Treatment of gases

Claim 1

A PROCESS WHICH COMPRISES ADDING WATER VAPOR TO A GASEOUS MIXTURE COMPRISING HYDROGEN, NITROGEN, CARBON DIOXIDE AND CARBON MONOXIDE, THE WATER VAPOR BEING ADDED TO THE MIXTURE IN AN AMOUNT WITHIN THE RANGE OF 60 TO 300 PERCENT BY VOLUME OF SAID GASEOUS MIXTURE, ADDING SUFFICIENT OXYGEN BEARING GAS TO THE RESULTING GASEOUS MIXTURE TO PROVIDE AN OXYGEN TO CARBON MONOXIDE VOLUME RATIO IN THE RANGE OF ABOUT 3:1 TO 0.25:1, PASSING THE RESULTING GASEOUS MIXTURE OVER A FIRST STAGE SUPPORT PLATINUM CATALYST AT AN ELEVATED TEMPERATURE, REMOVING THE CARBON DIOXIDE FROM THE EFFLUENT GASES, PASSING THE EFFLUENT GASES OVER A SECOND STAGE SUPPORTED PLATINUM CATALYST AT AN ELEVATED TEMPERATURE, WHEREBY THE CARBON MONOXIDE IN THE GAS IS SUBSTANTIALLY COMPLETELY CONVERTED TO CARBON DIOXIDE.