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Open AccessArticle

High-Pressure Hydrogen Sulfide Experiments: How Did Our Safety Measures and Hazard Control Work during a Failure Event?

Department of Chemistry, University of Calgary, 2500 University Drive, NW, Calgary, AB T2N 1N4, Canada
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Safety 2020, 6(1), 15; https://doi.org/10.3390/safety6010015
Received: 3 January 2020 / Revised: 3 February 2020 / Accepted: 18 February 2020 / Published: 2 March 2020
Hydrogen sulfide (H2S) is a hazardous, colorless, flammable gas with a distinct rotten-egg smell at low concentration. Exposure to a concentration greater than 500 ppm of H2S can result in irreversible health problems and death within minutes. Because of these hazards, operations such as oil and gas processing and sewage treatment that handle or produce H2S and/or sour gas require effective and well-designed hazard controls, as well as state-of-the-art gas monitoring/detection mechanisms for the safety of workers and the public. Laboratories studying H2S for improved understanding must also develop and continually improve upon lab-specific safety standards with unique detection systems. In this study, we discuss various H2S detection methods and hazard control strategies. Also, we share our experience regarding a leak that occurred as a result of the failure of a perfluoroelastomer O-ring seal on a small stirred autoclave vessel used for studying H2S hydrate dissociation/formation conditions in our laboratory, and discuss how our emergency response plan was activated to mitigate the risk of exposure to the researchers and public. View Full-Text
Keywords: hydrogen sulfide hydrate; safety; sour gas laboratory; gas alarm; elastomer failure; natural gas flow assurance; high-pressure research safety hydrogen sulfide hydrate; safety; sour gas laboratory; gas alarm; elastomer failure; natural gas flow assurance; high-pressure research safety
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Adeniyi, K.I.; Wan, H.H.; Deering, C.E.; Bernard, F.; Chisholm, M.A.; Marriott, R.A. High-Pressure Hydrogen Sulfide Experiments: How Did Our Safety Measures and Hazard Control Work during a Failure Event? Safety 2020, 6, 15.

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