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Tag: Nitrogen

New contracts for Stamicarbon

Maire Group says that its nitrogen fertilizer technology licensor Stamicarbon has been awarded new contracts related to its NX STAMI UreaTM technology in Canada. The first award is a process design package and the licensing of an integrated urea and diesel exhaust fluid (DEF) production plant currently being developed by Genesis Fertilizers, a farmer-owned consortium, at Belle Plaine, Saskatchewan. The plant will have a urea melt capacity of 2,500 t/d, with operations expected to begin by 2029. Also thanks to a carbon capture and sequestration unit, it will be the first proposed low-carbon nitrogen fertilizer plant in Canada. Stamicarbon will apply its proprietary flash urea melt technology to enhance operational efficiency and reliability while minimising process steam consumption. The plant will also include a DEF facility with a production capacity of 1,500 t/d.

Conversion into hybrid ammonia plants

One challenge of a green revamp by stepwise injection of green hydrogen into existing ammonia/urea complexes is to cover the nitrogen demand for the ammonia synthesis while stepwise reducing the front-end load, usually by applying a cost-intensive air separation unit (ASU). thyssenkrupp Uhde GmbH has developed an advantageous concept whereby, instead of an ASU, the nitrogen gap is closed by the introduction of pretreated reformer flue gas back into the ammonia process, with the side effect to also enhance CO2 production.