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Seal Boxes : Not To Be Mistaken As A Cure For Ageing

Seal boxes : not to be mistaken as a cure for ageing

Commonly used to plug leaks on pipelines, seal boxes serve stop discharge flows without entirely shutting down production. Despite this advantage, several accidents have shown that this type of remedial action is not sustainable and moreover necessitates regular monitoring during[...]
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Chronic leakage of toxic effluents in a chemical plant

  • ALLEMAGNE
In a chemical plant, a leak of effluents containing acetonitrile (a harmful and flammable solvent) from the process wastewater system lead to groundwater contamination. As the network was used only sporadically, the duration of the leak could not be accurately[...]
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Rupture Of A Crude Oil Pipeline

Rupture of a crude oil pipeline

  • FRANCE
A longitudinal rupture occurred at approximately 6 a.m. on a crude oil pipeline (DN 500, buried depth: 1 m in clayey soil; commissioning date: 1965; pressure: 69 bar) at 1.5 km from a nature reserve. No disturbance or pressure surges in the pumping operation[...]
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Effects of time on industrial installations

Whether they are tanks, pipelines or other equipment, whether intensively or punctually used, all of them are liable to lose over time a part of their initial characteristics in terms of operation and safety. The serious confinement losses of Donges[...]
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Heat insulators

Under standard operation of the installations, the thermal insulation and its protective sheath can complicate the detection of an anomaly, such as the local overheating of a part of equipment, leakage or releaf of chimicals or even of a possible[...]
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Breakage of a black liquor tank

  • FRANCE
At 2:30 pm inside a paper mill located 5 km east of Arcachon Bay, a 5,000-m³ black liquor tank ruptured. Black liquor is a highly alkaline paper manufacturing residue composed of organic matter, soda and other chemical products; it serves[...]
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Accidental release of phosgene on a chemical platform

  • FRANCE
Around 10:30 pm in the isocyanate unit at a chemical plant, a sensor detected a rapid conductivity rise in a heat exchanger, in which phosgene (COCl2) pressurised to tens of bar was being reheated with water vapour at 28 bar before[...]
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Leak On A Kerosene Pipeline

Leak on a kerosene pipeline

  • ALLEMAGNE
A kerosene leak (A1 jet category) was detected on a pipeline (nominal diameter DN: 108, pressure: 13.8 bar, operational since: 1942) connecting a refinery to a storage area outside the oil platform site. The quantity of lost product was estimated[...]
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