Method for Producing Butadiene from N-Butane
    1.
    发明申请
    Method for Producing Butadiene from N-Butane 失效
    从丁烷生产丁二烯的方法

    公开(公告)号:US20080183024A1

    公开(公告)日:2008-07-31

    申请号:US11813935

    申请日:2006-01-16

    IPC分类号: C07C5/327

    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 product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen and low-boiling secondary constituents, with or without carbon oxides and with or without 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, carbon oxides and steam, said product gas stream c having a higher content of butadiene than 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) recycling stream e1 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,氢和 低沸点二次成分,有或没有碳氧化物,有或没有蒸汽; 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,碳氧化物和蒸汽,所述产物气流c具有比产物气流b更高的丁二烯含量; 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)通过萃取蒸馏将C 4 S 4产物气流d分离成基本上由正丁烷和2-丁烯组成的流e 1和基本上由丁二烯组成的价值产物流e 2; F)将流e 1再循环到第一脱氢区。

    Method and Device for Completely Hydrogenating a Hydrocarbon Flow
    3.
    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

    IPC分类号: C07C327/00 B01J19/00

    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 1,2-dichloroethane
    4.
    发明授权
    Method for the production of 1,2-dichloroethane 失效
    生产1,2-二氯乙烷的方法

    公开(公告)号:US06900363B2

    公开(公告)日:2005-05-31

    申请号:US10497598

    申请日:2002-12-04

    摘要: A process for preparing 1,2-dichloroethane which comprises (A) feeding an ethane-containing feed gas stream into a dehydrogenation zone and dehydrogenating ethane to ethane to give a product gas stream comprising ethane, ethane and secondary constituents, (B) feeding the ethan- and ethene-containing dehydrogenation product gas stream as a single stream or a plurality of substreams, optionally after having separated off secondary constituents, into one or more chlorination zones, chlorinating ethene to 1,2-dichloroethane to give one or more product gas streams comprising 1,2-dichloroethane, ethane and possibly further secondary constituents, isolating 1,2-dichloroethane and one or more ethane-containing circulating gas streams and recirculating the ethane-containing circulating gas stream or streams to the ethane dehydrogenation.

    摘要翻译: 一种制备1,2-二氯乙烷的方法,其包括(A)将含乙烷的原料气流送入脱氢区并将乙烷脱氢为乙烷,得到包含乙烷,乙烷和第二组分的产物气流,(B) 含有乙烯和乙烯的脱氢产物气流作为单一流或多个子流,任选地在分离出次级成分后,形成一个或多个氯化区,将乙烯氯化成1,2-二氯乙烷,得到一种或多种产物气体 包含1,2-二氯乙烷,乙烷和可能的其它二级成分的物流,分离1,2-二氯乙烷和一种或多种含乙烷的循环气流,并将含乙烷的循环气流或物流再循环到乙烷脱氢。

    Process for preparing tri-n-propylamine (TPA)
    5.
    发明授权
    Process for preparing tri-n-propylamine (TPA) 失效
    制备三正丙胺(TPA)的方法

    公开(公告)号:US08466322B2

    公开(公告)日:2013-06-18

    申请号:US13173437

    申请日:2011-06-30

    IPC分类号: C07C209/64

    摘要: Process for preparing tri-n-propylamine (TPA), wherein di-n-propylamine (DPA) is reacted in the presence of hydrogen and a copper-comprising heterogeneous catalyst. An integrated process for preparing TPA, which comprises the following operations: I) reaction of n-propanol with ammonia in a reactor in the presence of an amination catalyst and optionally hydrogen to form a mixture of mono-n-propylamine, DPA and TPA, II) separation of unreacted ammonia, unreacted n-propanol and possibly hydrogen from the reaction product mixture and recirculation of at least the ammonia and propanol to the reactor in I) and also separation of the n-propylamine mixture by distillation and isolation of the TPA, III) reaction of the DPA obtained in the separation by distillation in II) in a reactor in the presence of hydrogen and a copper-comprising heterogeneous catalyst to form TPA and IV) feeding of the reactor output from III) to operation II).

    摘要翻译: 制备三正丙胺(TPA)的方法,其中二正丙胺(DPA)在氢存在下与含铜的非均相催化剂反应。 一种制备TPA的综合方法,其包括以下操作:I)在胺化催化剂和任选的氢气存在下,反应器中正丙醇与氨的反应,形成单正丙胺,DPA和TPA的混合物, II)从反应产物混合物中分离未反应的氨,未反应的正丙醇和可能的氢,并在I)中将至少氨和丙醇再循环到反应器中,并且还通过蒸馏和分离TPA分离正丙胺混合物 ,III)在反应器中在氢气和含铜的非均相催化剂的存在下在II)中在蒸馏分离中获得的DPA的反应,以形成TPA和IV)将反应器输出从III)进料到操作II)。

    Method for producing butadiene from n-butane
    6.
    发明授权
    Method for producing butadiene from n-butane 失效
    从正丁烷生产丁二烯的方法

