公开(公告)号：US07037411B2

公开(公告)日：2006-05-02

申请号：US10871577

申请日：2004-06-21

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Hirochika Hosaka ,  Yoshiro Suzuki ,  Mitsuo Nakamura

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Hirochika Hosaka ,  Yoshiro Suzuki ,  Mitsuo Nakamura

IPC分类号： B01D3/10 ,  B01D35/02 ,  C02F51/44 ,  F04B39/16

CPC分类号： C07C51/44 ,  B01D3/14 ,  B01J2219/00006 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00247 ,  B01J2219/00254 ,  C07C67/54 ,  Y10S203/07 ,  Y10S203/09 ,  Y10S203/22 ,  Y10T137/0396 ,  Y10T137/1044 ,  Y10T137/86083 ,  Y10T137/86718 ,  C07C57/04 ,  C07C69/54

摘要： In an apparatus capable of distilling and refining an easily polymerizable substance, piping is performed so that when a strainer in action is switched to a backup strainer, the strainer can be switched after removing air in the backup strainer to replace air in the backup strainer with a discharge liquid of a pump. According to the apparatus, switching the strainers installed on an upstream side of the pump for extracting a liquid of a vacuum distillation column, which distills and refines the easily polymerizable substance, can be performed with no trouble during operation of the distillation column. When the apparatus includes a device for measuring a differential pressure between an upstream side and a downstream side of the strainer in action, two or more strainers installed in parallel can be switched at proper times and the easily polymerizable substance can be produced efficiently.

摘要翻译： 在能够蒸馏和精炼易聚合物质的装置中，进行配管，使得当将过滤器在作用中切换到后备过滤器时，可以在除去备用过滤器中的空气之后切换过滤器以更换备用过滤器中的空气， 泵的排出液体。 根据该装置，可以在蒸馏塔运转时，无需麻烦地切换安装在泵的上游侧的用于抽出真空蒸馏塔的液体的过滤器，该真空蒸馏塔蒸馏并精制易溶于水的物质。 当装置包括用于测量过滤器的上游侧和下游侧之间的压差的装置时，可以适当地切换并联安装的两个或更多个过滤器，并且可以有效地生产易于聚合的物质。

公开(公告)号：US20050054874A1

公开(公告)日：2005-03-10

申请号：US10849170

申请日：2004-05-20

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Hirochika Hosaka

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Hirochika Hosaka

IPC分类号： C07C51/44 ,  C07C67/327 ,  C07C67/54 ,  C07C67/48 ,  C07C51/42

CPC分类号： C07C67/327 ,  C07C51/44 ,  C07C67/54 ,  C07C57/04 ,  C07C69/54

摘要： The invention provides a process for producing and/or purifying acrylic acid or methacrylic acid and an ester of these, wherein high-boiling heavy ingredients (high-boiling matters) discharged from individual step units are classified by the content therein of (meth)acrylic acid and/or of the dimer thereof and treated. According to the invention, even when high-boiling matters which have been discharged from distillation columns, high-boiling-matter cracking reactors, and the like in a plant for producing (meth)acrylic acid and/or an ester thereof and are alike in liquid nature are mixed with each other in the same tank, no polymer precipitation occurs. The handling and storage thereof are hence easy. Consequently, tanks can be united into one, and the process is extremely advantageous in reducing the construction cost and the area necessary for equipment.

摘要翻译： 本发明提供一种生产和/或纯化丙烯酸或甲基丙烯酸及其酯的方法，其中从各个步骤单元排出的高沸点重质成分（高沸点物质）通过（甲基）丙烯酸类 酸和/或其二聚体并处理。 根据本发明，即使在用于制造（甲基）丙烯酸和/或其酯的设备中的蒸馏塔，高沸点物质裂化反应器等排出的高沸点物质也是相似的 液体性质在相同的罐中相互混合，不会发生聚合物沉淀。 因此，其处理和储存容易。 因此，罐可以组合成一体，并且该方法在降低设备所需的施工成本和面积方面是非常有利的。

公开(公告)号：US20050038290A1

公开(公告)日：2005-02-17

申请号：US10863511

申请日：2004-06-09

申请人： Yasuyuki Sakakura ,  Shuhei Yada ,  Hirochika Hosaka ,  Yasushi Ogawa ,  Yoshiro Suzuki

发明人： Yasuyuki Sakakura ,  Shuhei Yada ,  Hirochika Hosaka ,  Yasushi Ogawa ,  Yoshiro Suzuki

IPC分类号： C07B61/00 ,  C07C45/35 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C51/16 ,  C07C45/90

CPC分类号： C07C51/235 ,  C07C45/35 ,  C07C51/25 ,  C07C47/22 ,  C07C57/04

摘要： In the process for producing (meth)acrolein or (meth)acrylic acid, which comprises feeding a raw material of the (meth)acrolein or (meth)acrylic acid, and a molecular oxygen-containing gas mixed with a diluting gas and compressed by a compressor, to an oxidation reactor to conduct a catalytic gas-phase oxidation reaction therebetween; feeding the obtained reaction gas to an absorption column to contact with water; recovering an aqueous solution of the (meth)acrolein or (meth)acrylic acid from a bottom of the absorption column and an exhaust gas from a top of the absorption column; and recycling a part or whole of the thus recovered exhaust gas to use as the diluting gas, the temperature of the mixed gas at a suction inlet of the compressor is controlled to a temperature higher than a dew point thereof. According to the process of the present invention, the compressor is prevented from suffering from clogging or damage thereto.

