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    • 4. 发明授权
    • Method and device for producing dimethyl ether from methanol
    • 从甲醇生产二甲醚的方法和装置
    • US08884074B2
    • 2014-11-11
    • US13130611
    • 2009-11-19
    • Bernd AhlersGerhard BirkeHarald KoempelHermann BachMartin RothaemelWaldemar LiebnerWalter BollVeronika Gronemann
    • Bernd AhlersGerhard BirkeHarald KoempelHermann BachMartin RothaemelWaldemar LiebnerWalter BollVeronika Gronemann
    • C07C41/09B01J19/00B01D3/14
    • C07C41/09B01D3/143C07C43/043
    • 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 The reaction mixture is withdrawn from the reactor, charged to a mixture column and separated into a bottom product substantially consisting of water and a second distillate substantially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 The bottom product is either supplied to a top of the MeOH column or mixed with another bottom product withdrawn from a forerun column.
    • 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。
    • 6. 发明申请
    • METHOD AND DEVICE FOR PRODUCING DIMETHYL ETHER FROM METHANOL
    • 用于从甲醇生产二甲醚的方法和装置
    • US20110295043A1
    • 2011-12-01
    • US13130611
    • 2009-11-19
    • Bernd AhlersGerhard BirkeHarald KoempelHermann BachMartin RothaemelWaldemar LiebnerWalter BollVeronika Gronemann
    • Bernd AhlersGerhard BirkeHarald KoempelHermann BachMartin RothaemelWaldemar LiebnerWalter BollVeronika Gronemann
    • C07C41/09B01J19/00
    • C07C41/09B01D3/143C07C43/043
    • 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.
    • 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。
    • 7. 发明申请
    • MANUFACTURE OF DIMETHYL ETHER FROM CRUDE METHANOL
    • 二甲醚从甲醇制备
    • US20120220804A1
    • 2012-08-30
    • US13509832
    • 2010-10-25
    • Peter MitschkeEckhard SeidelThomas RennerMartin Rothaemel
    • Peter MitschkeEckhard SeidelThomas RennerMartin Rothaemel
    • C07C41/09B01J19/00C07C31/04
    • C07C41/09C07C43/04
    • A method of producing dimethyl ether by catalytic dehydration of crude methanol as feedstock in the gas phase includes providing the crude methanol from methanol synthesis, where the crude methanol having a total content of carbonyl compounds of not more than 100 wt-ppm, calculated, as mass equivalents of acetone. The crude methanol is evaporated, and the reaction temperature and reaction pressure are adjusted. A reactor filled with dehydration catalyst is charged with the evaporated crude methanol with a defined space velocity. A gaseous product mixture comprising dimethyl ether, non-reacted methanol and water is discharged. Cooling, partial condensation and separation of the gaseous product mixture are carried out so as to provide gaseous dimethyl ether, liquid water and methanol as products, and the methanol is recirculated.
    • 通过在气相中作为原料的粗甲醇的催化脱水生产二甲醚的方法包括从甲醇合成中提供粗甲醇,其中羰基化合物的总含量不超过100重量ppm的粗甲醇计算为 丙酮的质量当量。 将粗甲醇蒸发,并调节反应温度和反应压力。 装有脱水催化剂的反应器以确定的空间速度装入蒸发的粗甲醇。 排出包含二甲醚,未反应的甲醇和水的气态产物混合物。 进行气态产物混合物的冷却,部分冷凝和分离,以提供气态的二甲醚,液态水和甲醇作为产物,甲醇被再循环。
    • 8. 发明授权
    • Process and plant for producing C2-C4 olefins from methanol and/or dimethyl ether with increased yield
    • 从甲醇和/或二甲醚生产C2-C4烯烃的方法和装置,产率提高
    • US09359272B2
    • 2016-06-07
    • US11993714
    • 2006-06-23
    • Martin RothaemelUwe FinckThomas RennerHenning Buchold
    • Martin RothaemelUwe FinckThomas RennerHenning Buchold
    • C07C1/20C07C4/06
    • C07C1/20C07C4/06Y02P30/42C07C11/02
    • A process and a plant for producing C2-C4 olefins, in particular propylene, from an educt mixture containing steam as well as methanol vapor and/or dimethyl ether vapor. The educt mixture is reacted in at least one first reactor on a granular, form-selective zeolite catalyst to obtain a reaction mixture including low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in C2-C4 olefins, a mixture rich in C5+ gasoline hydrocarbons, and an aqueous phase, wherein the mixture rich in gasoline hydrocarbons is mixed with an inert medium, the mixture thus obtained is reacted in at least one second reactor on a granular zeolite catalyst to obtain a product mixture including C2-C4 olefins, and this product mixture is recirculated to the first separating device, and wherein the mixture rich in C5+ gasoline hydrocarbons is separated in a second separating device into a product stream containing C5-C6 hydrocarbons and a product stream containing C7+ hydrocarbons, before being supplied to the second reactor, and only the product stream containing C7+ hydrocarbons is supplied to the second reactor, whereas the product stream containing C5-C6 hydrocarbons together with the educt mixture is supplied to the at least one first reactor.
