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：US20080234522A1

公开(公告)日：2008-09-25

申请号：US12081916

申请日：2008-04-23

申请人： Shuhei Yada ,  Masayasu Goriki ,  Hirochika Hosaka ,  Kimikatsu Jinno ,  Teruo Saito ,  Yoshiro Suzuki

发明人： Shuhei Yada ,  Masayasu Goriki ,  Hirochika Hosaka ,  Kimikatsu Jinno ,  Teruo Saito ,  Yoshiro Suzuki

IPC分类号： C07C45/33 ,  C07C45/35 ,  C07C51/25 ,  B01J8/02

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.

公开(公告)号：US07368601B2

公开(公告)日：2008-05-06

申请号：US11526730

申请日：2006-09-26

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Kenji Takasaki ,  Masayasu Goriki

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Kenji Takasaki ,  Masayasu Goriki

IPC分类号： C07C51/42

CPC分类号： C07C51/44 ,  B01D3/14 ,  B01D3/146 ,  B01D3/42 ,  B01D3/4211 ,  C07C67/54 ,  C07C57/04 ,  C07C69/54

摘要： In the stopping and starting operations of a distillation column used for producing (meth)acrylic acids according to the present invention, upon stopping the operation of the distillation column, the heating of a reboiler attached thereto is interrupted and then the reboiler is rapidly cooled; and/or upon starting the operation of the distillation column for production of the (meth)acrylic acids, an inner wall surface of the distillation column is heated to a temperature higher than a condensation temperature of the (meth)acrylic acids and the operation of the distillation column is started under the heated condition. According to the present invention, it is possible to early and safely stop the operation of the distillation column while preventing the occurrence of polymerization within the distillation column, and stably perform an operation for distillation of acrylic monomers for a long period of time.

摘要翻译： 在根据本发明的用于生产（甲基）丙烯酸的蒸馏塔的停止和开始操作中，停止蒸馏塔的操作后，连接的再沸器的加热被中断，然后再沸器被快速冷却; 和/或在开始用于生产（甲基）丙烯酸的蒸馏塔的操作时，将蒸馏塔的内壁表面加热到高于（甲基）丙烯酸的冷凝温度的温度和 蒸馏塔在加热条件下启动。 根据本发明，能够在避免蒸馏塔内发生聚合的同时，早日安全地停止蒸馏塔的运转，并且能够长时间稳定地进行丙烯酸类单体的蒸馏操作。

公开(公告)号：US07188639B2

公开(公告)日：2007-03-13

申请号：US10840612

申请日：2004-05-07

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Masayasu Goriki

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Masayasu Goriki

IPC分类号： F16K49/00 ,  F17D1/16

CPC分类号： B01J19/00 ,  B01J2219/00006 ,  B01J2219/00083 ,  B01J2219/00247 ,  B01J2219/00252 ,  B01J2219/00254 ,  Y10T137/0391 ,  Y10T137/6416 ,  Y10T137/6579 ,  Y10T137/85978

摘要： A storage tank for an easily polymerizable compound has acceptance piping and delivery piping with a circulation line directly connecting the acceptance piping to the delivery piping or with circulation lines respectively connecting the acceptance piping to the storage tank and the storage tank to the delivery piping. A method of storing an easily polymerizable compound in the storage tank includes circulating the compound in the storage tank through the circulation line(s), where the compound can be (meth)acrylic acid being produced and/or purified with the temperature of purified (meth)acrylic acid being supplied to or removed from the storage tank being regulated to not be higher than the temperature thereof in the tank. A method of joining pipes for-transporting a corrosive liquid using flanges, bolts, and nuts made of a material having resistance to corrosion by the corrosive liquid.

摘要翻译： 用于容易聚合的化合物的储罐具有接收管道和输送管道，其具有将接收管线直接连接到输送管线的循环管线或分别将接收管路连接到储罐和储存箱的输送管线的循环管线。 将容易聚合的化合物储存在储罐中的方法包括使化合物在储罐中循环通过循环管线，其中化合物可以是纯化的（...）的温度产生和/或纯化的（甲基）丙烯酸 甲基）丙烯酸被提供给或从储罐中取出被调节为不高于罐中的温度。 使用由腐蚀性液体具有耐腐蚀性的材料制成的法兰，螺栓和螺母来连接输送腐蚀性液体的管道的方法。

