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公开(公告)号：US08088962B2
公开(公告)日：2012-01-03
申请号：US11813935
申请日：2006-01-16
申请人： Catharina Klanner , Götz-Peter Schindler , Sven Crone , Frieder Borgmeier , Mark Duda , Falk Simon
发明人： Catharina Klanner , Götz-Peter Schindler , Sven Crone , Frieder Borgmeier , Mark Duda , Falk Simon
IPC分类号： C07C5/333
CPC分类号： C07C5/3337 , C07C7/08 , C07C11/167
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。
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公开(公告)号：US07495138B2
公开(公告)日：2009-02-24
申请号：US11722278
申请日：2005-12-19
IPC分类号： C07C5/333
CPC分类号： C07C5/333 , C07C11/167
摘要： A process for preparing butadiene, comprising nonoxidatively dehydrogenating n-butane from a stream (a) in a first dehydrogenation zone to obtain stream (b) comprising 1-butene, 2-butene, and butadiene; oxidatively dehydrogenating the 1-butene and 2-butene of (b) in the presence of an oxygenous gas in a second dehydrogenation zone to obtain stream (c) comprising n-butane, butadiene, hydrogen, and steam; compressing and cooling (c) to obtain stream (d2) comprising n-butane, butadiene, hydrogen, and steam; extractively distilling (d2) into stream (e1) comprising butadiene and stream (e2) comprising n-butane, hydrogen, and steam; optionally compressing and cooling (e2) to obtain stream (f1) comprising n-butane and water and stream (f2) comprising n-butane and hydrogen and optionally recycling (f1) into the first dehydrogenation zone; separating (f2) into stream (g1) comprising n-butane and stream (g2) comprising hydrogen by contacting (f2) with a high boiling absorbent and subsequently desorbing the gas constituents dissolved in the absorbent.
摘要翻译： 一种制备丁二烯的方法，包括在第一脱氢区中从流（a）中非氧化脱氢的正丁烷获得包含1-丁烯，2-丁烯和丁二烯的料流（b） 在第二脱氢区中在有氧气体存在下使（b）的1-丁烯和2-丁烯氧化脱氢，得到包含正丁烷，丁二烯，氢和蒸汽的料流（c） 压缩并冷却（c）以获得包含正丁烷，丁二烯，氢气和蒸汽的流（d2）; 将包含丁二烯的流（e1）和包含正丁烷，氢气和蒸汽的物流（e2）萃取蒸馏（d2） 任选地压缩和冷却（e2）以获得包含正丁烷和水的流（f1）和包含正丁烷和氢气的流（f2），并任选地再循环（f1）到第一脱氢区中; 通过使（f2）与高沸点吸收剂接触并随后解吸溶解在吸收剂中的气体组分，将（f2）分离成包含正丁烷和包含氢的流（g2）（g1）的流（g1）。
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公开(公告)号：US07435860B2
公开(公告)日：2008-10-14
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, comprising nonoxidatively dehydrogenating n-butane from a stream (a) in a first dehydrogenation zone to obtain stream (b) comprising 1-butene and 2-butene; oxidatively dehydrogenating the 1-butene and 2-butene of (b) in the presence of an oxygenous gas in a second dehydrogenation zone to obtain stream (c) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; compressing and cooling (c) to obtain stream (d2) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; extractively distilling (d2) into stream (e1) comprising butadiene and stream (e2) comprising n-butane, hydrogen, carbon dioxide, and steam; compressing and cooling (e2) to obtain stream (f1) comprising n-butane and water and stream (f2) comprising n-butane, hydrogen, and carbon dioxide; cooling (f2) to obtain stream (g1) comprising n-butane and stream (g2) comprising carbon dioxide and hydrogen; phase separating water from (f1) to obtain stream (h1) comprising n-butane; and recycling (h1) into the first dehydrogenation zone.
