JPH0371361B

PURPOSE:To efficiently recombine gaseous hydrogen and gaseous oxygen by packing a specified spongy metallic catalyst in the titled oxygen-hydrogen recombiner and introducing the waste gas from an atomic reactor contg. gaseous hydrogen, gaseous oxygen, superheated steam, air, etc., into the recombiner. CONSTITUTION:Alumina is deposited on the surface of a spongy metallic carrier as the binder, 0.1-5g/l metallic particles of a platinum group noble metal such as platinum and Pd having catalytic activity is deposited thereon, and the aperture of each hole is regulated to 0.5-6mm. The obtained oxygen- hydrogen recombination catalyst 7 is packed in the oxygen-hydrogen recombiner 6 for waste gas. Then the waste gas generated by the radiolysis of cooling water in the atomic reactor 1 and contg. gaseous hydrogen, gaseous oxygen, superheated steam and a trace amt. of air is introduced into the recombiner 6 at 1-4Nm/s flow rate, 500-150,000 spacer velocity and