Simulation and Performance Improvement of Mercaptan Removal Unit of South Pars Gas Company by designing a new process cycle

Document Type : Research paper

Authors

1 Master Graduate, Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, Iran

2 Center for Process Integration and Control (CPIC), Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, Iran.

3 Department of Chemical Engineering, Shahid Nikbakht Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

Abstract

The purpose of the study is to present a new process cycle based on a pre-pressure stage to improve the performance of the mercaptan removal process from the natural gas in South Pars Gas Company. The separation process was simulated based on Pressure-temperature swing adsorption (PTSA) method using Aspen Adsorption software. Results showed that consumption power of compressor has been decressed by 36.83% using improved cycle. Moreover, the amount of separation capacity of mercaptans has been gained by increasing the inlet feed flow rate and the second heating stage temperature in both cycles. The maximum separation capacity was obtained by 7.7% at the feed flow rate of 2.3 kmol/hr and by 7.9% at the temperature of 298°C. The results demonstrated that the effect of temperature on separation capacity is greater than the inlet feed flow rate.
The maximum separation capacity was obtained by 7.7% at the feed flow rate of 2.3 kmol/hr and by 7.9% at the temperature of 298°C. The results demonstrated that the effect of temperature on separation capacity is greater than the inlet feed flow rate.

Keywords

Journal of Separation Science and Engineering
Volume 13, Issue 1
September 2021
Pages 17-36

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