Section: CRUSU Market & Features

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

A seasonal decline in weather conditions in the eastern Atlantic will hinder operations at Jorf Lasfar in Morocco through the end of 2021 and into 2022. In South Africa, port congestion problems were challenging at Richard’s Bay with vessels subjected to 15 day wait times, increasing demurrage costs.

As sulphur recovery units operate at progressively higher temperatures, creep stress in the furnace refractory lining can lead to deformation or even failure of the bricks and require the shutdown of the SRU. UK-based DSF Refractories have developed a product which minimises creep stress damage at high temperatures, for a longer-lived furnace lining.

Sulphur is becoming an increasingly important crop nutrient, due to a combination of lower airborne sulphur emissions, the increasing prevalence of high analysis fertilizers, and higher cropping intensities.

RSK and its subsidiary ADAS have developed a sustainable solution for the disposal of sulphur waste generated from a natural gas processing facility in Iraq. C. Teulon of RSK reports on the research that was carried out to test whether the waste sulphur from a biological sulphur removal process could be applied in agriculture to increase the quality and quantity of crops in Iraq.

Although the number of new sour gas developments has slowed in recent years compared to the large boost of the previous decade, sour gas projects continue to be a major source of new sulphur production.

Considering the current shift to produce biofuels instead of conventional oil products, M. van Son of Comprimo discusses the impact that this may have on the ability to process the sour water acid gas streams produced in existing or new sour water strippers.

Developments in sulphuric acid technology and engineering know-how are highlighted by recent project case studies from DuPont Clean Technologies, Metso Outotec and thyssenkrupp Uhde.

The Valkyrie™ process was first introduced as a reborn version of redox technology for treating H2 S in natural gas processing.In this article Streamline Innovations Inc. highlights some of the new developments and successful applications of the Valkyrie process and its redox technology, in both gas and water streams.

M. Rameshni and S. Santo of RATE discuss different sour water stripping gas processing options, depending on contaminants in the sour water streams and site-specific requirements.