Method for catalytic gas phase oxidation

专利名称：Method for catalytic gas phase oxidation发明人：Nishimura, Takeshi,Mori, Masakatsu,Kitaura,

Masatsugu,Dodo, Osamo,Nakamura, Daisuke

申请号：EP00307312.9申请日：20000824公开号：EP1080781A1公开日：20010307

专利附图：

摘要：In the reaction of catalytic gas phase oxidation by means of a shell-and-tubetype reactor adapted to circulate a heating medium (10a) to the shell (1) of the reactorthrough the medium of a circulation device (30) connecting an annular conduit connected

thereto, a method for the catalytic gas phase oxidation characterized by subjecting a partof the heating medium extracted from the shell (1) of the reactor to heat exchange,introducing the heating medium (10a) resulting from the heat exchange into theproximity of a heating medium circulation inlet (31) on the inlet side of the circulationdevice or the annular conduit on the outlet side of the reactor. The flow rate of theheating medium after the heat exchange is preferred to be in the range of 2 - 40 vol.%based on the flow rate of the heating medium within the shell of the reactor and thetemperature difference of the heating medium at the inlet and the outlet to be in therange of 15 - 150°C. According to this invention, it is made possible to reduce evenly thehot spots in the reaction tubes, improve the yield of the product aimed at, andimplement a reaction of catalytic gas phase oxidation of propylene or isobutylene.

申请人：Nippon Shokubai Co., Ltd.

地址：1-1, Koraibashi 4-chome, Chuo-ku Osaka-shi, Osaka 541-0043 JP

国籍：JP

代理机构：Jump, Timothy John Simon

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