翻译: 一种方法由甲醇(MeOH)产生二甲醚(DME)。 该方法包括将由粗MeOH组成的进料混合物和基本上由未转化的MeOH和反应水组成的工艺内部获得的回流装入MeOH柱。 将进料混合物在MeOH柱中蒸发以形成基本上由蒸气MeOH组成的第一馏出物。 将第一馏出物供应到反应器中,并通过在反应器中分离水将MeOH转化为DME,从而形成反应混合物。 将反应混合物从反应器中取出,加入到混合物柱中并分离成基本由水组成的底部产物和基本上由DME和MeOH组成的第二馏出物。 将第二馏出物在DME柱中分离成基本上由DME组成的第三馏出物,DME基本上由无水MeOH组成的底部产物和顶部排出的不可冷凝气体。 将底部产物供应到MeOH柱的顶部或与从先行柱撤出的另一底部产物混合。

    PROCESS FOR PREPARING C2 TO C4 OLEFINS FROM A FEED STREAM COMPRISING OXYGENATES AND STEAM
    3.
    发明申请
    PROCESS FOR PREPARING C2 TO C4 OLEFINS FROM A FEED STREAM COMPRISING OXYGENATES AND STEAM 有权
    从包含氧化剂和蒸汽的进料流中制备C2至C4烯烃的方法

    公开(公告)号:US20100234655A1

    公开(公告)日:2010-09-16

    申请号:US11909629

    申请日:2006-02-28

    IPC分类号: C07C1/00

    摘要: In a process for the preparation of C2- to C4-olefins, a feed stream comprising oxygenates and steam is passed through at least one fixed-bed zone comprising zeolite catalyst, where the oxygenates are converted catalytically into olefins with high selectivity for lower olefins, and the reaction mixture leaving the fixed-bed zone is separated into a first product stream comprising C2- to C3-olefins and inert gas components, at least one second product stream comprising C4+-olefins, and a third product stream consisting of aqueous phase. In order to improve the yield of lower olefins, the aim is to regulate the temperature of the catalytic reaction in accordance with a target temperature value in the range from 440 to 520° C. specified for the reaction mixture exiting the fixed-bed zone by means of a supplementary stream consisting of olefins and inert gas components fed into the feed stream.

    摘要翻译: 在制备C 2 -C 4烯烃的方法中,包含含氧化合物和蒸汽的进料流通过包含沸石催化剂的至少一个固定床区域,其中含氧化合物被催化转化成烯烃,对低级烯烃具有高选择性, 离开固定床区的反应混合物被分离成包含C 2 -C 3烯烃和惰性气体组分的第一产物流,至少一种包含C4 + - 烯烃的第二产物流和由水相组成的第三产物流。 为了提高低级烯烃的产率,目的是根据对从离开固定床区域的反应混合物规定的目标温度值在440-520℃范围内调节催化反应的温度 由进料流中的烯烃和惰性气体组分组成的辅助料流的方法。

    Process for preparing C2- to C4- olefins from a feed stream comprising oxygenates and steam
    4.
    发明授权
    Process for preparing C2- to C4- olefins from a feed stream comprising oxygenates and steam 有权
    从包含含氧化合物和蒸汽的进料流中制备C 2 -C 4烯烃的方法

    公开(公告)号:US08785708B2

    公开(公告)日:2014-07-22

    申请号:US11909629

    申请日:2006-02-28

    IPC分类号: C07C1/00

    摘要: In a process for the preparation of C2- to C4-olefins, a feed stream comprising oxygenates and steam is passed through at least one fixed-bed zone comprising zeolite catalyst, where the oxygenates are converted catalytically into olefins with high selectivity for lower olefins, and the reaction mixture leaving the fixed-bed zone is separated into a first product stream comprising C2- to C3-olefins and inert gas components, at least one second product stream comprising C4+-olefins, and a third product stream consisting of aqueous phase. In order to improve the yield of lower olefins, the aim is to regulate the temperature of the catalytic reaction in accordance with a target temperature value in the range from 440 to 520° C. specified for the reaction mixture exiting the fixed-bed zone by means of a supplementary stream consisting of olefins and inert gas components fed into the feed stream.

