41.鉄系石炭液化触媒の高性能化

抄録

Catalytic activiy of pulverized pyrite was investigated with a 5L batch-autoclave. The followings are obtained; (1) Pyrite is pulverised smaller than 1μm of average particle size by use of the wet-type or dry-type mill which are applicable to the Pilot Plant. (2) Pulverized pyrite is readily oxidized by atomspheric oxygen and loses the catalytic activity. So it needs treatment under an inert atomsphere and reactivation after oxidation. (3) Catalytic activity of pulverized pyrite increases contrary to the average particle size. In case of the average particle size is smaller than 1μm, pulverized pyrite is nearly comparable to the the synthetic iron sulfide which is the specified catalyst of the Pilot Plant.