Carbon capture, utilization, and storage projects carry real safety risks beyond the capture chemistry. Compressed CO2 can asphyxiate workers in enclosed spaces, hydrogen and carbon monoxide can leak from pre-combustion systems, and oxygen-rich environments in oxyfuel plants raise fire and explosion hazards. This article maps those risks across the full CCUS chain, from capture and compression to transportation, utilization, and storage. It also covers the detection technologies used at each stage, including ultrasonic gas leak detectors, point-type gas detectors, and flame detectors with false-alarm discrimination. Standards such as ISO 27921 and ISO 27913 are referenced for transport and storage safety. Anyone planning or operating a CCUS project needs this kind of stage-by-stage safety review before committing to a detection layout.
