Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 9 of 9
Full-Text Articles in Engineering
Synergic Adsorption In The Simultaneous Removal Of Acid Blue 25 And Heavy Metals From Water Using A Ca(Po3)2-Modified Carbon, Rigoberto Tovar-Gomez, Dulce Rivera-Ramirez, Virginia Hernandez-Montoya, Adrian Bonilla-Petriciolet, Carlos Duran-Valle, Miguel A. Montes-Moran
Synergic Adsorption In The Simultaneous Removal Of Acid Blue 25 And Heavy Metals From Water Using A Ca(Po3)2-Modified Carbon, Rigoberto Tovar-Gomez, Dulce Rivera-Ramirez, Virginia Hernandez-Montoya, Adrian Bonilla-Petriciolet, Carlos Duran-Valle, Miguel A. Montes-Moran
Adrian Bonilla-Petriciolet
We report the simultaneous adsorption of acid blue 25 dye (AB25) and heavy metals (Zn2+, Ni2+ and Cd2+) on a low-cost activated carbon, whose adsorption properties have been improved via a surface chemistry modification using a calcium solution extracted from egg shell wastes. Specifically, we have studied the removal performance of this adsorbent using the binary aqueous systems: AB25 - Cd2+, AB25 - Ni2+ and AB25 - Zn2+. Multi-component kinetic and equilibrium experiments have been performed and used to identify and characterize the synergic adsorption in the simultaneous removal of these pollutants. Our results show that the presence of AB25 …
Optimizing The Removal Of Fluoride From Water Using New Carbons Obtained By Modification Of Nut Shell With A Calcium Solution From Egg Shell, Virginia Hernandez-Montoya, Luis A. Ramirez-Montoya, Adrian Bonilla-Petriciolet, Miguel A. Montes-Moran
Optimizing The Removal Of Fluoride From Water Using New Carbons Obtained By Modification Of Nut Shell With A Calcium Solution From Egg Shell, Virginia Hernandez-Montoya, Luis A. Ramirez-Montoya, Adrian Bonilla-Petriciolet, Miguel A. Montes-Moran
Adrian Bonilla-Petriciolet
Carbons loaded with specific chemical moieties were prepared from pecan nut shells employing a natural modifier agent obtained from egg shell, which is rich in calcium, for the selective adsorption of fluoride from water. A L4 orthogonal array of the Taguchi method was used to optimize the synthesis conditions for obtaining these selective carbons. The samples obtained were characterized and the elemental composition, textural parameters and morphology were determined. Fluoride adsorption experiments were performed in synthetic and real groundwater samples. Results showed that carbons obtained from pecan nut shells modified with a calcium solution extracted from egg shells (CMPNS) were …
Global Gibbs Free Energy Minimization In Reactive Systems Via Harmony Search, Adrian Bonilla-Petriciolet, Ma. Del Rosario Moreno-Virgen, Juan Jose Soto-Bernal
Global Gibbs Free Energy Minimization In Reactive Systems Via Harmony Search, Adrian Bonilla-Petriciolet, Ma. Del Rosario Moreno-Virgen, Juan Jose Soto-Bernal
Adrian Bonilla-Petriciolet
Phase equilibrium calculations in systems subject to chemical reactions play a major role in the design of reactive separation schemes including chemical reaction engineering. Basically, these calculations involve the global minimization of Gibbs free energy constrained by the material balances and chemical equilibrium restrictions. However, Gibbs free energy function is non-convex, highly non-linear with many decision variables, and may have several local minimums including trivial and nonphysical solutions. In these conditions, conventional numerical methods are not suitable for solving reactive phase equilibrium problems. Recently, there has been a significant and increasing interest in the development of global strategies for reliably …
Analysis And Prediction Of Input Multiplicity For The Reactive Flash Separation Using Reaction-Invariant Composition Variables, Jose E. Jaime-Leal, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernandez, Salvador Hernandez, Hector Hernandez-Escoto
Analysis And Prediction Of Input Multiplicity For The Reactive Flash Separation Using Reaction-Invariant Composition Variables, Jose E. Jaime-Leal, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernandez, Salvador Hernandez, Hector Hernandez-Escoto
Adrian Bonilla-Petriciolet
In this study, we introduce a new approach for predicting and analyzing the input multiplicity in reactive flash separation processes. Specifically, we have identified necessary conditions to detect these multiple states in reactive flash separations using reaction-invariant composition variables. The presence of the input multiplicity is studied for the reactive systems of MTBE and TAME production to illustrate the capabilities of our methodology. For these reactive systems, we report the existence of multiple states for different operating conditions. In summary, our strategy can be applied with any reactive system and thermodynamic model, assuming that all reactions are reversible and in …
Competitive Sorption Of Pb, Cd And Ni From Binary Aqueous Solutions By Chicken Feathers, Hilda Elizabeth Reynel-Avila, Adrian Bonilla-Petriciolet, Guadalupe De La Rosa
Competitive Sorption Of Pb, Cd And Ni From Binary Aqueous Solutions By Chicken Feathers, Hilda Elizabeth Reynel-Avila, Adrian Bonilla-Petriciolet, Guadalupe De La Rosa
Adrian Bonilla-Petriciolet