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：US20050131254A1

公开(公告)日：2005-06-16

申请号：US11049106

申请日：2005-02-03

申请人： Shuhei Yada ,  Hirochika Hosaka ,  Masayasu Goriki ,  Kimikatsu Jinno ,  Yasushi Ogawa ,  Yoshiro Suzuki

发明人： Shuhei Yada ,  Hirochika Hosaka ,  Masayasu Goriki ,  Kimikatsu Jinno ,  Yasushi Ogawa ,  Yoshiro Suzuki

IPC分类号： B01J8/06 ,  C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  C07C51/16 ,  B01J8/04

CPC分类号： B01J35/026 ,  B01J8/06 ,  B01J8/067 ,  B01J23/002 ,  B01J23/8876 ,  B01J2208/00221 ,  B01J2208/0053 ,  B01J2208/00716 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  C07C51/252 ,  F28D7/1607 ,  F28D2021/0022 ,  F28F9/026 ,  F28F9/028 ,  F28F9/22 ,  F28F2265/10 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/12 ,  B01J2523/13 ,  B01J2523/22 ,  B01J2523/305 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

摘要： A multitube reactor, wherein tubes having smaller tolerance between a nominal size and actual sizes are used as reaction tubes to stably perform a high yield reaction for a long period, a catalyst is filled into the reaction tubes so that the catalyst layer peak temperature portions of the reaction tubes are not overlapped with the connection sites thereof with baffles to effectively prevent hot spots from occurring and stably perform a reaction for a long period without the clogging of the reaction tubes, a heat medium and raw material gas are allowed to flow in the direction of a countercurrent and a specified type of catalyst is filled into the reaction tubes so that activity is increased from the inlet of the raw material gas to the outlet thereof to prevent the autooxidation of products so as to prevent equipment from being damaged due to the reaction, and, at the time of starting, gas with a temperature of 100 to 400° C. is led to the outside of the reaction tubes to increase the temperature of the reaction tubes and, a heat medium, which is solid at the room temperature, is heated to circulate to the outside of the reaction tubes to efficiently start up the reactor without affecting the activity of the catalyst.

摘要翻译： 使用多管反应器，其中具有公称尺寸和实际尺寸之间的较小公差的管用作反应管以长期稳定地进行高产率反应，将催化剂填充到反应管中，使得催化剂层峰值温度部分 反应管不与其连接位置与挡板重叠，以有效地防止热点发生并且长时间稳定地进行反应而不会使反应管堵塞，允许热介质和原料气体流入 将反向的方向和特定类型的催化剂填充到反应管中，使得活性从原料气体的入口到其出口增加，以防止产品的自氧化，从而防止设备因为 反应，并且在起始时，将温度为100〜400℃的气体导入反应管的外部以增加 反应管的温度和在室温下为固体的热介质被加热以循环到反应管的外部，以有效启动反应器而不影响催化剂的活性。

公开(公告)号：US20070021631A1

公开(公告)日：2007-01-25

申请号：US11527451

申请日：2006-09-27

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

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

IPC分类号： C07C51/16 ,  C07C45/28

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

摘要： (1) In a gas-phase catalytic oxidation process for conducting gas-phase catalytic oxidation reaction using a fixed bed multipipe type reactor having reaction tubes filled with a catalyst while feeding a reaction raw gas thereinto, the catalyst is filled in each of the reaction tubes of the fixed bed multipipe type reactor to form two or more catalyst layers having different catalytic activities from each other in a direction of the oxidation reaction, and the catalyst layer disposed nearest to a reaction raw gas inlet of the reaction tube has a higher catalytic activity than that of the next catalyst layer adjacent thereto, or (2) in a process for producing (meth)acrolein or (meth)acrylic acid by subjecting a raw material of the (meth)acrolein or (meth)acrylic acid, and molecular oxygen or a molecular oxygen-containing gas to gas-phase catalytic oxidation reaction using a fixed bed multipipe type reactor having two or more catalyst layers in an axial direction of each of reaction tubes provided in the reactor, a difference between maximum and minimum reaction peak temperatures of the respective catalyst layers in the axial direction of the reaction tube is not more than 20° C. According to these processes, formation of hot spots in the catalyst can be efficiently prevented.

