/SUB(57) The invention relates to a method for the catalytic decomposition of NSUB2/SUBO into NSUB2/SUB and OSUB2/SUB. The inventive method is carried out at a high temperature, generally between 700 and 1000�C, at a high WHSV and in the presence of a catalyst comprising a mixed oxide of zirconium and cerium in the form of a solid solution. The invention also relates to a method for the decomposition, into NSUB2/SUB and OSUB2/SUB, of NSUB2/SUBO present in the effluent from a nitric acid production unit.

摘要

The invention relates to a method for the catalytic decomposition of NO into Nand O. The inventive method is carried out at a high temperature, generally between 700 and 1000°C, at a high WHSV and in the presence of a catalyst comprising a mixed oxide of zirconium and cerium in the form of a solid solution. The invention also relates to a method for the decomposition, into Nand O, of NO present in the effluent from a nitric acid production unit.