A STUDY OF PHASE EQUILIBRIUM OF H2S IN SEVERAL PHYSICAL SOLVENTS USING CHEMCAD SIMULATOR
<p> CHEMCAD process simulator was used for the analysis of the literature experimental phase equilibrium data of H<sub>2</sub>S with three physical solvents (Sulfolane, Propylene Carbonate (PC), and N-Methyl-2-Pyrrolidone (NMP)) at different temperatures ( 298.15 <sup>o</s...
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| Format: | Article |
| Language: | English |
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Tikrit University
2013-05-01
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| Series: | Tikrit Journal of Engineering Sciences |
| Subjects: | |
| Online Access: | http://www.tj-es.com/ojs/index.php/tjes/article/view/266 |
| Summary: | <p> CHEMCAD process simulator was used for the analysis of the literature experimental phase equilibrium data of H<sub>2</sub>S with three physical solvents (Sulfolane, Propylene Carbonate (PC), and N-Methyl-2-Pyrrolidone (NMP)) at different temperatures ( 298.15 <sup>o</sup>K , 323.15 <sup>o</sup>K, and 373.15 <sup>o</sup>K). Two thermodynamic models, Peng-Robinson (PR) and Soave-Redlich-Kwong (SRK), were used.</p><p>The equilibrium data of H<sub>2</sub>S- Sulfolane and H<sub>2</sub>S- Propylene Carbonate (PC) systems were successfully correlated using SRK thermodynamic model. The deviation was noticed only for H<sub>2</sub>S-Sulfolane system as the temperature increases to 373 <sup>o</sup>K, to give a deviation of less than 5% .</p><p>The thermodynamic models used in present study, PR, and SRK , built in CHEMCAD simulator and used as such without modification, fail to correlate the equilibrium data of H<sub>2</sub>S- NMP (N-Methyl-2-Pyrrolidone) system for all temperature range used.</p><p> Modifications of the thermodynamic models were performed by editing user defined binary interaction parameters (BIP) of the systems used, gives good results.</p><p><strong> </strong></p> |
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| ISSN: | 1813-162X 2312-7589 |