公开(公告)号：US20080021238A1

公开(公告)日：2008-01-24

申请号：US11569578

申请日：2004-09-07

申请人： Masahiko Yamagishi ,  Shuhei Yada ,  Kimikatsu Jinno

发明人： Masahiko Yamagishi ,  Shuhei Yada ,  Kimikatsu Jinno

IPC分类号： C07C51/00 ,  B01J19/00 ,  F28D21/00

CPC分类号： B01J8/067 ,  B01J2208/00053 ,  B01J2208/00061 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00256 ,  C07C51/215 ,  Y02P20/124 ,  Y02P20/51 ,  C07C57/04

摘要： (Meth)acrylic acid is produced using a reactor (1) through a vapor-phase catalytic oxidation reaction of propane or the like in a raw material gas, and the obtained reaction gas is distributed to a heat exchanger (20) and an absorption tower (30). Heat energy is recovered from the reaction gas supplied to the heat exchanger (20), and the reaction gas cooled in the heat exchanger (20) and the reaction gas distributed to the absorption tower (30) are supplied to the absorption tower (30). (Meth) acrylic acid is recovered from the reaction gas in an absorbing liquid, to thereby produce (meth) acrylic acid. The reaction gas is distributed to the heat exchanger (20) and the absorption tower (30) according to a pressure of the raw material gas at an inlet of the reactor (1). The present invention allows heat recovery from the reaction gas and a stable and continuous operation even when the heat exchanger for heat recovery is clogged.

摘要翻译： （甲基）丙烯酸通过原料气体中丙烷等的气相催化氧化反应使用反应器（1）制备，并将所得反应气体分配到热交换器（20）和吸收塔 （30）。 从供给到热交换器（20）的反应气体回收热能，在热交换器（20）中冷却的反应气体和分配到吸收塔（30）的反应气体供给到吸收塔30， 。 （甲基）丙烯酸从吸收液体中的反应气体中回收，由此生成（甲基）丙烯酸。 反应气体根据反应器（1）入口处的原料气体的压力而分配到热交换器（20）和吸收塔（30）。 即使在热回收用热交换器堵塞的情况下，本发明也能够从反应气体进行热回收和稳定连续的运转。

公开(公告)号：US07892403B2

公开(公告)日：2011-02-22

申请号：US11578237

申请日：2004-09-07

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

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

IPC分类号： B01D5/00 ,  C07C51/44 ,  C07C67/54 ,  C07C69/54

CPC分类号： B01D5/003 ,  B01D5/0078 ,  C07C51/50 ,  Y10S203/22 ,  C07C57/04

摘要： A condenser includes: a top face of a tube plate on which acrylic acid may be condensed inside the condenser; a spray for spreading a polymerization inhibitor on the tube plate; a first polymerization inhibitor supply tube for supplying the polymerization inhibitor to the spray; and a supporter for supporting the spray at a predetermined position. The supporter supports the first polymerization inhibitor supply tube outside the condenser. The condenser allows a stable continuous operation for a long period of time by preventing polymerization of an easily polymerizable compound in the condenser into which a vapor of an easily polymerizable compound is supplied with a simple structure thereof.

摘要翻译： 冷凝器包括：管板的顶面，丙烯酸可以在冷凝器内冷凝; 用于在管板上铺展阻聚剂的喷雾剂; 第一聚合抑制剂供应管，用于向喷雾器供应阻聚剂; 以及用于将喷雾支撑在预定位置的支撑件。 支撑体支持冷凝器外的第一个阻聚剂供应管。 冷凝器通过防止容易聚合的化合物在容易聚合的化合物的蒸气以其简单的结构供入的冷凝器中聚合而长期稳定的连续操作。

公开(公告)号：US07189872B2

公开(公告)日：2007-03-13

申请号：US10864498

申请日：2004-06-10

申请人： Shuhei Yada ,  Kiyoshi Takahashi ,  Kenji Takasaki ,  Yasushi Ogawa ,  Kimikatsu Jinno ,  Yoshiro Suzuki

发明人： Shuhei Yada ,  Kiyoshi Takahashi ,  Kenji Takasaki ,  Yasushi Ogawa ,  Kimikatsu Jinno ,  Yoshiro Suzuki

IPC分类号： C07C51/16 ,  C07C51/42

CPC分类号： B01D3/146 ,  C07C51/44 ,  C07C57/04

摘要： Clogging of a distillation column by polymerization caused by a change of the production rate of (meth)acrylic acid, is prevented to carry out a stabilized operation over a long period. A process for producing (meth)acrylic acid, which includes a purification step wherein a (meth)acrylic acid-containing material to be purified is supplied to and distilled by a distillation column, wherein during a cut operation in which the production rate of (meth)acrylic acid is reduced by α% relative to the production rate of (meth)acrylic acid during the ordinary operation, the liquid/gas flow rate in the distillation column is adjusted to be at least (100−α/2)% of the liquid/gas flow rate during the ordinary operation.

