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    PROCESS FOR PREPARING ISOPROPANOL AND 2-BUTANOL FROM THE CORRESPONDING ALKANES
    1.
    发明申请
    PROCESS FOR PREPARING ISOPROPANOL AND 2-BUTANOL FROM THE CORRESPONDING ALKANES 失效
    从相应的碱中制备异丙醇和2-丁醇的方法

    公开(公告)号：US20100048960A1

    公开(公告)日：2010-02-25

    申请号：US12374351

    申请日：2007-07-16

    申请人： Georg Degen ,  Sven Crone ,  Ralf Boehling ,  Ansgar Gereon Altenhoff ,  Wolfgang Rohde ,  Jochen Buerkle ,  Goetz-Peter Schindler ,  Thomas Holtmann ,  Markus Schmitt

    发明人： Georg Degen ,  Sven Crone ,  Ralf Boehling ,  Ansgar Gereon Altenhoff ,  Wolfgang Rohde ,  Jochen Buerkle ,  Goetz-Peter Schindler ,  Thomas Holtmann ,  Markus Schmitt

    IPC分类号： C07C29/04

    CPC分类号： C07C67/04 ,  C07C29/095 ,  Y02P20/127 ,  C07C31/10 ,  C07C31/12 ,  C07C69/06 ,  C07C69/14

    摘要： A process for preparing alkanols (I) selected from the group consisting of isopropanol and 2-butanol from the corresponding alkanes (II) selected from the group consisting of propane and n-butane, comprising the steps of: A) providing a starting gas stream a comprising the alkane (II); B) feeding the starting gas stream a comprising the alkane (II) into a dehydrogenation zone and subjecting the alkane (II) to a dehydrogenation to the alkene (III) to obtain a product gas stream b comprising the alkene (III) and unconverted alkane (II), with or without high boilers, steam, hydrogen and low boilers; C) at least compressing product gas stream b, optionally separating product gas stream b into an aqueous phase c1, a phase c2 comprising the alkene (III) and the alkane (II), with or without high boilers, and a gas phase c3 comprising hydrogen and low boilers; D) reacting product gas stream b or the phase c2 comprising alkene (III) and alkane (II) with an organic acid (IV) in an esterification zone to obtain a product mixture d comprising the corresponding alkyl ester (V) of the organic acid and the unconverted alkane (II); E) removing from product mixture d a gas stream e1 which comprises an alkane (II) and is recycled into the dehydrogenation zone if appropriate, and a product mixture e2 comprising the alkyl ester; F) reacting the product mixture e2 comprising the alkyl ester with water in an ester hydrolysis zone to give a product mixture f comprising the alkanol (I) and the organic acid (IV); G) removing the alkanol (I) and the organic acid (IV) from product mixture f and, if appropriate, recycling the organic acid into the esterification zone.

    摘要翻译： 从选自丙烷和正丁烷的相应的烷烃（II）制备选自异丙醇和2-丁醇的链烷醇（I）的方法，包括以下步骤：A）提供起始气流 a包含烷烃（II）; B）将包含烷烃（II）的起始气体流（a）进料到脱氢区中并使烷烃（II）脱氢至烯烃（III），得到包含烯烃（III）和未转化烷烃的产物气流b （II），有或没有高锅炉，蒸汽，氢气和低锅炉; C）至少压缩产物气流b，任选地将产物气流b分离成水相c1，包含烯烃（III）和烷烃（II）的阶段c2，具有或不具有高锅炉，以及气相c3，其包含 氢和低锅炉; D）使产物气流b或包含烯烃（III）和烷烃（II）的相c与酯化区中的有机酸（IV）反应，得到包含相应的有机酸烷基酯（V）的产物混合物d 和未转化的烷烃（II）; E）从产物混合物d除去包含烷烃（II）的气流e1，并且如果合适的话再循环到脱氢区中，以及包含烷基酯的产物混合物e2; F）在酯水解区中使包含烷基酯的产物混合物e2与水反应，得到包含链烷醇（I）和有机酸（IV）的产物混合物f; G）从产物混合物f中除去链烷醇（I）和有机酸（IV），如果合适，将有机酸再循环到酯化区。

