anx_VI__cpt_1__cpt_1__table_7

The greenhouse gas emissions savings for biomethane only refer to compressed biomethane relative to the fossil fuel comparator for transport of 94 g CO_(2)eq/MJ. This category includes the following categories of technologies for biogas upgrade to biomethane: Pressure Swing Adsorption (PSA), Pressure Water Scrubbing (PWS), Membranes, Cryogenic, and Organic Physical Scrubbing (OPS). It includes an emission of 0,03 MJ CH_(4)/MJ biomethane for the emission of methane in the off-gases. This category includes the following categories of technologies for biogas upgrade to biomethane: Pressure Water Scrubbing (PWS) when water is recycled, Pressure Swing Adsorption (PSA), Chemical Scrubbing, Organic Physical Scrubbing (OPS), Membranes and Cryogenic upgrading. No methane emissions are considered for this category (the methane in the off-gas is combusted, if any). BIOMETHANE – MIXTURES OF MANURE AND MAIZE Biomethane production system Technological options Greenhouse gas emissions savings – typical value Greenhouse gas emissions savings – default value Manure – Maize 80 % - 20 % Open digestate, no off-gas combustion 62 % 35 % Open digestate, off-gas combustion 78 % 57 % Close digestate, no off-gas combustion 97 % 86 % Close digestate, off-gas combustion 113 % 108 % Manure – Maize 70 % - 30 % Open digestate, no off-gas combustion 53 % 29 % Open digestate, off-gas combustion 69 % 51 % Close digestate, no off-gas combustion 83 % 71 % Close digestate, off-gas combustion 99 % 94 % Manure – Maize 60 % - 40 % Open digestate, no off-gas combustion 48 % 25 % Open digestate, off-gas combustion 64 % 48 % Close digestate, no off-gas combustion 74 % 62 % Close digestate, off-gas combustion 90 % 84 %

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Source: EUR-Lex (Cellar) · retrieved 2026-10-28 · Text as adopted (Official Journal); later amendments are not incorporated in this text.