In this paper, we report the competitive removal of Pb, Cd and Ni ions from binary metal solutions using chicken feathers. These heavy metals are very toxic for human being and are present in wastewaters of several industrial activities. Therefore, multi-component sorption studies are required to identify the capabilities and limitations of chicken feathers as low-cost sorbent for the simultaneous removal of these metal ions from wastewaters. To the best of our knowledge, sorption equilibrium studies involving chicken feathers and Pb, Cd and Ni in binary aqueous solutions have not been reported. Therefore, the binary sorption data for systems Pb …
Purification Of Bioethanol Using Extractive Batch Distillation: Simulation And Experimental Studies, Juan Angel Pacheco-Basulto, Diego Hernandez-Mcconville, Fabricio Omar Barroso-Muñoz, Salvardor Hernandez, Juan Gabriel Segovia-Hernandez, Agustin Jaime Castro-Montoya, Adrian Bonilla-Petriciolet
Purification Of Bioethanol Using Extractive Batch Distillation: Simulation And Experimental Studies, Juan Angel Pacheco-Basulto, Diego Hernandez-Mcconville, Fabricio Omar Barroso-Muñoz, Salvardor Hernandez, Juan Gabriel Segovia-Hernandez, Agustin Jaime Castro-Montoya, Adrian Bonilla-Petriciolet
Adrian Bonilla-Petriciolet
Among biofuels, bioethanol has increased in importance in many countries because it can be used directly or mixed with gasoline in combustion engines. The production of bioethanol in a fermentative process usually gives a dilute solution from which the bioethanol must be obtained in high concentration in order to be used as biofuel. The separation of an azeotropic mixture of ethanol and water using batch and semi-batch distillation was studied considering ethylene glycol and ionic liquids as entrainers. The simulation and experimental results indicate that the separation is favored using ethylene glycol in comparison to the use of ionic liquid; …
Evaluation Of Covariance Matrix Adaptation Evolution Strategy, Shuffled Complex Evolution And Firefly Algorithms For Phase Stability, Phase Equilibrium And Chemical Equilibrium Problems, Seif-Eddeen Fateen, Adrian Bonilla-Petriciolet, Gade Pandu Rangaiah
Evaluation Of Covariance Matrix Adaptation Evolution Strategy, Shuffled Complex Evolution And Firefly Algorithms For Phase Stability, Phase Equilibrium And Chemical Equilibrium Problems, Seif-Eddeen Fateen, Adrian Bonilla-Petriciolet, Gade Pandu Rangaiah
Adrian Bonilla-Petriciolet
Phase equilibrium calculations and phase stability analysis of reactive and non-reactive systems play a significant role in the simulation, design and optimization of reaction and separation processes in chemical engineering. These challenging problems, which are often multivariable and non-convex, require global optimization methods for solving them. Stochastic global optimization algorithms have shown promise in providing reliable and efficient solutions for these thermodynamic problems. In this study, we evaluate three alternative global optimization algorithms for phase and chemical equilibrium calculations, namely, Covariant Matrix Adaptation-Evolution Strategy (CMA-ES), Shuffled Complex Evolution (SCE) and Firefly Algorithm (FA). The performance of these three stochastic algorithms …
Desarrollo De Microfibras De Carbón De Baja Pureza Y Su Evaluación En La Eliminación De Metales Pesados Del Agua, Juan Carlos Tapia-Picazo, David Vásquez Chávez, Adrian Bonilla-Petriciolet, Antonio Champion Coria, Alberto Alvarez-Castillo, J. Gabriel Luna-Bárcenas
Desarrollo De Microfibras De Carbón De Baja Pureza Y Su Evaluación En La Eliminación De Metales Pesados Del Agua, Juan Carlos Tapia-Picazo, David Vásquez Chávez, Adrian Bonilla-Petriciolet, Antonio Champion Coria, Alberto Alvarez-Castillo, J. Gabriel Luna-Bárcenas
Adrian Bonilla-Petriciolet
En este trabajo se presenta el desarrollo de un proceso de fabricación de microfibras de carbón que permite el control de diferentes niveles de pureza y propiedades fisico-químicas de las mismas, para poder utilizarlas en aplicaciones especiales. El proceso de producción incluye las etapas de reacción, hilatura y carbonización. Se reportan los resultados de la evaluación y caracterización de las microfibras de carbón obtenidas en la remoción de metales pesados en agua.
On The Capabilities And Limitations Of Harmony Search For Parameter Estimation In Vapor-Liquid Equilibrium Modeling, Adrian Bonilla-Petriciolet
On The Capabilities And Limitations Of Harmony Search For Parameter Estimation In Vapor-Liquid Equilibrium Modeling, Adrian Bonilla-Petriciolet
Adrian Bonilla-Petriciolet
The modeling of vapor-liquid equilibrium data using local composition models is an interesting and challenging global optimization problem in the context of chemical engineering and applied thermodynamics. Until now, several deterministic and stochastic global optimization strategies have been used for modeling vapor-liquid equilibrium (VLE) data. Stochastic optimization methods may offer several advantages for solving global optimization problems and, until now, some meta-heuristics have been tested for modeling phase equilibrium data. However, these optimization strategies usually show a robust performance but, in some challenging problems, they may fail to locate the global optimum. In particular, Harmony Search (HS) is a direct-search …