    Method for the production of butadiene
    3.
    发明授权
    Method for the production of butadiene 有权
    生产丁二烯的方法

    公开(公告)号：US07488858B2

    公开(公告)日：2009-02-10

    申请号：US10584785

    申请日：2004-12-30

    申请人： Thorsten Johann ,  Götz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Mark Duda

    发明人： Thorsten Johann ,  Götz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Mark Duda

    IPC分类号： C07C5/333

    CPC分类号： C07C5/333 ,  C07C5/48 ,  C07C11/167

    摘要： The disclosure involves a process for preparing butadiene from n-butane. In the process, n-butane is first dehydrogenated autothermally under nonoxidative conditions to form a gas stream. The gas stream is then oxidatively dehydrogenated to form a second gas stream. From the second gas stream, a third gas stream containing n-butane, 2-butene and butadiene is obtained. From the third gas stream, a butadiene/butaine product stream is obtained and remaining n-butane and 2-butene is recycled into the first dehydrogenation zone.

    摘要翻译： 本公开涉及从正丁烷制备丁二烯的方法。 在此过程中，正丁烷首先在非氧化条件下自热脱氢形成气流。 然后将气流氧化脱氢以形成第二气流。 从第二气流中获得含有正丁烷，2-丁烯和丁二烯的第三气流。 从第三气流中获得丁二烯/丁内酯产物流，并将剩余的正丁烷和2-丁烯再循环到第一脱氢区中。

    Method for the Production of Propene from Propane
    4.
    发明申请
    Method for the Production of Propene from Propane 审中-公开
    丙烷生产丙烯的方法

    公开(公告)号：US20080221374A1

    公开(公告)日：2008-09-11

    申请号：US11813360

    申请日：2006-01-04

    申请人： Sven Crone ,  Otto Machhammer ,  Gotz-Peter Schindler ,  Frieder Borgmeier

    发明人： Sven Crone ,  Otto Machhammer ,  Gotz-Peter Schindler ,  Frieder Borgmeier

    IPC分类号： C07C5/02

    CPC分类号： C07C5/3337 ,  C07C7/11 ,  C07C11/06

    摘要： A process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the fed gas stream a comprising propane, if appropriate steam and, if appropriate, an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, carbon monoxide, carbon dioxide, steam, if appropriate hydrogen and, if appropriate, oxygen; C) product gas stream b is cooled, if appropriate condensed and steam is removed by condensation to obtain a steam-depleted product gas stream c; D) product gas stream c is contacted in a first absorption zone with a selective, inert absorbent which selectively absorbs propene to obtain an absorbent stream d1 laden substantially with propene and a gas stream d2 comprising propane, methane, ethane, ethene, carbon monoxide, carbon dioxide and hydrogen; E) if appropriate, the absorbent stream d1 is decompressed to a lower pressure in a first desorption zone to obtain an absorbent stream e1 laden substantially with propene and a gas stream e2 comprising propene, and gas stream e2 is recycled into the first absorption zone, F) from the absorbent stream d1 or e1 laden substantially with propene, in at least one second desorption zone, by decompression, heating and/or stripping the absorbent stream d1 or e1, a gas stream f1 comprising propene is released and the selective absorbent is recovered.

    摘要翻译： 一种从丙烷制备丙烯的方法，包括以下步骤：A）提供包含丙烷的进料气流a; B）包含丙烷的进料气流a（如果合适的话）蒸汽，如果合适的话，将含氧气流送入脱氢区，然后使丙烷脱氢至丙烯，得到包含丙烷，丙烯，甲烷的产物气流b 乙烷，乙烯，一氧化碳，二氧化碳，蒸汽，如果合适的话，以及适当的话，氧气; C）产物气流b被冷却，如果合适的话冷凝和蒸汽通过冷凝除去，得到蒸汽消耗产物气流c; D）产物气流c在第一吸收区域与选择性吸收丙烯的选择性惰性吸收剂接触，从而获得基本上与丙烯一起填充的吸收剂流d1和包含丙烷，甲烷，乙烷，乙烯，一氧化碳， 二氧化碳和氢气; E）如果合适，在第一解吸区中将吸收剂流d1减压至较低的压力，以获得基本上与丙烯和包含丙烯的气流e2并且气流e2再循环到第一吸收区中的吸收剂流e1， F）通过减压，加热和/或汽提吸收剂流d1或e1，从至少一个第二解吸区中基本上与丙烯充分接触的吸收剂流d1或e1，释放包含丙烯的气流f1，并且选择性吸附剂 恢复。

