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Design Analysis Of Fixed-Bed Synergic Adsorption Of Heavy Metals And Acid Blue 25 On Activated Carbon, M.T. Hernandez-Eudave, Adrian Bonilla-Petriciolet, M.R. Moreno-Virgen, C.K. Rojas-Mayorga, R. Tovar-Gomez Jan 2016

Design Analysis Of Fixed-Bed Synergic Adsorption Of Heavy Metals And Acid Blue 25 On Activated Carbon, M.T. Hernandez-Eudave, Adrian Bonilla-Petriciolet, M.R. Moreno-Virgen, C.K. Rojas-Mayorga, R. Tovar-Gomez

Adrian Bonilla-Petriciolet

This study reports the multicomponent adsorption of dye AB25, nickel (Ni2+) and zinc (Zn2+) ions on an activated carbon using binary mixtures of metal and dye, and packed bed columns at different operating conditions. Design parameters of packed bed adsorption columns have been calculated using the breakthrough curves and Thomas model, and an analysis has been performed to determine the effect and magnitude of the synergistic adsorption on the design parameters and adsorbent performance. Results showed that there is a strong synergistic adsorption of heavy metals on activated carbon caused by the presence of dye AB25 in binary mixtures. The …


On The Importance Of Surface Chemistry And Composition Of Bone Char For The Sorption Of Heavy Metals From Aqueous Solution, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, Juan Jáuregui-Rincón Jan 2015

On The Importance Of Surface Chemistry And Composition Of Bone Char For The Sorption Of Heavy Metals From Aqueous Solution, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, Juan Jáuregui-Rincón

Adrian Bonilla-Petriciolet

This paper reports new insights on the role of the inorganic composition of bone char on its sorption properties for the removal of heavy metals Cd2+, Ni2+ and Zn2+ ions from aqueous solution. In particular, we showed the importance of both composition and surface chemistry of bone char on its sorption properties for the removal of these metal ions in aqueous solution. Results of physicochemical characterization and sorption studies suggest that the inorganic phase of bone char may contribute from 60 to 92% of the sorption process of heavy metals in aqueous solution. In particular, the ion exchange process of …


Removal Of Heavy Metals And Arsenic From Aqueous Solution Using Textile Wastes From Denim Industry, Didilia I. Mendoza-Castillo, Cintia Karina Rojas-Mayorga, Irving P. García-Martínez, María Ana Pérez-Cruz, Virginia Hernández-Montoya, Adrian Bonilla-Petriciolet, Miguel A. Montes-Moran Jan 2015

Removal Of Heavy Metals And Arsenic From Aqueous Solution Using Textile Wastes From Denim Industry, Didilia I. Mendoza-Castillo, Cintia Karina Rojas-Mayorga, Irving P. García-Martínez, María Ana Pérez-Cruz, Virginia Hernández-Montoya, Adrian Bonilla-Petriciolet, Miguel A. Montes-Moran

Adrian Bonilla-Petriciolet

In this study, the denim fiber scraps were reused as an alternative low-cost sorbent for the removal of heavy metals Pb2+, Cd2+, Zn2+ and arsenic from aqueous solutions. Results showed that this textile waste was an effective sorbent for the removal of these heavy metal ions and offered a better removal performance than those reported for other synthetic and natural sorbents such as activated carbons and zeolites. On the other hand, raw and metal-loaded denim wastes were also useful for the removal of arsenic (V) from aqueous solutions and their sorption capacities were higher than 1.5 mg/g. In particular, the …


Analysis And Modeling Of Multicomponent Sorption Of Heavy Metals On Chicken Feathers Using Taguchi’S Experimental Designs And Artificial Neural Networks, Hilda Elizabeth Reynel-Avila, Adrian Bonilla-Petriciolet, Guadalupe De La Rosa Jan 2015

Analysis And Modeling Of Multicomponent Sorption Of Heavy Metals On Chicken Feathers Using Taguchi’S Experimental Designs And Artificial Neural Networks, Hilda Elizabeth Reynel-Avila, Adrian Bonilla-Petriciolet, Guadalupe De La Rosa

