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公开(公告)号：US20070179330A1
公开(公告)日：2007-08-02
申请号：US10584785
申请日：2004-12-30
CPC分类号： C07C5/333 , C07C5/48 , C07C11/167
摘要： The invention relates to a process for preparing butadiene from n-butane having 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, low-boiling secondary constituents and in some cases 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 1-butene and 2-butene to obtain a product gas stream c comprising n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and steam, said product gas stream c having a higher content of butadiene than the product gas stream b; D) removing hydrogen, 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) feeding the C4 product gas stream d into a distillation zone and removing a butadiene/butane mixture as the product of value stream e1, to leave a stream e2 consisting substantially of n-butane and 2-butene; F) recycling the stream e2 into the first dehydrogenation zone.
摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：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， 低沸点次生成分，有时还有蒸汽; 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1-丁烯和2-丁烯氧化脱氢得到包含正丁烷，2-丁烯， 丁二烯，氢，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; D）除去氢气，低沸点次级组分和蒸汽，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）将C 4 H 4产物气流d进料到蒸馏区中并除去作为值流e1的产物的丁二烯/丁烷混合物，以留下基本上由正丁烷和2- 丁烯 F）将流e2再循环到第一脱氢区。
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公开(公告)号：US20070167661A1
公开(公告)日：2007-07-19
申请号：US10584758
申请日：2004-12-30
申请人： Thorsten Johann , Gotz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Thomas Hill , Mark Duda
发明人： Thorsten Johann , Gotz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Thomas Hill , Mark Duda
IPC分类号： C07C5/327
CPC分类号： C07C5/333 , C07C5/48 , C07C11/167
摘要： The invention relates to a process for preparing butadiene from n-butane having 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, low-boiling secondary constituents and in some cases 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 1-butene and 2-butene to obtain a product gas stream c comprising n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and steam, said product gas stream c having a higher content of butadiene than the product gas stream b; D) removing hydrogen, 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 recycle stream e1 consisting substantially of n-butane and 2-butene and a stream e2 consisting substantially of butadiene by extractively distilling and recycling the stream e1 into the first dehydrogenation zone; F) if desired, feeding some or all of the stream e2 consisting substantially of butadiene into a selective hydrogenation zone and selectively hydrogenating butadiene to 1- and/or 2-butene to obtain a stream f comprising 1-butene and 2-butene; G) if desired, feeding the stream f comprising 1-butene and 2-butene into a distillation zone and removing a product of value stream g1 consisting substantially of 1-butene to leave a stream g2 comprising 2-butene; H) if desired, recycling the stream g2 comprising 2-butene into the first dehydrogenation zone.
摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：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， 低沸点次生成分，有时还有蒸汽; 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1-丁烯和2-丁烯氧化脱氢得到包含正丁烷，2-丁烯， 丁二烯，氢，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; D）除去氢气，低沸点次级组分和蒸汽，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）将C 4 H 4产物气流d分离成基本上由正丁烷和2-丁烯组成的循环流e1和基本上由丁二烯组成的物流e2，通过萃取蒸馏并将流e1再循环到 第一个脱氢区; F）如果需要，将基本上由丁二烯组成的一些或全部流e2加入到选择性氢化区中，并将丁二烯选择性氢化为1-和/或2-丁烯，以获得包含1-丁烯和2-丁烯的料流f; 如果需要，将包含1-丁烯和2-丁烯的料流f加入到蒸馏区中并除去基本上由1-丁烯组成的物流g1的产物以留下包含2-丁烯的料流g2; H）如果需要，将包含2-丁烯的料流g2再循环到第一脱氢区中。
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公开(公告)号：US20070161842A1
公开(公告)日：2007-07-12
申请号：US10584783
申请日：2004-12-30
申请人： Thorsten Johann , Gotz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Marcus Sigl , Mark Duda
发明人： Thorsten Johann , Gotz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Marcus Sigl , Mark Duda
CPC分类号： C07C5/327 , C07C5/333 , C07C5/48 , C07C11/167
摘要： The invention relates to a process for preparing butadiene from n-butane having 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, low-boiling secondary constituents and in some cases 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 and steam, said product gas stream c having a higher content of butadiene than the 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) feeding the stream e1 consisting substantially of n-butane and 2-butene and a cycle stream g comprising 1-butene and 2-butene into a distillation zone and separating into a 1-butene-rich product of value stream f1, a recycle stream f2 comprising 2-butene and n-butane and a stream f3 comprising 2-butene, and recycling the recycle stream f2 into the first dehydrogenation zone; G) feeding the stream f3 comprising 2-butene into an isomerization zone and isomerizing 2-butene to 1-butene to obtain a cycle stream g comprising 1-butene and 2-butene, and recycling the cycle gas stream g into the distillation zone.
摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：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， 低沸点次生成分，有时还有蒸汽; 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，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; 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）将C 4 H 4产物气流d分离成基本上由正丁烷和2-丁烯组成的物流e1和通过萃取蒸馏基本上由丁二烯组成的价值流e2的产物; F）将基本上由正丁烷和2-丁烯组成的流e1和包含1-丁烯和2-丁烯的循环流g加入到蒸馏区中并分离成价值流f1的富含1-丁烯的产物，再循环 包含2-丁烯和正丁烷的料流f2和包含2-丁烯的料流f3，并将再循环料流f2再循环到第一脱氢区中; G）将包含2-丁烯的料流f3进料到异构化区并将2-丁烯异构化成1-丁烯，得到包含1-丁烯和2-丁烯的循环流g，并将循环气流g再循环到蒸馏区中。
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公开(公告)号：US07482500B2
公开(公告)日：2009-01-27
申请号：US10584758
申请日：2004-12-30
申请人： Thorsten Johann , Götz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Thomas Hill , Mark Duda
发明人： Thorsten Johann , Götz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Thomas Hill , Mark Duda
CPC分类号： C07C5/333 , C07C5/48 , C07C11/167
摘要： The disclosure relates to a process for preparing butadiene. The process involves nonoxidatively catalytically dehydrogenating butane to obtain a product gas stream containing butane, 1-butene, 2-butene, butadiene, hydrogen and secondary constituents. The 1-butene and 2-butene of the product gas stream is then oxidatively dehydrogenated to give a second gas stream containing butane,2-butene, butadiene, hydrogen, steam and secondary constituents. Next, the butane,2-butene and butadiene are separated from the second gas stream and the butane and 2-butene are then separated from the butadiene product. The butane and 2-butene are then recycled into the nonoxidative catalytic dehydrogenating zone.
摘要翻译： 本公开涉及一种制备丁二烯的方法。 该方法涉及非氧化催化脱氢丁烷，以获得含有丁烷，1-丁烯，2-丁烯，丁二烯，氢和二次成分的产物气流。 然后将产物气流的1-丁烯和2-丁烯氧化脱氢，得到含有丁烷，2-丁烯，丁二烯，氢气，蒸汽和二级成分的第二气流。 接下来，将丁烷，2-丁烯和丁二烯与第二气流分离，然后从丁二烯产物中分离丁烷和2-丁烯。 然后将丁烷和2-丁烯循环到非氧化催化脱氢区。
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公开(公告)号：US07488858B2
公开(公告)日：2009-02-10
申请号：US10584785
申请日：2004-12-30
IPC分类号： C07C5/333
CPC分类号： C07C5/333 , C07C5/48 , C07C11/167
摘要： The disclosure involves a process for preparing butadiene from n-butane. In the process, n-butane is first dehydrogenated autothermally under nonoxidative conditions to form a gas stream. The gas stream is then oxidatively dehydrogenated to form a second gas stream. From the second gas stream, a third gas stream containing n-butane, 2-butene and butadiene is obtained. From the third gas stream, a butadiene/butaine product stream is obtained and remaining n-butane and 2-butene is recycled into the first dehydrogenation zone.
摘要翻译： 本公开涉及从正丁烷制备丁二烯的方法。 在此过程中，正丁烷首先在非氧化条件下自热脱氢形成气流。 然后将气流氧化脱氢以形成第二气流。 从第二气流中获得含有正丁烷，2-丁烯和丁二烯的第三气流。 从第三气流中获得丁二烯/丁内酯产物流，并将剩余的正丁烷和2-丁烯再循环到第一脱氢区中。
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公开(公告)号：US07488857B2
公开(公告)日：2009-02-10
申请号：US10584783
申请日：2004-12-30
申请人： Thorsten Johann , Götz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Marcus Sigl , Mark Duda
发明人： Thorsten Johann , Götz-Peter Schindler , Andreas Brodhagen , Sven Crone , Regina Benfer , Marcus Sigl , Mark Duda
IPC分类号： C07C5/333
CPC分类号： C07C5/327 , C07C5/333 , C07C5/48 , C07C11/167
摘要： The disclosure involves a process for the preparation of butadiene and 1-butene. The process includes at least a first catalytic dehydrogenation of n-butane to obtain a gas stream which is followed by at least a second oxidative dehydrogenation to form a second gas stream. The second gas stream is then subjected to distillation and isomeration steps to obtain butadiene and 1-butene.
