Air Liquide (AL) continues to expand its capacities in biomethane, also known as Renewable Natural Gas (RNG) in the U.S., with the construction of two new production units.

These units, located in Center Township, Pennsylvania, and Holland Township, Michigan, will treat waste sourced from dairy farms. Following a circular economy approach, these units will contribute to the emergence of a low-carbon society.

These units will produce biogas from manure feedstock in an anaerobic digester for a total production capacity of 74 GWh, and return the digested waste for the farms’ needs, promoting

circular economy in waste management. Using AL’s proprietary gas separation membrane technology, the biogas will then be purified into RNG and injected into the natural gas grid.

AL currently has 26 biomethane operational production units in the world for a yearly production capacity of about 1.8 TWh.