GAS PROCESSING METHOD AND GAS PROCESSING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a gas processing method and a gas processing apparatus with which nitrogen monoxide in processing target gas having a temperature considerably lower than 900°C can be subjected to reduction processing at a high denitrification rate.SOLUTION: A gas processing method for processing target gas containing nitrogen oxide includes irradiating ultraviolet ray to a mixed gas obtained by mixing ammonia with the processing target gas. The ratio of ammonia to nitrogen monoxide in the mixed gas is 1.5 or more in mole ratio.