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    • 1. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON PROPEN AUS PROPAN
    • EP1836146A1
    • 2007-09-26
    • EP06700188.3
    • 2006-01-04
    • BASF AKTIENGESELLSCHAFT
    • CRONE, SvenMACHHAMMER, OttoSCHINDLER, Götz-PeterBORGMEIER, Frieder
    • C07C5/327C07C7/11C07C7/04
    • C07C5/3337C07C7/11C07C11/06
    • A) A feed stream containing propane is prepared, B) the feed stream containing propane, optionally steam and optionally an oxygen-containing gas stream are fed to a dehydrogenation zone and propane undergoes a dehydrogenation to give propene, whereby a product gas stream b is obtained containing propane, propene, methane, ethane, ethene, carbon monoxide, carbon dioxide, steam, optionally hydrogen and optionally oxygen, C) the product gas stream b is cooled, optionally compressed and steam separated off by condensation, to give a product gas stream c stripped of steam, D) the product gas stream c is brought into contact with a selective inert absorption agent which selectively absorbs propene in a first absorption zone, to give an essentially propane-charged absorption agent stream d1 and a gas stream d2 containing propane, methane, ethane, ethene, carbon monoxide, carbon dioxide and hydrogen, E) the absorption agent stream d1 is optionally depressurised in a first desorption zone, to give an essentially propene-charged absorption agent stream e1 and a gas stream e2, containing propene, said gas stream e2 being recycled into the first absorption zone and F) a propene-containing gas stream f1 is released from the essentially propene-charged absorption agent stream d1 and e1 in at least one second desorption zone by depressurization, heating and/or stripping of the absorption agent stream d1 and e1 with recycling of the selective absorption agent.
    • A)制备含有丙烷的进料流,B)将含有丙烷,任选的蒸汽和任选的含氧气流的进料流进料至脱氢区,并将丙烷脱氢生成丙烯,由此产物气流b为 得到含有丙烷,丙烯,甲烷,乙烷,乙烯,一氧化碳,二氧化碳,蒸汽,任选的氢气和任选的氧气,C)将产物气流b冷却,任选压缩并通过冷凝分离出蒸汽,得到产物气体 d)将产物气流c与选择性吸收剂接触,所述选择性惰性吸收剂选择性吸收第一吸收区中的丙烯,得到基本上丙烷加入的吸收剂流d1和含有 丙烷,甲烷,乙烷,乙烯,一氧化碳,二氧化碳和氢气,E)吸收剂料流d1任选地在第一解吸区中减压至g 基本上丙烯的吸收剂流e1和含丙烯的气流e2,所述气流e2被再循环到第一吸收区中,并且F)含丙烯的气流f1从基本上带丙烯的吸收剂释放 在至少一个第二解吸区中通过吸收剂流d1和e1的减压,加热和/或汽提以及选择性吸收剂的再循环来产生流d1和e1。
    • 5. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON ACROLEIN UND/ODER ACRYLSÄURE AUS PROPAN
    • VERFAHREN ZUR HERSTELLUNG VON ACROLEIN UND / ODERACRYLSÄUREAUS PROPAN
    • EP1109774A1
    • 2001-06-27
    • EP99941557.3
    • 1999-08-10
    • BASF AKTIENGESELLSCHAFT
    • MACHHAMMER, OttoTENTEN, AndreasJACHOW, HaraldHAUPT, SusanneARNOLD, HeikoUNVERRICHT, Signe
    • C07C57/05C07C45/35C07C5/333
    • C07C51/215C07C45/33C07C45/35C07C51/252C07C47/22C07C57/04
    • A method for producing acrolein and/or acrylic acid from propane, whereby the propane undergoes partial homogeneous and/or heterogeneous catalysed oxydehydrogenation in a first reaction step with molecular oxygen to form propane. The product gas mixture formed in the first reaction step is used to produce acrolein and/or acrylic acid by means of gas-phase catalytic propane oxidation. The method is characterised in that the molecular oxygen which is required in the first reaction area and is different from the recycled oxygen gas is added to the initial reaction gas mixture of the first reaction area as modified air containing nitrogen with the proviso that the nitrogen content of the modified air is lower than and the oxygen content of the modified air is greater than the corresponding air contents. The invention is further characterised in that at least one part of the molecular nitrogen contained in the flow of residual gas is separated from the residual gas flow before the residual gas flow is returned to the first reaction area.
