May 2007

Special Report: Maintenance/Reliability

Repair of subsurface molten sulfur containment structures

Follow these guidelines to improve reliability

Kline, T., Structural Preservation Systems

At a time when air pollution caused by the burning of fossil fuels is a major global concern, everyone is looking for ways to create a cleaner-burning fuel. One method for achieving this objective is through the use of sulfur recovery units (SRUs), which capture the environmentally objectionable sulfur compounds released during the refining of petroleum products, thereby providing hydrocarbon fuels with significant reductions in air pollution upon combustion. Once these sulfurous compounds are extracted, however, they must be contained and then transported below ground so they can be used in a more environmentally feasible manner. Subsurface molten sulfur containment structures vary in siz

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