Patent ID: 6907737

Claim:
A method of fueling a gas turbine with methane gas from natural gas reserves having from about 40 to about 80 volume percent methane, the method comprising: providing a first natural gas stream from the natural gas reserve; separating inert gases from methane gas in the first natural gas stream to provide a separated methane gas and a separated inert gas; blending the separated inert gas with a second natural gas stream having from about 40 to about 80 volume percent methane to form an inert gas/methane gas blend, wherein after blending the amount of inert gas in the second natural gas stream will decrease the relative percentage of methane gas in the inert gas/methane gas blend to below about 40 volume percent methane, based upon the volumes of inert and methane gases; and fueling a gas turbine with the inert gas/methane gas blend.