    摘要翻译: 在制备C 2 -C 4烯烃的方法中,包含含氧化合物和蒸汽的进料流通过包含沸石催化剂的至少一个固定床区域,其中含氧化合物以低选择性催化转化为烯烃, 离开固定床区的反应混合物被分离成包含C 2 -C 3烯烃和惰性气体组分的第一产物流,至少一种包含C4 + - 烯烃的第二产物流和由水相组成的第三产物流。 为了提高低级烯烃的产率,目的是根据对从离开固定床区域的反应混合物规定的目标温度值在440-520℃范围内调节催化反应的温度 由进料流中的烯烃和惰性气体组分组成的补充物流的装置。

    Method and device for producing lower olefins from oxygenates
    5.
    发明授权
    Method and device for producing lower olefins from oxygenates 有权
    从含氧化合物生产低级烯烃的方法和装置

    公开(公告)号:US07923591B2

    公开(公告)日:2011-04-12

    申请号:US11718037

    申请日:2005-10-27

    IPC分类号: C07C1/24

    摘要: Method and device for manufacturing at least one low olefin from an oxygenate-containing first reaction mixture (11) through conversion by a catalyst (20) to an olefin and paraffin-containing second reaction mixture (21) where the second reaction mixture (21) is flowed through a separation system (300), in which one at least one low olefin-containing first product stream (31) and at least one paraffin-enriched fraction (321) is extracted and where the remaining product stream (322) is at least partially recirculated to the catalyst (20).

    摘要翻译: 用于通过由催化剂(20)转化成烯烃和含石蜡的第二反应混合物(21)从含氧化合物的第一反应混合物(11)制备至少一种低级烯烃的方法和装置,其中第二反应混合物(21) 流过分离系统(300),其中提取至少一种含低级烯烃的第一产物流(31)和至少一种富含链烷烃的级分(321),其中剩余的产物流(322)处于 最少部分地再循环到催化剂(20)中。

    METHOD AND DEVICE FOR PRODUCING LOWER OLEFINS FROM OXYGENATES
    6.
    发明申请
    METHOD AND DEVICE FOR PRODUCING LOWER OLEFINS FROM OXYGENATES 有权
    用于从氧气中生产较低烯烃的方法和装置

    公开(公告)号:US20090137856A1

    公开(公告)日:2009-05-28

    申请号:US11718037

    申请日:2005-10-27

    IPC分类号: C07C1/24

    摘要: Method and device for manufacturing at least one low olefin from an oxygenate-containing first reaction mixture (11) through conversion by a catalyst (20) to an olefin and paraffin-containing second reaction mixture (21) where the second reaction mixture (21) is flowed through a separation system (300), in which one at least one low olefin-containing first product stream (31) and at least one paraffin-enriched fraction (321) is extracted and where the remaining product stream (322) is at least partially recirculated to the catalyst (20).

    摘要翻译: 用于通过由催化剂(20)转化成烯烃和含石蜡的第二反应混合物(21)从含氧化合物的第一反应混合物(11)制备至少一种低级烯烃的方法和装置,其中第二反应混合物(21) 流过分离系统(300),其中提取至少一种含低级烯烃的第一产物流(31)和至少一种富含链烷烃的级分(321),其中剩余的产物流(322)处于 最少部分地再循环到催化剂(20)中。

    Device for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds
    7.
    发明授权
    Device for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds 有权
    用于从各种烃化合物的混合物中除去含氧有机化合物的装置

    公开(公告)号:US08058498B2

    公开(公告)日:2011-11-15

    申请号:US11718020

    申请日:2004-10-11

    IPC分类号: C07C7/08

    CPC分类号: C07C7/08 C07C7/04

    摘要: Process for removing oxygen-containing organic compounds from mixtures of hydrocarbon compounds, in which a liquid phase (1) containing hydrocarbons and oxygenates is charged to a first column (3), a light fraction is separated as top product (5) by distillation, and that a heavier C4+ fraction is removed from the bottom, the light fraction (5) and a gaseous mixture of hydrocarbons and oxygenates (2) is charged to a second column (7), and separated into a light and a heavy hydrocarbon fraction distillation, and an additional solvent (6) is supplied to the upper part of the second column (7), which dissolves the oxygenates and, the solvent and oxygenates being discharged as bottom product (9) and a hydrocarbon product (8), which is free from oxygenates leaves the top of the column (7). The solvent optionally is wholly or partly regenerated and recirculated to the extractive distillation column.