摘要翻译： 通过由（甲基）丙烯酸的生成速度的变化引起的聚合引起的蒸馏塔的堵塞被阻止长期进行稳定化的操作。 一种制备（甲基）丙烯酸的方法，其包括纯化步骤，其中将要纯化的（甲基）丙烯酸的物质供应到蒸馏塔并蒸馏，其中在其中生产速率（ 甲基）丙烯酸在常规操作中相对于（甲基）丙烯酸的生产速率降低α％，将蒸馏塔中的液/气流量调节至至少（100-α/ 2）％ 在普通操作期间的液/气流量。

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：US20080228001A1

公开(公告)日：2008-09-18

申请号：US11597365

申请日：2004-11-05

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

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

IPC分类号： C07C27/12 ,  C07C47/22

CPC分类号： B01J23/8876 ,  B01J23/002 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/252 ,  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： An object of the present invention is to provide a method for producing (meth)acrylic acid or (meth)acrolein by conducting a gas phase catalytic oxidation reaction with an oxygen-containing gas using as a raw material at least one substance to be oxidized selected from propylene, propane, isobutylene and (meth)acrolein using a multi-tubular reactor, which enables a high yield and stable production even when operating constantly with supplying the raw material in the maximum supply amount acceptable by the reactor or an amount close thereto.The invention is a method for producing (meth)acrylic acid or (meth)acrolein wherein, at the time of a start-up of the reaction, for a period of at least 20 hours or more after the supply amount of the raw material to the reactor per unit time reached 30% or more of the acceptable maximum supply amount of the raw material per unit time, the supply amount of the raw material per unit time is kept at 30% or more and less than 80% of the acceptable maximum supply amount.

摘要翻译： 本发明的目的是提供一种通过与含氧气体进行气相催化氧化反应来生产（甲基）丙烯酸或（甲基）丙烯醛的方法，该方法使用至少一种待氧化物质作为原料 使用多管式反应器由丙烯，丙烷，异丁烯和（甲基）丙烯醛组成，即使在以反应器可接受的最大供给量或其附近的量供给原料的情况下，也可以连续运转，能够实现高产率和稳定的生产。 本发明是一种生产（甲基）丙烯酸或（甲基）丙烯醛的方法，其中在反应开始时至少20小时以上，在原料供给量至 每单位时间的反应器达到每单位时间内可接受的原料最大供应量的30％以上，每单位时间的原料供应量保持在可接受最大值的30％以上且小于80％ 供应量

公开(公告)号：US07396957B2

公开(公告)日：2008-07-08

申请号：US10817955

申请日：2004-04-06

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： C07C43/32

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.

公开(公告)号：US20080014127A1

公开(公告)日：2008-01-17

申请号：US11596293

申请日：2004-10-25

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

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

IPC分类号： B01J19/00

CPC分类号： B01J23/8876 ,  B01J8/067 ,  B01J23/002 ,  B01J23/887 ,  B01J23/8885 ,  B01J23/8892 ,  B01J2208/00026 ,  B01J2208/00061 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00539 ,  B01J2219/00009 ,  B01J2219/002 ,  B01J2219/00202 ,  B01J2219/00218 ,  B01J2219/00234 ,  B01J2219/00238 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  C07C51/252 ,  C07C47/21 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/12 ,  B01J2523/13 ,  B01J2523/22 ,  B01J2523/30 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

摘要： An object of the present invention is to provide a pilot test method for suitably setting the reaction conditions for a gas-phase catalytic reaction using a multi-tube reactor, and an apparatus thereof. The present invention is a pilot test method in which a plurality of reaction tubes which are substantially the same as a reaction tube of a multi-tube rector and composed of at least one reaction tube having a means provided for measuring the temperature of a catalyst layer, and remaining reaction tubes having no temperature measuring means, are immersed in a heat medium, a given raw material gas is allowed to flow through the reaction tubes to react, the temperature of the catalyst layer is measured at this stage, the reaction result of the reaction product gas to be discharged is analyzed in the reaction tube having no temperature measuring means, and the reaction conditions of the multi-tube reactor are set so that the reaction at the temperature of the catalyst layer measured generates the reaction result analyzed.

摘要翻译： 本发明的目的是提供一种使用多管反应器适当地设定气相催化反应的反应条件的试验方法及其装置。 本发明是一种先导试验方法，其中多个反应管与多管反应器的反应管基本相同，并且由至少一个具有用于测量催化剂层的温度的装置的反应管组成 ，将没有温度测量装置的剩余反应管浸入热介质中，使给定的原料气体流过反应管进行反应，在此阶段测量催化剂层的温度， 在没有温度测量装置的反应管中分析要排出的反应产物气体，并且设定多管反应器的反应条件，使得测量的催化剂层的温度下的反应产生分析的反应结果。

公开(公告)号：US07297814B2

公开(公告)日：2007-11-20

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： C07C51/16 ,  C07C45/00 ,  B01J10/00 ,  F28D7/00

