Experimental Study on CO2-H2O mixture transport in horizontal pipeline

Abstract

CCS is considered as one of the crucial technology to reduce anthropogenic carbon dioxide exhaust and to mitigate global warming. Among CCS processes, capture side technology is now developing in many countries with large resources for cost reduction and process efficiency improvement, but CO2 transport R&D is in the initial stage except a few cases. During transport process, impurities effect on the CO2 pipeline transportation with changing specific volume, boiling point, critical point, and, increasing possibility of hydrate formation. Typical CCS impurity includes N2, O2, H2O, SOx, H2S, etc. In this study, experimental apparatus was designed and built to figure out the effect of H2O impurity on the CO2 pipeline transportation. With changing H2O impurity ratio, pressure drop was measured and the data was compared with the results of conventional homogeneous flow model and commercial process modelling software. Flow visualization also carried out during experiment with high speed camera.cost reduction and process efficiency improvement, but CO2 transport R&D is in the initial stage except a few cases. During transport process, impurities effect on the CO2 pipeline transportation with changing specific volume, boiling point, critical point, and, increasing possibility of hydrate formation. Typical CCS impurity includes N2, O2, H2O, SOx, H2S, etc. In this study, experimental apparatus was designed and built to figure out the effect of H2O impurity on the CO2 pipeline transportation. With changing H2O impurity ratio, pressure drop was measured and the data was compared with the results of conventional homogeneous flow model and commercial process modelling software. Flow visualization also carried out during experiment with high speed camera.