Flow Meter Helps Refinery Optimize Boiler Air Feed For Sulfur Recovery Units

Sulfur is present in various forms during the production and refining of hydrocarbon fuels (crude oil), including sulfur dioxide (SO₂) gas and hydrogen sulfide gas (H₂S). The sulfur found in crude oil products is toxic and presents a serious hazard to workers, equipment and facilities.

Exposure to sulfur becomes toxic at 10 ppm, lethal at 800 ppm and it is flammable when present in excess of 4.3 percent by volume in air. The presence of sulfur and exposure to it in its various forms is highly regulated worldwide by health, safety and environmental agencies.