Title:
Technical, Economic, and Environmental Assessment of Hydrogen Production via Biomass Residue Gasification in Minas Gerais, Brazil
Author(s):
Rezende, T.T.G., Venturini, O.J., Reno, M.L.G., Palacio, J.C.E., Lora, E.E.S., Oliveira, D.C., Santos, D.J.
Document(s):
Paper
Poster
Abstract:
Brazil is a leading producer of agricultural and forestry products, generating substantial biomass residues, particularly in the southeastern state of Minas Gerais. In this context, this study assesses the technical and economic potential of hydrogen production through biomass residue gasification in Minas Gerais, highlighting the contributions of each microregion within the state. A computational model was used to simulate the gasification process, considering three different gasification agents. A Life Cycle Assessment (LCA) was conducted to quantify the environmental impacts of hydrogen production via the studied gasification routes. The study demonstrates that reusing the tail gas of the pressure swing adsorption is crucial for mitigating methane emissions. Air/steam gasification demonstrated the lowest levels of CO2-eq emissions, followed by air and oxygen gasification. Using the microregion of Uberaba as a case study, which was identified as the one with the highest technical potential and best economic performance, the CO2-eq emissions were determined, resulting in 2.44 kgCO2eq/kgH2 for air gasification, 2.27 kgCO2eq/kgH2 for oxygen gasification, and 1.53 kgCO2eq/kgH2 for air/steam gasification, which originate primarily from indirect sources inherent to the gasification process, followed by unavoidable methane emissions, and emissions associated with the transport, baling, and collection of the biomass residues..
Keywords:
agricultural residues, forest residues, gasification, hydrogen, life cycle assessment (LCA)
Topic:
Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels
Subtopic:
Biofuels and synthetic fuels from biomass and hydrogen
Event:
33rd European Biomass Conference and Exhibition
Session:
5BV.4.21
Pages:
979 - 985
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-5BV.4.21
Price:
FREE
