Greenhouse gas emissions calculations of biofuel from municipal sewage sludge: A comparison of assessment tools

none4noThe use of biofuels made from biomass provides a renewable alternative to fossil fuels in the European Union's transport sector. The RED II defines the GHG emissions criteria that bioliquids used in transport must comply with. For biofuel producers this implies that they need to calculate their CO2 equivalent emissions. This work aims to compare two calculation tools for lifecycle greenhouse gas (GHG) assessment of biofuels produced from municipal sewage sludge by an innovative integrative system plant (TCR®-PSA-HDO integrated system) as required by the Renewable Energy Directive. The compared tools are “BioGrace GHG calculation tool” recognised as a voluntary scheme by the European Commission and a conventional LCA tool such as “GaBi Software”. The greenhouse gas emission savings of biofuel produced by the TCR®-PSA-HDO integrated system is evaluated and compared with conventional fuel (diesel and gasoline). Results obtained through the two methodologies were entirely consistent among each other.noneBaioli F.; Marazza D.; Valmori G.; Righi S.Baioli F.; Marazza D.; Valmori G.; Righi S