May 2017

Environment and Safety

Installation of liquid sulfur degassing processes in existing SRUs

Over the last 35 yr, more companies worldwide have installed liquid sulfur degassing processes in their sulfur recovery units (SRUs) to minimize the dangers of the release of hydrogen sulfide from the produced elemental sulfur.

Van Grinsven, R., Van Son, M., Jacobs Comprimo Sulfur Solutions

Over the last 35 yr, more companies worldwide have installed liquid sulfur degassing processes in their sulfur recovery units (SRUs) to minimize the dangers of the release of hydrogen sulfide (H2S) from the produced elemental sulfur. H2S, which evolves from liquid sulfur, is capable of causing explosions in sulfur pits and sulfur storage tanks when the H2S concentration in the vapor space reaches a critical concentration. Of equal concern are the potentially lethal hazards of H2S exposure during the loading and transportation of sulfur. Despite several serious safety incidents in sulfur tanks and pits in the US in recent years, liquid sulfur degassing is not mandatory. This is in sharp cont

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