    Method for the production of butadiene
    5.
    发明申请
    Method for the production of butadiene 有权
    生产丁二烯的方法

    公开(公告)号：US20070167661A1

    公开(公告)日：2007-07-19

    申请号：US10584758

    申请日：2004-12-30

    申请人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Thomas Hill ,  Mark Duda

    发明人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Thomas Hill ,  Mark Duda

    IPC分类号： C07C5/327

    CPC分类号： C07C5/333 ,  C07C5/48 ,  C07C11/167

    摘要： The invention relates to a process for preparing butadiene from n-butane having the steps of A) providing a feed gas stream a comprising n-butane; B) feeding the feed gas stream a comprising n-butane into at least one first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to obtain a product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and in some cases steam; C) feeding the product gas stream b of the nonoxidative catalytic dehydrogenation and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to obtain a product gas stream c comprising n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and steam, said product gas stream c having a higher content of butadiene than the product gas stream b; D) removing hydrogen, the low-boiling secondary constituents and steam to obtain a C4 product gas stream d substantially consisting of n-butane, 2-butene and butadiene; E) separating the C4 product gas stream d into a recycle stream e1 consisting substantially of n-butane and 2-butene and a stream e2 consisting substantially of butadiene by extractively distilling and recycling the stream e1 into the first dehydrogenation zone; F) if desired, feeding some or all of the stream e2 consisting substantially of butadiene into a selective hydrogenation zone and selectively hydrogenating butadiene to 1- and/or 2-butene to obtain a stream f comprising 1-butene and 2-butene; G) if desired, feeding the stream f comprising 1-butene and 2-butene into a distillation zone and removing a product of value stream g1 consisting substantially of 1-butene to leave a stream g2 comprising 2-butene; H) if desired, recycling the stream g2 comprising 2-butene into the first dehydrogenation zone.

    摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：A）提供包含正丁烷的进料气流a; B）将包含正丁烷的进料气流（a）进料到至少一个第一脱氢区和非氧化催化脱氢的正丁烷中，以获得包含正丁烷，1-丁烯，2-丁烯，丁二烯，氢， 低沸点次生成分，有时还有蒸汽; C）将非氧化催化脱氢的产物气流b和氧气输送到至少一个第二脱氢区，并使1-丁烯和2-丁烯氧化脱氢得到包含正丁烷，2-丁烯， 丁二烯，氢，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; D）除去氢气，低沸点次级组分和蒸汽，得到基本上由正丁烷，2-丁烯和丁二烯组成的C 4 H 4产物气流d; E）将C 4 H 4产物气流d分离成基本上由正丁烷和2-丁烯组成的循环流e1和基本上由丁二烯组成的物流e2，通过萃取蒸馏并将流e1再循环到 第一个脱氢区; F）如果需要，将基本上由丁二烯组成的一些或全部流e2加入到选择性氢化区中，并将丁二烯选择性氢化为1-和/或2-丁烯，以获得包含1-丁烯和2-丁烯的料流f; 如果需要，将包含1-丁烯和2-丁烯的料流f加入到蒸馏区中并除去基本上由1-丁烯组成的物流g1的产物以留下包含2-丁烯的料流g2; H）如果需要，将包含2-丁烯的料流g2再循环到第一脱氢区中。

    Method for the production of butadiene and 1-butene
    6.
    发明申请
    Method for the production of butadiene and 1-butene 有权
    制备丁二烯和1-丁烯的方法

