Recombination of hydrogen and oxygen in the technical gaseous waste of nuclear power plants (I)

The recombination of hydrogen and oxygen in technical gaseous waste of nuclear power plants has been studied. A highly efficient catalyst for reacting H-2 with O-2 to form water was prepared. Various operating conditions and factors affecting the recombination of H-2 and O-2 were tested and the best conditions were determined. Results show that the Pd-Al2O3 catalyst prepared had very good characteristics. The recombination rate of H-2 and O-2 was higher than 98.3% and 99.9%, respectively. After recombination, residual concentrations of H-2 and O-2 in waste gas were O-2<3 ppm, H-2<400 ppm. The Pd-Al2O3 catalyst and operating conditions determined for gaseous waste processing of nuclear power plants were satisfactory.