Maire Group’s Stamicarbon awarded design contracts for US green ammonia plant

Maire Tecnimont SpA subsidiary NextChem Holding, through Stamicarbon, has been awarded licensing and basic engineering design contracts for a 450 metric tonnes per day green ammonia plant by a ‘leading’ North American fertiliser producer.

The US plant, expected to start operations in 2026, will produce green ammonia to be used as feedstock for nitrogen-based fertilisers and be based on Stami Green Ammonia technology.

The main building block for green fertilisers, the technology enables environmentally friendly ammonia production by using water electrolysis to make hydrogen and obtaining nitrogen from the air instead of steam reforming fossil fuels.

The combination of proprietary technology and engineering requirements to build small-scale green ammonia plants offered by Stamicarbon, NextChem Holding’s nitrogen technology licensor, represents a sustainable and highly competitive alternative to the conventional processes.

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