International standardization of method to esti-mate carbon footprint of e-methane in ISO/TC67/SC9 (Production, transport and storage facilities for cryogenic liquefied gases)

Abstract

In order to achieve carbon neutrality in Japan, the validity of the CO₂ reduction effect of synthetic fuels (e.g. e-methane, e-fuel, etc.) needs to be internationally recognized as an important means of energy-related carbon neutralization.
International standards for the calculation of greenhouse gas emissions throughout the LNG value chain will lead to international recognition of the CO₂ reduction potential of e-methane (i.e. captured CO₂ for feedstock of recycled carbon fuels can be offset of CO₂ emissions from final combustion), which is expected to contribute to the carbon neutralization of city gas.