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    Method of producing unsaturated acid from olefin
    1.
    发明授权
    Method of producing unsaturated acid from olefin 有权
    从烯烃生产不饱和酸的方法

    公开(公告)号：US08142742B2

    公开(公告)日：2012-03-27

    申请号：US12884950

    申请日：2010-09-17

    申请人： Boo Gon Woo ,  Jun Seok Ko ,  Kyoung Su Ha ,  Seong Pil Kang ,  Seok Hwan Choi ,  Young Bae Kim

    发明人： Boo Gon Woo ,  Jun Seok Ko ,  Kyoung Su Ha ,  Seong Pil Kang ,  Seok Hwan Choi ,  Young Bae Kim

    IPC分类号： B01J8/06 ,  C07C57/02

    CPC分类号： B01J8/067 ,  B01J2208/00212 ,  B01J2208/025 ,  C07C51/215 ,  C07C51/252 ,  C07C57/04

    摘要： Disclosed is a shell-and-tube heat exchanger type reactor that can be used for a process of producing unsaturated acids from olefins via fixed-bed catalytic partial oxidation, which comprises at least one reaction tube, each including at least one first-step catalyst layer, in which olefins are oxidized by a first-step catalyst to mainly produce unsaturated aldehydes, and at least two second-step catalyst layers, in which the unsaturated aldehydes are oxidized by a second-step catalyst to produce unsaturated acids, wherein a first catalyst layer of the second-step catalyst layers, disposed right adjacent to the first-step catalyst layer, has an activity corresponding to 5˜30% of the activity of the catalyst layer having a highest activity among the second-step catalyst layers. A method of producing unsaturated acids from olefins by using the reactor is also disclosed.

    摘要翻译： 公开了一种壳管式热交换器型反应器，其可用于通过固定床催化部分氧化由烯烃生产不饱和酸的方法，其包括至少一个反应管，每个反应管包含至少一个第一步催化剂 层，其中烯烃被第一步催化剂氧化以主要产生不饱和醛，以及至少两个第二步催化剂层，其中不饱和醛被第二步催化剂氧化以产生不饱和酸，其中第一 与第一级催化剂层相邻设置的第二级催化剂层的催化剂层的活性相当于第二级催化剂层中活性最高的催化剂层的活性的5〜30％的活性。 还公开了通过使用反应器由烯烃生产不饱和酸的方法。

    Method for recovering acrylic acid
    2.
    发明授权
    Method for recovering acrylic acid 有权
    回收丙烯酸的方法

    公开(公告)号：US07612231B2

    公开(公告)日：2009-11-03

    申请号：US11116367

    申请日：2005-04-28

    申请人： Seong Pil Kang ,  Seok Hwan Choi ,  Kyoung Su Ha ,  Jun Seok Ko ,  Boo Gon Woo ,  Young Bae Kim

    发明人： Seong Pil Kang ,  Seok Hwan Choi ,  Kyoung Su Ha ,  Jun Seok Ko ,  Boo Gon Woo ,  Young Bae Kim

    IPC分类号： C07C51/42

    CPC分类号： C07C51/44 ,  B01J2219/00006 ,  C07C51/487 ,  C07C57/04

    摘要： Disclosed is a simplified method for recovering acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, in a stable and efficient manner. The method comprises the steps of: introducing the mixture into an acrylic acid recovering device comprising an acrylic distillation unit integrated with an acrylic acid dimer pyrolysis tank; carrying out decomposition of acrylic acid dimmer under reduced pressure and recovering acrylic acid. The method optionally further comprises a step of recycling a portion of the solution obtained from the bottom of the acrylic acid recovering device to the acrylic acid recovering device.

