METHOD FOR PRODUCING PARA-DIOXANONE USING FIXED BED REACTOR

摘要

The present invention relates to a preparation method of para-dioxanone from diethylene glycol using a fixed bed reactor. More particularly, the present invention relates to a preparation method of para-dioxanone by dehydrogenation of diethylene glycol in vapor state in presence of a catalyst inside a fixed bed reactor. The preparation method injects diethylene glycol and hydrogen at the bottom part of a fixed bed reactor in the direction opposite to the gravitational gravity and can maintain high activity of the catalyst for a long period of time. Also, the preparation method of the present invention can have enhanced conversion rate of para-dioxanone, thereby cost-efficiently and effectively preparing para-dioxanone.