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    • 2. 发明申请
    • METHOD OF PRODUCING UNSATURATED ALDEHYDE AND UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH ENHANCED HEAT CONTROL SYSTEM
    • 在固体床催化部分氧化反应器中生产不饱和醛和不饱和酸的方法,具有增强的热控制
    • WO2005021149A1
    • 2005-03-10
    • PCT/KR2004/002193
    • 2004-09-01
    • LG CHEM, LTD.HA, Kyoung-SuKIM, Geon-YongKANG, Seong-PilCHOI, Seok-HwanWOO, Boo-Gon
    • HA, Kyoung-SuKIM, Geon-YongKANG, Seong-PilCHOI, Seok-HwanWOO, Boo-Gon
    • B01J8/06
    • C07C51/252C07C57/04
    • 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.
    • 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。 每个分开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。 在每个分开的壳体空间中的传热介质的温度被设定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反应,该过程在热点温度与熔融盐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。