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How green is your green hydrogen or green ammonia? by Prof Andrew Hoadley
Tue, 2025-02-04 15:38 — venkatr
Location and Date:
Jan 31st, 2025 (Friday), 4 PM, DESE Seminar Room, 2nd Floor
Abstract: Ammonia is one of several essential chemicals that will need to be decarbonised to meet climate mitigation targets. In addition to its widespread use in chemical manufacturing and fertilizer production, it has potential application as a combustible fuel, energy storage medium, and hydrogen carrier. There is growing interest in alternative pathways that utilise renewable energy sources for the production of ammonia, such as renewable electricity for water electrolysis, generating hydrogen, which is then used in conjunction with the Haber-Bosch process to produce ‘green ammonia.’
In order to establish the credibility of either “green” hydrogen or “green” ammonia being sourced from low-carbon feedstocks, governments and environmental agencies have developed a Guarantee of Origin methodologies for carbon intensity measurement. These methodologies focus on accounting for grid emissions associated with the use of electricity from the grid.
I will present findings based on an on-line life cycle assessment tool developed by Palmer et al1 for carbon intensity of green hydrogen and green ammonia. The assessment tool can be configured for different carbon accounting methodologies. These are compared against conventional production via natural gas reforming.
I will present findings based on an on-line life cycle assessment tool developed by Palmer et al1 for carbon intensity of green hydrogen and green ammonia. The assessment tool can be configured for different carbon accounting methodologies. These are compared against conventional production via natural gas reforming.
Short-Bio: Andrew Hoadley is a recently retired faculty member of Monash University where he was an active member of staff for 25 years. His research spans Chemical Engineering Design methodologies, solids dewatering and drying and is now involved with coating and drying technologies. He is supervising 2 on-going IITB-Monash PhD students and has previously supervised 5 successful IITB-Monash PhD students and more than 15 other PhD students. He has a publication H-index of 43.