    摘要翻译: 将含有烃和含氧物的液相(1)装入第一塔(3)的烃化合物的混合物中除去含氧有机化合物的方法,通过蒸馏将轻馏分作为顶部产物(5)分离, 并且从底部除去较重的C4 +馏分,将轻馏分(5)和烃和含氧化合物的气体混合物(2)装入第二塔(7)中,并分离成轻馏分和重质烃馏分 ,并且另外的溶剂(6)被供应到第二塔(7)的上部,其溶解含氧化合物,溶剂和氧化物作为底部产物(9)排出,烃产物(8)是 不含氧合物离开柱的顶部(7)。 溶剂任选地完全或部分再生并再循环到萃取蒸馏塔。

    Device for removing Oxygen-Containing Organic Compounds from Mixtures of Various Hydrocarbon Compounds
    8.
    发明申请
    Device for removing Oxygen-Containing Organic Compounds from Mixtures of Various Hydrocarbon Compounds 有权
    用于从各种烃化合物的混合物中除去含氧有机化合物的装置

    公开(公告)号:US20090223870A1

    公开(公告)日:2009-09-10

    申请号:US11718020

    申请日:2004-10-11

    IPC分类号: C10G7/00

    CPC分类号: C07C7/08 C07C7/04

    摘要: Process for removing oxygen-containing organic compounds from mixtures of hydrocarbon compounds, in which a liquid phase (1) containing hydrocarbons and oxygenates is charged to a first column (3), a light fraction is separated as top product (5) by distillation, and that a heavier C4+ fraction is removed from the bottom, the light fraction (5) and a gaseous mixture of hydrocarbons and oxygenates (2) is charged to a second column (7), and separated into a light and a heavy hydrocarbon fraction distillation, and an additional solvent (6) is supplied to the upper part of the second column (7), which dissolves the oxygenates and, the solvent and oxygenates being discharged as bottom product (9) and a hydrocarbon product (8), which is free from oxygenates leaves the top of the column (7). The solvent optionally is wholly or partly regenerated and recirculated to the extractive distillation column.

    摘要翻译: 将含有烃和含氧物的液相(1)装入第一塔(3)的烃化合物的混合物中除去含氧有机化合物的方法,通过蒸馏将轻馏分作为顶部产物(5)分离, 并且从底部除去较重的C4 +馏分,将轻馏分(5)和烃和含氧化合物的气体混合物(2)装入第二塔(7)中,并分离成轻馏分和重质烃馏分 ,并且另外的溶剂(6)被供应到第二塔(7)的上部,其溶解含氧化合物,溶剂和氧化物作为底部产物(9)排出,烃产物(8)是 不含氧合物离开柱的顶部(7)。 溶剂任选地完全或部分再生并再循环到萃取蒸馏塔。

    Method for producing a product containing C3H6 and C2H4
    10.
    发明授权
    Method for producing a product containing C3H6 and C2H4 有权
    含有C 3 H 6和C 2 H 4的产物的制备方法

    公开(公告)号:US09085500B2

    公开(公告)日:2015-07-21

    申请号:US13139008

    申请日:2009-11-25

    IPC分类号: C07C1/20

    摘要: A process for producing a product containing C3H6 and C2H4 includes simultaneous conversion of MeOH and EtOH in an adiabatic sequentially operated reactor containing a plurality of reaction stages. Each of the plurality of reaction stages of the reactor is provided with a fixed bed of a form-selective catalyst. A gaseous feed stream including MeOH, DME and H2O is charged to at least a first of the reaction stages of the reactor with a temperature in a range of 300 to 600° C. at a pressure in a range of 0.1 to 20 bar[a]. EtOH is fed into at least, one of the reaction stages of the reactor.

    摘要翻译: 用于生产含有C 3 H 6和C 2 H 4的产物的方法包括在包含多个反应级的绝热的顺序操作的反应器中同时转化MeOH和EtOH。 反应器的多个反应阶段中的每一个都具有形式选择催化剂的固定床。 将包含MeOH,DME和H 2 O的气态进料流加入到反应器的至少第一个反应阶段,温度范围为300-600℃,压力范围为0.1-20巴[ ]。 将EtOH加入到反应器的至少一个反应级中。