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Design, Optimization And Control Of An Alternative Process Based On Extractive Distillation For The Sweetening Of Natural Gas, Carlos E. Torres-Ortega, Juan Gabriel Segovia-Hernandez, Fernado I. Gomez-Castro, Salvador Hernandez, Adrian Bonilla-Petriciolet, Ben-Guang Rong, Massimiliano Errico
Design, Optimization And Control Of An Alternative Process Based On Extractive Distillation For The Sweetening Of Natural Gas, Carlos E. Torres-Ortega, Juan Gabriel Segovia-Hernandez, Fernado I. Gomez-Castro, Salvador Hernandez, Adrian Bonilla-Petriciolet, Ben-Guang Rong, Massimiliano Errico
Adrian Bonilla-Petriciolet
Alternative configurations based on cryogenic extractive distillation for the natural gas sweetening process were proposed and simulated by using Aspen Plus One 7.0 coupled to a multi-objective stochastic optimization procedure (Differential Evolution, DE). The evaluation of the performances of the proposed configurations was focused on the carbon dioxide-ethane azeotrope separation considering different liquefied hydrocarbon fractions as entrainers. The design alternatives were compared to the conventional chemical absorption system. The proposed sequences were simultaneously optimized by minimizing the Total Annual Cost (TAC) and maximizing the acid gas removal. Complementary studies regarding the theoretical control properties, thermodynamic efficiency and greenhouse gases generation …