    公开(公告)号：US20070161842A1

    公开(公告)日：2007-07-12

    申请号：US10584783

    申请日：2004-12-30

    申请人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Marcus Sigl ,  Mark Duda

    发明人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Marcus Sigl ,  Mark Duda

    IPC分类号： C07C5/327 ,  C07C1/00

    CPC分类号： C07C5/327 ,  C07C5/333 ,  C07C5/48 ,  C07C11/167

    摘要： The invention relates to a process for preparing butadiene from n-butane having the steps of A) providing a feed gas stream a comprising n-butane; B) feeding the feed gas stream a comprising n-butane into at least one first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to obtain a product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and in some cases steam; C) feeding the product gas stream b of the nonoxidative catalytic dehydrogenation and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating n-butane, 1-butene and 2-butene to obtain a product gas stream c comprising n-butane, 2-butene, butadiene, low-boiling secondary constituents and steam, said product gas stream c having a higher content of butadiene than the product gas stream b; D) removing the low-boiling secondary constituents and steam to obtain a C4 product gas stream d substantially consisting of n-butane, 2-butene and butadiene; E) separating the C4 product gas stream d into a stream e1 consisting substantially of n-butane and 2-butene and a product of value stream e2 consisting substantially of butadiene by extractive distillation; F) feeding the stream e1 consisting substantially of n-butane and 2-butene and a cycle stream g comprising 1-butene and 2-butene into a distillation zone and separating into a 1-butene-rich product of value stream f1, a recycle stream f2 comprising 2-butene and n-butane and a stream f3 comprising 2-butene, and recycling the recycle stream f2 into the first dehydrogenation zone; G) feeding the stream f3 comprising 2-butene into an isomerization zone and isomerizing 2-butene to 1-butene to obtain a cycle stream g comprising 1-butene and 2-butene, and recycling the cycle gas stream g into the distillation zone.

    摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：A）提供包含正丁烷的进料气流a; B）将包含正丁烷的进料气流（a）进料到至少一个第一脱氢区和非氧化催化脱氢的正丁烷中，以获得包含正丁烷，1-丁烯，2-丁烯，丁二烯，氢， 低沸点次生成分，有时还有蒸汽; C）将非氧化催化脱氢的产物气流b和氧气输送到至少一个第二脱氢区，并使正丁烷，1-丁烯和2-丁烯氧化脱氢得到包含正丁烷的产物气流c， 丁二烯，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; D）除去低沸点二次成分和蒸汽，得到基本上由正丁烷，2-丁烯和丁二烯组成的C 4 H 4产物气流d; E）将C 4 H 4产物气流d分离成基本上由正丁烷和2-丁烯组成的物流e1和通过萃取蒸馏基本上由丁二烯组成的价值流e2的产物; F）将基本上由正丁烷和2-丁烯组成的流e1和包含1-丁烯和2-丁烯的循环流g加入到蒸馏区中并分离成价值流f1的富含1-丁烯的产物，再循环 包含2-丁烯和正丁烷的料流f2和包含2-丁烯的料流f3，并将再循环料流f2再循环到第一脱氢区中; G）将包含2-丁烯的料流f3进料到异构化区并将2-丁烯异构化成1-丁烯，得到包含1-丁烯和2-丁烯的循环流g，并将循环气流g再循环到蒸馏区中。

    Process for preparing isopropanol and 2-butanol from the corresponding alkanes
    8.
    发明授权
    Process for preparing isopropanol and 2-butanol from the corresponding alkanes 失效
    从相应的烷烃制备异丙醇和2-丁醇的方法

    公开(公告)号：US07750194B2

    公开(公告)日：2010-07-06

    申请号：US12374351

    申请日：2007-07-16

    申请人： Georg Degen ,  Sven Crone ,  Ralf Boehling ,  Ansgar Gereon Altenhoff ,  Wolfgang Rohde ,  Jochen Buerkle ,  Goetz-Peter Schindler ,  Thomas Holtmann ,  Markus Schmitt

