Process For Producing Propylene Oxide
    1.
    发明申请
    Process For Producing Propylene Oxide 有权
    生产环氧丙烷的方法

    公开(公告)号:US20080167484A1

    公开(公告)日:2008-07-10

    申请号:US11994129

    申请日:2006-06-20

    IPC分类号: C07D301/12

    CPC分类号: C07D301/12

    摘要: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.

    摘要翻译: 本发明涉及一种生产环氧丙烷的方法,其包括(I)在催化剂存在下使丙烯与过氧化氢反应,得到包含环氧丙烷,未反应的丙烯和氧的混合物(GI) (II)将环氧丙烷与混合物(GI)分离,得到包含丙烯和氧的混合物(GII); (III)在包含Sn和至少一种贵金属的催化剂的存在下至少部分地通过与氢反应来还原混合物(GII)中包含的氧。

    Process for producing propylene oxide
    2.
    发明申请
    Process for producing propylene oxide 审中-公开
    生产环氧丙烷的方法

    公开(公告)号:US20070004926A1

    公开(公告)日:2007-01-04

    申请号:US11168454

    申请日:2005-06-29

    IPC分类号: C07D301/12

    CPC分类号: C07D301/12

    摘要: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.

    摘要翻译: 本发明涉及一种生产环氧丙烷的方法,其包括(I)在催化剂存在下使丙烯与过氧化氢反应,得到包含环氧丙烷,未反应的丙烯和氧的混合物(GI) (II)将环氧丙烷与混合物(GI)分离,得到包含丙烯和氧的混合物(GII); (III)在包含Sn和至少一种贵金属的催化剂的存在下至少部分地通过与氢反应来还原混合物(GII)中包含的氧。

    Method for Producing Butadiene From N-Butane
    6.
    发明申请
    Method for Producing Butadiene From N-Butane 有权
    从丁烷生产丁二烯的方法

    公开(公告)号:US20070244349A1

    公开(公告)日:2007-10-18

    申请号:US11718814

    申请日:2005-11-11

    IPC分类号: C07C5/333 C07C11/167

    CPC分类号: C07C7/09 C07C5/333 C07C11/167

    摘要: Processes for producing butadiene from n-butane comprising: (a) providing a feed gas stream comprising n-butane; (b) non-oxidatively dehydrogenating the feed gas stream in the presence of a catalyst in a first dehydrogenation zone to form a first intermediate gas stream comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen; (c) oxidatively dehydrogenating the first intermediate gas stream in the presence of an oxygenous gas having an oxygen content of at least 75% by volume in a second dehydrogenation zone to form a second intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (d) compressing and cooling the second intermediate gas to form a first condensate stream comprising water and a third intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (e) compressing and cooling the third intermediate gas to form a second condensate stream comprising n-butane, butadiene and water and a fourth intermediate gas stream comprising n-butane, butadiene, hydrogen and carbon dioxide; (f) cooling the fourth intermediate gas stream to form a third condensate stream comprising n-butane and butadiene, and an offgas stream comprising carbon dioxide and hydrogen; (g) removing water from the second condensate stream and combining the second condensate stream and third condensate stream to form a C4 hydrocarbon stream comprising n-butane and butadiene; and (h) separating the C4 hydrocarbon stream to form a recycle stream comprising n-butane and a product stream comprising butadiene; wherein at least a portion of the recycle stream is fed to the first dehydrogenation zone.

    摘要翻译: 用于从正丁烷生产丁二烯的方法包括:(a)提供包含正丁烷的进料气流; (b)在催化剂存在下在第一脱氢区中使进料气流非氧化脱氢,以形成包含正丁烷,1-丁烯,2-丁烯,丁二烯和氢的第一中间气流; (c)在第二脱氢区中在氧含量至少为75体积%的氧气存在下,使第一中间气流氧化脱氢以形成包含正丁烷,丁二烯,氢,碳的第二中间气流 二氧化碳和蒸汽; (d)压缩和冷却第二中间气体以形成包含水的第一冷凝物流和包含正丁烷,丁二烯,氢气,二氧化碳和蒸汽的第三中间气流; (e)压缩和冷却第三中间气体以形成包含正丁烷,丁二烯和水的第二冷凝物流和包含正丁烷,丁二烯,氢气和二氧化碳的第四中间气流; (f)冷却第四中间气流以形成包含正丁烷和丁二烯的第三冷凝物流和包含二氧化碳和氢气的废气流; (g)从第二冷凝物流中除去水并将第二冷凝物流和第三冷凝物流合并以形成包含正丁烷和丁二烯的C 4烃流; 和(h)分离C 4 O 4烃流以形成包含正丁烷和包含丁二烯的产物流的再循环料流; 其中所述再循环流的至少一部分被供给到所述第一脱氢区。

