公开(公告)号：US20050148782A1

公开(公告)日：2005-07-07

申请号：US10503983

申请日：2003-02-04

申请人： Sebastian Storck ,  Frank Rosowski ,  Michael Baier ,  Andreas Tenten ,  hans-Josef Wolf

发明人： Sebastian Storck ,  Frank Rosowski ,  Michael Baier ,  Andreas Tenten ,  hans-Josef Wolf

IPC分类号： C07D307/89 ,  B01J23/22 ,  B01J35/00 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31

CPC分类号： C07C51/265 ,  B01J23/22 ,  B01J35/0006 ,  C07C51/313 ,  C07C63/16

摘要： Process for preparing phthalic anhydride by gas-phase oxidation of xylene, naphthalene or mixtures thereof in a shell-and-tube reactor thermostatted by means of a heat transfer medium over three or more different fixed-bed catalysts arranged in zones, wherein the process is carried out so that the maximum temperature in the second catalyst zone in the flow direction is up to 50° C. lower than the maximum temperature in the first catalyst zone and the maximum temperature in the third zone from the gas inlet is from 30 to 100° C. lower than that in the first catalyst zone. The process of the present invention makes it possible to prepare phthalic anhydride in high yields under industrially relevant conditions.

摘要翻译： 在通过在三个或更多个不同的固定床催化剂上排列的区域中的传热介质进行恒温的壳管式反应器中通过气相氧化二甲苯，萘或其混合物来制备邻苯二甲酸酐的方法，其中该方法是 使得第二催化剂区域在流动方向上的最高温度比第一催化剂区域中的最高温度低至50℃，并且从气体入口处的第三区域中的最高温度为30至100℃ ℃，低于第一催化剂区域。 本发明的方法可以在工业上相关的条件下以高收率制备邻苯二甲酸酐。

公开(公告)号：US07151184B2

公开(公告)日：2006-12-19

申请号：US10503983

申请日：2003-02-04

申请人： Sebastian Storck ,  Frank Rosowski ,  Michael Baier ,  Andreas Tenten ,  Hans-Josef Wolf

发明人： Sebastian Storck ,  Frank Rosowski ,  Michael Baier ,  Andreas Tenten ,  Hans-Josef Wolf

IPC分类号： C07D307/89

CPC分类号： C07C51/265 ,  B01J23/22 ,  B01J35/0006 ,  C07C51/313 ,  C07C63/16

摘要： Process for preparing phthalic anhydride by gas-phase oxidation of xylene, naphthalene or mixtures thereof in a shell-and-tube reactor thermostatted by means of a heat transfer medium over three or more different fixed-bed catalysts arranged in zones, wherein the process is carried out so that the maximum temperature in the second catalyst zone in the flow direction is up to 50° C. lower than the maximum temperature in the first catalyst zone and the maximum temperature in the third zone from the gas inlet is from 30 to 100° C. lower than that in the first catalyst zone.The process of the present invention makes it possible to prepare phthalic anhydride in high yields under industrially relevant conditions.

摘要翻译： 在通过在三个或更多个不同的固定床催化剂上排列的区域中的传热介质进行恒温的壳管式反应器中通过气相氧化二甲苯，萘或其混合物来制备邻苯二甲酸酐的方法，其中该方法是 使得第二催化剂区域在流动方向上的最高温度比第一催化剂区域中的最高温度低至50℃，并且从气体入口处的第三区域中的最高温度为30至100℃ ℃，低于第一催化剂区域。 本发明的方法可以在工业上相关的条件下以高收率制备邻苯二甲酸酐。

公开(公告)号：US20110028740A1

公开(公告)日：2011-02-03

申请号：US12936648

申请日：2009-04-07

申请人： Cornelia Dobner ,  Ulf Dietrich ,  Thomas Mackewitz ,  Sebastian Storck ,  Hagen Wilmer ,  Frank Rosowski ,  Andreas Tenten

发明人： Cornelia Dobner ,  Ulf Dietrich ,  Thomas Mackewitz ,  Sebastian Storck ,  Hagen Wilmer ,  Frank Rosowski ,  Andreas Tenten

IPC分类号： C07D307/89 ,  C07D307/36 ,  C07C51/347 ,  C07C63/00 ,  C07C63/04

CPC分类号： C07C51/265 ,  C07C63/16

摘要： What is described is a method for starting a gas phase oxidation reactor that contains a bed of a first catalyst whose active material comprises a catalytically active silver-vanadium oxide bronze, and at least one bed of a second catalyst whose catalytically active material comprises vanadium pentoxide and titanium dioxide, and whose temperature is controllable by means of a heat transfer medium. In the operating state, a gas stream which comprises a loading cop of a hydrocarbon and molecular oxygen is passed through the reactor over the bed of the first and second catalyst at a temperature Top of the heat transfer medium. For the startup, a) a gas stream is passed through the reactor with a starting loading c0 which is less than cop, and at a starting temperature T0 of the heat transfer medium which is less than Top, and b) the temperature of the heat transfer medium is brought to Top and the loading of the gas stream to cop. The process combines a short startup time without exceedance of emissions or quality requirements, long catalyst lifetime, high yield and low formation of by-products.