摘要翻译： 在制备（甲基）丙烯醛或（甲基）丙烯酸的方法中，其包括将（甲基）丙烯醛或（甲基）丙烯酸的原料和与稀释气体混合的含分子氧的气体进料并由 一个压缩机，到一个氧化反应器，在它们之间进行催化气相氧化反应; 将获得的反应气体进料到吸收塔以与水接触; 从吸收塔的底部回收（甲基）丙烯醛或（甲基）丙烯酸的水溶液和来自吸收塔的顶部的废气; 并且将这样回收的废气的一部分或全部再循环用作稀释气体，将压缩机的吸入口处的混合气体的温度控制在高于其露点的温度。 根据本发明的方法，防止压缩机堵塞或损坏压缩机。

公开(公告)号：US07067695B2

公开(公告)日：2006-06-27

申请号：US11064020

申请日：2005-02-23

申请人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno

发明人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno

IPC分类号： C07C51/21

CPC分类号： C07C51/215 ,  B01J8/067 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/0023 ,  C07C45/33 ,  C07C45/35 ,  C07C51/00 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04

摘要： An object of the present invention is to provide a method of vapor phase catalytic oxidation which is capable of: efficiently removing heat of reaction; preventing the formation of hot spots; and efficiently providing a desired product. The invention provides a method of vapor phase catalytic oxidation of a substance to be oxidized with a gas containing molecular oxygen by means of a multitubular reactor, wherein the method comprises: performing a reaction of vapor phase catalytic oxidation under such conditions that a heat transfer coefficient of the heat medium is 1,000 W/(m2·K) or higher.

摘要翻译： 本发明的目的是提供一种气相催化氧化方法，其能够有效地除去反应热; 防止热点形成; 并有效地提供期望的产品。 本发明提供了一种通过多管反应器的含有分子氧气体进行氧化的物质的气相催化氧化方法，其中所述方法包括：在这样的条件下进行气相催化氧化反应：传热系数 的热介质为1000W /（m 2·2K）以上。

公开(公告)号：US07528281B2

公开(公告)日：2009-05-05

申请号：US10864492

申请日：2004-06-10

申请人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno ,  Teruo Saito

发明人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno ,  Teruo Saito

IPC分类号： C07C51/16

CPC分类号： B01J8/003 ,  B01J8/0085 ,  B01J8/067 ,  B01J23/002 ,  B01J23/28 ,  B01J23/31 ,  B01J23/8876 ,  B01J35/026 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00513 ,  B01J2208/00539 ,  B01J2208/00663 ,  B01J2208/00752 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/12 ,  B01J2523/13 ,  B01J2523/305 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

摘要： An object of the present invention is to provide a method for vapor phase catalytic oxidation which is almost free of variations in reaction states in respective reaction tubes of the fixed bed multi-tube heat-exchanger type reactor.Provided is a method for vapor phase catalytic oxidation for obtaining a reaction product gas by using a fixed bed multi-tube heat-exchanger type reactor provided with a plurality of reaction tubes and by feeding a raw material gas inside the reaction tubes packed with a catalyst, wherein the method comprises:adjusting pressure losses of the respective reaction tubes so that the pressure losses of the respective reaction tubes after catalyst packing is within ±20% of an average pressure loss of the reaction tubes by: packing an inert substance at a raw material gas inlet portion of the reaction tubes or removing and re-packing the catalyst packed, for a reaction tube having a pressure loss lower than the average pressure loss of the reaction tubes; and removing and re-packing the catalyst packed, for a reaction tube having a pressure loss higher than the average pressure loss of the reaction tubes.

