COMBUSTION OF NH3-CONTAINING WASTE GAS

摘要

Simultaneous disposal of NH3- containing waste gas and combustible sulphur compounds-containing waste gas by:- a) combusting the former waste gas (1) in the presence of fuel gas (2) with a first, sub-stoichiometric amount of free oxygen (5), b) mixing the combustion gases from step a) with a second amount of free oxygen (9), the total of the first and second amount being super- stoichiometric and c) mixing the gases from step b) with the latter waste gas (11) and combusting the resulting mixture with a third, super-stoichiometric amount of free oxygen (12).