    摘要翻译： 公开了一种以稳定且有效的方式从含有丙烯酸，丙烯酸二聚物和高沸点杂质的混合物中回收丙烯酸的简化方法。 该方法包括以下步骤：将混合物引入丙烯酸回收装置中，该装置包括与丙烯酸二聚物热解罐结合的丙烯酸蒸馏装置; 在减压下进行丙烯酸二聚体的分解并回收丙烯酸。 所述方法还包括将从丙烯酸回收装置的底部获得的溶液的一部分再循环到丙烯酸回收装置的步骤。

    Temperature measuring device
    3.
    发明授权
    Temperature measuring device 有权
    温度测量装置

    公开(公告)号：US07591585B2

    公开(公告)日：2009-09-22

    申请号：US11453117

    申请日：2006-06-14

    申请人： Kyoung Su Ha ,  Boo Gon Woo ,  Jun Seok Ko ,  Seong Pil Kang ,  Seok Hwan Choi ,  Sang Youn Lee ,  Young Bae Kim

    发明人： Kyoung Su Ha ,  Boo Gon Woo ,  Jun Seok Ko ,  Seong Pil Kang ,  Seok Hwan Choi ,  Sang Youn Lee ,  Young Bae Kim

    IPC分类号： G01K1/14 ,  G01K13/00 ,  G01K7/02

    CPC分类号： G01K3/14 ,  G01K1/14 ,  G01K7/02

    摘要： Disclosed is a temperature measuring device. The temperature measuring device includes: a thermo-well tube; and a cable or wire type temperature measuring means which is installed in a thermo-well tube, wherein temperature measuring means has temperature detecting sensors disposed at an intermediate portion thereof, and the temperature detecting sensors can be moved axially in the thermo-well tube by applying tension to both ends of the cable or wire type temperature measuring means. The present invention also provides a reaction tube in which the temperature measuring device is disposed axially, and a reactor including at least one temperature measuring device or reaction tube as described above.

    摘要翻译： 公开了一种温度测量装置。 所述温度测量装置包括：热井管; 以及安装在热井管中的电缆或线型温度测量装置，其中温度测量装置具有设置在其中间部分的温度检测传感器，并且温度检测传感器可以在热井管中轴向移动， 对电缆或电线式温度测量装置的两端施加张力。 本发明还提供一种反应管，其中温度测量装置轴向设置，反应器包括如上所述的至少一个温度测量装置或反应管。

    METHOD OF PRODUCING UNSATURATED ACID FROM OLEFIN
    4.
    发明申请
    METHOD OF PRODUCING UNSATURATED ACID FROM OLEFIN 有权
    从烯烃生产不饱和酸的方法

    公开(公告)号：US20110008218A1

    公开(公告)日：2011-01-13

    申请号：US12884950

    申请日：2010-09-17

    申请人： Boo Gon WOO ,  Jun Seok KO ,  Kyoung Su HA ,  Seong Pil KANG ,  Seok Hwan CHOI ,  Young Bae KIM

    发明人： Boo Gon WOO ,  Jun Seok KO ,  Kyoung Su HA ,  Seong Pil KANG ,  Seok Hwan CHOI ,  Young Bae KIM

    IPC分类号： B01J19/00

    CPC分类号： B01J8/067 ,  B01J2208/00212 ,  B01J2208/025 ,  C07C51/215 ,  C07C51/252 ,  C07C57/04

    摘要： Disclosed is a shell-and-tube heat exchanger type reactor that can be used for a process of producing unsaturated acids from olefins via fixed-bed catalytic partial oxidation, which comprises at least one reaction tube, each including at least one first-step catalyst layer, in which olefins are oxidized by a first-step catalyst to mainly produce unsaturated aldehydes, and at least two second-step catalyst layers, in which the unsaturated aldehydes are oxidized by a second-step catalyst to produce unsaturated acids, wherein a first catalyst layer of the second-step catalyst layers, disposed right adjacent to the first-step catalyst layer, has an activity corresponding to 5˜30% of the activity of the catalyst layer having a highest activity among the second-step catalyst layers. A method of producing unsaturated acids from olefins by using the reactor is also disclosed.

    摘要翻译： 公开了一种壳管式热交换器型反应器，其可用于通过固定床催化部分氧化由烯烃生产不饱和酸的方法，其包括至少一个反应管，每个反应管包含至少一个第一步催化剂 层，其中烯烃被第一步催化剂氧化以主要产生不饱和醛，以及至少两个第二步催化剂层，其中不饱和醛被第二步催化剂氧化以产生不饱和酸，其中第一 与第一级催化剂层相邻设置的第二级催化剂层的催化剂层的活性相当于第二级催化剂层中活性最高的催化剂层的活性的5〜30％的活性。 还公开了通过使用反应器由烯烃生产不饱和酸的方法。

