The diffusion coefficient of H2S in liquid sulfur |
| |
| Authors: | Yiming Ji Haipeng LiZhenghe Xu Zhongchao Tan |
| |
| Institution: | a Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta, Canada
b Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, Ontario, Canada |
| |
| Abstract: | The diffusion coefficient of H2S in liquid sulfur is a key kinetic parameter that has been missing in literature. In this paper, a pressure decay method was applied to measure the diffusion coefficients of H2S in liquid sulfur at 403 and 423 K. This pressure decay process was then modeled by taking the simultaneous diffusion and reversible chemical reactions between H2S and liquid sulfur into consideration. The diffusion coefficients and reaction rate constants were numerically determined by fitting theoretical curves to experimental data using Finite Element Method and Genetic Algorithm. The solubility of H2S in liquid sulfur at 403 and 423 K was also calculated and the results agreed with the semi-empirical correlation lately reported in literature. This study further extended the validity of the correlation to higher partial H2S pressure conditions. |
| |
| Keywords: | Hydrogen sulfide Liquid sulfur Diffusion coefficient Pressure decay method |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
