| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reaction tube in which influences of explosion can be kept to a minimum even when the explosion occurs and which allows cost reduction and high productivity to be attained and to provide a multitubular reactor including the reaction tube, and a method for producing unsaturated compounds by using the multitubular reactor. <P>SOLUTION: The reaction tube, in which a catalyst is packed and which is used for producing unsaturated compounds by an oxidative dehydrogenation reaction of a gaseous raw material, has a plurality of flame extinction devices inserted/fitted into both end portions thereof, at the least. The multitubular reactor includes a plurality of the reaction tubes. The method for producing the unsaturated compound comprises the steps of: supplying a gaseous mixture of the gaseous raw material and a molecular oxygen-containing gas to the multitubular reactor; and performing the oxidative dehydrogenation reaction of the gaseous raw material. <P>COPYRIGHT: (C)2013,JPO&INPIT |
