Renewable natural gas

Common card · No. 472120

Renewable natural gas (RNG), also known as biomethane, is a renewable fuel made from biogas that has been upgraded to a quality similar to fossil natural gas and has a methane concentration of 90% or greater. By removing carbon dioxide and other impurities from biogas, the concentration of methane is high enough that it becomes possible to distribute RNG via existing gas pipeline infrastructure. RNG can be used in existing appliances, including vehicles with natural gas burning engines (natural gas vehicles). The most common way of collecting biogas with which to produce biomethane is through the process of anaerobic digestion. Anaerobic digestion facilities are either purpose built such as facilities that digest manure, household organic waste, or wastewater treatment plants. Biogas is also byproduct of the decomposition of organic materials in landfills. RNG can also be produced through the methanation of carbon dioxide/monoxide and hydrogen using either biomethanation, the Sabatier process...

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