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Anaerobic digestion and catalytic methanation with hydrogen (biomethane)


Technology Description

Similar to biomethane production from anaerobic digestion, with the addition of a methanation step to further convert the carbon content in the biogas CO2 to methane rather than venting or capturing the CO2. The CO2 is reacted with hydrogen in the presence of a catalyst. The benefit is a more effective use of biogenic carbon present in biogas, which can displace fossil-derived methane.

Relevance for Net Zero

Though it’s a more effective use of biogenic carbon, alternative methods of biomethane production exist at higher TRL, and the demand for biomethane in the future is limited.

Key Countries

Germany, United States, China, Switzerland, Netherlands, France, Austria, Japan

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