Technical guidance on hazard analysis for onshore carbon capture installations and onshore pipelines

Topic(s): Carbon capture use and storage (CCUS), CO₂ hubs, CO₂ transport, Health safety and environment

This document sets out the methodology for implementing appropriate hazard analysis for carbon dioxide related hazards on onshore carbon capture installations and pipelines. Users will be able to review potential projects and assess the hazards and likely frequency of those hazards through the appropriate use of frequency data. Project engineers will them be able to understand the consequences of any loss of carbon dioxide containment by modelling the dispersion of the carbon dioxide. These concentrations, when combined with the HSE’s parameters for occupational exposure to carbon dioxide indicate the likely level of harm arising from an intentional or accidental release of carbon dioxide. The document includes:

• hazard and risk analysis for carbon dioxide systems onshore;
• failure frequency data sources for carbon dioxide;
• detailed guidance on using currently available commercial dispersion models for carbon dioxide;
• fatal area predictions using SLOT/SLOD data and dispersion modelling; and
• gaps and uncertainties in carbon dioxide hazard analysis.

It is an essential new guide for modellers, engineers and health & safety specialists working on global carbon capture and storage projects.

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