    公开(公告)号:US08088962B2

    公开(公告)日:2012-01-03

    申请号:US11813935

    申请日:2006-01-16

    IPC分类号: C07C5/333

    摘要: A process for preparing butadiene, comprising A) providing a stream (a) comprising n-butane; B) feeding stream (a) comprising into at least one first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to obtain a stream (b) comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen and low-boiling secondary constituents; C) feeding stream (b) and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating n-butane, 1-butene and 2-butene to obtain a stream (c) comprising n-butane, 2-butene, butadiene, low-boiling secondary constituents, carbon oxides and steam, wherein stream (c) has a higher content of butadiene than stream (b); D) removing the low-boiling secondary constituents and steam to obtain a stream (d) substantially consisting of n-butane, 2-butene and butadiene; E) separating stream (d) into a stream (e1) consisting substantially of n-butane and 2-butene and a stream (e2) consisting substantially of butadiene by extractive distillation; F) recycling stream (e1) into the first dehydrogenation zone.

    摘要翻译: 一种制备丁二烯的方法,包括A)提供包含正丁烷的料流(a); B)将包含至少一个第一脱氢区和非氧化催化脱氢的正丁烷的料流(a)进料,以获得包含正丁烷,1-丁烯,2-丁烯,丁二烯,氢和低沸点二级 成分; C)将进料流(b)和氧气送入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,2-丁烯,丁二烯, 低沸点次级成分,碳氧化物和蒸汽,其中物流(c)具有比物流(b)更高的丁二烯含量; 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料流(d); E)通过萃取蒸馏将料流(d)分离成基本上由正丁烷和2-丁烯组成的料流(e1)和基本上由丁二烯组成的料流(e2); F)再循环流(e1)进入第一脱氢区。

    PROCESS FOR PREPARING TRI-N-PROPYLAMINE (TPA)
    9.
    发明申请
    PROCESS FOR PREPARING TRI-N-PROPYLAMINE (TPA) 失效
    制备三-N-丙酰胺(TPA)的方法

    公开(公告)号:US20120004464A1

    公开(公告)日:2012-01-05

    申请号:US13173437

    申请日:2011-06-30

    IPC分类号: C07C211/06 C07C209/60

    摘要: Process for preparing tri-n-propylamine (TPA), wherein di-n-propylamine (DPA) is reacted in the presence of hydrogen and a copper-comprising heterogeneous catalyst.An integrated process for preparing TPA, which comprises the following operations: I) reaction of n-propanol with ammonia in a reactor in the presence of an amination catalyst and optionally hydrogen to form a mixture of mono-n-propylamine, DPA and TPA, II) separation of unreacted ammonia, unreacted n-propanol and possibly hydrogen from the reaction product mixture and recirculation of at least the ammonia and propanol to the reactor in I) and also separation of the n-propylamine mixture by distillation and isolation of the TPA, III) reaction of the DPA obtained in the separation by distillation in II) in a reactor in the presence of hydrogen and a copper-comprising heterogeneous catalyst to form TPA and IV) feeding of the reactor output from III) to operation II).

    摘要翻译: 制备三正丙胺(TPA)的方法,其中二正丙胺(DPA)在氢存在下与含铜的非均相催化剂反应。 一种制备TPA的综合方法,其包括以下操作:I)在胺化催化剂和任选的氢气存在下,反应器中正丙醇与氨的反应,形成单正丙胺,DPA和TPA的混合物, II)从反应产物混合物中分离未反应的氨,未反应的正丙醇和可能的氢,并在I)中将至少氨和丙醇再循环到反应器中,并且还通过蒸馏和分离TPA分离正丙胺混合物 ,III)在反应器中在氢气和含铜的非均相催化剂的存在下在II)中在蒸馏分离中获得的DPA的反应,以形成TPA和IV)将反应器输出从III)进料到操作II)。

    METHOD FOR PRODUCING PROPENE FROM PROPANE
    10.
    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:US20090312591A1

    公开(公告)日:2009-12-17

    申请号:US12294748

    申请日:2007-03-13

    IPC分类号: C07C5/327

    摘要: The present invention relates to processes 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, hydrogen, if appropriate carbon monoxide, carbon dioxide, steam and 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) the product gas stream c is contacted with a selective adsorbent which adsorbs propene selectively under the selected adsorption conditions to obtain a propene-laden adsorbent and a propene-depleted gas stream d2 comprising propane, methane, ethane, ethene and hydrogen, carbon monoxide and carbon dioxide; E) a propene-comprising gas stream e1 is released from the propane-laden adsorbent by pressure reduction and/or heating of the adsorbent.

    摘要翻译: 本发明涉及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,氢气,如果适用,一氧化碳,二氧化碳,蒸气和氧气; 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)产物气流c与在选择的吸附条件下选择性吸附丙烯的选择性吸附剂接触以获得含有丙烯的吸附剂和包含丙烷,甲烷,乙烷,乙烯和氢气的一种贫含丙烯的气流d2,一氧化碳 和二氧化碳; E)通过吸附剂的减压和/或加热将含丙烯气流e1从载有丙烷的吸附剂中释放。