摘要翻译： 本公开涉及制备丁二烯和1-丁烯的方法。 该方法至少包括正丁烷的第一催化脱氢以获得气流，随后进行至少第二氧化脱氢以形成第二气流。 然后将第二气流进行蒸馏和异构化步骤以获得丁二烯和1-丁烯。
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公开(公告)号：US07518024B2
公开(公告)日：2009-04-14
申请号：US10577198
申请日：2004-10-27
摘要： A process for preparing 1-butene from 1-butane, which includes providing a n-butane-containing feed gas stream; introducing of the n-butane-containing feed gas stream into at least one dehydrogenation zone and nonoxidative catalytic dehydrogenation of n-butane; removing hydrogen, the low-boiling secondary constituents and optionally water vapor to give a C4 product gas stream containing 10-80% by volume of n-butane, 5-40% by volume of 1-butene, 10-50% by volume of 2-butene, 0-40% by volume of butadiene and 0-10% by volume of further gas constituents; introducing the C4 product gas stream containing 10-80% by volume of n-butane, 10-60% by volume of 1-butene, 15-60% by volume of 2-butene, 0-5% by volume of butadiene and 0-10% by volume of further gas constituents, into a selective hydrogenation zone and selective hydrogenation of butadiene to 1- and/or 2-butene to give stream consisting essentially of n-butane, 1-butene and 2-butene; and separating of the stream distillation into a desired product.
摘要翻译： 一种从1-丁烷制备1-丁烯的方法，其包括提供含正丁烷的原料气流; 将含正丁烷的进料气流引入至少一个脱氢区和正丁烷的非氧化催化脱氢; 去除氢气，低沸点次级组分和任选的水蒸汽，得到含有10-80体积％正丁烷的C4产物气流，5-40体积％的1-丁烯，10-50体积％ 2-丁烯，0-40体积％的丁二烯和0-10体积％的其它气体组分; 引入含有10-80体积％正丁烷的C4产物气流，10-60体积％的1-丁烯，15-60体积％的2-丁烯，0-5体积％的丁二烯和0 -10％体积的进一步气体组分转化为选择性加氢区，并将丁二烯选择性氢化为1-和/或2-丁烯，得到基本上由正丁烷，1-丁烯和2-丁烯组成的物流; 并将料流蒸馏分离成所需产物。
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公开(公告)号：US07485761B2
公开(公告)日：2009-02-03
申请号：US10595551
申请日：2004-10-27
申请人： Götz-Peter Schindler , Andreas Brodhagen , Thorsten Johann , Thomas Hill , Marcus Sigl , Regina Benfer
发明人： Götz-Peter Schindler , Andreas Brodhagen , Thorsten Johann , Thomas Hill , Marcus Sigl , Regina Benfer
IPC分类号： C07C5/333
CPC分类号： C07C5/333 , C07C5/05 , C07C5/2506 , C07C7/08 , C07C11/08
摘要： A process for preparing 1-butene, which includes nonoxidatively, catalytically dehydrogenating n-butane to obtain a product gas stream of n-butane, 1-butene, 2-butene, butadiene, hydrogen, and secondary constituents; removing hydrogen and the secondary constituents to obtain a C4 product gas stream; separating the C4 product stream into a recycle stream of n-butane and a stream of 1-butene, 2-butene and butadiene by extractive distillation, and recirculating the recycle stream to the dehydrogenation zone; introducing the 1 -butene, 2-butene and butadiene stream into a selective hydrogenation zone and selective hydrogenation of butadiene to 1-butene and/or 2-butene to obtain a stream of 1-butene and 2-butene; introducing the 1-butene and 2-butene stream, and a circulating stream of 1-butene and 2-butene into a distillation zone and isolation of a product stream; and introducing the 2-butene-containing stream into an isomerization zone to obtain a circulating stream of 1-butene and 2-butene, and recirculating the circulating stream to the distillation zone.
