Magazine: Sulphur

Two dam failures at the Morowali industrial park in Indonesia have killed three people. On March 16, during heavy rains, the PT Huayue Nickel Cobalt tailings storage facility at the Morowali industrial park failed, and tailings flowed into the Bahadopi River. The breach flooded facilities at the industrial park and the village of Labota. Five days later another tailings dam inside the industrial park, owned by PT Qing Mei Bang (QMB) New Energy Materials, collapsed, killing three workers. The affected tailings facilities store acidic waste from high pressure acid leaching (HPAL). It is estimated that for every ton of nickel, HPAL processing generates 150-200 tons of tailings. The affected facilities use filtered tailings, where some of the water is removed from the tailings before they are placed the dam. However, heavy rains, landslips and seismic activity appear to have affected the stability of some of the dams.

The Tunisian cabinet has met to review its future programme for phosphate production, transport, and processing for the 2025-2030 period, as well as the current situation of the Tunisian Chemical Group and its work plan for the same period, according to a government statement. The prime minister stressed the need to develop phosphate production as a national resource and a cornerstone of the national economy that must regain its role and position in supporting state revenues and wealth creation, including increasing production capacity, processing, and exports, while investing in modern technology to enhance productivity, exploring new export markets, and prioritising environmental considerations.

Axens says that it has completed the expansion of its Axens Catalyst Arabia Ltd site, aimed at providing local and regional partners with the latest tail gas treatment catalysts, in addition to the site’s legacy catalyst hydroprocessing manufacturing capacity. This makes Axens is the first and only company to produce tail gas treatment catalysts in the Middle East. The company says that the expansion consolidates its capacity to serve its regional customers to meet regulatory requirements and maximise sulphur recovery by up to 99.9%, minimising SOx emissions. The production site supplies the region’s refining and gas industries with the latest generation of Axens’ catalysts, capable of operating at lower temperatures than conventional catalysts, and resulting in lower energy consumption.

Astron Energy, a subsidiary of Glencore, says that it will spend $328 million to upgrade its South African crude oil refinery in order to comply with the country’s upcoming cleaner fuel regulations. The investment aims to bring the facility in line with South Africa’s Clean Fuels II standards, which mandate lower sulphur content in both petrol and diesel. The 100,000 bbl/d refinery near Cape Town is one of only two remaining operational refineries in the country. Astron says that construction work is already under way for a gasoline hydrotreating plant that will reduce sulphur levels to Euro 5 (<10ppm sulphur) specifications. The regulations have been delayed to July 2027 due to concerns over the cost of upgrading existing refining infrastructure. n

Avenira has secured an A$7.56 million strategic investment from majority shareholder Hebang Biotechnology to progress its Wonarah phosphate project in Northern Territory. The investment, in which Hebang will acquire 1.08 billion shares priced at A$0.007 each, will boost its equity holding in Avenira to 49%. Hebang has also agreed to provide Avenira with an unsecured drawdown loan facility to be repaid on completion of the placement or after the date of the first drawdown.

Together with Slovnaft, Worley Comprimo has developed a near real-time monitoring dashboard using data sharing via the Cloud. Using a two-year data set containing minute average data, trends and insights were used to optimise performance. This paper describes the main learnings and improvements with respect to energy optimisation, which supports sustainability targets for Slovnaft.

The Middle East’s premier event for the sulphur global industry, MEScon 2025, returns to the Conrad Abu Dhabi, Etihad Towers from 19 to 22 May 2025.

Rheinhütte Pumpen has further developed its GVRN sulphuric acid pump so it can also be used in high-temperature applications such as in heat recovery systems.

The Self-Cleaning Liquid Sulphur Candle Filter (LSCF) is setting a new benchmark in liquid sulphur filtration. With its innovative candle arrangement and advanced back-flushing technology, it enhances filtration rates significantly and minimises downtime for cake discharge. Jan Hermans of Sulphurnet explores the LSCF design, process parameters, and operational advantages.

Wood presents the pros and cons of leaving a refinery SRU on hot standby versus long-term idle taking into consideration reliability, safety, and operations responsibilities during extended downtime.