Removal of Nitrous Oxide in Nitric Acid Production

Resumo

The production of nitric acid is one of the main industrial sources of nitrous oxide entering the atmosphere, which is an ozone-depleting gas with a potential 310 times higher than that of CO₂. The review considers the catalytic systems and high- and low-temperature one-pot methods to reduce nitrous oxide emissions in the production of nitric acid. The existing catalysts provide 80–90% decomposition of nitrous oxide. For further increase in the degree of decomposition, it is required to develop more active and stable catalysts.