    • 由丙烷生产丙烯醛和/或丙烯酸的方法,其中丙烷在第一反应步骤中与分子氧进行部分均相和/或多相催化氧化脱氢生成丙烷。 在第一反应步骤中形成的产物气体混合物用于通过气相催化丙烷氧化生产丙烯醛和/或丙烯酸。 该方法的特征在于,将第一反应区域所需的与再循环氧气不同的分子氧作为含有氮的改质空气添加到第一反应区域的初始反应气体混合物中,其条件是氮含量 的改性空气的氧含量低于并且改性空气的氧含量大于相应的空气含量。 本发明的特征还在于,在残余气流返回到第一反应区之前,残留气体流中所含的至少一部分分子氮与残余气流分离。
    • 6. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON PROPEN AUS PROPAN
    • EP1833776A1
    • 2007-09-19
    • EP05821810.8
    • 2005-12-20
    • BASF AKTIENGESELLSCHAFT
    • MACHHAMMER, OttoCRONE, SvenSCHINDLER, Götz-Peter
    • C07C5/333C07C11/06
    • C07C5/3337C07C7/04C07C11/06
    • The invention relates to a method for the production of propene from propane comprising the steps: A) a feed gas stream containing propane is prepared, B) the feed gas stream containing propane a and an oxygen-containing gas stream are supplied to a dehydrogenation zone and propane is subjected to a non-oxidative catalytic autothermal dehydrogenation to give propene, whereby a product gas stream b containing propane, propene, methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, water vapour and hydrogen is obtained, C) the product gas stream b is cooled and water vapour separated off by condensation to give a product as stream c stripped of water vapour, D) non-condensable or low-boiling gas components are separated off by bringing the product gas stream c into contact with an inert absorption agent with subsequent desorption of the gases dissolved in the inert absorption agent, whereby a C3 hydrocarbon stream d1 and a waste-gas stream d2, containing methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide and hydrogen are generated, E) the C3 hydrocarbon stream d1 is cooled and compressed, to give a liquid C3 hydrocarbon stream e1, F) the liquid C3 hydrocarbon stream e1 is fed to a first distillation zone and separated by distillation into a stream f1 containing propane and propene and a stream f2 containing ethane and ethene and G) the stream f1 is fed to a second distillation zone and separated by distillation into a product gas stream g1 of propene and a stream g2 of propane, whereby the stream g2 is at least partly recycled into the dehydrogenation zone.
    • 本发明涉及一种由丙烷生产丙烯的方法,其包括以下步骤:A)制备含有丙烷的进料气流,B)将含有丙烷a和含氧气流的进料气流供入脱氢区 丙烷进行非氧化催化自热脱氢得到丙烯,由此得到含有丙烷,丙烯,甲烷,乙烷,乙烯,氮气,一氧化碳,二氧化碳,水蒸气和氢气的产物气流b,C) 将产物气流b冷却并通过冷凝分离出水蒸汽,得到作为物流c的产物,汽提出水蒸气,D)通过使产物气流c与分离器接触,分离不可冷凝或低沸点气体组分 惰性吸收剂,随后解吸溶解在惰性吸收剂中的气体,由此得到含有甲烷,乙烷,乙烯的C3烃物流d1和废气物流d2 产生一氧化碳,氮气,一氧化碳,二氧化碳和氢气,E)将C3烃物流d1冷却并压缩,得到液体C3烃物流e1,F)将液体C3烃物流e1进料到第一蒸馏区 并通过蒸馏分离成含有丙烷和丙烯的料流f1和含有乙烷和乙烯的料流f2,和G)将料流f1供入第二蒸馏区并通过蒸馏分离成丙烯的产物气流g1和 丙烷,由此将料流g2至少部分再循环到脱氢区中。