Room: Poster Area
Date: Tuesday, 19 May 2026
Time: 16:15 - 17:15 CEST
Session code 2AV.3
Circular bioeconomy and environmental performance: innovations and assessments
Sustainable Biohydrogen Storage via Biogas-to-Ammonia Conversion: Process Simulation and Environmental Assessment
Short Introductive summary
The growing demand for sustainable energy storage systems has positioned hydrogen and its derivatives as key elements in global decarbonization strategies. This study proposes an integrated thermochemical pathway to store biohydrogen derived from biogas in the form of green ammonia. The system combines biogas upgrading, steam reforming, and ammonia synthesis through the Haber-Bosch process, modeled in Aspen Plus®, with a subsequent life cycle assessment (LCA) performed in Sphera® LCA for Experts (old GaBi). The objective is to compare the environmental performance of this biomass-based route with conventional hydrogen and ammonia production pathways. Preliminary mass and energy balances indicate that 181 kg of biogas can theoretically yield 100 kg of NH3, supporting the viability of the proposed route. By coupling simulation and LCA, this work aims to establish a methodological and quantitative framework for assessing the sustainability of ammonia as an energy vector and hydrogen carrier.
Presenter
Giulia CRUZ LAMAS
University of Brasilia, Mechanical Sciences Dpt., BRAZIL
Presenter's biography
I am a PhD candidate in Mechanical Sciences at the University of Brasília, working on Life Cycle Assessment, bioenergy systems, Sustainable Aviation Fuels, and low-carbon energy pathways. My research focuses on environmental modeling and carbon intensity assessment for renewable fuels.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
G. Cruz Lamas, University of Brasilia, BRAZIL
E. Amaral Silveira, University of Brasilia, BRAZIL
S. Monteiro e Silva, University of Brasilia, BRAZIL
Session reference: 2AV.3.8