会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • Method of producing unsaturated acid from olefin
    • 从烯烃生产不饱和酸的方法
    • US20060211884A1
    • 2006-09-21
    • US11378438
    • 2006-03-17
    • Boo WooJun KoKyoung HaSeong KangSeok ChoiYoung Kim
    • Boo WooJun KoKyoung HaSeong KangSeok ChoiYoung Kim
    • C07C51/16C07C51/235
    • B01J8/067B01J2208/00212B01J2208/025C07C51/215C07C51/252C07C57/04
    • 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.
    • 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具有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。
    • 4. 发明申请
    • Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with high efficiency
    • 固定床催化部分氧化反应器高效生产不饱和酸的方法
    • US20070073084A1
    • 2007-03-29
    • US11483752
    • 2006-07-10
    • Kyoung HaBoo WooJun KoSeong KangSeok ChoiYoung Kim
    • Kyoung HaBoo WooJun KoSeong KangSeok ChoiYoung Kim
    • B01J8/04C07C51/16C07C51/235
    • C07C45/34B01J8/0453B01J8/0457B01J8/067B01J2208/00212B01J2208/0053B01J2208/025B01J2219/0004C07C45/35C07C45/36C07C45/37C07C51/215C07C51/252C07C47/21C07C47/22C07C57/04
    • Disclosed is a process for producing unsaturated aldehydes and/or unsaturated acids from olefins or alkanes in a fixed bed shell-and-tube heat exchanger-type reactor by catalytic vapor phase oxidation. A heat exchanger-type reactor for use in such a process is also disclosed. In the process, at least one of the first-step reaction zone and the second-step reaction zone is divided into two or more shell spaces by at least one partition; each of the divided shell spaces is independently heat-controlled; a heat transfer medium in the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone has a temperature ranging from the lowest active temperature of a catalyst layer packed 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+20° C.], when referring to the two or more shell spaces corresponding to the first-step reaction zone sequentially as the first shell space of the first-step reaction zone, the second shell space of the first-step reaction zone, . . . , the nth shell space of the first-step reaction zone, and the two or more shell spaces corresponding to the second-step reaction zone sequentially as the first shell space of the second-step reaction zone, the second shell space of the second-step reaction zone, . . . , the nth shell space of the second-step reaction zone; and the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone is controlled in such a manner that the first shell space provides a reactant conversion contribution per length as defined in Equation 1 or 2 of 1.2˜2.5.
    • 公开了一种通过催化气相氧化在固定床管壳式热交换器型反应器中由烯烃或烷烃生产不饱和醛和/或不饱和酸的方法。 还公开了一种用于这种方法的热交换器型反应器。 在该过程中,至少一个第一步骤反应区和第二步反应区被至少一个隔板分成两个或多个壳层空间; 每个分开的壳空间是独立的热控制的; 在第一步骤反应区的第一壳体空间或第二阶段反应区的第一壳体空间中的传热介质的温度范围从填充在对应于第一步骤的反应管的反应管中的催化剂层的最低活性温度 当提及对应于第一步反应的两个或多个壳层空间时,第一步反应区的壳体空间或第二步反应区的第一壳空间为[最低活性温度+ 20℃] 作为第一步反应区的第一壳空间,第一步反应区的第二壳空间。 。 。 ,第一步反应区的第n个第<! - SIPO - >壳空间,以及对应于第二步反应区的两个或多个壳层空间依次作为第二步反应区的第一壳空间, 第二步反应区的第二个壳体空间。 。 。 ,第二步反应区的第n个壳空间; 并且以这样的方式控制第一步骤反应区或第二阶段反应区的第一壳层空间的第一壳层空间,使得第一壳空间提供如式1或2中定义的每个长度的反应物转化贡献 1.2〜2.5。
    • 6. 发明申请
    • Method for producing (meth) acrylic acid
    • US20050192464A1
    • 2005-09-01
    • US11061019
    • 2005-02-18
    • Seong KangSeok ChoiKyoung HaGeon KimBoo WooSang LeeYoung KimKoo Kang
    • Seong KangSeok ChoiKyoung HaGeon KimBoo WooSang LeeYoung KimKoo Kang
    • C07C51/43C07C51/42C07C51/48
    • C07C51/48C07C57/04
    • The present invention relates to a method for producing (meth)acrylic acid comprising a process of recovering (meth)acrylic acid as an aqueous (meth)acrylic acid 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, and a system usable for the method. The recovery 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 solution of (meth)acrylic acid is recycled to the top part 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 quenching tower through the top of the quenching tower to an absorption column; (3) absorbing (meth)acrylic acid contained in the uncondensed part of the (meth)acrylic acid-containing gas mixture in the absorption column with a absorption solvent; (4) feeding the (meth)acrylic acid solution resulting from the absorption in the step (3) to a desorption column; and (5) separating the solvent used in the step (3) from the (meth)acrylic acid solution in the desorption column, so that the substance from which the solvent has been removed in the desorption column is fed to the quenching tower, and the separated solvent is recycled to the absorption column. The inventive method is an efficient and economic method which allows a reduction in energy consumption in subsequent purification processes by maximizing the concentration of an aqueous solution of (meth)acrylic solution recovered at the bottom of the quenching tower and minimizing the concentration of (meth)acrylic acid lost from the vent gas of the absorption column.
    • 10. 发明申请
    • Crash recovery system and method for distributed file server using object based storage
    • 使用基于对象的存储的分布式文件服务器的崩溃恢复系统和方法
    • US20060129614A1
    • 2006-06-15
    • US11231158
    • 2005-09-20
    • Hong KimKi JinYoung KimYoung KimMi LeeMyung Kim
    • Hong KimKi JinYoung KimYoung KimMi LeeMyung Kim
    • G06F17/30
    • G06F11/1435G06F11/1448G06F11/1451G06F11/1464G06F11/1469
    • A crash recovery system and method for distributed file server using object based storage are provided. The system includes: a client for accessing a file system using an object-based storage device (OSDFS), transmitting a command to an object-based storage device (OSD) and accessing a metadata server (MDS); a network for providing an interface and transferring data between the client, the metadata server and the object-based storage device; an object-based storage device for analyzing the command from the client and performing corresponding operations of the command; and a metadata server for storing and managing metadata controlling a direct access to a predetermined file from the client to the object based storage device in order to provide the metadata to the client, and checking and recovering a consistency of the stored and managed metadata when the OSDFS is malfunctioned.
    • 提供了一种使用基于对象的存储的分布式文件服务器的崩溃恢复系统和方法。 该系统包括:用于使用基于对象的存储设备(OSDFS)访问文件系统的客户机,向基于对象的存储设备(OSD)发送命令并访问元数据服务器(MDS); 用于提供接口并在客户端,元数据服务器和基于对象的存储设备之间传送数据的网络; 基于对象的存储装置,用于分析来自客户机的命令并执行命令的相应操作; 以及用于存储和管理元数据的元数据服务器,其控制从客户机到基于对象的存储设备直接访问预定文件,以便向客户端提供元数据,以及当存储和管理的元数据的一致性时 OSDFS发生故障。