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    • 3. 发明授权
    • Method for obtaining aromatic hydrocarbons from a hydrocarbon mixture
    • 从烃混合物中获得芳烃的方法
    • US08378164B2
    • 2013-02-19
    • US12680563
    • 2008-09-22
    • Uwe StabelPetra Deckert
    • Uwe StabelPetra Deckert
    • C07C7/08
    • C10G7/08B01D3/40C07C7/08C10G2300/44C10G2400/30C07C15/06C07C15/04C07C15/073C07C15/08
    • Processes for obtaining aromatic hydrocarbons from a hydrocarbon mixture a1. Mixture a1 is extractively distilled with extractive solvent a2 producing mixture bl comprising solvent a2, aromatic hydrocarbons and high boilers, and nonaromatic hydrocarbon mixture b2. Mixture b1 is distilled to aromatic hydrocarbon c1 and solvent comprising high boilers c2. Substream dl is removed from c2 and c2 is recycled to extractive distillation. Substream d1 is extracted with water producing aqueous phase e1 and organic phase e2. Aqueous phase e1 is distilled and purified solvent a2 is recovered and recycled into extractive distillation of mixture b1. Substream e2′ is removed from organic phase e2 and recycled into extractive distillation of mixture b1. The amount of organic phase e2′ is such that when d1 comprising solvent, high boilers, water and circulated stream e2′ is dispersed, aqueous extract phase e1, forms a disperse phase and organic phase e2 a continuous phase.
    • 从烃混合物中获得芳烃的方法a1。 混合物a1用包含溶剂a2,芳烃和高锅炉的萃取溶剂a2生产混合物b1和非芳烃混合物b2进行萃取蒸馏。 将混合物b1蒸馏至芳烃c1和包含高锅炉c2的溶剂。 从c2中除去子流d1,并将c2再循环至萃取蒸馏。 用生产水相e1和有机相e2的水提取子流d1。 蒸馏水相e1,回收纯化的溶剂a2并循环到混合物b1的萃取蒸馏中。 从有机相e2中除去子流e2'并循环到混合物b1的萃取蒸馏中。 有机相e2'的量使得当包含溶剂,高锅炉,水和循环流e2'的d1分散时,含水萃取相e1形成分散相,有机相e2为连续相。
    • 4. 发明申请
    • METHOD FOR OBTAINING AROMATIC HYDROCARBONS FROM A HYDROCARBON MIXTURE
    • 从油气混合物中获取芳香烃的方法
    • US20100228072A1
    • 2010-09-09
    • US12680563
    • 2008-09-22
    • Uwe StabelPetra Deckert
    • Uwe StabelPetra Deckert
    • C07C7/05
    • C10G7/08B01D3/40C07C7/08C10G2300/44C10G2400/30C07C15/06C07C15/04C07C15/073C07C15/08
    • The invention relates to a process for obtaining aromatic hydrocarbons selected from benzene, toluene, xylene and ethylbenzene and mixtures thereof from a hydrocarbon mixture which additionally comprises nonaromatic hydrocarbons and high boilers, comprising the steps of(A) providing a hydrocarbon mixture a1 and an extractive solvent a2 composed of N-formylmorpholine,(B) extractively distilling the hydrocarbon mixture a1 with the extractive solvent to obtain a mixture b1 of extractive solvent and the aromatic hydrocarbons, said mixture comprising high boilers, and a mixture b2 comprising nonaromatic hydrocarbons,(C) distilling the mixture b1 of extractive solvent and aromatic hydrocarbons obtained in step (B) to obtain one or more fractions c1 composed of aromatic hydrocarbons and the extractive solvent c2 which comprises high boilers,(D) removing a substream d1 from the extractive solvent c2 and recycling the extractive solvent c2 into the extractive distillation (B),(E) extracting the substream d1 of the extractive solvent with water to obtain an aqueous extract phase e1 essentially free of high boilers and an organic phase e2 comprising the high boilers,(F) distilling the aqueous extract phase e1 and recovering the extractive solvent a2 in purified form, and recycling the extractive solvent into the extractive distillation (B),wherein a substream e2′ is removed from the organic phase e2 comprising the high boilers and recycled into the extraction of step (E), the amount of the organic phase e2′ thus circulated being such that, when the substream d1 composed of extractive solvent comprising high boilers, water and circulated stream e2′ is dispersed, the aqueous extract phase e1 essentially freed of high boilers forms as a disperse phase, and the organic phase composed of high boilers e2 as a continuous phase.
