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Tag: Safety

Plant Manager+

This case study refers to the carbamate condensers and separators in the urea recirculation and hydrolyser desorber section of a urea plant, operating under normal operation at 0.3 MPa and 75°C. After 48,000 hours of operation, during the turnaround of the urea plant, the diaphragm type instruments were sent to the original equipment manufacturer for inspection and refurbishment. In addition to damage of the diaphragm, crevice corrosion was found in the gasket area (see picture) posing a health and safety risk .

Plant Manager+

A proper leak detection system for loose liners of high-pressure urea equipment is the number one safeguard for any urea plant, as has been proven by detailed safety studies and incidents investigations. However, leak detection systems easily choke especially when urea is present in the leaking solution. When no urea is present, the ammonium carbamate will dissociate above 60°C when flashing to atmospheric pressure in the leak detection system. But, when urea is present, it can solidify and at higher temperatures polymerise into biuret and triuret, which have even higher crystallisation temperatures. An early and reliable leak detection system is therefore very important. UreaKnowHow.com has developed such a system: the state-of-the-art AMMO LASER Leak Detection System.

People

Anglo American plc has announced a number of senior leadership changes. Seamus French has decided to leave Anglo American at the end of 2021 after 14 years with the company and will be replaced as CEO of Bulk Commodities by Themba Mkhwanazi , currently CEO of Kumba Iron Ore. Mpumi Zikalala , currently managing director of De Beers Managed Operations, has been appointed as CEO of Kumba. Both appointments will take effect on 1st January 2022. Mpumi’s successor at De Beers Managed Operations will be confirmed in due course.

On the lookout for gas leaks

Scanfeld™ is the world’s first remote sensing solution for fully automated early-warning gas leak detection for chemical plants. Using FTIR spectroscopy, Scanfeld™ identifies hundreds of different gases in real time from kilometres away. With just a few Scanfeld™ sensor units, large production sites, tank farms, or gas loading areas can be monitored reliably. Gas leaks are quickly detected, and the formation of dangerous gas clouds is monitored, measured, and visualised. René Braun of Grandperspective discusses how the system works and how it is being applied in industry.