Reference Correlation for the Viscosity Surface of Hydrogen Sulfide

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• 作者：Sergio E. Qui帽ones-Cisneros ; Kurt A. G. Schmidt ; Binod R. Giri ; Pierre Blais ; Robert A. Marriott
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2012
• 出版时间：November 8, 2012
• 年：2012
• 卷：57
• 期：11
• 页码：3014-3018
• 全文大小：271K
• 年卷期：v.57,no.11(November 8, 2012)
• ISSN：1520-5134

文摘

Until recently, there was a substantial lack of reliable viscosity data for H₂S, making the regression of an accurate H₂S viscosity model significantly difficult. To derive a model for engineering applications (2008 H₂S model), a corresponding states approach that related molecules of similar shape to H₂S was applied to cover regions where no experimental data was available. Recently, new primary low-density experimental data and derived theoretical information have been published. Additionally, new high-pressure H₂S viscosity measurements [at (373.15 and 423.15) K and up to 100 MPa] have also been reported. Based on this, a new revised correlation for the viscosity of H₂S is presented in this work. The current correlation reproduces the primary H₂S viscosity data to within experimental uncertainty. The precision of the new correlation varies from reference quality (better than 卤 0.20 %) at low-densities to an estimated 卤 5 % at 100 MPa and temperatures between (373 and 423) K. Outside this range of temperature there are no data to validate the accuracy of the model at elevated pressures; therefore we have conservatively estimated an uncertainty of roughly 10 % in the low-temperature and high-density region (T < 323 K up to 100 MPa) and 5 % for the high-temperature region (T > 450 K up to 100 MPa).