Next Generation Carbon-Free AmmoniaPlants Powered by Small Modular NuclearReactors for Deep Industrial Decarbonization

Team: Austin Gardiner, Aiden Meek, ManjurBasnet, Frank Katjipaha, Summer Wooten,and Dr. Hailei Wang

Design 1: Baseline Integration

Design 1: Baseline Integration

Design 2: Freeze Desalination

Design 2: Freeze Desalination

Ammonia production through traditional methods accounts for over 420 million tons of CO2 annually, which is approximately 2% of global greenhouse gas emissions. [1]

diagram 1

Our designs improve system efficiency by utilizing waste heat from subsystem product streams.

diagram 2

Water purification through freeze desalination allows the system to operate in areas where fresh water is scarce.

diagram 3

[1] Liu, X, Elgowainy, A, Wang, M, Life cycle energy use and greenhouse gas emissions of ammonia production from renewable resources and industrial by-products, Green Chem., 2020, 22, 5751-5761

Green hydrogen from electrolysis and pure nitrogen from cryogenic air separation feed into the Haber-Bosch plant and are reacted to produce carbon-free ammonia.

diagram 4

Heat and electricity from the NuScale SMR are used to perform HTSE instead of relying on methane steam reforming for hydrogen production

diagram 5

The reference designs arebeing modeled using Aspen Plus. System economics and energy efficiency will be compared to a baseline unintegrated model and a traditional system.