Impact of CO2 impurity on CO2 compression, liquefaction and transportation

Wetenhall, B. and Aghajani, H. and Chalmers, H. and Benson, S.D. and Ferrari, M-C. and Li, J. and Race, J.M. and Singh, P. and Davison, J. (2014) Impact of CO2 impurity on CO2 compression, liquefaction and transportation. Energy Procedia, 63. pp. 2764-2778. ISSN 1876-6102

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Abstract

Abstract The impurities present in carbon dioxide (CO2) streams for Carbon Capture and Storage (CCS) schemes are extremely important for CO2 pipeline and ship transportation affecting, for instance, the range of operation, safety considerations, fracture, cracking, corrosion control, dispersion in the event of a release, fluid density, operating pressure and temperature and the quantity of CO2 that can be transported. The range and levels of potential impurities present in captured CO2 from CO2 capture facilities will differ between sources and also between the capture technologies installed at the CO2 emission sources. However, the potential CO2 specifications that could enter the transport and storage systems, particularly from industrial sources, remain relatively under-researched. Consequently, the effect of these potential impurities in CO2 streams on CO2 transportation also needs to be understood. This paper summarises the main findings of an IEAGHG study, “Impact of CO2 Impurity on CO2 Compression, Liquefaction and Transportation”, commissioned to identify potential impurities and address the consequences of their impact on CO2 transportation.