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公开(公告)号：US20110054210A1
公开(公告)日：2011-03-03
申请号：US12989018
申请日：2009-04-21
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： The invention provides a process for preparing unsaturated carboxylic esters by means of reaction of alkenes having 2 to 6 carbon atoms with alkanecarboxylic acids having 1 to 6 carbon atoms in the presence of an oxygenous gas and in the presence of a heterogeneous noble metal catalyst by means of a continuous homogeneous gas phase process in a reactor, wherein a gaseous phase (cycle gas) is circulated, and the cycle gas is laden with alkanecarboxylic acid in an acid saturator before entry into the reactor, characterized in that, in a presaturator connected upstream of the acid saturator, the cycle gas is laden with a portion of the amount of alkanecarboxylic acid used for saturation, then it is transferred to the acid saturator and laden there with the remaining amount of alkanecarboxylic acid.
摘要翻译： 本发明提供了一种通过在具有2-6个碳原子的烯烃与含有1-6个碳原子的链烷羧酸在氧气存在下和在异质贵金属催化剂存在下通过反应制备不饱和羧酸酯的方法 在反应器中连续均匀气相方法，其中气相（循环气体）循环，并且在进入反应器之前，循环气体在酸饱和器中载有烷烃羧酸，其特征在于，在与上游连接的预定型器 的酸饱和器中，循环气体载满一部分用于饱和的烷烃羧酸，然后将其转移到酸性饱和器中并用剩余量的烷烃羧酸装满。
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公开(公告)号：US08710259B2
公开(公告)日：2014-04-29
申请号：US13266324
申请日：2010-04-22
申请人： Willibald Dafinger , Peter Holl , Johann Wagner
发明人： Willibald Dafinger , Peter Holl , Johann Wagner
IPC分类号： C07C67/05
CPC分类号： C07C67/05 , C07C67/055 , C07C69/01 , C07C69/15
摘要： The invention relates to a method for producing vinyl acetate in a heterogeneously catalyzed, continuous gas-phase process by reacting ethylene with acetic acid and oxygen in a reactor, and a) separating the product gas flow essentially containing ethylene, vinyl acetate, acetic acid, water, carbon dioxide, and other inert gases, and b) feeding a circulating gas flow containing ethylene and CO2 back into the reactor, c) the circulating gas flow being compressed in a circulating gas compressor before being fed back into the reactor, and d) a partial flow of the circulating gas is branched off on the suction side or the pressure side of the circulating gas compressor and is fed to a CO2 scrubbing process, and e) is scrubbed in a water scrubber before the CO2 scrubbing process, characterized in that f) after the CO2 scrubbing process, the partial flow, together with ethylene as a propellant, is fed, by means of a jet compressor, to the circulating gas on the pressure side of the circulating gas compressor and downstream of the point where the partial flow is removed for CO2 scrubbing, and/or g) the bottom product from the water scrubber is fed directly to the pre-dehydration column.
摘要翻译： 本发明涉及一种通过在反应器中使乙烯与乙酸和氧反应而在非均相催化的连续气相方法中生产乙酸乙烯酯的方法，以及a）分离基本上含有乙烯，乙酸乙烯酯，乙酸， 水，二氧化碳和其他惰性气体，以及b）将含有乙烯和CO 2的循环气流送入反应器中，c）循环气体流在回送进入反应器之前在循环气体压缩机中被压缩，d ）循环气体的部分流动在循环气体压缩机的吸入侧或压力侧分支并进料到CO 2洗涤过程中，e）在CO 2洗涤过程之前在水洗涤器中洗涤，其特征在于 f）在CO 2洗涤过程之后，部分流动与乙烯作为推进剂一起通过喷射式压缩机进料到循环压力侧的循环气体 并且/或g）将来自水洗涤器的底部产物直接供给到预脱水塔中。
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公开(公告)号：US08258336B2
公开(公告)日：2012-09-04
申请号：US12989018
申请日：2009-04-21
IPC分类号： C07C67/05
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： A process for preparing unsaturated carboxylic esters includes reaction of alkenes having 2 to 6 carbon atoms with alkanecarboxylic acids having 1 to 6 carbon atoms in the presence of an oxygenous gas and in the presence of a heterogeneous noble metal catalyst by means of a continuous homogeneous gas phase process in a reactor. A gaseous phase (cycle gas) is circulated, and the cycle gas is laden with alkanecarboxylic acid in an acid saturator before entry into the reactor. In a presaturator connected upstream of the acid saturator, the cycle gas is laden with a portion of the amount of alkanecarboxylic acid used for saturation, and then it is transferred to the acid saturator and laden there with the remaining amount of alkanecarboxylic acid.
