ANNULAR-TYPE DISTRIBUTOR WITH IMPROVED FLOW UNIFORMITY

摘要

Disclosed are an annular-type distributor having a multiple slit layer including at least two annular layers, which are stacked while being spaced by a predetermined distance and in which at least one slit is formed so as to receive or discharge fluid; a reactor or a heat exchanger having the annular-type distributor; and a method of producing unsaturated aldehyde or unsaturated acid from olefin by catalytic gas phase oxidation reaction using the reactor.