3. Recovery of direct CO2 emissions (from methanization)
The CO2 emissions concerned in the remainder of this article are those from off-gas purge gases (shown as (3) in figure 7). They are derived from biogas (composed of 35 to 50% CO2 by volume) generated by methanization and result, after purification, in an effluent composed of 90 to 99% CO2 of biogenic origin and 1 to 5% methane.
In order to be valorized, CO2 must pass through a supply chain from producer to user
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Recovery of direct CO2 emissions (from methanization)