Venkat Pattabathula , a member of the AIChE Ammonia Safety Committee, reports on the American Institute of Chemical Engineers’ Safety in Ammonia Plants and Related Facilities Symposium, held in Munich, Germany, from 20-24 August 2023.
Large-scale ammonia cracking for conversion of ammonia to hydrogen is a proven technology with decades of industrial experience. Topsoe shares its experience within ammonia cracking and presents an improved and highly energy-efficient (96%) ammonia cracking technology, H2Retake™ , developed based on Topsoe’s proven technology and industrial experience.
With the aid of a rigorous kinetic model for TGU hydrogenation reactors, incorporating catalyst deactivation mechanisms, designers and operators can forecast the life expectancy of reactor catalyst beds.
The world’s transition toward the use of hydrogen and ammonia as clean energy and fuel sources will depend upon production technologies that are affordable, scalable, and meet net zero carbon targets. 8 Rivers recently introduced8 RH2 , a groundbreaking solution that offers world-leading efficiency in hydrogen production and captures over 99% of CO2 emissions. Maulik Shelat of 8 Rivers provides an overview of the technology with a comparison to other low-carbon hydrogen production technologies.
Although the nitric acid industry has an extensive history dating back centuries, nitric acid production continues to be a dynamic process with bespoke system solutions necessary per plant rather than a one size fits all. Kate Cardonne of Johnson Matthey discusses strategies to balance the cost and performance in nitric acid production.
Highly efficient ammonia synthesis and subsequent cracking to hydrogen are key processes in the transition to the green hydrogen economy. Catalysts play an important role in the ammonia cracking process. Clariant offers both nickel and precious metal catalysts for this application and research on robust catalysts that allow lower temperatures for increased energy efficiency is ongoing.
Sulphur dust is one of the greatest hazards when producing and handling solid sulphur, and methods for its suppression are vitally important to prevent fire and explosion.
Gasification, particularly of waste and biomass, is seeing interest as sustainable sources of syngas. But there are both technical and commercial challenges to wider adoption.
Combining a deep scientific knowledge, engineering and field experience with state-of-the art technology, Johnson Matthey is proud to introduce its next generation of digital simulation tools via its JM-LEVO™ digital portals to further support customers in achieving their operational and sustainability targets.
Advances in clean hydrogen and ammonia production is fuelling worldwide interest in a new market for hydrogen and ammonia to provide a reliable low-carbon energy future. Ammonia cracking, the dissociation of ammonia back into hydrogen, delivers a pathway to large-scale sustainable hydrogen production. In this article KBR, Johnson Matthey, thyssenkrupp Uhde, Duiker, Proton Ventures and Casale report on their technologies and approaches to ammonia cracking in a low carbon economy.