Density characteristics of CO₂-CH₄ binary mixtures at temperatures from (300 to 308.15) K and pressures from (2 to 18) MPa

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• 作者：Shuyang Liu ; Yi Zhang ; ^{zhangyi80@dlut.edu.cn} ; Yuan Chi ; Yongchen Song ; ^{songyc@dlut.edu.cn} ; Mingjun Yang ; Yu Liu ; Pengfei Lv
• 关键词：Density ; Magnetic suspension balance ; Carbon dioxide ; Methane ; GERG-2008 EOS
• 刊名：The Journal of Chemical Thermodynamics
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：1-9
• 全文大小：965 K
• 卷排序：106

文摘

Accurate densities of CO2–CH4 were measured at 300–308.15 K and 2–18 MPa by MSB. Combined standard uncertainty of T, p  , and uM(ρ)uM(ρ) are 0.02 K, 0.001 MPa and 0.029 kg·m−3. The measured density agrees well with GERG-2008 as x < 0.60 with deviation within 2.0%. The max deviation with GERG-2008 appears as T–p close to critical point at high x.