A Method for Predicting the Phase Characteristics and Physical Properties of Carbon Dioxide Containing Impurities under Various Transport Conditions
Year: 2023
Type: preprint
Abstract: Based on the cubic equation of state, the effect of impurities such as nitrogen, methane, hydrogen and oxygen on the characteristics of phase behavior of carbon dioxide (CO2) was discussed in this study.A prediction model of the phase characteristics of CO2 system containing impurities was established by correlating phase equilibrium and critical state prediction.Additionally, a mathematical model for the calculation of physical properties of the multicomponent system was established.The changing rules of the physical properties including density, viscosity, Joule-Thomson coefficient, and specific heat capacity at constant pressure were analyzed.Based on the constructed prediction model, the analysis of phase properties and physical properties of impuritycontaining CO2 streams under various transport conditions was carried out.The comparison of the prediction results with the experimental results shows that the prediction accuracy was improved under certain conditions, which provides a certain theoretical basis for the analysis of pipeline transmission chain in the CCUS engineering practice.
Authors: Yubo Jiao, Hongyu Wu, Fanpeng Meng, Wenwei Zhang, Kunfeng Zhu, Jianfeng Liu, Jingyi Wang, Jie Chen, Wenyuan Sun
Language: English
Subfield: Physical and Theoretical Chemistry
Field: Chemistry
Domain: Physical Sciences
SDG: Climate action
Open Access status: green
OpenAlex ID: W4385397402