Nitric oxide recovery system

Claim 1

IN A METHOD OF COLLECTING NITRIC OXIDE FROM GASES CONTAINING THE SAME IN SMALL AMOUNTS, THE STEPS WHICH COMPRISES COOLING THE NITRIC OXIDE CONTAINING GAS BY REFRIGERATION TO A TEMPERATURE BELOW 32* F. TO REMOVE THE WATER, THEREFROM, THEN OXIDIZING THE NITRIC OXIDE CONTENT OF THE GAS CATALYTICALLY IN THE ABSENCE OF MOISTURE AND CONVERTING THE NITRIC OXIDE TO NITROGEN PEROXIDE BY PASSING THROUGH A BED OF SILICA GEL, REMOVING THE GAS CONTAINING THE NITROGEN PEROXIDE FROM THE SILICA GEL, DEPOSITING SOLID NITROGEN PEROXIDE FROM THE GAS BY REFRIGERATING THE GAS, RECOVERING THE NITROGEN PEROXIDE, AND PASSING THE REMAINING GAS THROUGH SILICA GEL TO ADSORB THE REMAINING NITROGEN PEROXIDE THEREFROM.