    Method For The Production Of Propene From Propane
    9.
    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:US20080207975A1

    公开(公告)日:2008-08-28

    申请号:US11722367

    申请日:2005-12-20

    IPC分类号: C07C5/00

    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, nitrogen, carbon monoxide, carbon dioxide, steam and hydrogen;C) product gas stream b is cooled 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 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 and hydrogen;E) the C3 hydrocarbon stream d1 is cooled and compressed to obtain a liquid C3 hydrocarbon stream e1;F) the liquid C3− hydrocarbon stream e1 is 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) stream 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, and stream g2 is recycled at least partly 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)将包含丙烷和含氧气流的原料气流a进料到脱氢区,丙烷经受非氧化催化,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 ,氮气,一氧化碳,二氧化碳,蒸气和氢气; C)产物气流b被冷却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 N 3烃流d 1和废气,除去不可冷凝或低沸点气体成分 流d 2包含甲烷,乙烷,乙烯,氮气,一氧化碳,二氧化碳和氢气; E)将C 3 C 3烃流d 1冷却并压缩,得到液体C 3烃流e1; F)将液体C 3 - C 3 - 烃流e 1进料到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; G)流f 1进料到(第二)蒸馏区并蒸馏分离成由丙烯构成的产物流g 1和由丙烷组成的料流g 2,并且流g 2至少部分地再循环到脱氢区中。

    Method For The Production Of Butadine From N-Butane
    10.
    发明申请
    Method For The Production Of Butadine From N-Butane 有权
    从丁烷生产丁二烯的方法

    公开(公告)号:US20080097133A1

    公开(公告)日:2008-04-24

    申请号:US11721240

    申请日:2005-12-07

    IPC分类号: C07C5/333

    CPC分类号: C07C11/167 C07C5/48

    摘要: A process for preparing butadiene from n-butane, comprising 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 gas stream b comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen, with or without carbon dioxide and with or without steam; C) feeding the gas stream b and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to obtain a gas stream c comprising n-butane, butadiene, hydrogen, carbon dioxide and steam, D) compressing in at least one first compression stage and cooling the gas stream c to obtain at least one condensate stream d1 comprising water and a gas stream d2 comprising n-butane, butadiene, hydrogen, carbon dioxide and steam, E) separating the gas stream d2 by extractive distillation into a product stream e1 consisting substantially of butadiene and a stream e2 comprising n-butane, hydrogen, carbon dioxide and steam, F) compressing in at least one further compression stage and cooling the gas stream e2 to obtain at least one condensate stream f1 comprising n-butane and water, and a gas stream f2 comprising n-butane, hydrogen and carbon dioxide, G) cooling the gas stream f2 to obtain a condensate stream g1 comprising n-butane and an offgas stream g2 comprising carbon dioxide and hydrogen, H) removing water from the at least one condensate stream f1 and, if appropriate, from the condensate stream g1 by phase separation to obtain at least one recycle stream hi comprising n-butane and at least one wastewater stream h2, and recycling the at least one recycle stream h1 into the first dehydrogenation zone.

    摘要翻译: 一种从正丁烷制备丁二烯的方法,包括以下步骤: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,丁二烯和氢的气流b, 有或没有二氧化碳,有或没有蒸汽; C)将气流b和氧气送入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,丁二烯,氢气,二氧化碳和蒸汽的气流c,D) 在至少一个第一压缩级中压缩并冷却气流c以获得至少一个包含水的冷凝物流d 1和包含正丁烷,丁二烯,氢气,二氧化碳和蒸汽的气流d 2,E)将气体分离 流d 2通过萃取蒸馏成基本上由丁二烯组成的产物流e 1和包含正丁烷,氢气,二氧化碳和蒸汽的流e 2,F)在至少一个另外的压缩级中压缩并冷却气流e 2 以获得包含正丁烷和水的至少一个冷凝物流f 1和包含正丁烷,氢气和二氧化碳的气流f 2,G)冷却气流f 2以获得包含正丁烷和水的冷凝物流g 1, 丁烷和 废气流g 2包括二氧化碳和氢气,H)从至少一个冷凝物流f 1中除去水,如果合适的话,通过相分离从冷凝物流g 1中除去水,以获得至少一个包含正丁烷和 至少一个废水流h 2,并将所述至少一个循环流h 1再循环到第一脱氢区中。