Journal
JOURNAL OF CHEMICAL AND ENGINEERING DATA
Volume 57, Issue 3, Pages 882-889Publisher
AMER CHEMICAL SOC
DOI: 10.1021/je201114g
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Funding
- National Basic Research Program of China (973 program) [2011CB707305]
- National Key Technologies RD Program [2012BAC24B00]
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To investigate the effect of alkane molecular structure on the volume expansion of CO2 + alkane systems, the solubility of CO2 in hexane, octane, decane, and cyclohexane and the volume of CO2 + alkanes at different temperature and pressure was measured with a PVT apparatus. The results imply that the dispersion state of CO2 molecules in the alkane phase under near critical or supercritical condition of CO2 plays a dominate role in increasing the volume of CO2 + alkane systems. The solubility of CO2 in the alkanes, the volume expansion of the CO2 + alkane systems, and the London force operating within alkane molecules are strongly influenced by molecular structure of the alkanes and pressure.
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