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You may be aware methane biogas has other problems. It is typically very moist and contains corrosive contaminants.

Moisture content can be problematic because the presence of water vapor in biogas can lead to corrosion in pipelines and combustion engines, potentially shortening their lifespan. Moisture in biogas can reduce its calorific value, making it a less efficient than the genuine item.

Another issue is the presence of volatile sulfur compounds in biogas. These compounds, contribute to corrosion and also pose environmental and health risks when released into the atmosphere.

These problems aren't deal breakers by themselves, but the bottom line, is that when analyzing biogas we've got to take into account the extra capital expense associated with these drawbacks.



I understood the parent comment as generating renewable methane like methanol, using renewable electricity -> hydrogen (and CO2) -> methane.

This doesn't requires bacteries and feedstock in a wet disgester, so it removes the issue with moist and sulfur.




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