    METHOD OF PRODUCING UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH HIGH EFFICIENCY
    5.
    发明申请
    METHOD OF PRODUCING UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH HIGH EFFICIENCY 审中-公开
    固定床催化部分氧化反应器高效生产不饱和酸的方法

    公开(公告)号：US20100015017A1

    公开(公告)日：2010-01-21

    申请号：US12564708

    申请日：2009-09-22

    申请人： Kyoung Su Ha ,  Boo Gon Woo ,  Jun Seok Ko ,  Seong Pil Kang ,  Seok Hwan Choi ,  Young Bae Kim

    发明人： Kyoung Su Ha ,  Boo Gon Woo ,  Jun Seok Ko ,  Seong Pil Kang ,  Seok Hwan Choi ,  Young Bae Kim

    IPC分类号： B01J8/04

    CPC分类号： C07C45/34 ,  B01J8/0453 ,  B01J8/0457 ,  B01J8/067 ,  B01J2208/00212 ,  B01J2208/0053 ,  B01J2208/025 ,  B01J2219/0004 ,  C07C45/35 ,  C07C45/36 ,  C07C45/37 ,  C07C51/215 ,  C07C51/252 ,  C07C47/21 ,  C07C47/22 ,  C07C57/04

    摘要： A shell-and-tube heat exchanger-type reactor including one or more catalytic tubes, each including a first-step reaction zone and a second-step reaction zone, wherein at least one of the first-step reaction zone and the second-step reaction zone is divided into two or more shell spaces by a partition; each of the divided shell spaces is independently heat-controlled; and a heat transfer medium having a temperature from the lowest active temperature of a catalyst layer in a reaction tube corresponding to the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone to the lowest active temperature of the catalyst layer plus 20° C.; and the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone is controlled so as to provide a reactant conversion contribution per length of 1.2˜2.5.

    摘要翻译： 一种管壳式热交换器型反应器，其包括一个或多个催化管，每个催化管包括第一步骤反应区和第二步反应区，其中至少一个第一步反应区和第二步 反应区通过隔板分成两个或多个壳体空间; 每个分开的壳空间是独立的热控制的; 以及传热介质，其具有对应于第一步骤反应区的第一壳体空间或第二阶段反应区域的第一壳体空间的反应管中催化剂层的最低活性温度的温度到最低活性 催化剂层的温度加上20℃。 并且控制第一步反应区的第一壳体空间或第二步反应区的第一壳体空间，以便提供每个长度为1.2〜2.5的反应物转化率贡献。

    Method for producing (meth) acrylic acid
    6.
    发明授权
    Method for producing (meth) acrylic acid 有权
    （甲基）丙烯酸的制造方法

    公开(公告)号：US07632968B2

    公开(公告)日：2009-12-15

    申请号：US11192223

    申请日：2005-07-28

    申请人： Seong Pil Kang ,  Seok Hwan Choi ,  Kyoung Su Ha ,  Jun Seok Ko ,  Young Bae Kim ,  Boo Gon Woo ,  Min Jeong Park

    发明人： Seong Pil Kang ,  Seok Hwan Choi ,  Kyoung Su Ha ,  Jun Seok Ko ,  Young Bae Kim ,  Boo Gon Woo ,  Min Jeong Park

    IPC分类号： C07C51/42

    CPC分类号： C07C51/44 ,  C07C51/48 ,  C07C57/04

    摘要： Disclosed is a method for producing (meth)acrylic acid comprising a process of recovering (meth)acrylic acid as aqueous (meth)acrylic acid solution from a (meth)acrylic acid-containing gas mixture produced by the catalytic gas phase oxidation of at least one reactant selected from the group consisting of propane, propylene, isobutylene and (meth)acrolein, wherein the recovering process comprises the steps of: (1) feeding the (meth)acrylic acid-containing gas mixture into a quenching tower and condensing it in the quenching tower so as to recover an aqueous (meth)acrylic acid solution from the bottom of the quenching tower, in which some of the recovered aqueous (meth)acrylic acid solution is recycled to the upper portion of the quenching tower so as to condense the (meth)acrylic acid-containing gas mixture; (2) passing the uncondensed part of the (meth)acrylic acid-containing gas mixture from the top of the quenching tower to a distillation tower; and (3) heating the bottom of the distillation tower to separate water-containing impurity components from the uncondensed (meth)acrylic acid-containing gas mixture and to discharge them from the top of the distillation tower. A system used for carrying out the method is also disclosed.