    • 一种用于由含有蒸汽以及甲醇蒸汽和/或二甲醚蒸气的离析混合物生产C 2 -C 4烯烃,特别是丙烯的方法和设备。 在颗粒形式选择性沸石催化剂上的至少一个第一反应器中使该离子混合物反应,得到包含低分子烯烃和汽油烃的反应混合物,其在第一分离装置中分离成富含C 2 -C 4 烯烃,富含C5 +汽油烃的混合物和水相,其中将富含汽油烃的混合物与惰性介质混合,由此得到的混合物在至少一个第二反应器中在颗粒状沸石催化剂上反应,得到产物 混合物包括C 2 -C 4烯烃,并将该产物混合物再循环到第一分离装置,并且其中富含C5 +汽油烃的混合物在第二分离装置中分离成含有C 5 -C 6烃的产物流和含有C 7+ 烃,然后供应到第二反应器,并且仅将含有C7 +烃的产物流供应到第二反应器 将包含C5-C6烃与产物混合物的产物流一起供应至至少一个第一反应器。
    • 9. 发明申请
    • PROCESS AND PLANT FOR PRODUCING C2-C4 OLEFINS FROM METHANOL AND/OR DIMETHYL ETHER WITH INCREASED YIELD
    • 从甲醇和/或二甲醚生产C2-C4烯烃的工艺和工厂,具有增加的产量
    • US20110319686A1
    • 2011-12-29
    • US11993714
    • 2006-06-23
    • Martin RothaemelUwe FinckThomas RennerHenning Buchold
    • Martin RothaemelUwe FinckThomas RennerHenning Buchold
    • C07C1/20B01J14/00C07C4/00
    • C07C1/20C07C4/06Y02P30/42C07C11/02
    • A process and a plant for producing C2-C4 olefins, in particular propylene, from an educt mixture containing steam as well as methanol vapor and/or dimethyl ether vapor. The educt mixture is reacted in at least one first reactor on a granular, form-selective zeolite catalyst to obtain a reaction mixture including low-molecular olefins and gasoline hydrocarbons, which in a first separating device is separated into a mixture rich in C2-C4 olefins, a mixture rich in C5+ gasoline hydrocarbons, and an aqueous phase, wherein the mixture rich in gasoline hydrocarbons is mixed with an inert medium, the mixture thus obtained is reacted in at least one second reactor on a granular zeolite catalyst to obtain a product mixture including C2-C4 olefins, and this product mixture is recirculated to the first separating device, and wherein the mixture rich in C5+ gasoline hydrocarbons is separated in a second separating device into a product stream containing C5-C6 hydrocarbons and a product stream containing C7+ hydrocarbons, before being supplied to the second reactor, and only the product stream containing C7+ hydrocarbons is supplied to the second reactor, whereas the product stream containing C5-C6 hydrocarbons together with the educt mixture is supplied to the at least one first reactor.
    • 一种用于由含有蒸汽以及甲醇蒸汽和/或二甲醚蒸气的离析混合物生产C 2 -C 4烯烃,特别是丙烯的方法和设备。 在颗粒形式选择性沸石催化剂上的至少一个第一反应器中使该离子混合物反应,得到包含低分子烯烃和汽油烃的反应混合物,其在第一分离装置中分离成富含C 2 -C 4 烯烃,富含C5 +汽油烃的混合物和水相,其中将富含汽油烃的混合物与惰性介质混合,将所得混合物在至少一个第二反应器中在颗粒状沸石催化剂上反应,得到产物 混合物包括C 2 -C 4烯烃,并将该产物混合物再循环到第一分离装置,并且其中富含C5 +汽油烃的混合物在第二分离装置中分离成含有C 5 -C 6烃的产物流和含有C 7+ 烃,然后供应到第二反应器,并且仅将含有C7 +烃的产物流供应到第二反应器 将包含C5-C6烃与产物混合物的产物流一起供应至至少一个第一反应器。