摘要翻译： 本发明的目的是提供一种气相催化氧化方法，其几乎不含固定床多管式热交换器型反应器各反应管中的反应状态的变化。 本发明提供一种气相催化氧化法，其特征在于，使用具有多个反应管的固定床多管式热交换型反应器，在反应管内填充有催化剂的原料气体 其中所述方法包括：调节各反应管的压力损失，使得在催化剂填充之后各反应管的压力损失在反应管的平均压力损失的±20％内，通过以下方式包装惰性物质： 反应管的原料气体入口部分或者拆卸并重新填充催化剂，对于压力损失低于反应管的平均压力损失的反应管; 并且对于具有高于反应管的平均压力损失的压力损失的反应管，除去并重新填充催化剂。

公开(公告)号：US20050020852A1

公开(公告)日：2005-01-27

申请号：US10923739

申请日：2004-08-24

申请人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno

发明人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno

IPC分类号： C07B61/00 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C51/16 ,  C07C51/235

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

摘要： In a process for producing a (meth)acrylic acid compound by catalytic vapor phase oxidation, the (meth)acrylic acid compound is produced constantly and efficiently by preventing the change in the composition of the raw material mixed gas, the abnormal temperature increase in the oxidation reactor and the deterioration of the catalytic activity or the useful catalyst life. In the process for producing (meth)acrolein or (meth)acrylic acid by the catalytic vapor phase oxidation reaction of propylene, propane or isobutylene in the oxidation reactor, the temperature of the raw material mixed gas introduced to the oxidation reactor is maintained to be at least the dew point temperature of the raw material mixed gas.

摘要翻译： 在通过催化气相氧化制备（甲基）丙烯酸化合物的方法中，通过防止原料混合气体的组成变化，使（甲基）丙烯酸化合物的异常温度升高 氧化反应器和催化活性的恶化或有用的催化剂寿命。 在氧化反应器中通过丙烯，丙烷或异丁烯的催化气相氧化反应生产（甲基）丙烯醛或（甲基）丙烯酸的方法中，导入氧化反应器的原料混合气体的温度保持为 至少原料混合气体的露点温度。

公开(公告)号：US06998505B2

公开(公告)日：2006-02-14

申请号：US10923739

申请日：2004-08-24

申请人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno

发明人： Shuhei Yada ,  Hirochika Hosaka ,  Kimikatsu Jinno

IPC分类号： C07C51/16

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

摘要： In a process for producing a (meth)acrylic acid compound by catalytic vapor phase oxidation, the (meth)acrylic acid compound is produced constantly and efficiently by preventing the change in the composition of the raw material mixed gas, the abnormal temperature increase in the oxidation reactor and the deterioration of the catalytic activity or the useful catalyst life. In the process for producing (meth)acrolein or (meth)acrylic acid by the catalytic vapor phase oxidation reaction of propylene, propane or isobutylene in the oxidation reactor, the temperature of the raw material mixed gas introduced to the oxidation reactor is maintained to be at least the dew point temperature of the raw material mixed gas.

摘要翻译： 在通过催化气相氧化制备（甲基）丙烯酸化合物的方法中，通过防止原料混合气体的组成变化，使（甲基）丙烯酸化合物的异常温度升高 氧化反应器和催化活性的恶化或有用的催化剂寿命。 在氧化反应器中通过丙烯，丙烷或异丁烯的催化气相氧化反应生产（甲基）丙烯醛或（甲基）丙烯酸的方法中，导入氧化反应器的原料混合气体的温度保持为 至少原料混合气体的露点温度。

公开(公告)号：US20070270610A1

公开(公告)日：2007-11-22

申请号：US11587990

申请日：2004-10-20

申请人： Kimikatsu Jinno ,  Yusushi Ogawa ,  Yoshiro Suzuki ,  Shuhei Yada

发明人： Kimikatsu Jinno ,  Yusushi Ogawa ,  Yoshiro Suzuki ,  Shuhei Yada

IPC分类号： C07C45/27

CPC分类号： C07C51/252 ,  B01J23/002 ,  B01J23/8876 ,  B01J23/94 ,  B01J38/12 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  Y02P20/584 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/12 ,  B01J2523/13 ,  B01J2523/305 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

摘要： An object of the invention is to provide a method for producing a reaction gas including (meth)acrylic acid or (meth)acrolein by carrying out a catalytic gas phase oxidation process by supplying propylene, propane, or isobutylene and a gas containing molecular oxygen into a reactor having a catalyst filled therein, wherein such a method is provided, which does not lower the reaction activity of a catalyst and selectivity of target products when re-starting the running after shutdown of the catalytic gas phase oxidation process. The invention relates to a method for producing (meth)acrylic acid or (meth)acrolein, comprising a catalytic gas phase oxidation process for producing (meth)acrylic acid or (meth)acrolein by supplying propylene, propane, or isobutylene and a gas containing molecular oxygen in a reactor having a catalyst filled therein, wherein a gas containing molecular oxygen is supplied in a reactor having the catalyst filled therein during shutdown of the catalytic gas phase oxidation process.

