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公开(公告)号：US06407287B2
公开(公告)日：2002-06-18
申请号：US09800705
申请日：2001-03-07
IPC分类号： C07C5116
CPC分类号： C07C51/252 , C07C51/46 , C07C57/04
摘要： In a method for producing acrylic acid by the steps of a reaction of catalytic gas phase oxidation, absorbing the acrylic acid with an absorbent, and dehydrating the acrylic acid-containing aqueous solution, the method is characterized that the step of dehydration comprises adding and an azeotropic solvent, distilling the resultant mixture, and adjusting the acrylic acid concentration at the top of the column in the range of 0.06-0.80 wt. %, thereby preventing the bottoms of the azeotropic dehydration column from substantially containing the azeotropic solvent and water. As results, the acrylic acid is kept from forming a polymer in any of the distillation columns involved in the production, and effective utilization of acrylic acid.
摘要翻译： 在通过催化气相氧化反应，吸收丙烯酸和吸收剂的步骤和使含丙烯酸水溶液脱水的步骤来制备丙烯酸的方法中，脱水步骤包括加入和 共沸溶剂，蒸馏得到的混合物，并调节柱顶部的丙烯酸浓度为0.06-0.80wt。 ％，从而防止共沸脱水塔的底部基本上含有共沸溶剂和水。 结果，丙烯酸在生产中涉及的任何蒸馏塔中都不会形成聚合物，有效利用丙烯酸。
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公开(公告)号：US06831195B2
公开(公告)日：2004-12-14
申请号：US10224677
申请日：2002-08-21
IPC分类号： C07C2710
摘要： A method for producing an organic acid and/or an organic acid ester which utilizes a steam system permitting stable production of an organic acid and/or an organic acid ester and realizing a high thermal efficiency constantly relative to the waste heat generated in the process of the production is provided. More particularly, this invention concerns a method for the production of an organic acid and/or an organic acid ester, wherein heat generated in the process for producing an organic acid and/or an organic acid ester is recovered in the form of steam, and the steam is used in any of the following forms: {circle around (1)} thermal energy, {circle around (2)} dynamic energy, and {circle around (3)} electrical energy in the process for producing an organic acid and/or an organic acid ester.
摘要翻译： 一种生产有机酸和/或有机酸酯的方法，其利用允许有机酸和/或有机酸酯稳定生产的蒸汽系统，并相对于在 提供生产。 更具体地说，本发明涉及生产有机酸和/或有机酸酯的方法，其中在生产有机酸和/或有机酸酯的方法中产生的热量以蒸汽的形式回收， 蒸汽以下列任何一种形式使用：{围绕（1个热能，{围绕（2个动态能量）和{围绕周围（在产生有机酸和/或有机酸酯的方法中为3个电能 。
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公开(公告)号：US06848501B2
公开(公告)日：2005-02-01
申请号：US10356428
申请日：2003-01-31
申请人： Harunori Hirao , Yukihiro Matsumoto , Sei Nakahara , Osamu Dodo , Tetsuji Mitsumoto , Takeshi Nishimura , Kazuhiko Sakamoto , Hiroo Iwato
发明人： Harunori Hirao , Yukihiro Matsumoto , Sei Nakahara , Osamu Dodo , Tetsuji Mitsumoto , Takeshi Nishimura , Kazuhiko Sakamoto , Hiroo Iwato
CPC分类号： F28D9/0068 , B01J19/002 , B01J2219/00252 , F28D7/1607 , F28D7/1623 , F28D9/0062 , F28F9/0278 , F28F19/00 , F28F2250/102
摘要： In an apparatus provided with a plate type heat exchanger as a heater and/or a cooler and operated to treat a gas containing an easily blocking substance, a method for preventing the plate type heat exchanger from being blocked is disclosed which is characterized by i) setting the width of a flow path on a plate of the plate type heat exchanger in the apparatus in a range of 6-25 mm and ii) setting the average flow rate of the gas passing the plate type heat exchanger in the apparatus per unit cross-sectional area of the flow path on the plate in the range of 3-15 m/s. In the exchange of heat of an easily blocking substance by the use of a plate type heat exchanger, a method for preventing the plate type heat exchanger from blockage is disclosed which has the plate type heat exchanger provided in the port for introducing a gas containing an easily blocking substance with a gas dispersion plate. This invention, in the heat exchange of an effluent gas emanating from a process for the production of (meth)acrylic acid or an ester thereof or the disposal of the gas, significantly allays blockage of the interior of the plate type heat exchanger.
