In the production of nitric acid, the oxygen proportion of the air is increased by mixing atmospheric (humid) air with oxygen so that the molar ratio between both is 4:1.

This stream is at 760 mmHg, and before mixing it with ammonia, the dew point is 11.24C and the relative humidity is 0.42.
Ammonia is fed to the converter at the same temperature as that of the rich air. The oxygen fed to the converter is in 20% excess with respect to the stoichiometry of the reaction:

Determine:

a. Composition and temperature of the product gases.

b. Maximum concentration of the acid produced if there is not stream separation and the required oxygen for the oxidation from NO to NO2 is provided.

Transcribed Image Text:

NH3+0=>NO+ =>NO+HO