    发明人： Georg Degen ,  Sven Crone ,  Ralf Boehling ,  Ansgar Gereon Altenhoff ,  Wolfgang Rohde ,  Jochen Buerkle ,  Goetz-Peter Schindler ,  Thomas Holtmann ,  Markus Schmitt

    IPC分类号： C07C29/09

    CPC分类号： C07C67/04 ,  C07C29/095 ,  Y02P20/127 ,  C07C31/10 ,  C07C31/12 ,  C07C69/06 ,  C07C69/14

    摘要： A process for preparing alkanols (I) selected from the group consisting of isopropanol and 2-butanol from the corresponding alkanes (II) selected from the group consisting of propane and n-butane, comprising the steps of: A) providing a starting gas stream a comprising the alkane (II); B) feeding the starting gas stream a comprising the alkane (II) into a dehydrogenation zone and subjecting the alkane (II) to a dehydrogenation to the alkene (III) to obtain a product gas stream b comprising the alkene (III) and unconverted alkane (II), with or without high boilers, steam, hydrogen and low boilers; C) at least compressing product gas stream b, optionally separating product gas stream b into an aqueous phase c1, a phase c2 comprising the alkene (III) and the alkane (II), with or without high boilers, and a gas phase c3 comprising hydrogen and low boilers; D) reacting product gas stream b or the phase c2 comprising alkene (III) and alkane (II) with an organic acid (IV) in an esterification zone to obtain a product mixture d comprising the corresponding alkyl ester (V) of the organic acid and the unconverted alkane (II); E) removing from product mixture d a gas stream e1 which comprises an alkane (II) and is recycled into the dehydrogenation zone if appropriate, and a product mixture e2 comprising the alkyl ester; F) reacting the product mixture e2 comprising the alkyl ester with water in an ester hydrolysis zone to give a product mixture f comprising the alkanol (I) and the organic acid (IV); G) removing the alkanol (I) and the organic acid (IV) from product mixture f and, if appropriate, recycling the organic acid into the esterification zone.

    摘要翻译： 从选自丙烷和正丁烷的相应的烷烃（II）制备选自异丙醇和2-丁醇的链烷醇（I）的方法，包括以下步骤：A）提供起始气流 a包含烷烃（II）; B）将包含烷烃（II）的起始气体流（a）进料到脱氢区中并使烷烃（II）脱氢至烯烃（III），得到包含烯烃（III）和未转化烷烃的产物气流b （II），有或没有高锅炉，蒸汽，氢气和低锅炉; C）至少压缩产物气流b，任选地将产物气流b分离成水相c1，包含烯烃（III）和烷烃（II）的阶段c2，具有或不具有高锅炉，以及气相c3，其包含 氢和低锅炉; D）使产物气流b或包含烯烃（III）和烷烃（II）的相c与酯化区中的有机酸（IV）反应，得到包含相应的有机酸烷基酯（V）的产物混合物d 和未转化的烷烃（II）; E）从产物混合物d除去包含烷烃（II）的气流e1，并且如果合适的话再循环到脱氢区中，以及包含烷基酯的产物混合物e2; F）在酯水解区中使包含烷基酯的产物混合物e2与水反应，得到包含链烷醇（I）和有机酸（IV）的产物混合物f; G）从产物混合物f中除去链烷醇（I）和有机酸（IV），如果合适，将有机酸再循环到酯化区。

    Method and Device for Completely Hydrogenating a Hydrocarbon Flow
    9.
    发明申请
    Method and Device for Completely Hydrogenating a Hydrocarbon Flow 审中-公开
    完全氢化烃流的方法和装置

    公开(公告)号：US20080281140A1

    公开(公告)日：2008-11-13

    申请号：US11719726

    申请日：2005-11-16

    申请人： Falk Simon ,  Sven Crone ,  Goetz-Peter Schindler ,  Peter Matthias Fritz ,  Heinz Boelt

    发明人： Falk Simon ,  Sven Crone ,  Goetz-Peter Schindler ,  Peter Matthias Fritz ,  Heinz Boelt

