Dry air requirement for burning 1 Nm3 of CO to CO2 may be around _______________ Nm3 ? August 26, 2021March 8, 2019 by admin Dry air requirement for burning 1 Nm3 of CO to CO2 may be around _______________ Nm3 ? A. 2.4 B. 1.75 C. 0.87 D. 11.4