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    Method for the Production of Propene from Propane
    8.
    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：US20090240094A1

    公开(公告)日：2009-09-24

    申请号：US11721247

    申请日：2005-12-08

    申请人： Sven Crone ,  Otto Machhammer ,  Götz-Peter Schindler

    发明人： Sven Crone ,  Otto Machhammer ,  Götz-Peter Schindler

    IPC分类号： C07C5/327

    CPC分类号： C07C5/3337 ,  C07C7/04 ,  C07C11/06

    摘要： The invention relates to a process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the feed gas stream a comprising propane and an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a nonoxidative catalytic, autothermal dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, C4+ hydrocarbons, carbon monoxide, carbon dioxide, steam and hydrogen, C) the product gas stream b is cooled and steam is removed by condensation to obtain a steam-depleted product gas stream c, D) carbon dioxide is removed by gas scrubbing to obtain a carbon dioxide-depleted product gas stream d, E) the product gas stream d is cooled and a liquid hydrocarbon stream e1 comprising propane, propene, methane, ethane, ethene and C4+ hydrocarbons is removed by condensation to leave a residual gas stream e2 comprising methane, hydrogen and carbon monoxide, F) the liquid hydrocarbon stream e1 is fed into a first distillation zone and separated distillatively into a stream f1 comprising propane, propene and the C4+ hydrocarbons and a stream f2 comprising ethane and ethene, G) the stream f1 is fed into a second distillation zone and separated distillatively into a product stream g1 comprising propene and a stream g2 comprising propane and the C4+ hydrocarbons.

    摘要翻译： 本发明涉及一种从丙烷制备丙烯的方法，包括以下步骤：A）提供包含丙烷的原料气流a; B）将包含丙烷和含氧气流的进料气流a进料到脱氢区中，并将丙烷进行非氧化催化，自热脱氢至丙烯以获得包含丙烷，丙烯，甲烷，乙烷，乙烯的产物气流b ，C 4 +烃，一氧化碳，二氧化碳，蒸汽和氢气，C）产物气流b被冷却并通过冷凝除去蒸汽以获得蒸汽消耗产物气流c，D）通过气体洗涤除去二氧化碳 获得贫二氧化碳产物气流d，E）产物气流d被冷却，通过冷凝除去包含丙烷，丙烯，甲烷，乙烷，乙烯和C 4 +烃的液体烃流e1，以留下残余气流e2 包括甲烷，氢气和一氧化碳，F）将液体烃流e1进料到第一蒸馏区并蒸馏分离成包含丙烷，丙烯和 C4 +烃和包含乙烷和乙烯的物流F2），将物流f1进料到第二蒸馏区，并蒸馏分离成包含丙烯的产物流g1和包含丙烷和C4 +烃的料流g2。

    Method for Producing Propene From Propane
    9.
    发明申请
    Method for Producing Propene From Propane 审中-公开
    从丙烷生产丙烯的方法

    公开(公告)号：US20080269536A1

    公开(公告)日：2008-10-30

    申请号：US11817599

    申请日：2006-03-03

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

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

    IPC分类号： C07C5/48

    CPC分类号： C07C5/327 ,  C07C5/48 ,  C07C11/06

    摘要： The invention relates to a process for preparing propene from propane, comprising the steps:A) a feed gas stream a comprising propane is provided;B) the feed gas stream a comprising propane, if appropriate steam and if appropriate and 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, nitrogen, carbon monoxide, carbon dioxide, steam, if appropriate hydrogen and if appropriate oxygen;C) the product gas stream b is cooled, if appropriate compressed and steam is removed by condensation to obtain a steam-depleted product gas stream c;D) uncondensable or low-boiling gas constituents are removed by contacting the product gas stream c with an inert absorbent and subsequently desorbing the gases dissolved in the inert absorbent to obtain a C3 hydrocarbon stream d1 and an offgas stream d2 comprising methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, if appropriate hydrogen and if appropriate oxygen;E) the Ca hydrocarbon stream d1 is cooled and if appropriate compressed to obtain a gaseous or liquid Ca hydrocarbon stream e1; F) the C3 hydrocarbon stream e1 is if appropriate fed into a first distillation zone and separated distillatively into a stream f1 composed of propane and propene and a stream f2 comprising ethane and ethene;G) the stream e1 or f1 is fed into a (second) distillation zone and separated distillatively into a product stream g1 composed of propene and a stream g2 composed of propane, the stream g2 being recirculated at least partially into the dehydrogenation zone.

    摘要翻译： 本发明涉及一种从丙烷制备丙烯的方法，包括以下步骤：A）提供包含丙烷的原料气流a; B）包含丙烷的进料气流a（如果合适的话，蒸汽和适当的话）和含氧气流被送入脱氢区，丙烷经脱氢至丙烯以获得包含丙烷，丙烯，甲烷， 乙烷，乙烯，氮气，一氧化碳，二氧化碳，蒸汽，如果合适的氢气和适当的氧气; C）产物气流b被冷却，如果合适的话压缩并通过冷凝除去蒸汽，得到蒸汽消耗产物气流c; D）通过使产物气流c与惰性吸收剂接触并随后将溶解在惰性吸收剂中的气体解吸，得到C 3 O 3烃流d 1和 废气流d 2包括甲烷，乙烷，乙烯，氮气，一氧化碳，二氧化碳，如果合适的氢气和适当的氧气; E）将Ca烃流d 1冷却并适当压缩以获得气态或液态Ca烃流e 1; F）如果适当地将C 3烃流e 1加入第一蒸馏区并蒸馏分离成由丙烷和丙烯组成的料流f 1和包含乙烷和乙烯的料流f 2; 将流e 1或f 1进料到（第二）蒸馏区并蒸馏分离成由丙烯组成的产物流g 1和由丙烷组成的料流g 2，流g 2至少部分再循环至 脱氢区。