Optimization of triethylene glycol dehydration of natural gas

Dehydration using triethylene glycol (TEG) is widely used in natural gas processing to avoid corrosion and plugging of the flow lines. Optimization using Aspen HYSYS simulator and optimizer tool was performed to minimize the processing cost considering different sets of parameters: TEG circulation r...

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Bibliographic Details
Published in:Energy reports 2019-11, Vol.5, p.723-732
Main Authors: Chebbi, Rachid, Qasim, Muhammad, Jabbar, Nabil Abdel
Format: Article
Language:English
Subjects:
Natural gas
Parametric study
Process optimization
Processing cost
Stripping gas
Triethylene glycol dehydration
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Summary:Dehydration using triethylene glycol (TEG) is widely used in natural gas processing to avoid corrosion and plugging of the flow lines. Optimization using Aspen HYSYS simulator and optimizer tool was performed to minimize the processing cost considering different sets of parameters: TEG circulation rate, numbers of theoretical trays (in the absorber and the stripping gas column), feed gas pressure and temperature, gas flow rate, gas price level and stripping gas rate. In addition to typical dew point depression simulation results reported in other publications, the present investigation also provides the minimum processing cost including both utilities and capital cost. The results based on the parametric optimization study yield criteria for design and optimum operating conditions for the dehydration process.
ISSN:2352-4847
2352-4847
DOI:10.1016/j.egyr.2019.06.014