摘要翻译： 描述的是一种起始气相氧化反应器的方法，该反应器含有一种第一催化剂床，其活性物质包含催化活性的银 - 钒氧化物青铜，以及至少一个第二催化剂床，其催化活性物质包含五氧化二钒 和二氧化钛，其温度可通过传热介质控制。 在操作状态下，在传热介质的温度Top下，将包含烃和分子氧的负载管的气流在第一和第二催化剂的床上通过反应器。 对于启动，a）气流通过反应器，起动负载c0小于保护时间，并且传热介质的起始温度T0小于Top，b）热量的温度 转移介质被带到顶部并将气流装载到管路中。 该过程结合了启动时间短，而不会超过排放或质量要求，长催化剂寿命，高产率和低副产物形成。

公开(公告)号：US06812351B2

公开(公告)日：2004-11-02

申请号：US10220703

申请日：2002-09-05

申请人： Jens Weiguny ,  Sebastian Storck ,  Andreas Tenten

发明人： Jens Weiguny ,  Sebastian Storck ,  Andreas Tenten

IPC分类号： C07D30760

CPC分类号： C07C51/215 ,  B01J23/002 ,  B01J27/198 ,  B01J35/026 ,  B01J35/1014 ,  B01J35/1038 ,  B01J2523/00 ,  C07C57/145 ,  B01J2523/51 ,  B01J2523/55

摘要： A catalyst used in a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms by means of oxygen-containing gases comprises a catalytically active composition comprising vanadium, phosphorus and oxygen and has a essentially hollow cylindrical structure in which (a) the ratio of the height h to the diameter of the continuous hole d2 is not more than 1.5 and (b) the ratio of the geometric surface area Ageo to the geometric volume Vgeo is at least 2 mm−1.

公开(公告)号：US06803473B2

公开(公告)日：2004-10-12

申请号：US10220746

申请日：2002-09-05

申请人： Jens Weiguny ,  Sebastian Storck ,  Andreas Tenten ,  Wilhelm Ruppel

发明人： Jens Weiguny ,  Sebastian Storck ,  Andreas Tenten ,  Wilhelm Ruppel

IPC分类号： C07D30760

CPC分类号： B01J8/067 ,  B01J2208/00212 ,  B01J2208/0053 ,  C07C51/215 ,  C07C57/145

摘要： In a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms using oxygen-containing gases in the presence of a volatile phosphorus compound over a catalyst comprising vanadium, phosphorus and oxygen in a shell-and-tube reactor unit having at least two successive cooled reaction zones, the temperature of the first reaction zone is from 350 to 450° C. and the temperature of the second and further reaction zones is from 350 to 480° C. and the temperature difference between the hottest reaction zone and the coolest reaction zone is at least 2° C.

摘要翻译： 在使用含氧气体的挥发性磷化合物存在下，在包含钒，磷和氧的催化剂存在下，通过异构催化气相氧化具有至少四个碳原子的烃来制备马来酸酐的方法， 管式反应器单元具有至少两个连续冷却的反应区，第一反应区的温度为350-450℃，第二反应区和其它反应区的温度为350-480℃，温度差为 最热的反应区和最冷的反应区为至少2℃

公开(公告)号：US08106220B2

公开(公告)日：2012-01-31

申请号：US12301370

申请日：2007-05-18

申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

IPC分类号： C07D307/89

CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene, in which a gaseous mixture of o-xylene and an oxygenous gas is converted in a main reactor to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, the heat of reaction which arises in the main reactor being removed at least partly by indirect cooling with a heat carrier medium, and the intermediate reaction product being introduced into a postreactor. The concentration of unconverted o-xylene in the intermediate reaction product is at least 1% by weight, and the sum of the concentrations of phthalic anhydride underoxidation products in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法，其中邻二甲苯和氧气的气体混合物在主反应器中转化为包含未转化的邻二甲苯的气态中间体反应产物， 邻苯二甲酸酐脱氧产物和邻苯二甲酸酐，至少部分通过用载热介质间接冷却除去主反应器中产生的反应热，并将中间反应产物引入后反应器中。 中间反应产物中未转化的邻二甲苯的浓度为至少1重量％，中间反应产物中邻苯二甲酸酐未氧化产物的浓度之和为至少0.5重量％。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

公开(公告)号：US20090198073A1

公开(公告)日：2009-08-06

申请号：US12301352

申请日：2007-05-18

申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

IPC分类号： C07D317/46

CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene. In, in a main reactor, a gaseous mixture of o-xylene and an oxygenous gas is passed through at least two reaction zones whose temperature can be controlled independently, and converted to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, and the intermediate reaction product is introduced into a postreactor, wherein the temperature of the reaction zones in the main reactor is regulated in such a way that the concentration of unconverted o-xylene in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法。 在主反应器中，邻二甲苯和氧气的气态混合物通过至少两个反应区，其温度可独立控制，并转化成气态中间反应产物，其包含未转化的邻二甲苯，邻苯二甲酸酐 未反应产物和邻苯二甲酸酐，并将中间反应产物引入后反应器中，其中主反应器中反应区的温度调节为使中间反应产物中未转化的邻二甲苯的浓度至少为 0.5重量％。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

