![]() ![]() Material/component damage due to properties of liquid/supercritical CO2. Overpressure due to rapid sublimation of solid CO2 within a closed pipework. Design, operation and maintenance of relief devices needs special care.Įngineers need to understand Temperature Entropy/other associated diagram to predict percentage of Solid formation. Overpressure due to vent or relief line blockage (solid CO2 formation). Overpressure from thermal expansion of a trapped liquid phase inventory. Internal corrosion due to impurity levels (eg: water), also hydrate formation! Qualifying material for re-pressuring is necessary. Low temperature embrittlement of containment due to rapid depressurization of a liquid phase CO2/ due to CO2 stream flow expansion through valve and or flow restrictor. Impurities impact Phase envelope and hence behavior of CO2. ![]() Purity of captured CO2 and reliable source is key. Process safety challenges of CCUS project Most organizations are focusing on utilization of CO2 along with long-term geological storage.įrom last two years, I have involved in Carbon Capture Utilization Storage (CCUS) projects to provide technical safety support and assurance for an onshore oil & gas exploration and production company.įollowing are my views and learnings associated with CCS/CCUS projects. Organizations have committed to reduce CO2 emissions significantly by 2030. Most nations have announced their commitment to achieve net zero emissions by 2050 in line with Paris climate agreement/s, and have set out an orderly transition pathway to achieve objective. ![]()
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