    IPC分类号： C07C327/00 ,  B01J19/00

    CPC分类号： B01J8/02 ,  B01J19/0026 ,  B01J2208/00707 ,  B01J2219/00006 ,  C07C5/333 ,  C07C9/00

    摘要： The invention provides a process for hydrogenating streams in plants for producing alkenes by catalytic dehydrogenation of light alkanes, and also an apparatus for carrying out the process. The entire hydrocarbon stream to the dehydrogenation reactor, consisting of fresh and recycled alkane, is subjected upstream of the dehydrogenation reactor to a full hydrogenation of all unsaturated hydrocarbons present therein. This drastically reduces coke formation in the dehydrogenation reactor. The energy demand for the preheating of the reactant stream to reaction temperature is reduced since the energy released in the exothermic hydrogenation remains virtually fully in the hydrocarbon stream.

    摘要翻译： 本发明提供了一种通过轻质烷烃的催化脱氢对植物中的物流进行氢化生产烯烃的方法，以及用于进行该方法的装置。 通过新鲜和再循环的烷烃组成的脱氢反应器的整个烃流在脱氢反应器的上游进行到其中存在的所有不饱和烃的完全氢化。 这大大降低了脱氢反应器中的焦炭形成。 将反应物流预热的能量需求降低到反应温度，因为在放热加氢中释放的能量几乎完全保留在烃流中。

    Method for the production of butadine from n-butane
    10.
    发明授权
    Method for the production of butadine from n-butane 有权
    从正丁烷生产丁二烯的方法

    公开(公告)号：US07435860B2

    公开(公告)日：2008-10-14

    申请号：US11721240

    申请日：2005-12-07

    申请人： Sven Crone ,  Catharina Klanner ,  Götz-Peter Schindler ,  Mark Duda ,  Frieder Borgmeier

    发明人： Sven Crone ,  Catharina Klanner ,  Götz-Peter Schindler ,  Mark Duda ,  Frieder Borgmeier

    IPC分类号： C07C5/333

    CPC分类号： C07C11/167 ,  C07C5/48

    摘要： A process for preparing butadiene, comprising nonoxidatively dehydrogenating n-butane from a stream (a) in a first dehydrogenation zone to obtain stream (b) comprising 1-butene and 2-butene; oxidatively dehydrogenating the 1-butene and 2-butene of (b) in the presence of an oxygenous gas in a second dehydrogenation zone to obtain stream (c) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; compressing and cooling (c) to obtain stream (d2) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; extractively distilling (d2) into stream (e1) comprising butadiene and stream (e2) comprising n-butane, hydrogen, carbon dioxide, and steam; compressing and cooling (e2) to obtain stream (f1) comprising n-butane and water and stream (f2) comprising n-butane, hydrogen, and carbon dioxide; cooling (f2) to obtain stream (g1) comprising n-butane and stream (g2) comprising carbon dioxide and hydrogen; phase separating water from (f1) to obtain stream (h1) comprising n-butane; and recycling (h1) into the first dehydrogenation zone.

    摘要翻译： 一种制备丁二烯的方法，包括在第一脱氢区中从流（a）中非氧化脱氢的正丁烷获得包含1-丁烯和2-丁烯的料流（b） 在第二脱氢区中在有氧气体存在下使（b）的1-丁烯和2-丁烯氧化脱氢以得到包含正丁烷，丁二烯，氢，二氧化碳和蒸汽的流（c） 压缩并冷却（c）以获得包含正丁烷，丁二烯，氢气，二氧化碳和蒸汽的流（d2）; 将包含丁二烯的流（e1）和包含正丁烷，氢气，二氧化碳和蒸汽的物流（e2）萃取蒸馏（d2） 压缩和冷却（e2）以获得包含正丁烷和水的流（f1）和包含正丁烷，氢气和二氧化碳的物流（f2）; 冷却（f2）以获得包含正丁烷的流（g1）和包含二氧化碳和氢气的流（g2）; 将（f1）的水相分离以获得包含正丁烷的流（h1）; 和再循环（h1）进入第一个脱氢区。