APPARATUS FOR QUANTITATIVELY REDUCING NITROGEN DIOXIDE FROM MIXED GAS

摘要

A reducer for the quantitative reduction of NO2 to NO in gas mixtures. The reducer comprises two compartments of which one is filled with a granular preparation consisting of ferrosulphate and an acid alkalisulphate and the second comprises a granular preparation consisting of ferrosulphate and a strong acid. The preparation is preferably provided on the surface of granular inert carrier material, for example pumice.