Tag: Maintenance

Digitalisation brings with it a fresh set of issues as well as opportunities for safety management.

Structural Technologies outlines practical inspection, assessment, and repair strategies to maintain below-grade sulphur pits to help owner/operators maintain serviceability, extend asset life, and avoid costly process interruptions.

Hongda's 100,000 t/a zinc smelter, in China's Sichuan Province, completed scheduled maintenance and equipment upgrading and officially resumed production on 21st June, the company said. The smelter had been shut down for planned maintenance since January, during which time a modernisation project for the electrolytic zinc smelting system was also carried out. Following the nearly six-month revamp, the resumption of production is expected to improve overall operational efficiency, reduce unit production costs, and increase the utilisation rate, The company said. The stable supply of sulphuric acid generated by the zinc smelter will effectively leverage the synergies of the "sulphur-phosphorus" industrial chain in the company, an help alleviate cost pressures on the company's phosphorus chemical business segment.

Konkola Copper Mines (KCM), a subsidiary of Vedanta Resources, said on June 3rd that it had begun a planned 60-day maintenance shutdown of its Nchanga smelter in Zambia. KCM said that the routine maintenance is aimed at improving operational efficiency, equipment reliability, and long-term production performance, and forms part of the company’s broader modernisation strategy, […]

CF Industries has delayed a planned multi-week maintenance turnaround at its Donaldsonville, Louisiana complex, the world’s largest ammonia production facility, in response to the supply disruption caused by the Strait of Hormuz closure, the producer announced in a press release. The company said the decision is expected to make approximately 100,000 tonnes of additional granular urea available to US customers during the spring application season. CF Industries added that it is also prioritising new sales to domestic customers over higher-priced export orders for the duration of the spring planting season.

A full sulphur pit turnaround and rehabilitation is typically a once in a lifetime experience for refinery personnel. Specialists in sulphur pit turnarounds, Gavin Palmer of Brindley Engineering, Tom Kline and Bob Hall of Structural Technologies have compiled a database based on multiple sulphur pit turnarounds to identify typical deficiencies in mechanical systems, along with improvements to enhance operability, restore functionality and meet all codes/standards and best practices.

Venkat Pattabathula of SVP Chemical Plant Services, Taylor Archer of Clariant and Seshu Dharmavaram of Air Products, all AIChE Ammonia Safety Committee members, look back at some of the key lessons learned from the Symposium’s 70 year history.

Aurubis says that it has successfully completed scheduled maintenance at its Pirdop plant on time. The two-month operation marked the largest planned maintenance shutdown at the site in the past 30 years. With an investment of €115 million, Aurubis says the work ensures the long-term reliability and performance of the facility. Key upgrades included a full overhaul of the flash smelter, replacement of two electrostatic precipitators, and a major modernisation of the sulphuric acid production line. This modernisation involved installing a new converter and replacing six heat exchangers.

Becht’s Risk Based Work Selection (RBWS) process is a structured, data-driven method that uses risk and benefit-to-cost analysis to optimise turnaround and maintenance work in industrial facilities, resulting in significant cost savings and improved reliability.

thyssenkrupp Uhde has signed a 5-year framework service agreement with Brunei Fertilizer Industries, aimed at advancing digitalisation and implementing clean technologies in the fertilizer industry. Central to these efforts is the set-up and implementation of a digital twin, which will provide a virtual representation of the plant to enable real-time monitoring, predictive maintenance, and data-driven decision-making. This technology, together with specialized trainings, will allow BFI to enhance operational safety, reduce downtime, and achieve greater energy efficiency.