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：US07241919B2

公开(公告)日：2007-07-10

申请号：US11133184

申请日：2005-05-20

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： C07C57/02

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： The storage tank of the invention for an easily polymerizable compound is a storage tank having an acceptance piping and a delivery piping and is characterized by having a circulation line which directly connects the acceptance piping to the delivery piping or having circulation lines which respectively connect the acceptance piping to the storage tank and the storage tank to the delivery piping; the method of storing of the invention is characterized by storing an easily polymerizable compound in the storage tank while circulating the compound in the storage tank through the circulation line(s); the method of pipe jointing and apparatus therefor of the invention are a method of jointing pipes fitted to a handling apparatus in a production apparatus, storage apparatus, or the like for the purpose of transporting a corrosive liquid, the method being characterized in that the pipes are jointed with flanges, bolts, and nuts made of a material having resistance to corrosion by the corrosive liquid; the process for (meth)acrylic acid compound production of the invention is a process for producing and/or purifying a (meth)acrylic acid compound, and is characterized in that the temperature of a purified (meth)acrylic acid compound obtained which is being supplied to a storage tank is regulated so as to be not higher than the temperature of the purified (meth)acrylic acid compound residing in the storage tank; and the process of the invention for producing an easily polymerizable compound which is a (meth)acrylic acid compound is characterized in that the temperature of a (meth)acrylic acid compound-containing liquid which has been discharged as an off-specification product and is being supplied to a storage tank is regulated so as to be not higher than the temperature of the off-specification liquid stored in the storage tank.

摘要翻译： 用于易聚合化合物的本发明的储罐是具有接受管道和输送管道的储罐，其特征在于，具有将接收管道直接连接到输送管道的循环管线或具有分别连接接收的循环管线 管道到储罐和储罐到输送管道; 本发明的储存方法的特征在于，通过在循环管道中使化合物在储罐中循环而将容易聚合的化合物储存在储罐中; 本发明的管接头方法及其设备是在制造装置，储存装置等中装配于处理装置的管道的输送腐蚀性液体的方法，其特征在于，管道 与由腐蚀性液体具有腐蚀性的材料制成的法兰，螺栓和螺母接合; 本发明的（甲基）丙烯酸化合物的制造方法是（甲基）丙烯酸化合物的制造和/或纯化方法，其特征在于，得到的纯化的（甲基）丙烯酸化合物的温度为 调节供给到储罐的温度不高于存储在储罐中的纯化的（甲基）丙烯酸化合物的温度; 本发明的制备作为（甲基）丙烯酸化合物的易聚合性化合物的方法的特征在于，作为脱离规格的产品排出的（甲基）丙烯酸化合物的液体的温度为 被调节为不高于储存在储罐中的不合格液体的温度。

公开(公告)号：US20070043238A1

公开(公告)日：2007-02-22

申请号：US11451355

申请日：2006-06-13

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

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

IPC分类号： C07C51/16

CPC分类号： B01J23/002 ,  B01J23/8876 ,  B01J2523/00 ,  C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  C07C51/252 ,  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： An object of the present invention is to provide that, in a process for the production of (meth)acrolein or (meth)acrylic acid by a gas-phase catalytic oxidation reaction of a substance to be oxidized such as propylene, propane, isobutylene and (meth)acrolein with molecular oxygen or molecular oxygen-containing gas using a multi-tubular reactor equipped with one or more catalyst layer(s) in a direction of tube axis, a sudden rise of temperature is suppressed even after changing the reaction condition for raising the reaction temperature for enhancing the production velocity whereby inactivation of the catalyst is prevented and a stable production is carried out. The present invention relates to a process where a change in the reaction condition for raising the reaction temperature is conducted by changing the temperature of the heat medium for the adjustment of reaction temperature at the inlet equipped with the above-mentioned multi-tubular reactor and, at that time, (1) change in the inlet temperature of the heat medium is conducted at not higher than 2° C. for each changing operation and (2) when another changing operation is continuously conducted, the changing operation is conducted where the time interval from the changing operation immediately before that is made not shorter than 10 minutes.

摘要翻译： 本发明的目的是提供在通过气相催化氧化反应生成（甲基）丙烯醛或（甲基）丙烯酸的方法中，例如丙烯，丙烷，异丁烯和 （甲基）丙烯醛与分子氧或含分子氧的气体，使用在管轴方向上配备有一个或多个催化剂层的多管式反应器，甚至在改变反应条件之后也抑制了温度的突然升高 提高反应温度以提高生产速度，从而防止催化剂的失活并进行稳定的生产。 本发明涉及通过改变用于调节装有上述多管式反应器的入口处的反应温度的热介质的温度来进行提高反应温度的反应条件的变化的方法， 此时，（1）对于各变化动作，热介质的入口温度的变化不高于2℃，（2）当连续进行其他变更动作时，进行变更动作， 在此之前的更改操作的间隔不小于10分钟。