When is CO2 more hazardous than H2S
Data shows potential harmful effects to workers due to acid gas exposure
Many different types of facilities produce or use streams containing a high carbon dioxide (CO2) content (98+%) with low hydrogen sulfide (H2S) concentrations, e.g., a few parts per million by volume (ppmv) to a few volume percent (vol%). Examples include CO2-flood enhanced oil recovery, pre-combustion carbon capture (from fossil fuel-fired power plants and industrial facilities) and sequestration, natural gas conditioning, and agricultural manufacturing, among others. In all of these industries, the potential for a release in a processing step or during transmission through a pipeline exists.
The health effects and dangers of H2S are well known, but those of CO2 are not as commonly underst
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