摘要翻译： 在设置有作为加热器和/或冷却器的板式热交换器并且被操作以处理含有易阻塞物质的气体的装置中，公开了一种防止板式热交换器被堵塞的方法，其特征在于i） 将设备中板式热交换器的板上的流路宽度设置在6-25mm的范围内，以及ii）将通过板式热交换器的气体的平均流量设置在每单位十字的装置中 板上流路的截面面积在3-15 m / s的范围内。 在通过使用板式热交换器交换容易堵塞物质的热的情况下，公开了一种防止板式热交换器堵塞的方法，其具有设置在用于引入含有 用气体分散板容易地堵塞物质。 本发明在从（甲基）丙烯酸或其酯的制备方法产生的流出气体的热交换或气体的处理中显着地阻止了板式热交换器的内部堵塞。
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公开(公告)号：US20060009655A1
公开(公告)日：2006-01-12
申请号：US11221213
申请日：2005-09-07
CPC分类号： F28D7/0066 , B01J8/067 , B01J2208/00212 , B01J2208/00256 , B01J2208/00716 , B01J2219/00006 , C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要： A method for quickly starting up a reactor and a reactor system therefor are provided. A shell-and-tube reactor in the system is adapted to circulate a heat medium having a solid point in the range of 50-250° C. to the outside of the reaction tubes and characterized by initiating temperature elevation of the reactor by introducing a gas of a temperature in the range of 100-400° C. to the reaction tubes' side and then circulating the heat medium in a heated state to the outside of the reaction tubes. By introducing a gas of an elevated temperature preparatorily to the reaction tubes, it is made possible to prevent the heat medium after circulation from being solidified again and enable the reactor to be quickly started up.
摘要翻译： 提供了一种用于快速启动反应器及其反应器系统的方法。 系统中的管壳式反应器适于将具有在50-250℃范围内的固点的热介质循环到反应管的外部，并且其特征在于通过引入反应器的温度升高 将温度在100-400℃范围内的气体加到反应管侧，然后将加热的热介质循环到反应管的外部。 通过将升温的气体预先引入反应管，可以防止循环后的热介质再次固化，使反应器快速启动。
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公开(公告)号：US06667419B1
公开(公告)日：2003-12-23
申请号：US09605219
申请日：2000-06-28
IPC分类号： C07C5142
CPC分类号： C07C45/783 , B01D53/18 , C07C51/42 , C07C47/22 , C07C57/04
摘要： A method for the absorption of (meth)acrylic acid and/or (meth)acrolein and an apparatus thereof which, in an absorption column adapted to cause an (meth)acrylic acid and/or (meth)acrolein-containing gas obtained in consequence of catalytic gas phase oxidation to come into countercurrent contact with a solvent, contemplate using a packing of relatively high efficiency in absorption disposed on the upstream side of the flow of a liquid containing the solvent and a packing and/or trays of relatively low performance of forming polymerization disposed on the downstream side thereof, in the column.
摘要翻译： 用于吸收（甲基）丙烯酸和/或（甲基）丙烯醛的方法及其装置，其在适于引起由此得到的（甲基）丙烯酸和/或（甲基）丙烯醛的气体的吸收塔中 的催化气相氧化以与溶剂逆流接触，考虑使用设置在含有溶剂的液体的流动的上游侧的吸收效率相对较高的填料和相对较低性能的填料和/或塔盘 在塔的下游侧形成聚合。
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公开(公告)号：US07468167B2
公开(公告)日：2008-12-23
申请号：US11221213
申请日：2005-09-07
CPC分类号： F28D7/0066 , B01J8/067 , B01J2208/00212 , B01J2208/00256 , B01J2208/00716 , B01J2219/00006 , C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要： A method for quickly starting up a reactor and a reactor system therefor are provided. A shell-and-tube reactor in the system is adapted to circulate a heat medium having a solid point in the range of 50-250° C. to the outside of the reaction tubes and characterized by initiating temperature elevation of the reactor by introducing a gas of a temperature in the range of 100-400° C. to the reaction tubes' side and then circulating the heat medium in a heated state to the outside of the reaction tubes. By introducing a gas of an elevated temperature preparatorily to the reaction tubes, it is made possible to prevent the heat medium after circulation from being solidified again and enable the reactor to be quickly started up.
摘要翻译： 提供了一种用于快速启动反应器及其反应器系统的方法。 系统中的管壳式反应器适于将具有在50-250℃范围内的固点的热介质循环到反应管的外部，并且其特征在于通过引入反应器的温度升高 将温度在100-400℃范围内的气体加到反应管侧，然后将加热的热介质循环到反应管的外部。 通过将升温的气体预先引入反应管，可以防止循环后的热介质再次固化，使反应器快速启动。
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公开(公告)号：US06946573B2
公开(公告)日：2005-09-20
申请号：US09845694
申请日：2001-04-30
IPC分类号： B01J19/00 , B01J12/00 , B01J19/24 , C07C45/35 , C07C47/22 , C07C51/235 , C07C51/25 , C07C57/05 , C07C57/055 , F28D7/00 , C07C57/02
CPC分类号： F28D7/0066 , B01J8/067 , B01J2208/00212 , B01J2208/00256 , B01J2208/00716 , B01J2219/00006 , C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要： A method for quickly starting up a reactor and a reactor system therefor are provided. A shell-and-tube reactor in the system is adapted to circulate a heat medium having a solid point in the range of 50-250° C. to the outside of the reaction tubes and characterized by initiating temperature elevation of the reactor by introducing a gas of a temperature in the range of 100-400° C. to the reaction tubes' side and then circulating the heat medium in a heated state to the outside of the reaction tubes. By introducing a gas of an elevated temperature preparatorily to the reaction tubes, it is made possible to prevent the heat medium after circulation from being solidified again and enable the reactor to be quickly started up.
