Category: Outlook & Reviews

Ammonia synthesis catalysts have long lives and catalyst replacement is an infrequent activity. Many people will go through their careers in the ammonia industry without ever having to replace a synthesis catalyst and the infrequent nature of catalyst replacement means that many plants may not have direct experience of this activity. Ammonia synthesis catalyst can present a range of hazards throughout the replacement process, from transport through loading, reduction, start-up, shutdown and discharge, but the good practice illustrated in this article, and collaboration between catalyst suppliers and end users can ensure safe and successful catalyst changeouts.

As industry trends add pressure to optimise processes, new digital technologies for roundthe-clock, data-driven decision-making can help plants boost production efficiency without time-consuming manual analysis or large-scale investment. Here, Dr S. Werner of Navigance explores their potential and shares the difference they are already making.

The ammonia industry seems to have quite a buzz about it at the moment. As can be glimpsed in our Nitrogen Industry News section this issue, the number of proposed green ammonia production sites continues to grow, as does interest in ammonia as a hydrogen or energy carrier, while the shipping sector continues to seriously consider ammonia as a green fuel candidate for the longer term. The latter prospect could see current ammonia demand double by 2050, although as our article on sustainable nitrogen production on page 22 notes, whether enough renewable power will exist by then to generate that must be seriously doubted.

Because of the ongoing pandemic, this year’s CRU Nitrogen + Syngas conference was held as a ‘virtual’ event, in early March 2021.

Suddenly it’s a good time to be a sulphur producer again. Sulphur prices started 2020 at a low point of $40/t, a level not seen for a decade or more. However, after a slight recovery when the pandemic hit and refineries began reducing production, since August the market trend has been rapidly upwards, now approaching levels of $200/t that have not been seen for a couple of years.

This year’s SulGas conference, covering sulphur recovery and gas treating with a special focus on India and southeast Asia, was run as a virtual event from February 1st to 3rd 2021.

The profound demand shock caused by Covid-related lockdowns has had a major impact upon the refining industry. Run rates have been at low levels in North America and Europe, and a new wave of rationalisation is under way, at the same time that capacity continues to grow in Asia. Will this spur diversification into petrochemicals and low carbon options for Atlantic basin refiners?

Demand for nickel sulphate is expected to rise rapidly this decade to feed increased battery production for electric vehicles. At the same time, diminishing sources of high grade nickel ores are leading to a renewed focus on high pressure acid leaching (HPAL) of laterite ores, with a significant impact on sulphur and sulphuric acid demand.

Restrictions and lockdowns across the globe have significantly reduced oil demand, impacting refinery run rates. This has aided in reducing sulphur liquidity, supporting the short term view.

Meena Chauhan, Head of Sulphur and Sulphuric Acid Research, Argus Media, assesses price trends and the market outlook for sulphur.