首页|COMPREHENSIVE LIFE CYCLE ANALYSIS OF DIVERSE HYDROGEN PRODUCTION ROUTES AND APPLICATION ON A HYDROGEN ENGINE
COMPREHENSIVE LIFE CYCLE ANALYSIS OF DIVERSE HYDROGEN PRODUCTION ROUTES AND APPLICATION ON A HYDROGEN ENGINE
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In the effort of achieving net-zero Greenhouse Gas (GHG) emissions， hydrogen is becoming increasingly relevant in several sectors such as automotive， cogeneration， maritime， off-road， and railroad。 However， hydrogen can be produced from different routes that involve different production processes and feedstocks。 In contrast to the key role of hydrogen in the transport sector s decarbonization， publications that claim to address the environmental impacts of hydrogen are often focused on Global Warming Potential (GWP) and GHG emissions only。 This manuscript focuses on the environmental impacts of hydrogen production considering different production routes (i。e。， Steam Methane Reforming (SMR)， SMR coupled with Carbon Capture and Storage (CCS)， Coal Gasification (CG)， CG coupled with CCS， electrolysis from fossil fuels and from wind) and a broad set of environmental impact categories， not only GWP。 The Life Cycle Assessment (LCA) methodology is applied in the present study with a twofold aim。 The first aim is to develop the LCA models of diverse hydrogen production routes and address present and potential well-to-tank environmental impacts。 The second aim is to apply the previous findings to develop a cradle-to-grave LCA of a hydrogen engine， serving as a case study for the automotive sector。 The LCA models are developed using SimaPro v。9。4。0。3 as LCA software and Ecoinvent v3。8 as background database。 The functional units are I kg of hydrogen for the cradle-to-gate boundary and 1 mile of vehicle lifetime for the cradle-to-grave boundary。 The life cycle impact assessment method is the TRACI 2。1 method developed by the US Environmental Protection Agency。
alternative fuelshydrogen engineinternal combustion enginesLCAlife cycle analysis
Antonella Accardo、Gaia Gentilucci、Ezio Spessa
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Department of Energy 'G. Ferraris', Interdepartmental Center for Automotive Research and sustainable Mobility (CARS), Polytechnic of Turin, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy
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