FIELD: technological processes.
SUBSTANCE: present invention relates to a method of cleaning tail gas containing nitrogen oxides and alkyl nitrite. Said method involves introduction of tail gas in the presence of oxygen in contact with an effective amount of alkyl alcohol for absorption of alkyl nitrite, introducing the resultant absorbed gas in the presence of the catalyst into contact with the reducing gas to reduce the level of nitrogen oxides, as well as washing of absorbed and reduced gas, thus obtaining cleaned tail gas. There is also proposed a plant for cleaning tail gas containing nitrogen oxides and alkyl nitrite. Cleaned tail gas has low content of nitrogen oxide and low content of alkyl nitrite.
EFFECT: invention increases efficiency of cleaning tail gas.
19 cl, 1 dwg, 1 tbl
