Suppose we have a mixture of NOx/O2/N2 with NOx occupy around 0.5% Vol. How can we extract NOx from this mixture? And how much energy is needed (e.g. kJ/mol NOx) ? It would be great if someone can suggest its economic aspect.
Pass the mixture through a U-tube dipped in I've cubes NOx liquify into a pale yellow liquid dinitrogen tetraoxide the other two gases remain as gases since the have lower boiling points