A continuous catalyzer reducing furance

A Continuous Catalyzer Reducing Furnace is described, in which the Furnace consists of a rotating steel tube, the catalyst being forwarded along inside of this tube by means of a helical conveyor ribbon welded to the inside of the tube. Means are provided for feeding in the unreduced catalyzer at a predetermined rate and also for discharging the finished catalyst into oil without coming into contact with air. The flow of the reducing gas is counter-current to that of the catalyst.