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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 45443 (06)
- University: Sharif University of Technology
- Department: Chemical & Petroleum Engineering
- Advisor(s): Ghotbi, Cyrus; Taghikhani, Vahid; Jalili, Amir Hossein
- Abstract:
- Removal of some hazardous and toxic components of natural gas is of a great importance in industries. Thus solubility measurement of these components in appropriate solvents is a necessary task. Methylmercaptan due to its high toxicity as one of these components is separated by means of Alkanolamines. In this project a physical solubility experimental setup for absorption Methylmercaptan (CH3SH) in 48wt%, 35wt% and 25wt% MDEA aqueous solutions at 50°C and in pressures between (0.7 to 3)bar was designed and developed. The suggested setup can be used for measurement of solubility of gases (physical and chemical) in different solutions. The performance basis of the system is on precise sampling of liquid phase without making any disturbances to the thermodynamic equilibrium. The solubility of gases that only absorb physically is calculated by desorption of gas from liquid phase and for gases that have both physical and chemical absorption in the same time, solubility is measured by chemical analysis of sampled liquid phase.
Precision and validation of the measurement system was tested by repeating the experiment and comparing the results with reported experimental results in literature. To check the accuracy of solubility measurement, the measured solubility of Methylmercaptan in water at 50°C was compared with those reported by Kilner. The system developed in this project was never reported in scientific references. Then solubility of Methylmercaptan in amine solution was measured and modeled by Setchenov model with acceptable error - Keywords:
- Alkanol Amine ; Methyl Mercaptan
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