Dispersion Property of CO2 in Oil. Part 3: Aggregation of CO2 Molecule in Organic Liquid at Near Critical and Supercritical Condition of CO2 |
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| Authors: | Zihao Yang Bo Peng Meiqin Lin Zhaoxia Dong |
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| Institution: | 1. Enhanced Oil Recovery Research Institute, China University of Petroleum (Beijing) , Beijing , P. R. China;2. Enhanced Oil Recovery Research Institute, China University of Petroleum (Beijing) , Beijing , P. R. China;3. Key Laboratory of Enhanced Oil Recovery, CNPC, Changping , Beijing , P. R. China |
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| Abstract: | To study the dispersion property of CO2 in organic liquids, the solubility of CO2, the volume of CO2 + organic liquids under different pressure at 318.15 K were measured and the radial distribution function of CO2 molecule aggregate in the organic liquids was calculated by molecule dynamic simulation. The results show that the aggregate of CO2 molecules in the organic liquids is formed obviously; the aggregation and disperse property of CO2 molecule in the organic liquids is affected by the structure and polarity of the organic molecule at near critical and supercritical condition of CO2 dominantly. |
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| Keywords: | Aggregation carbon dioxide molecular dynamics simulation solubility volume expansion |
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