摘要翻译： 一种制备丁二烯的方法，包括在第一脱氢区中从流（a）中非氧化脱氢的正丁烷获得包含1-丁烯和2-丁烯的料流（b） 在第二脱氢区中在有氧气体存在下使（b）的1-丁烯和2-丁烯氧化脱氢以得到包含正丁烷，丁二烯，氢，二氧化碳和蒸汽的流（c） 压缩并冷却（c）以获得包含正丁烷，丁二烯，氢气，二氧化碳和蒸汽的流（d2）; 将包含丁二烯的流（e1）和包含正丁烷，氢气，二氧化碳和蒸汽的物流（e2）萃取蒸馏（d2） 压缩和冷却（e2）以获得包含正丁烷和水的流（f1）和包含正丁烷，氢气和二氧化碳的物流（f2）; 冷却（f2）以获得包含正丁烷的流（g1）和包含二氧化碳和氢气的流（g2）; 将（f1）的水相分离以获得包含正丁烷的流（h1）; 和再循环（h1）进入第一个脱氢区。
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公开(公告)号：US07417173B2
公开(公告)日：2008-08-26
申请号：US11718814
申请日：2005-11-11
IPC分类号： C07C5/333
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; (1) 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 recylce 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; （1）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回流; 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。
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公开(公告)号：US20080183024A1
公开(公告)日：2008-07-31
申请号：US11813935
申请日：2006-01-16
申请人： Catharina Klanner , Gotz-Peter Schindler , Sven Crone , Frieder Borgmeier , Mark Duda , Falk Simon
发明人： Catharina Klanner , Gotz-Peter Schindler , Sven Crone , Frieder Borgmeier , Mark Duda , Falk Simon
IPC分类号： C07C5/327
CPC分类号： C07C5/3337 , C07C7/08 , C07C11/167
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。
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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。
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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。
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公开(公告)号：US20080119680A1
公开(公告)日：2008-05-22
申请号：US11722278
申请日：2005-12-19
IPC分类号： C07C5/333
CPC分类号： C07C5/333 , C07C11/167
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 steam, with or without carbon oxides and with or without inert gases; 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, steam, with or without carbon oxides and with or without inert gases; 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 and steam, with or without carbon oxides and with or without inert gases; 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 and steam, with or without carbon oxides and with or without inert gases, F) if appropriate compressing in one or more further compression stages 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 and hydrogen, with or without carbon oxides and with or without inert gases, and if appropriate recycling the condensate stream f1 into the first dehydrogenation zone; G) separating the gas stream f2 into a recycle stream g1 comprising n-butane and an offgas stream g2 comprising hydrogen, with or without carbon oxides and with or without inert gases, by contacting the gas stream f2 with a high-boiling absorbent and subsequently desorbing the gas constituents dissolved in the absorbent.
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公开(公告)号：US20080269536A1
公开(公告)日：2008-10-30
申请号：US11817599
申请日：2006-03-03
IPC分类号： C07C5/48
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, 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, nitrogen, carbon monoxide, carbon dioxide, steam, if appropriate hydrogen and if appropriate 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) uncondensable or low-boiling gas constituents are removed by contacting the 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, if appropriate hydrogen and if appropriate oxygen;E) the Ca hydrocarbon stream d1 is cooled and if appropriate compressed to obtain a gaseous or liquid Ca hydrocarbon stream e1; F) the C3 hydrocarbon stream e1 is if appropriate 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) the stream e1 or 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, the stream g2 being recirculated at least partially 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）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，氮气，一氧化碳，二氧化碳，蒸汽，如果合适的氢气和适当的氧气; 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）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 O 3烃流d 1和 废气流d 2包括甲烷，乙烷，乙烯，氮气，一氧化碳，二氧化碳，如果合适的氢气和适当的氧气; E）将Ca烃流d 1冷却并适当压缩以获得气态或液态Ca烃流e 1; F）如果适当地将C 3烃流e 1加入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; 将流e 1或f 1进料到（第二）蒸馏区并蒸馏分离成由丙烯组成的产物流g 1和由丙烷组成的料流g 2，流g 2至少部分再循环至 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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