Adrian Bonilla-Petriciolet

In this study, we have used an integrated approach based on Taguchi’s experimental designs and artificial neural networks (ANNs) for the analysis and modeling of the simultaneous removal of cadmium (Cd2+), nickel (Ni2+) and lead (Pb2+) ions from ternary aqueous solutions using chicken feathers. Our results indicated that the multicomponent sorption of these heavy metals on chicken feathers is a complex antagonistic process. Specifically, chicken feathers showed a strong preference for the removal of Pb2+ ions in multicomponent solutions and the presence of these ions affected significantly the multicomponent removal of Cd2+ and Ni2+. This antagonistic sorption effect is more …


Chemical Modification Of Byrsonima Crassifolia With Citric Acid For The Competitive Sorption Of Heavy Metals From Water, Jacqueline Monroy-Figueroa, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, María Ana Pérez-Cruz Jan 2015

Chemical Modification Of Byrsonima Crassifolia With Citric Acid For The Competitive Sorption Of Heavy Metals From Water, Jacqueline Monroy-Figueroa, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, María Ana Pérez-Cruz

Adrian Bonilla-Petriciolet

This study reports the chemical modification of the Byrsonima Crassifolia biomass with citric acid to improve its sorption properties for the removal of cadmium and nickel ions from aqueous solutions under competitive sorption conditions (i.e., multicomponent solutions). The best operating conditions of the chemical modification process were identified using the signal-to-noise ratio to enhance the metal uptakes and to reduce the competitive sorption effects during the simultaneous removal of these metals using the modified biomass. Results indicated that both the sorption capacity and selectivity for heavy metal removal can be improved in multicomponent metal solutions. This improvement in sorption properties …


Neural Newtork Modeling Of Heavy Metal Sorption On Lignocellulosic Biomasses: Effect Of Metallic Ion Properties And Sorbent Characteristics, Didilia I. Mendoza-Castillo, Nellie Villalobos-Ortega, Adrian Bonilla-Petriciolet, Juan Carlos Tapia-Picazo Jan 2015

Neural Newtork Modeling Of Heavy Metal Sorption On Lignocellulosic Biomasses: Effect Of Metallic Ion Properties And Sorbent Characteristics, Didilia I. Mendoza-Castillo, Nellie Villalobos-Ortega, Adrian Bonilla-Petriciolet, Juan Carlos Tapia-Picazo

Adrian Bonilla-Petriciolet

This study reports the application of a neural network approach for modeling and analyzing the sorption performance of different lignocellulosic wastes, namely jacaranda fruit, plum kernels and nutshell, for the removal of heavy metal ions (Pb2+, Cd2+, Ni2+ and Zn2+) from aqueous solutions. This ANNs model was used to determine the relevance and importance of both sorbent and pollutant characteristics on the metal sorption kinetics and isotherms. Results of this study highlighted the role of acidic functional groups, lignin composition of tested biomasses, and the pollutant molecular weight in the sorption of heavy metals. The nutshell biomass showed the best …


Makha – A New Hybrid Swarm Intelligence Global Optimization Algorithm, Ahmed M.E. Khalil, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet Jan 2015

Makha – A New Hybrid Swarm Intelligence Global Optimization Algorithm, Ahmed M.E. Khalil, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

The search for efficient and reliable bio-inspired optimization methods continues to be an active topic of research due to the wide application of the developed methods. In this study, we developed a reliable and efficient optimization method via the hybridization of two bio-inspired swarm intelligence optimization algorithms, namely, the Monkey Algorithm (MA) and the Krill Herd Algorithm (KHA). The hybridization made use of the efficient steps in each of the two original algorithms and provided a better balance between the exploration/diversification steps and the exploitation/intensification steps. The new hybrid algorithm, MAKHA, was rigorously tested with 27 benchmark problems and its …


Reactive Distillation: A Review Of Optimal Design Using Deterministic And Stochastic Techniques, Juan Gabriel Segovia-Hernández, Salvador Hernández, Adrian Bonilla-Petriciolet Jan 2015

Reactive Distillation: A Review Of Optimal Design Using Deterministic And Stochastic Techniques, Juan Gabriel Segovia-Hernández, Salvador Hernández, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

In the last years, the industries have shown interest in the development of reactive separation processes. Reactive distillation can be considered as reaction and distillation combined into one new unit operation and this integrated separation process is a good example of process intensification. This intensified process offers several important advantages that include the increment of the reaction yield and selectivity, the overcoming of thermodynamic restrictions and the considerable reduction in energy, water and solvent consumptions. Therefore, this process configuration has been applied in several chemical industries. However, due to the strong interactions of chemical reactions and heat and mass transfer, …


