The category is Biogas: Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen (anaerobically), primarily consisting of methane and carbon dioxide. It can also be used in a gas engine to convert the energy in the gas into electricity and heat.
Parent categories: Metallurgy, Plastics, Rubber, Chemicals & Energies
Related categories: All categories that are energy related, visitor discretion required