The Thermodynamic Behavior of the CO2‐H2O System from 400 to 1000 K, up to 100 Mpa and 30% Mole Fraction of CO2
The Thermodynamic Behavior of the CO2‐H2O System from 400 to 1000 K, up to 100 Mpa and 30% Mole Fraction of CO2
复制标题
CO2-H2O 体系在 400 至 1000 K、高达 100 Mpa 和 CO2 摩尔分数为 30% 的条件下的热力学行为
DOI：
10.1063/1.555938
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发表时间：
1993
影响因子：
4.3
通讯作者：
J. L. Sengers
中科院分区：
文献类型：
--
作者：
J. Gallagher;R. Crovetto;J. L. Sengers
本文提出了在水临界点附近的大范围温度（400-1000 K）和压力（0-100 MPa）范围内，含水二氧化碳混合物（高达30 mol%）的热力学性质的模型。混合物的亥姆霍兹自由能模型基于广义对应态原理，以NBS/NRC蒸汽表作为纯水的参考态。模型的输入是混合物的临界线数据、超临界水中的表观摩尔体积和pVTx数据、相边界、过量焓和混合物的二次维里系数数据。比较了这些数据，与亨利常数和其他可用于该系统的公式。在400 ~ 1000 K的19个温度范围内，在0.05 ~ 100 MPa的35条等压线上给出了四种组分（x=0.05、0.10、0.20和0.30）的相边界和摩尔体积、焓和逸出率的表值。在同样的压力下……
A model is presented for the thermodynamic properties of the aqueous mixture of carbon dioxide, up to 30 mol% composition, in a large range of temperatures (400–1000 K) and pressures (0–100 MPa) around the critical point of water. The model for the Helmholtz free energy of the mixture is based on the principle of generalized corresponding states, with the NBS/NRC Steam Tables as the reference state for pure water. Input to the model are data for the critical line of the mixture, apparent molar volume and pVTx data in supercritical water, phase boundaries, excess enthalpies and mixture second virial coefficient data. Comparisons are presented with those data, with Henry’s constants and with other formulations available for this system. Phase boundaries and tabulated values of molar volumes, enthalpies, and fugacities are presented along 35 isobars from 0.05 to 100 MPa, for four compositions, x=0.05, 0.10, 0.20, and 0.30, respectively, at 19 temperatures in the range of 400 to 1000 K. For the same pressures...