S4 Energy Solutions LLC, a joint venture by Waste Management, Inc. (NYSE: WM) and InEnTec LLC, announced plans to develop a plasma gasification facility at Waste Management’s Columbia Ridge Landfill in Arlington, Oregon. The planned facility will convert municipal solid waste into fuels and energy.
Construction is expected to begin in the early summer, with startup scheduled by year end.
With the S4 system, waste materials are prepared and fed into a first phase gasification chamber that operates at temperatures of approximately 1,500 degrees Fahrenheit. After the first phase, the waste materials flow into a second closed chamber where they are superheated to temperatures between 10,000 and 20,000 degrees Fahrenheit using an electricity-conducting gas called plasma. The intense heat of the second stage plasma gasifier rearranges the molecular structure of the waste, transforming organic (carbon-based) materials into a synthesis gas (syngas).