摘要翻译： 一种制备1-丁烯的方法，其包括非氧化催化脱氢的正丁烷，以获得正丁烷，1-丁烯，2-丁烯，丁二烯，氢和二次成分的产物气流; 除去氢气和次要成分以获得C4产物气流; 通过萃取蒸馏将C4产物流分离成正丁烷和1-丁烯，2-丁烯和丁二烯的再循环流，并将再循环流再循环到脱氢区; 将1-丁烯，2-丁烯和丁二烯流引入选择性氢化区，并将丁二烯选择性氢化成1-丁烯和/或2-丁烯，得到1-丁烯和2-丁烯的物流; 将1-丁烯和2-丁烯流以及1-丁烯和2-丁烯的循环流引入蒸馏区并分离产物流; 并将含2-丁烯的物流引入异构化区以获得1-丁烯和2-丁烯的循环流，并将循环流再循环到蒸馏区。
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公开(公告)号：US20070161841A1
公开(公告)日：2007-07-12
申请号：US10577198
申请日：2004-10-27
摘要： A) Provision of an n-butane-containing feed gas stream a; B) introduction of the n-butane-containing feed gas stream a into at least one dehydrogenation zone and nonoxidative catalytic dehydrogenation of n-butane to give a product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, low-boiling secondary constituents, hydrogen and possibly water vapor, C) removal of hydrogen, the low-boiling secondary constituents and, if appropriate, water vapor to give a C4 product gas stream c consisting essentially of n-butane, 1-butene, 2-butene and butadiene; D) introduction of the C4 product gas stream c consisting essentially of n-butane, 1-butene, 2-butene and butadiene into a selective hydrogenation zone and selective hydrogenation of butadiene to 1- and/or 2-butene to give a stream d consisting essentially of n-butane, 1-butene and 2-butene; E) separation of the stream d into a desired product stream e1 consisting essentially of 1-butene and a recycle stream e2 consisting essentially of 2-butene and n-butane and recirculation of the recycle stream e2 consisting essentially of 2-butene and n-butane to the dehydrogenation zone.
摘要翻译： A）提供含正丁烷的进料气流a; B）将含正丁烷的原料气流a引入至少一个脱氢区和正丁烷的非氧化催化脱氢，得到包含正丁烷，1-丁烯，2-丁烯，丁二烯， 低沸点二次成分，氢气和可能的水蒸汽，C）除去氢气，低沸点次级组分，如果合适的话，除去水蒸汽，得到基本上由以下组成的C 4 H 3产物气流c 正丁烷，1-丁烯，2-丁烯和丁二烯; D）将基本上由正丁烷，1-丁烯，2-丁烯和丁二烯组成的C 4 H 4产物气流c引入选择性氢化区，并将丁二烯选择性氢化成1-和/或 得到基本上由正丁烷，1-丁烯和2-丁烯组成的料流d; E）将流d分离成基本上由1-丁烯组成的所需产物流e1和基本上由2-丁烯和正丁烷组成的再循环流e2，再循环流体e2基本上由2-丁烯和正丁烯组成， 丁烷到脱氢区。
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10.发明授权Use of a supported catalyst containing precious metal for oxidative dehydrogenation 有权使用含贵金属的载体催化剂进行氧化脱氢公开(公告)号：US08779212B2
公开(公告)日：2014-07-15
申请号：US12933441
申请日：2009-03-16
CPC分类号： B01J31/1616 , B01J21/16 , B01J23/007 , B01J23/38 , B01J23/50 , B01J23/72 , B01J23/8926 , B01J37/0219 , B01J37/086 , B01J2231/763 , B01J2531/17 , C07C45/38 , C07C47/21
摘要： The use of a supported noble metal catalyst obtainable by applying a sparingly soluble noble metal compound to a support from solution or suspension, and subsequently treating thermally, for preparing olefinically unsaturated carbonyl compounds.
摘要翻译： 使用负载的贵金属催化剂，其通过将溶于或悬浮液的微溶贵金属化合物施加到载体上，随后热处理，制备烯属不饱和羰基化合物。
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