摘要翻译： 制备不饱和羧酸酯的方法包括在氧气存在下，具有2至6个碳原子的烯烃与具有1至6个碳原子的链烷羧酸反应，并且在多相贵金属催化剂存在下，通过连续的均匀气体 反应器中的相过程。 气相（循环气体）循环，循环气体在进入反应器之前，在酸性饱和器中负载有链烷酸。 在连接在酸饱和器上游的预调器中，循环气体载满一部分用于饱和的烷烃羧酸，然后将其转移到酸性饱和器中并用剩余量的烷烃羧酸装满。
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公开(公告)号：US20120053361A1
公开(公告)日：2012-03-01
申请号：US13266324
申请日：2010-04-22
申请人： Willibald Dafinger , Peter Holl , Johann Wagner
发明人： Willibald Dafinger , Peter Holl , Johann Wagner
IPC分类号： C07C67/05
CPC分类号： C07C67/05 , C07C67/055 , C07C69/01 , C07C69/15
摘要： The invention relates to a method for producing vinyl acetate in a heterogeneously catalyzed, continuous gas-phase process by reacting ethylene with acetic acid and oxygen in a reactor, and a) separating the product gas flow essentially containing ethylene, vinyl acetate, acetic acid, water, carbon dioxide, and other inert gases, and b) feeding a circulating gas flow containing ethylene and CO2 back into the reactor, c) the circulating gas flow being compressed in a circulating gas compressor before being fed back into the reactor, and d) a partial flow of the circulating gas is branched off on the suction side or the pressure side of the circulating gas compressor and is fed to a CO2 scrubbing process, and e) is scrubbed in a water scrubber before the CO2 scrubbing process, characterized in that f) after the CO2 scrubbing process, the partial flow, together with ethylene as a propellant, is fed, by means of a jet compressor, to the circulating gas on the pressure side of the circulating gas compressor and downstream of the point where the partial flow is removed for CO2 scrubbing, and/or g) the bottom product from the water scrubber is fed directly to the pre-dehydration column.
摘要翻译： 本发明涉及一种通过在反应器中使乙烯与乙酸和氧反应而在非均相催化的连续气相方法中生产乙酸乙烯酯的方法，以及a）分离基本上含有乙烯，乙酸乙烯酯，乙酸， 水，二氧化碳和其他惰性气体，以及b）将含有乙烯和CO 2的循环气流送入反应器中，c）循环气体流在回送进入反应器之前在循环气体压缩机中被压缩，d ）循环气体的部分流动在循环气体压缩机的吸入侧或压力侧分支并进料到CO 2洗涤过程中，e）在CO 2洗涤过程之前在水洗涤器中洗涤，其特征在于 f）在CO 2洗涤过程之后，部分流动与乙烯作为推进剂一起通过喷射式压缩机进料到循环压力侧的循环气体 并且/或g）将来自水洗涤器的底部产物直接供给到预脱水塔中。
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公开(公告)号：US08410307B2
公开(公告)日：2013-04-02
申请号：US13574493
申请日：2011-01-14
申请人： Mehmet Guenaltay , Willibald Dafinger , Peter Holl
发明人： Mehmet Guenaltay , Willibald Dafinger , Peter Holl
CPC分类号： C07C67/055 , C07C67/54 , C07C69/01 , C07C69/15
摘要： A method for producing vinyl acetate in a heterogeneously catalyzed, continuous gas phase process by reacting ethylene with acetic acid and oxygen in a reactor and separating the product gas stream substantially comprising ethylene, vinyl acetate, acetic acid, water, carbon dioxide and inert gases.
摘要翻译： 一种通过在反应器中使乙烯与乙酸和氧气反应而在不均匀催化的连续气相方法中生产乙酸乙烯酯的方法，并分离基本上包含乙烯，乙酸乙烯酯，乙酸，水，二氧化碳和惰性气体的产物气流。
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公开(公告)号：US08765995B2
公开(公告)日：2014-07-01
申请号：US13202227
申请日：2010-02-16
IPC分类号： C07C67/05
CPC分类号： C07C67/05 , B01J8/067 , C07C67/055 , Y02P20/582 , C07C69/01 , C07C69/15
摘要： The invention provides a process for preparing vinyl acetate monomer (VAM) by reacting ethylene with acetic acid and oxygen in a tube bundle reactor in a heterogeneously catalysed, continuous gas phase process, characterized in that a high-performance catalyst with a space-time yield of more than 700 g of VAM/l of catalyst×hour is used for catalysis, and in that the tube bundle reactor comprises tubes with a ratio of inner surface area to volume of ≧130 m−1.
