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Category: Outlook & Reviews

Price Trends

Ammonia markets were quiet in June, though both CF Industries and Grupa Azoty were reported to be looking for July tonnes and the enquiry will test how tight the market is going forward. Algeria has traded in the $400-405/t f.o.b. range, suggesting c.fr values in Europe might be slightly higher at $450-460/t c.fr. Supply from Algeria has been and continues to be somewhat restricted because of constraints caused by the hot weather. Gas supply however is easing in Egypt and further ammonia exports should emerge shortly.

Methods to mitigate metal dusting in syngas production

Industrial plants using synthesis gas at elevated temperatures risk metal dusting attack on the equipment, which are typically made of steels or Ni-based alloys. Parameters which impact the metal dusting risk are discussed and factors affecting the material selection and processing are described. One important focus is surface preparation, showing that grinding (40 grit) improves the metal dusting resistance compared to glass bead blasting and brushing. The surface treatment outweighs the impact of welds or the manufacturing route.

Gas is still the key

With all of the focus on low carbon ammonia and methanol developments, one could occasionally be forgiven for forgetting that most of the syngas industry relies upon natural gas as a feedstock, and that gas pricing and availability remain the key determinants of profitability for producers. As our article this issue discusses, even low carbon ammonia is likely to be largely based on natural gas, albeit with carbon capture and storage, at least for the remainder of this decade.