It’s a well-known fact in the energy and petchem industries that ethane is either “rejected” into natural gas or used as a feedstock for steam crackers. But piping ethane to NGL hubs, crackers, or export docks only makes sense if it’s economically viable or if there’s no other alternative, and ethane rejection has its limits — ethane has a 70% higher Btu value than methane, and too much rejection can make pipeline gas “too hot” for downstream consumers. Well, there’s another way to make economic use of ethane: burn it — typically in a blend with natural gas — to generate electric power. Burning ethane for power is super-rare though, and only happens in places where the lightest of all NGLs is so abundant that folks don’t know what to do with it. The Marcellus/Utica region in Appalachia for one, and now — just maybe — the Bakken Shale in western North Dakota. Today, we discuss plans for what would be only the second major U.S. power plant to be fueled by a blend of natural gas and ethane.
Too Hot – Could an Ethane-Fired Power Plant in the Bakken Help Address an Imbalance?
