Section: CRUNS Features

A review of papers presented at CRU’s Nitrogen+Syngas 2025 Expoconference, held in Barcelona from February 10th-12th 2025.

A European ammonia plant, has successfully restarted following a revamp of the process gas cooling section, executed by Casale. Casale replaced the outdated boilers located downstream of the secondary reformer with three new double-tube type boilers supplied by Arvos. The new boilers were installed in the same location as the previous ones, minimising investment costs and plant modifications. The more robust and reliable design of the Casale-Arvos boilers has resulted in enhanced overall performance and reliability of the ammonia plant.

Paralloy has developed Omega technology, an advanced reformer tube design that enhances heat transfer, gas turbulence, and process efficiency. Dr Dominique Flahaut of Paralloy explores the real-world implications of Omega reformer tubes.

Esben Sørensen and Glenn Rexwinkel of Plug Power review the safety aspects of integrating hydrogen production by electrolysis into existing ammonia processes. Novel safety risks associated with such changes are surmountable and the analysis presented shows that green ammonia production can be no more hazardous than traditional ammonia production.

New carbon capture-based plants could see US nitrogen capacity jump over the next few years, but Trump attacks on IRA tax credits may scupper some ongoing projects.

India’s push to replace its sizeable urea imports with home grown capacity continues, but may not keep pace with rising domestic demand.

Nitrogen+Syngas ’s annual listing of new ammonia, urea, nitric acid and ammonium nitrate plants.

High energy storage costs for renewable-based technologies are likely to make European long term carbon prices considerably higher than their present levels.

Blue hydrogen has emerged as a crucial technology for decarbonisation as nations around the world work towards net-zero carbon targets. By decarbonising hydrogen production and exploring clean hydrogen sources we can fully harness the potential of hydrogen in the global energy transition. Johnson Matthey, Topsoe and Casale report on their strategies and advanced technical solutions for large scale blue hydrogen production.

Syngas generation units (SGU) represent a large portion of the capital and operational expenditure of ammonia plants and are critical from a mechanical reliability standpoint. Related capex/opex optimisation and mitigation of possible operational problems are key targets for ammonia plant owners. Giovanni Manenti introduces NITROQUENCH® technology which focuses on these key targets for ammonia SGU.