CALCULATION OF CARBON DIOXIDE SOLUBILITY IN SATURATED LIQUID METHANE
To liquefy natural gas at temperature higher than that in the ordinary liquid natural gas (LNG) plants can reduce the energy consumption for liquefaction, and can simplify or even cancel the CO2 removal units before natural gas is cooled. Thus, it is important to evaluate the solubility of solid carbon dioxide in saturated liquid methane at different temperatures. The regular solution method and the equations-of-state (EOS) are used to calculate the solubility of solid carbon dioxide in saturated liquid methane in this paper. For the regular solution method, the regular solution theory and the modified Scatchard-Hildebrand equation are adopted on the basis of the ideal solution hypothesis, and an empirical equation is applied to amend the results near the critical temperature. For the EOS method, PR EOS and SRK EOS are selected for the solid-liquid phase equilibria calculation. The calculation results are compared with the experiment data from Davis，and it certifies that both the empirical equation and the EOS method can be recommended for this kind of solubility calculation.
carbon dioxide liquid methane solubility regular solution theory equation-of-state
Taotao Shen Wensheng Lin
Institute of Refrigeration and Cryogenics, Shanghai JiaoTong University Shanghai, China, 200240
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
523-530
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）