Magazine: Nitrogen+Syngas

One of the key challenges of producing RFNBO (renewable fuels of non-biological origin) compliant ammonia is managing the intermittency associated with renewable energy sources for hydrogen production. Furthermore, the additional costs associated with managing this intermittency can be significant. In this article, Dr Solomos Georgiou of AFRY Management Consulting explores those additional costs as well as potential ways to achieve cost savings and make RFNBO-compliant ammonia production competitive against conventional ‘grey’ ammonia.

Revamping aging urea plants with the latest urea technology brings many benefits. Not only can greenhouse gas emissions be reduced, but the overall performance and sustainability of these facilities can also be optimised. Hiroo Kunii of Toyo Engineering Corporation discusses TOYO’s approach to urea plant revamping.

Venkat Pattabathula, a member of the AIChE Ammonia Safety Committee, reports on the American Institute of Chemical Engineers’ (AIChE) Safety in Ammonia Plants and Related Facilities Symposium held in San Diego on 8-12 September 2024.

With a large number of green ammonia projects under development, financing remains the greatest hurdle to getting ventures off the ground.

Methanex Corporation has entered into a definitive agreement to acquire OCI Global’s international methanol business for $2.05 billion. The transaction includes OCI’s interest in two world-scale methanol facilities in Beaumont, Texas, one of which also produces ammonia. The transaction also includes a low-carbon methanol production and marketing business and a currently idled methanol facility in the Netherlands.

Stamicarbon, in collaboration with KT Tech, has developed a cryogenic energy storage system, named GALCES , for green ammonia plants that addresses the intermittency challenges of renewable energy supply. The technology not only supports the sustainability goals of the ammonia production industry but also contributes to broader energy market stability and efficiency.

In our May/June issue I discussed the race to be the next major green shipping fuel, in which methanol and ammonia both remain significant contenders, but which methanol appeared to be pulling ahead in. But more recently, a few stories from the past few weeks have left me not quite as sure as I was about that. Firstly, there’s the news in our Syngas News section this issue that the FlagshipONE green methanol project in Sweden is being delayed and possibly abandoned, because demand for green methanol for shipping has not actually materialised as fast as was anticipated.

With green ammonia from renewable energy facing cost hurdles to adoption, thoughts have turned to using nuclear energy as a carbon free alternative.

TOYO has recently introduced new proprietary urea technologies to its technology portfolio including a novel dust scrubbing system with integrated wet electrostatic precipitator (WESP) for ultimate clean-up of granulation or prilling exhaust air, to achieve urea dust emissions of less than 5 mg/Nm3 . Takuhiro Minato of Toyo Engineering Corporation explains how the new system works.

In China, domestic prices are expected to come under significant downward pressure, with seaborne indications already following suit, with buyers said to have rejected offers around the $375/t c.fr mark.