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Table 3 Requested product gas purity

From: Methanation of CO2 - storage of renewable energy in a gas distribution system

Component Fraction
Methane (CH4) >96 vol.%
Hydrogen (H2) <2 vol.%
Carbon dioxide (CO2) <3 vol.%
Carbon monoxide (CO) <30 ppm
Water (H2O) Dew point < −8°C (70 bar)