What is ISO/TR 27921 about?
ISO/TR 27921 discusses carbon dioxide capture, transportation, and geological storage. ISO/TR 27921 describes the main compositional characteristics of the CO2 stream downstream of the capture unit, considering common purification options. Accordingly, ISO/TR 27921 characterizes the different types of impurities and present examples of concentrations determined in recent capture pilot projects as well as through literature review. ISO/TR 27921 identifies ranges of concentrations, giving priority to in situ measurements when available.
ISO/TR 27921 also helps you to identify potential impacts of impurities on all components of the Carbon capture and storage (CCS) chain, from surface installations (including transport) to the storage complex. For example, impurities can have a significant effect on the phase behavior of CO2 streams in relation to their concentration. Chemical effects also include the corrosion of metals.
Who is ISO/TR 27921 for?
ISO/TR 27921 on CO2 stream composition is useful for:
- Manufacturing units
- Power plants
- Environmental scientists
- Quality control personnel
- Health and safety authorities
Why should you use ISO/TR 27921?
ISO/TR 27921 gives you guidelines for CO2 capture, transportation, and geological storage (CCS). This technology is a technically viable solution to reduce CO2 emissions of large stationary point sources and therefore to limit future global temperature increases.
ISO/TR 27921 provides up-to-date consideration of CO2 stream quality issues for operators, regulators, and stakeholders based on research results and the experience of the various pilot and industrial-scale CCS projects. The first part of this report summarises existing information related to CO2 stream composition that generally results from particular capture processes. Then this report describes possible impacts and effects of the various impurities that may occur in the CO2 stream on various downstream elements of a CCS chain, including operational aspects, potential implications for health, safety, and environmental issues, and quantification of greenhouse gas emissions.
