Süreç prensibi：
H2S(g)+1.5O2(g)→SO2(g)+H2O(g)+518KJ/mole
SO2(g)+0,5O2(g)→SO3(g)+99KJ/mol
SO3(g)+H2O(g)→H2SO4(g)+101KJ/mol
H2SO4(g)→H2SO4(aq) +69KJ/mol
NOx(g)+NH3(g)→N2(g)+H2O(g)
SO2(g)+H2O2(aq)→H2SO4(aq) +306KJ/mol