摘要翻译： 本发明提供了一种通过使乙烯与乙酸和氧在管束反应器中在非均相催化的连续气相方法中反应制备乙酸乙烯酯单体（VAM）的方法，其特征在于具有时空产率的高性能催化剂 使用超过700g VAM / l催化剂×小时用于催化，并且管束反应器包括内表面积与体积比为≥130m-1的管。
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公开(公告)号：US20120310007A1
公开(公告)日：2012-12-06
申请号：US13574493
申请日：2011-01-14
申请人： Mehmet Guenaltay , Willibald Dafinger , Peter Holl
发明人： Mehmet Guenaltay , Willibald Dafinger , Peter Holl
CPC分类号： C07C67/055 , C07C67/54 , C07C69/01 , C07C69/15
摘要： A method for producing vinyl acetate in a heterogeneously catalyzed, continuous gas phase process by reacting ethylene with acetic acid and oxygen in a reactor and separating the product gas stream substantially comprising ethylene, vinyl acetate, acetic acid, water, carbon dioxide and inert gases.
摘要翻译： 一种通过在反应器中使乙烯与乙酸和氧气反应而在不均匀催化的连续气相方法中生产乙酸乙烯酯的方法，并分离基本上包含乙烯，乙酸乙烯酯，乙酸，水，二氧化碳和惰性气体的产物气流。
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公开(公告)号：US20120041231A1
公开(公告)日：2012-02-16
申请号：US13202227
申请日：2010-02-16
IPC分类号： C07C57/03
CPC分类号： C07C67/05 , B01J8/067 , C07C67/055 , Y02P20/582 , C07C69/01 , C07C69/15
摘要： The invention provides a process for preparing vinyl acetate monomer (VAM) by reacting ethylene with acetic acid and oxygen in a tube bundle reactor in a heterogeneously catalysed, continuous gas phase process, characterized in that a high-performance catalyst with a space-time yield of more than 700 g of VAM/l of catalyst×hour is used for catalysis, and in that the tube bundle reactor comprises tubes with a ratio of inner surface area to volume of ≧130 m-1.
摘要翻译： 本发明提供了一种通过使乙烯与乙酸和氧在管束反应器中在非均相催化的连续气相方法中反应制备乙酸乙烯酯单体（VAM）的方法，其特征在于具有时空产率的高性能催化剂 使用超过700g VAM / l催化剂×小时用于催化，并且管束反应器包括内表面积与体积比为≥130m-1的管。
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9.发明授权Method for recovery of ethylene in a recirculating gas process for the production of vinyl acetate 有权在用于生产乙酸乙烯酯的再循环气体方法中回收乙烯的方法公开(公告)号：US07803965B2
公开(公告)日：2010-09-28
申请号：US10599880
申请日：2005-03-31
申请人： Willibald Dafinger , Peter Holl , Wilhelm Kaiser , Jürgen Guba
发明人： Willibald Dafinger , Peter Holl , Wilhelm Kaiser , Jürgen Guba
IPC分类号： C07C67/48
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： The efficiency of vinyl acetate production is increased by scrubbing of off gas followed by CO2 absorption. A portion of the off gas containing substantial quantities of ethylene is recycled to the process, whereas another portion is employed in another ethylene consuming reaction. Despite not removing non-reactive gases, selectivity and yield based on ethylene are both increased.
摘要翻译： 乙酸乙烯酯生产的效率通过洗涤废气然后CO 2吸收而增加。 含有大量乙烯的废气的一部分被再循环到该方法中，而另一部分用于另一乙烯消耗反应。 尽管没有除去非反应性气体，但是基于乙烯的选择性和收率均增加。
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10.发明申请Method for Recovery of Ethylene in a Recirculating Gas Process for the Production of Vinyl Acetate 有权在乙酸乙烯酯生产循环气体工艺中回收乙烯的方法公开(公告)号：US20080004467A1
公开(公告)日：2008-01-03
申请号：US10599880
申请日：2005-03-31
申请人： Willibald Dafinger , Peter Holl , Wilhelm Kaiser , Jurgen Guba
发明人： Willibald Dafinger , Peter Holl , Wilhelm Kaiser , Jurgen Guba
IPC分类号： C07C67/05
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： The efficiency of vinyl acetate production is increased by scrubbing of off gas followed by CO2 absorption. A portion of the off gas containing substantial quantities of ethylene is recycled to the process, whereas another portion is employed in another ethylene consuming reaction. Despite not removing non-reactive gases, selectivity and yield based on ethylene are both increased.
摘要翻译： 乙酸乙烯酯生产的效率通过洗涤废气然后CO 2吸收而增加。 含有大量乙烯的废气的一部分被再循环到该方法中，而另一部分用于另一乙烯消耗反应。 尽管没有除去非反应性气体，但是基于乙烯的选择性和收率均增加。
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