公开(公告)号：US06781017B2

公开(公告)日：2004-08-24

申请号：US10297602

申请日：2002-12-13

申请人： Otto Machhammer ,  Goetz-Peter Schindler ,  Andreas Tenten ,  Klaus Harth ,  Peter Zehner ,  Klaus Joachim Müller-Engel ,  Frank Rosowski ,  Frieder Borgmeier

发明人： Otto Machhammer ,  Goetz-Peter Schindler ,  Andreas Tenten ,  Klaus Harth ,  Peter Zehner ,  Klaus Joachim Müller-Engel ,  Frank Rosowski ,  Frieder Borgmeier

IPC分类号： C07C4500

CPC分类号： C07C51/215 ,  C07C5/333 ,  C07C45/33 ,  C07C45/35 ,  C07C51/252 ,  C07C11/06 ,  C07C47/22 ,  C07C57/04

摘要： In a process for the preparation of acrolein or acrylic acid or a mixture thereof from propane, the propane is subjected, in a first reaction stage, to a partial dehydrogenation under heterogeneous catalysis to give propene, of the components contained in the product gas mixture formed in the first reaction stage other than propene and propane at least a portion of the molecular hydrogen present is then separated off from said mixture and the product gas mixture is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propylene oxidation, molecular nitrogen being present for diluting the reaction gas mixture during the propylene oxidation.

摘要翻译： 在从丙烷制备丙烯醛或丙烯酸或其混合物的方法中，丙烷在第一反应阶段中在非均相催化下进行部分脱氢以形成产物气体混合物中所含组分的丙烯 在除丙烯和丙烷之外的第一反应阶段中，存在的分子氢的至少一部分然后从所述混合物中分离出来，然后将产物气体混合物用于通过气相催化丙烯制备丙烯醛和/或丙烯酸 存在氧化，分子氮，用于在丙烯氧化期间稀释反应气体混合物。

公开(公告)号：US08153825B2

公开(公告)日：2012-04-10

申请号：US12301352

申请日：2007-05-18

申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

IPC分类号： C07D307/89

CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene, in, in a main reactor, a gaseous mixture of o-xylene and an oxygenous gas is passed through at least two reaction zones whose temperature can be controlled independently, and converted to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, and the intermediate reaction product is introduced into a postreactor, wherein the temperature of the reaction zones in the main reactor is regulated in such a way that the concentration of unconverted o-xylene in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法，在主反应器中，邻二甲苯和氧气的气态混合物通过至少两个温度可独立控制的反应区 并转化为包含未转化的邻二甲苯，邻苯二甲酸酐未氧化产物和邻苯二甲酸酐的气态中间反应产物，将中间反应产物引入后反应器中，其中主反应器中的反应区的温度如此调节 在中间反应产物中未转化的邻二甲苯的浓度为至少0.5重量％的方式。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。

公开(公告)号：US20090156835A1

公开(公告)日：2009-06-18

申请号：US12301370

申请日：2007-05-18

申请人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

发明人： Thomas Mackewitz ,  Frank Rosowski ,  Andreas Tenten

IPC分类号： C07D307/89

CPC分类号： C07D307/89 ,  C07C51/265 ,  C07C63/16

摘要： A process is described for preparing phthalic anhydride by catalytic gas phase oxidation of o-xylene, in which a gaseous mixture of o-xylene and an oxygenous gas is converted in a main reactor to a gaseous intermediate reaction product which comprises unconverted o-xylene, phthalic anhydride underoxidation products and phthalic anhydride, the heat of reaction which arises in the main reactor being removed at least partly by indirect cooling with a heat carrier medium, and the intermediate reaction product being introduced into a postreactor. The concentration of unconverted o-xylene in the intermediate reaction product is at least 1% by weight, and the sum of the concentrations of phthalic anhydride underoxidation products in the intermediate reaction product is at least 0.5% by weight. The process allows an increase in the overall yield of phthalic anhydride without or without significant deterioration in the product quality.

摘要翻译： 描述了通过邻二甲苯的催化气相氧化制备邻苯二甲酸酐的方法，其中邻二甲苯和氧气的气体混合物在主反应器中转化为包含未转化的邻二甲苯的气态中间体反应产物， 邻苯二甲酸酐脱氧产物和邻苯二甲酸酐，至少部分通过用载热介质间接冷却除去主反应器中产生的反应热，并将中间反应产物引入后反应器中。 中间反应产物中未转化的邻二甲苯的浓度为至少1重量％，中间反应产物中邻苯二甲酸酐未氧化产物的浓度之和为至少0.5重量％。 该方法允许邻苯二甲酸酐的总产率提高，而不会产生质量的显着劣化。