摘要翻译： 本发明的目的是提供一种通过将丙烯，丙烷或异丁烯和含有分子氧的气体进行催化气相氧化处理来制备包含（甲基）丙烯酸或（甲基）丙烯醛的反应气体的方法， 其中填充有催化剂的反应器，其中提供了这样的方法，其在催化气相氧化过程停止后重新启动运行时不降低催化剂的反应活性和目标产物的选择性。 本发明涉及一种制备（甲基）丙烯酸或（甲基）丙烯醛的方法，包括通过供应丙烯，丙烷或异丁烯和含有（甲基）丙烯醛的气体制备（甲基）丙烯酸或（甲基）丙烯醛）的催化气相氧化方法 在其中填充催化剂的反应器中的分子氧，其中在催化气相氧化过程停止期间，在其中填充有催化剂的反应器中供应包含分子氧的气体。

公开(公告)号：US07667072B2

公开(公告)日：2010-02-23

申请号：US12081916

申请日：2008-04-23

申请人： Shuhei Yada ,  Hirochika Hosaka ,  Teruo Saito ,  Yoshiro Suzuki

发明人： Shuhei Yada ,  Hirochika Hosaka ,  Teruo Saito ,  Yoshiro Suzuki

IPC分类号： C07C51/16

CPC分类号： B01J8/003 ,  B01J8/0085 ,  B01J8/067 ,  B01J23/002 ,  B01J23/28 ,  B01J23/31 ,  B01J23/8876 ,  B01J35/026 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00513 ,  B01J2208/00539 ,  B01J2208/00663 ,  B01J2208/00752 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/12 ,  B01J2523/13 ,  B01J2523/305 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

摘要： An object of the present invention is to provide a method for vapor phase catalytic oxidation which is almost free of variations in reaction states in respective reaction tubes of the fixed bed multi-tube heat-exchanger type reactor.Provided is a method for vapor phase catalytic oxidation for obtaining a reaction product gas by using a fixed bed multi-tube heat-exchanger type reactor provided with a plurality of reaction tubes and by feeding a raw material gas inside the reaction tubes packed with a catalyst, wherein the method comprises:adjusting pressure losses of the respective reaction tubes so that the pressure losses of the respective reaction tubes after catalyst packing is within ±20% of an average pressure loss of the reaction tubes by: packing an inert substance at a raw material gas inlet portion of the reaction tubes or removing and re-packing the catalyst packed, for a reaction tube having a pressure loss lower than the average pressure loss of the reaction tubes; and removing and re-packing the catalyst packed, for a reaction tube having a pressure loss higher than the average pressure loss of the reaction tubes.

摘要翻译： 本发明的目的是提供一种气相催化氧化方法，其几乎不含固定床多管式热交换器型反应器各反应管中的反应状态的变化。 本发明提供一种气相催化氧化法，其特征在于，使用具有多个反应管的固定床多管式热交换型反应器，在反应管内填充有催化剂的原料气体 其中所述方法包括：调节各反应管的压力损失，使得在催化剂填充之后各反应管的压力损失在反应管的平均压力损失的±20％内，通过以下方式包装惰性物质： 反应管的原料气体入口部分或者拆卸并重新填充催化剂，对于压力损失低于反应管的平均压力损失的反应管; 并且对于具有高于反应管的平均压力损失的压力损失的反应管，除去并重新填充催化剂。

公开(公告)号：US07476299B2

公开(公告)日：2009-01-13

申请号：US11399470

申请日：2006-04-07

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kenji Takasaki

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kenji Takasaki

IPC分类号： B01D1/30 ,  B01D3/14 ,  B01D3/32 ,  B01J19/00

CPC分类号： B01D3/14 ,  B01D3/322 ,  Y10S159/02 ,  Y10S159/901 ,  Y10S203/22 ,  Y10S203/90

摘要： A decomposition reaction apparatus or distillation apparatus for acrylic acid in which a column bottom liquid heated in a reboiler (5) is supplied from a supply port (1a) provided on a side wall of a column body (1) having: a top plate (12a) above the supply port (1a); and an impingement plate (12b) provided vertically to the top plate (12a), for preventing scattering of the column bottom liquid to a supply direction. The top plate (12a) is provided such that the top face of the top plate (12a) is inclined downward from a base end to a tip end. The present invention allows: suppression of formation of a polymerized product due to flowing of a liquid or gas heated in a reboiler into a column with a simple structure; and a stable continuous operation of column equipment over a long period of time.

摘要翻译： 一种用于丙烯酸的分解反应装置或蒸馏装置，其中在再沸器（5）中加热的塔底液体从设置在具有顶板的塔体（1）的侧壁上的供应口（1a）供应 12a）在供应口（1a）上方; 以及垂直于顶板（12a）设置的冲击板（12b），用于防止塔底液体向供给方向的散射。 顶板（12a）设置成使得顶板（12a）的顶面从基端向尖端向下倾斜。 本发明允许：抑制由于在再沸器中加热的液体或气体流入具有简单结构的塔中的聚合产物的形成; 并长期稳定地连续运行立柱设备。