Evaluation of 2 phase Pressure drop correlation for CO2 Pipeline Transport with N2 Impurity

Abstract

In the mean time of rising consideration of CCS as mitigating measurement for global warming, there are several problems with CCS transportation technology that should be solved for safe and robust operation of pipeline. During CCS process, impurities such as N2, O2, SOx, NOx etc are intruded into CCS stream. Those impurities changes the properties of CCS stream, and also the capacity of transport and storage. In this study, 2 phase flow pressure drop correlation with working fluid as CO2-N2 mixture were evaluated with experimental data. Both Homogeneous flow model and Seperate flow model were examined and compared each other. The result of 2 phase flow visualization showed that the flow pattern was clearly different at 70bar compared with 85bar condition., impurities such as N2, O2, SOx, NOx etc are intruded into CCS stream. Those impurities changes the properties of CCS stream, and also the capacity of transport and storage. In this study, 2 phase flow pressure drop correlation with working fluid as CO2-N2 mixture were evaluated with experimental data. Both Homogeneous flow model and Seperate flow model were examined and compared each other. The result of 2 phase flow visualization showed that the flow pattern was clearly different at 70bar compared with 85bar condition.