Physico-Chemical Characterization Of Metal-Doped Bone Chars And Their Adsorption Behavior For Water Defluoridation, Cintia Karina Rojas-Mayorga, Adrian Bonilla-Petriciolet, Joaquín Silvestre-Albero, Ismael A. Aguayo-Villarreal, Didilia I. Mendoza-Castillo Jan 2015

Physico-Chemical Characterization Of Metal-Doped Bone Chars And Their Adsorption Behavior For Water Defluoridation, Cintia Karina Rojas-Mayorga, Adrian Bonilla-Petriciolet, Joaquín Silvestre-Albero, Ismael A. Aguayo-Villarreal, Didilia I. Mendoza-Castillo

Adrian Bonilla-Petriciolet

New bone chars for fluoride adsorption from drinking water have been synthetized via a metal doping using aluminum and iron salts. A detailed statistical analysis of the metal doping process using the signal-to-noise ratios from Taguchi’s experimental designs and its impact on the fluoride adsorption properties of modified bone chars have been performed. The best conditions, including the proper metallic salt, for metal doping were identified to improve the fluoride uptakes of modified bone chars. Results showed that the fluoride adsorption properties of bone chars can be enhanced up to 600% using aluminum sulfatefor the surface modification. This aluminum-based adsorbent …


Citas Producción Científica, Adrian Bonilla-Petriciolet Jan 2015

Citas Producción Científica, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

No abstract provided.


Polyester Fiber Production Using Virgin And Recycled Pet, J.C. Tapia-Picazo, J.G. Luna-Bárcenas, A. Garcia-Chavez, R. Gonzalez-Nuñez, A. Bonilla-Petriciolet, A. Alvarez-Castillo Jan 2014

Polyester Fiber Production Using Virgin And Recycled Pet, J.C. Tapia-Picazo, J.G. Luna-Bárcenas, A. Garcia-Chavez, R. Gonzalez-Nuñez, A. Bonilla-Petriciolet, A. Alvarez-Castillo

Adrian Bonilla-Petriciolet

In this study, the design and construction of an extrusion equipment with spinning fiber devices has been developed to produce polyester fiber from virgin and recycled polyethylene terephthalate (PET). Several operating parameters (i.e., pressure, temperature, feed flow rate, extrusion speed and extruder design) have been analyzed to identify the best process conditions. In particular, this study has focused on a detailed analysis for the processing of recycled raw material for polyester textile fiber applications considering the variability of the process and identifying alternatives to minimize the impact on the quality parameters such as the fiber diameter and mechanical specifications. The …


Desarrollo De Un Algoritmo De Optimización Global De Colonias De Hormigas Con Selección De Región Factible Para Espacios Continuos, Jorge A. Fernandez-Vargas, Adrian Bonilla-Petriciolet Jan 2014

Desarrollo De Un Algoritmo De Optimización Global De Colonias De Hormigas Con Selección De Región Factible Para Espacios Continuos, Jorge A. Fernandez-Vargas, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

This study introduces a new algorithm for the ant colony optimization (ACO) method, which has been proposed to solve global optimization problems with continuous decision variables. This algorithm, namely ACO-FRS, involves a strategy for the selection of feasible regions during optimization search and it performs the exploration of the search space using a similar approach to that used by the ants during the search of food. Four variants of this algorithm have been tested in several benchmark problems and the results of this study have been compared with those reported in literature for other ACO-type methods for continuous spaces. Overall, …


Effect Of Using Adjusted Parameters, Local And Global Optimums, For Phase Equilibrium Prediction On The Synthesis Of Azeotropic Distillation Columns, Claudia Gutierrez-Antonio, Andrea Ojeda-Gasca, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernández, Abel Briones-Ramírez Jan 2014

Effect Of Using Adjusted Parameters, Local And Global Optimums, For Phase Equilibrium Prediction On The Synthesis Of Azeotropic Distillation Columns, Claudia Gutierrez-Antonio, Andrea Ojeda-Gasca, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernández, Abel Briones-Ramírez

Adrian Bonilla-Petriciolet

We analyze the effect of using adjusted parameters, corresponding to local and global optimums, in the NRTL thermodynamic model on the complete process synthesis (design, optimization and control) of homogeneous azeotropic distillation columns. The adjusted parameters that corresponding to a global optimum were obtained with simulated annealing technique, while the adjusted parameters that corresponding to a local optimum were taken from Dechema Collection. Both sets of parameters were used to design a conventional sequence, a side-stream column and a Petlyuk sequence. These designs were used as initial solution to a multiobjective genetic algorithm with constraints handling, coupled to a processes …


