This study estimates the parameters for the proper operation of each one of the process stages (compression, cooling, and separation) in an existing gas processing plant, which processes 1.5 million standard cubic feet per day (MMSCFD). The study also proposes changes in some existing operational equipment to maximize the production of naphtha, which translates into an improved efficiency in each analyzed stage and an improved production rate of fuel gas, liquefied petroleum gas (LPG) and naphtha, which are current products of the plant. First, the gas plant was simulated using the Aspen HYSYS® V7.3 software with the current operational plant conditions and the measured properties of the fluids (gas chromatography for input gas, fuel gas, and LPG). Subsequently, unidimensional searches were performed via sensitivity analyses of the key stages of the process to obtain suitable parameters for improving naphtha production. This resulted in a maximum naphtha recovery rate of 99.13% (which is an improvement over the current recovery rate of 82.79%) and an increase in naphtha quality of 20.85%. The study allowed to have a sensibility analysis for nafta recovery, which provides a tool for decision-making and establishes a basis for analyzing other plants
naphtha, simulation, Aspen HYSYS, Sensitivity analysisnafta, simulación, Aspen HYSYS, análisis de sensibilidad
 K. Keyvanloo, J. Towfighi, S. M. Sadrameli, and A. Mohamadalizadeh, “Investigating the effect of key factors, their interactions and optimization of naphtha steam cracking by statistical design of experiments.” J. Anal. Appl. Pyrol., vol. 87, pp. 224-230, 2010.
 W. Hou, H. Su, Y. Hu, and J. Chu, “Modeling, simulation and optimization of a whole industrial catalytic naphtha reforming process on Aspen Plus platform.” Chinese J. Chem. Eng., vol. 14, pp. 584-591, 2006.
 M. R. Rahimpour, D. Iranshahi, E. Pourazadi, and A. M. Bahampour, “Boosting the gasoline octane number in thermally coupled naphtha reforming heat exchanger reactor using de optimization technique.” Fuel, vol. 97, pp. 109-118, 2012.
 F. S. Manning, and R. E. Thomson, Oilfield Processing, vol. 1 Natural Gas. Tulsa, Oklahoma: Pennwell Publishing Company, 1991.
 M. Mehrpooya, A Vatani, and S. M. Ali Mousavian, “Introducing a novel integrated NGL recovery process configuration (with a self-refrigeration system [open–closed cycle]) with minimum energy requirement.” Chem. Eng. Process. Process Intensif., vol. 49, pp. 376-388, 2010.
 B. Ghorbani, G. R. Salehi, H. Ghaemmaleki, M. Amidpour, and M. H. Hamedi, “Simulation and optimization of refrigeration cycle in NGL recovery plants with exergy-pinch analysis.” J. Natural Gas Sci. Eng., vol. 7, pp. 35-43, 2012.
 A. Vatani, M. Mehrpooya, and B. Tirandazi, “A novel process configuration for coproduction of NGL and LNG with low energy requirement.” Chem. Eng. Process. Process Intensif., vol. 63, pp. 16-24, 2013.
 M. Getu, S. Mahadzir, N. V. D. Long, and M. Lee, “Techno-economic analysis of potential natural gas liquid (NGL) recovery processes under variations of feed compositions.” Chem. Eng. Res. Des., vol. 91, pp. 1272-1283, 2013.
 S. A. Al-Sobhi and A. Elkamel, “Simulation and optimization of natural gas processing and production network consisting of LNG, GTL, and methanol facilities.” J. Natural Gas Sci. Eng., vol 23, pp. 500-508, 2015.
 M. R. Rahimpour, A. N. Rouzbahani, M. Bahmani, J. Shariat, and T. Tohidian, “Simulation, optimization, and sensitivity analysis of a natural gas dehydration unit.” J. Natural Gas Sci. Eng., vol 21, pp. 159-169, 2014.
 V. R. Ferro, J. Paloram, J. De Riva, D. Moreno, and I. Diaz, “Aspen Plus supported conceptual design of the aromatic–aliphatic separation from low aromatic content naphtha using 4-methyl-N-butylpyridinium tetrafluoroborate ionic liquid.” Fuel Process. Technol., vol 146, pp. 29-38, 2016.
 S. Mokhatab and W. A. Poe. “Chapter 10 - natural gas liquids recovery,” in Handbook of Natural Gas Transmission and Processing, S. Mokhatab and W. A. Poe., Eds. 2nd ed. Boston: Gulf Professional Publishing, 2012, pp. 353-391.