摘要翻译： （1）在使用固定床多管式反应器进行气相催化氧化反应的气相催化氧化反应器中，在反应管中装入催化剂，同时向其中加入反应原料气体，在每个反应中填充催化剂 固定床多管式反应器的管，在氧化反应的方向上形成具有彼此不同的催化活性的两个以上的催化剂层，最靠近反应管的反应原料气体入口设置的催化剂层具有较高的催化剂 活性高于与其相邻的下一催化剂层的活性，或（2）在（甲基）丙烯醛或（甲基）丙烯酸的原料和分子量 氧或含分子氧的气体进行气相催化氧化反应，使用在每个反应管的轴向上具有两个以上催化剂层的固定床多管型反应器 在反应器中设置反应管的轴向方向上的各催化剂层的最大和最小反应峰值温度之间的差不超过20℃。根据这些方法，可以有效地形成催化剂中的热点 防止了

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：US20070256921A1

公开(公告)日：2007-11-08

申请号：US11812716

申请日：2007-06-21

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Kenji Takasaki ,  Masayasu Goriki

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Kenji Takasaki ,  Masayasu Goriki

IPC分类号： B01D3/00

CPC分类号： C07C51/44 ,  B01D3/14 ,  B01D3/146 ,  B01D3/42 ,  B01D3/4211 ,  C07C67/54 ,  C07C57/04 ,  C07C69/54

摘要： In the stopping and starting operations of a distillation column used for producing (meth)acrylic acids according to the present invention, upon stopping the operation of the distillation column, the heating of a reboiler attached thereto is interrupted and then the reboiler is rapidly cooled; and/or upon starting the operation of the distillation column for production of the (meth)acrylic acids, an inner wall surface of the distillation column is heated to a temperature higher than a condensation temperature of the (meth)acrylic acids and the operation of the distillation column is started under the heated condition. According to the present invention, it is possible to early and safely stop the operation of the distillation column while preventing the occurrence of polymerization within the distillation column, and stably perform an operation for distillation of acrylic monomers for a long period of time.

摘要翻译： 在根据本发明的用于生产（甲基）丙烯酸的蒸馏塔的停止和开始操作中，停止蒸馏塔的操作后，连接的再沸器的加热被中断，然后再沸器被快速冷却; 和/或在开始用于生产（甲基）丙烯酸的蒸馏塔的操作时，将蒸馏塔的内壁表面加热到高于（甲基）丙烯酸的冷凝温度的温度和 蒸馏塔在加热条件下启动。 根据本发明，能够在避免蒸馏塔内发生聚合的同时，早日安全地停止蒸馏塔的运转，并且能够长时间稳定地进行丙烯酸类单体的蒸馏操作。

公开(公告)号：US20070021633A1

公开(公告)日：2007-01-25

申请号：US11526730

申请日：2006-09-26

申请人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Kenji Takasaki ,  Masayasu Goriki

发明人： Shuhei Yada ,  Yasushi Ogawa ,  Yoshiro Suzuki ,  Kimikatsu Jinno ,  Hirochika Hosaka ,  Kenji Takasaki ,  Masayasu Goriki

IPC分类号： C07C51/42

CPC分类号： C07C51/44 ,  B01D3/14 ,  B01D3/146 ,  B01D3/42 ,  B01D3/4211 ,  C07C67/54 ,  C07C57/04 ,  C07C69/54

摘要： In the stopping and starting operations of a distillation column used for producing (meth)acrylic acids according to the present invention, upon stopping the operation of the distillation column, the heating of a reboiler attached thereto is interrupted and then the reboiler is rapidly cooled; and/or upon starting the operation of the distillation column for production of the (meth)acrylic acids, an inner wall surface of the distillation column is heated to a temperature higher than a condensation temperature of the (meth)acrylic acids and the operation of the distillation column is started under the heated condition. According to the present invention, it is possible to early and safely stop the operation of the distillation column while preventing the occurrence of polymerization within the distillation column, and stably perform an operation for distillation of acrylic monomers for a long period of time.

摘要翻译： 在根据本发明的用于生产（甲基）丙烯酸的蒸馏塔的停止和开始操作中，停止蒸馏塔的操作后，连接的再沸器的加热被中断，然后再沸器被快速冷却; 和/或在开始用于生产（甲基）丙烯酸的蒸馏塔的操作时，将蒸馏塔的内壁表面加热到高于（甲基）丙烯酸的冷凝温度的温度和 蒸馏塔在加热条件下启动。 根据本发明，能够在避免蒸馏塔内发生聚合的同时，早日安全地停止蒸馏塔的运转，并且能够长时间稳定地进行丙烯酸类单体的蒸馏操作。