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Full-Text Articles in Engineering
Particle Swarm Optimization For Phase Stability And Equilibrium Calculations In Reactive Systems, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernández
Particle Swarm Optimization For Phase Stability And Equilibrium Calculations In Reactive Systems, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernández
Adrian Bonilla-Petriciolet
This study reports the application of Particle Swarm Optimization (PSO) for phase stability and equilibrium calculations in reactive systems. These thermodynamic problems are formulated using transformed composition variables and PSO is used as global optimization strategy. Our results indicate that Particle Swarm Optimization is an alternative and suitable stochastic method for solving these challenging calculations in reactive systems.
Design And Optimization Of Thermally Coupled Distillation Sequences For Purification Of Bioethanol, Carlo Edgar Torres-Ortega, Juan Gabriel Segovia-Hernández, Salvador Hernández, Héctor Hernández, Adrián Bonilla-Petriciolet, Rafael Maya-Yescas
Design And Optimization Of Thermally Coupled Distillation Sequences For Purification Of Bioethanol, Carlo Edgar Torres-Ortega, Juan Gabriel Segovia-Hernández, Salvador Hernández, Héctor Hernández, Adrián Bonilla-Petriciolet, Rafael Maya-Yescas
Adrian Bonilla-Petriciolet
An important problem in the bioethanol production process is the purification of ethanol from a dilute solution, i.e., approximately 10% ethanol in water. The key factor in the purification process is the formation of the ethanol-water binary homogeneous azeotrope, and an additional process is required to obtain high purity ethanol that can be used in motor vehicles. This study examines the design and optimization of three extractive distillation options (two with thermal coupling) for the purification of a representative mixture of ethanol and water. These extractive arrangements can produce ethanol as distillate with the required purity and energy savings, reduction …
Design And Optimization Of Thermally Coupled Extractive Distillation Sequences, Roberto Gutiérrez-Guerra, Juan Gabriel Segovia-Hernández, Salvador Hernández, Adrian Bonilla-Petriciolet, Héctor Hernández
Design And Optimization Of Thermally Coupled Extractive Distillation Sequences, Roberto Gutiérrez-Guerra, Juan Gabriel Segovia-Hernández, Salvador Hernández, Adrian Bonilla-Petriciolet, Héctor Hernández
Adrian Bonilla-Petriciolet
In this paper, design and optimization procedures are developed for a conventional extractive distillation sequence and a thermally coupled extractive distillation scheme. The proposed methodologies detect the optimal values of the design variables in order to guarantee the minimum energy consumption. It was found that the optimum energy consumption can be related to the minimum total annual operating cost, minimum greenhouse gas emissions, higher thermodynamic efficiencies and good theoretical control properties. The methodologies were applied to the study of the separation of several close boiling point mixtures using the two distillation sequences. The results showed that the energy savings predicted …
Calculation Of Homogeneous Azeotropes In Reactive And Nonreactive Mixtures Using A Stochastic Optimization Approach, Adrian Bonilla-Petriciolet, Gustavo A. Iglesias-Silva, Kenneth R. Hall
Calculation Of Homogeneous Azeotropes In Reactive And Nonreactive Mixtures Using A Stochastic Optimization Approach, Adrian Bonilla-Petriciolet, Gustavo A. Iglesias-Silva, Kenneth R. Hall
Adrian Bonilla-Petriciolet
In this paper we introduce an alternative strategy to find homogeneous azeotropes in reactive and nonreactive mixtures which is based upon the Simulated Annealing optimization technique. This stochastic optimizationmethod is used to robustly solve a systemof non-linear equations that results fromthe equalities of the orthogonal derivatives of the Gibbs energy and the Gibbs energy of mixing in the vapor and the liquid phases. For non-reactive systems, this equation system is solved by considering conventional composition variables while for reactive cases we use the transformed composition variables proposed by Ung and Doherty. Numerical performance of our approach is illustrated using several …