    摘要翻译： 公开了一种制备（甲基）丙烯酸的方法，包括从（甲基）丙烯酸水溶液中回收（甲基）丙烯酸作为（甲基）丙烯酸水溶液的方法，所述方法至少由 一种选自丙烷，丙烯，异丁烯和（甲基）丙烯醛的反应物，其中回收方法包括以下步骤：（1）将含（甲基）丙烯酸的气体混合物进料到淬火塔中并将其冷凝 淬火塔，以从骤冷塔的底部回收（甲基）丙烯酸水溶液，其中一些回收的（甲基）丙烯酸水溶液被循环到淬火塔的上部以冷凝 （甲基）丙烯酸气体混合物; （2）使来自（甲基）丙烯酸的气体混合物的未冷凝的部分从淬火塔的顶部通到蒸馏塔; 和（3）加热蒸馏塔的底部以将含水的杂质组分与未冷凝（甲基）丙烯酸的气体混合物分离并从蒸馏塔的顶部排出。 还公开了用于执行该方法的系统。

    Method of producing unsaturated aldehyde and unsaturated acid in fixed-bed catalytic partial oxidation reactor with enhanced heat control system
    10.
    发明授权
    Method of producing unsaturated aldehyde and unsaturated acid in fixed-bed catalytic partial oxidation reactor with enhanced heat control system 有权
    固定床催化部分氧化反应器中增强热控系统的不饱和醛和不饱和酸的生产方法

    公开(公告)号：US07238836B2

    公开(公告)日：2007-07-03

    申请号：US10931034

    申请日：2004-09-01

    申请人： Kyoung Su Ha ,  Geon Yong Kim ,  Seong Pil Kang ,  Seok Hwan Choi ,  Boo Gon Woo

    发明人： Kyoung Su Ha ,  Geon Yong Kim ,  Seong Pil Kang ,  Seok Hwan Choi ,  Boo Gon Woo

    IPC分类号： C07C51/16 ,  C07C45/35 ,  B01J8/04

    CPC分类号： C07C51/252 ,  C07C57/04

    摘要： The present invention provides a process of producing unsaturated aldehydes and unsaturated acids from olefins by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor. In this process, the reactor comprises a first-step reaction zone of mainly producing the unsaturated aldehydes, a second-step reaction zone of mainly producing the unsaturated acids, or both the two zones. The first-step reaction zone is divided into two or more zones by a partition. Each of the divided shell spaces is filled with a heat transfer medium, and the heat transfer medium in each shell space is maintained at isothermal temperature or a temperature difference of 0-5° C. The temperatures of the heat transfer media in each of the divided shell spaces are set to increase in the moving direction of reactants. In order to facilitate the removal of heat generation at a location where the partition is placed, a reaction inhibition layer is disposed in the first-step reaction zone. Also, in order to protect the catalyst layer from a highly exothermic reaction, the process is performed at a limited temperature difference between the temperature in a hot spot and the temperature of a molten salt. If the improved heat control system according to the present invention is used, the heat stability of the catalyst layer will be secured and the yields of intermediate and final products can be increased.

    摘要翻译： 本发明提供了一种在壳管式热交换器型反应器中通过固定床催化部分氧化从烯烃生产不饱和醛和不饱和酸的方法。 在该方法中，反应器包括主要产生不饱和醛的第一步反应区，主要产生不饱和酸的第二步反应区或两个区。 第一步反应区通过隔板分成两个或多个区域。 每个分隔的壳体空间填充有传热介质，并且每个壳体空间中的传热介质保持在等温温度或0-5℃的温差。传热介质的温度 分开的壳体空间被设置为在反应物的移动方向上增加。 为了便于在放置隔板的位置除去发热，反应抑制层设置在第一步反应区中。 此外，为了保护催化剂层免受高度放热的反应，该过程在热点温度与熔融盐的温度之间的有限温度差下进行。 如果使用根据本发明的改进的热控制系统，则将确保催化剂层的热稳定性，并且可以提高中间产品和最终产品的产率。