摘要翻译： 提供了一种用于快速启动反应器及其反应器系统的方法。 系统中的管壳式反应器适于将具有在50-250℃范围内的固点的热介质循环到反应管的外部，并且其特征在于通过引入反应器的温度升高 将温度在100-400℃范围内的气体加到反应管侧，然后将加热的热介质循环到反应管的外部。 通过将升温的气体预先引入反应管，可以防止循环后的热介质再次固化，使反应器快速启动。
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8.发明授权公开(公告)号：US07282118B2
公开(公告)日：2007-10-16
申请号：US09828093
申请日：2001-04-06
CPC分类号： B01D3/225 , B01D3/326 , Y10S203/11
摘要： This invention resides in providing a method for the prevention of possible polymerization of the easily polymerizable substance during the purification thereof by a column provided with (a) at least one tray directly fixed to a support ring with a bolt and a nut and/or (b) at least one tray fixed to a support ring with a vertical clamp or a distillation column provided in the lower part thereof with a splash collision plate.
摘要翻译： 本发明在于提供一种防止易于聚合的物质在其净化过程中可能的聚合的方法，所述塔具有（a）至少一个直接用螺栓和螺母固定在支撑环上的托盘和/或（ b）至少一个托架，其具有垂直夹具或蒸馏塔固定在支撑环上，该塔板在其下部设有飞溅碰撞板。
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9.发明申请Reactor filled with solid particle and gas-phase catalytic oxidation with the reactor 有权反应器用反应器填充固体颗粒和气相催化氧化公开(公告)号：US20070003460A1
公开(公告)日：2007-01-04
申请号：US11498426
申请日：2006-08-03
CPC分类号： B01J8/067 , B01J8/001 , B01J2208/00044 , B01J2208/00061 , B01J2208/00212 , B01J2208/00513 , B01J2208/00539 , B01J2208/021 , B01J2208/025 , B01J2219/00777
摘要： A shell-and tube reactor including at least one reaction tube with a measuring means, substantially same solid particles being filled in the reaction tubes with or without the measuring means, a length of the filled solid particle layer, and a pressure drop thereof while passing a gas through the reaction tube, per each reaction tube, being substantially the same, respectively. By measuring the temperature of the catalyst particle layer, such a temperature as a representative can be gasped.
摘要翻译： 包括具有测量装置的至少一个反应管的管壳式反应器，在具有或不具有测量装置的反应管中填充基本相同的固体颗粒，填充的固体颗粒层的长度及其通过时的压降 通过反应管的每个反应管的气体分别基本相同。 通过测量催化剂颗粒层的温度，可以将诸如代表性的温度气化。
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公开(公告)号：US06525216B1
公开(公告)日：2003-02-25
申请号：US09588834
申请日：2000-06-07
IPC分类号： C07C5142
CPC分类号： C07C51/252 , B01D3/009 , B01D3/143 , B01D53/1487 , B01J2219/00006 , C07C51/44 , Y02P20/127 , C07C57/04
摘要： A method of manufacturing (meth)acrylic acid includes: a reaction step of carrying out a catalytic gas-phase oxidation reaction; an absorbing step of absorbing (meth)acrylic acid from a (meth)acrylic-acid-containing mixed gas prepared in the reaction step; a refinement step of separating, refining, and recovering (meth)acrylic acid from a (meth)acrylic-acid-containing liquid prepared in the absorbing step; and a recirculation step of recirculating (meth)acrylic acid contained in a vent gas produced in the refinement step to the absorbing step and/or the refinement step.
摘要翻译： 制备（甲基）丙烯酸的方法包括：进行催化气相氧化反应的反应步骤;从（甲基）丙烯酸混合气体中吸收（甲基）丙烯酸的吸收步骤 反应步骤;从在吸收步骤中制备的（甲基）丙烯酸的液体中分离，精制和回收（甲基）丙烯酸的精制步骤; 以及将在精炼步骤中产生的排气中包含的（甲基）丙烯酸再循环到吸收步骤和/或精制步骤的再循环步骤。
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