Densities and Dew Points of Vapor Mixtures of Methane + Propane and Methane + Propane + Hexane Using a Dual-Sinker Densimeter
Densities and Dew Points of Vapor Mixtures of Methane + Propane and Methane + Propane + Hexane Using a Dual-Sinker Densimeter
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使用双沉降密度计测定甲烷丙烷和甲烷丙烷己烷的蒸气混合物的密度和露点
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Z. Shan
中科院分区：
文献类型：
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作者：
Eric F. May† and;Reid C. Miller;Z. Shan
商业密度/吸附系统已转换为双沉降密度计，用于在压缩气体区域和接近露点条件下对一些轻质烃混合物进行密度测量。使用氩气作为校准测量系统的参考流体。甲烷密度的实验不确定性估计为±(0.029% + 0.013 kg m-3)，包括氩参考数据中声称的不确定性。在（273 至 313）K 温度和 12 MPa 压力下测得的甲烷密度与文献中的甲烷状态方程的综合不确定性一致（声称不确定性为 0.03%）。对于临界温度低于 293 K 的选定甲烷 + 丙烷和甲烷 + 丙烷 + 己烷混合物，沿着相同范围内的等温线报告密度。由于成分的不确定性，这些混合物的估计实验不确定性略大于纯甲烷的实验不确定性。在这样的情况下进行了额外的等容实验...
A commercial density/sorption system has been converted to a dual-sinker densimeter and used to make density measurements for some light hydrocarbon mixtures in the compressed gas region and near dew-point conditions. Argon was used as a reference fluid for calibration of the measurement system. Experimental uncertainties in density for methane were estimated as ±(0.029% + 0.013 kg m-3), including claimed uncertainties in the argon reference data. Measured methane densities at temperatures of (273 to 313) K and pressures to 12 MPa agreed within combined uncertainties with a methane equation of state in the literature (claimed uncertainty of 0.03%). Densities are reported along isotherms in this same range for selected methane + propane and methane + propane + hexane mixtures with cricondentherms below 293 K. Estimated experimental uncertainties for these mixtures are slightly larger than those for pure methane, because of uncertainties in compositions. Additional isochoric experiments were performed on so...