Catalyst development for nitric acid plants is strongly dependent on operating pressures and nitrogen loading levels. Johnson Matthey reviews some of the key catalyst design principles, emphasising the critical role of operating pressure in catalyst selection and highlighting the innovative contributions of Johnson Matthey in advancing catalyst technology for ultra-high-pressure ammonia oxidation in nitric acid plants.
A summary of papers presented at CRU’s Nitrogen+Syngas conference, this year held at the Gothia Towers in Gothenburg, Sweden.
As the production of renewable methanol continues to scale up, it will provide a long term, carbon-neutral energy solution to different transport sectors. However, the optimum design parameters for green methanol plants are substantially different to natural gas-based methanol plants and pose new challenges to the methanol loop designer. Johnson Matthey discusses the challenges and presents the benefits of the tube cooled converter for e-methanol production.
Maire Group subsidiary MyRechemical has been awarded a feasibility study for the integration of its proprietary waste-tosyngas technology in a large-scale conversion plant that would transform solid municipal waste into 120,000 t/a of sustainable aviation fuel (SAF). MyRechemical would provide the gasification unit to transform solid waste streams into synthesis gas, which would then be converted into low carbon ethanol and then to SAF.
With the current focus on decarbonising ammonia production, Johnson Matthey explains the important role of high activity ammonia synthesis catalyst in the production of green ammonia.
CF Fertilisers UK Limited, a subsidiary of CF Industries, says that it plans to permanently close the ammonia plant at its Billingham fertilizer complex in order to secure the long-term sustainability of its business in the UK. The Company intends to continue to produce ammonium nitrate (AN) fertiliser and nitric acid at the Billingham site using imported ammonia, as it has for the last 10 months following its decision to temporarily idle the plant in August 2022.
Sustainable aviation fuel (SAF) is increasingly seen as a vital tool in the aviation sector’s transition to net zero. These drop-in fuels, which can be derived from bio and renewable-derived syngas, are used to dilute the fossil-derived components of fuel and are fully compatible with existing fuel infrastructure. This positions SAF as a convenient and rapid route towards decarbonisation. However, questions remain around its ultimate viability at scale and whether it really can be the ‘silver bullet’ aviation leaders are looking for. We spoke to Paul Ticehurst from Johnson Matthey (JM) to shed some light on SAF and the future role of syngas in aviation.
The closure of CF Industries’ ammonia plant at Billingham, Teesside (see Industry News, page 8) marks the end of a long era for UK fertilizer manufacture. The facility was the last operating ammonia plant in the country, following CF’s decision to permanently close its site at Ince in Cheshire in June last year. Going forward, Billingham will now rely on imported ammonia as a feedstock to run the nitric acid and 625,000 t/a ammonium nitrate plants on the site.
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.
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.