    • 本发明涉及一种从烃混合物中获得选自苯,甲苯,二甲苯和乙苯的芳香烃及其混合物的方法,该烃混合物还包含非芳族烃和高沸点物,其包括以下步骤:(A)提供烃混合物a1和萃取物 (B)用萃取溶剂萃取出烃混合物a1,得到萃取溶剂和芳香烃的混合物b1,所述混合物包括高沸点物,和包含非芳族烃的混合物(C 蒸馏步骤(B)中获得的萃取溶剂和芳烃的混合物b1,得到一种或多种由芳烃组成的馏分c1和包含高锅炉的萃取溶剂c2,(D)从萃取溶剂c2中除去一个子流d1 并将提取溶剂c2回收到萃取蒸馏(B),(E)提取物中 用水萃取溶剂的底流d1,以获得基本上不含高锅炉的含水萃取相e1和包含高锅炉的有机相e2,(F)蒸馏水萃取相e1并回收纯化形式的萃取溶剂a2 ,并将萃取溶剂回收到萃取蒸馏(B)中,其中从包括高锅炉的有机相e2中除去子流e2'并再循环到步骤(E)的萃取中,因此有机相e2'的量 循环使得当由包括高锅炉,水和循环流e2'的萃取溶剂组成的子流d1分散时,基本上不含高锅炉的水提取相e1形成分散相,由高沸点组成的有机相 e2作为连续相。
    • 5. 发明申请
    • PROCESS FOR DISTILLATIVELY OBTAINING PURE 1, 3-BUTADIENE FROM CRUDE 1, 3-BUTADIENE
    • 从原料1,3-二丁二烯中分离得到纯的1,3-丁二烯的方法
    • US20100126843A1
    • 2010-05-27
    • US12611465
    • 2009-11-03
    • Uwe StabelHarry ZachmannEberhardt GaffronBernd HeidaMichael Jäger
    • Uwe StabelHarry ZachmannEberhardt GaffronBernd HeidaMichael Jäger
    • C07C7/20C07C7/00
    • B01D3/32C07C7/04C07C11/167
    • A process is proposed for distillatively obtaining pure 1,3-butadiene from crude 1,3-butadiene in a plant comprising one or more distillation columns, comprising supply of a feed stream of crude 1,3-butadiene to the one distillation column or the first of the plurality of distillation columns, the one distillation column or the plurality of distillation columns having a flange with an internal diameter of ≧80 mm, comprising two mutually opposite plane-parallel surfaces (1) with an intermediate seal (2) which seals the interior of the one distillation column or of the first of the plurality of distillation columns from an intermediate space (3) on the atmosphere side between the two mutually opposite plane-parallel surfaces (1), and the intermediate space (3) on the atmosphere side between the two mutually opposite plane-parallel surfaces (1) being closed off from the atmosphere to form a chamber, wherein the chamber is purged continuously during the operation of the plant with a low-oxygen gas or a low-oxygen liquid comprising 1% by weight of molecular oxygen or less, based on the total weight of the low-oxygen gas or of the low-oxygen liquid.
    • 提出了一种在包含一个或多个蒸馏塔的设备中从粗制1,3-丁二烯中蒸馏获得纯1,3-丁二烯的方法,其包括将一个粗1,3-丁二烯的进料流供应到一个蒸馏塔或 首先在多个蒸馏塔中,一个蒸馏塔或多个蒸馏塔具有内径≥80mm的凸缘,包括两个相互相对的平面平行表面(1),中间密封件(2)密封 一个蒸馏塔或多个蒸馏塔中的第一个蒸馏塔的内部位于两个彼此相对的平面平行表面(1)之间的空气侧的中间空间(3)和上述中间空间 两个相互相对的平面平行表面(1)之间的空气侧被从大气封闭以形成室,其中在工厂的操作期间连续地吹扫室, 氧气或含有1重量%分子氧或更低的低氧液体,基于低氧气体或低氧气体的总重量。
    • 8. 发明授权
    • Process for distillatively obtaining pure 1,3-butadiene from crude 1,3-butadiene
    • 从粗1,3-丁二烯中蒸馏获得纯1,3-丁二烯的方法
    • US08361280B2
    • 2013-01-29
    • US12611465
    • 2009-11-03
    • Uwe StabelHarry ZachmannEberhardt GaffronBernd HeidaMichael Jäger
    • Uwe StabelHarry ZachmannEberhardt GaffronBernd HeidaMichael Jäger
    • C07C7/04B01D3/00
    • B01D3/32C07C7/04C07C11/167
    • A process is proposed for distillatively obtaining pure 1,3-butadiene from crude 1,3-butadiene in a plant comprising one or more distillation columns, comprising supply of a feed stream of crude 1,3-butadiene to the one distillation column or the first of the plurality of distillation columns, the one distillation column or the plurality of distillation columns having a flange with an internal diameter of ≧80 mm, comprising two mutually opposite plane-parallel surfaces (1) with an intermediate seal (2) which seals the interior of the one distillation column or of the first of the plurality of distillation columns from an intermediate space (3) on the atmosphere side between the two mutually opposite plane-parallel surfaces (1), and the intermediate space (3) on the atmosphere side between the two mutually opposite plane-parallel surfaces (1) being closed off from the atmosphere to form a chamber, wherein the chamber is purged continuously during the operation of the plant with a low-oxygen gas or a low-oxygen liquid comprising 1% by weight of molecular oxygen or less, based on the total weight of the low-oxygen gas or of the low-oxygen liquid.
    • 提出了一种在包含一个或多个蒸馏塔的设备中从粗制1,3-丁二烯中蒸馏获得纯1,3-丁二烯的方法,其包括将一个粗1,3-丁二烯的进料流供应到一个蒸馏塔或 首先在多个蒸馏塔中,一个蒸馏塔或多个蒸馏塔具有内径≥80mm的凸缘,包括两个相互相对的平面平行表面(1),中间密封件(2)密封 一个蒸馏塔或多个蒸馏塔中的第一个蒸馏塔的内部位于两个彼此相对的平面平行表面(1)之间的空气侧的中间空间(3)和上述中间空间 两个相互相对的平面平行表面(1)之间的空气侧被从大气封闭以形成室,其中在工厂的操作期间连续地吹扫室, 氧气或含有1重量%分子氧或更低的低氧液体,基于低氧气体或低氧气体的总重量。