Performance Of A Modified Extruder For Polyester Fiber Production Using Recycled Pet, J.C. Tapia-Picazo, A. Garcia-Chavez, R. González-Nuñez, A. Bonilla-Petriciolet, G. Luna-Barcenas, A. Champión-Coria, A. Alvarez-Castillo Jan 2014

Performance Of A Modified Extruder For Polyester Fiber Production Using Recycled Pet, J.C. Tapia-Picazo, A. Garcia-Chavez, R. González-Nuñez, A. Bonilla-Petriciolet, G. Luna-Barcenas, A. Champión-Coria, A. Alvarez-Castillo

Adrian Bonilla-Petriciolet

In this study, we report the design and results of the operation of a modified extrusion equipment with spinning fiber devices. The performance of the equipment has been evaluated by producing polyester fibers from different recycled poly(ethylene terephthalate) (PET]) of pharma- and bottlegrade. Flow performance along the extruder length was modeled and the pressure was calculated at standard conditions and considering a flow change of +10% in these standard conditions. The variation of drop pressure inside the extruder was modeled as a function of the Inherent Viscosity (VI) and humidity content (X). In addition, Losses of VI were calculated in …


On The Effectiveness Of Nature-Inspired Metaheuristic Algorithms For Performing Phase Equilibrium Thermodynamic Calculations, Seif E.K. Fateen, Adrian Bonilla-Petriciolet Jan 2014

On The Effectiveness Of Nature-Inspired Metaheuristic Algorithms For Performing Phase Equilibrium Thermodynamic Calculations, Seif E.K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

The search for reliable and efficient global optimization algorithms for solving phase stability and phase equilibrium problems in applied thermodynamics is an ongoing area of research. In this study, we evaluate and compare the reliability and efficiency of eight selected nature-inspired metaheuristic algorithms for solving difficult phase stability and phase equilibrium problems. These algorithms are the Cuckoo Search (CS), Intelligent Firefly (IFA), Bat (BA), Artificial Bee Colony (ABC), Monkey and Krill Herd Hybrid (MAKHA), Covariance Matrix Adaptation Evolution Strategy (CMAES), Magnetic Charged System Search (MCSS) and Bare Bones Particle Swarm Optimization (BBPSO). The results clearly show that CS is the …


A Note On Effective Phase Stability Calculations Using A Gradient-Based Cuckoo Search Algorithm, Seif E.K. Fateen, Adrian Bonilla-Petriciolet Jan 2014

A Note On Effective Phase Stability Calculations Using A Gradient-Based Cuckoo Search Algorithm, Seif E.K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

Stochastic global optimization methods have been successfully used to perform phase stability calculations. However, these methods may show some drawbacks in challenging phase stability problems. In this study, we made use of the gradient of the tangent plane distance function to improve the performance of Cuckoo Search (CS) algorithm, which is a promising nature-inspired stochastic global optimization method, for the calculation of phase stability analysis. The new modified algorithm, Gradient-Based Cuckoo Search (GBCS), was evaluated for solving several challenging phase stability problems. Its performance at different numerical effort levels and the effect of stopping criterion have been analyzed. GBCS was …


Multiobjective Optimization Of A Hydrodesulfurization Process Of Diesel Using Distillation With Side Reactor, Erick Miranda-Galindo, Juan Gabriel Segovia-Hernandez, Salvador Hernandez, Adrian Bonilla-Petriciolet Jan 2014

Multiobjective Optimization Of A Hydrodesulfurization Process Of Diesel Using Distillation With Side Reactor, Erick Miranda-Galindo, Juan Gabriel Segovia-Hernandez, Salvador Hernandez, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

The distillation with side reactor has been proposed to remove sulfur compounds of diesel. The design and optimization of a hydrodesulfurization process involve the selection of the configuration and the operating conditions to minimize the total annual cost, CO2 emissions and the amount of sulfur compounds. In general, the optimal design of hydrodesulfurization process is a non-linear and multivariable multiobjective optimization problem, with the presence of both continuous and discrete design variables. In particular, stochastic multi-objective optimization algorithms are capable of solving, robustly and efficiently, challenging optimization problems, and they appear to be a suitable alternative for the design and …


Use Of Spectroscopy Analysis And Computational Chemistry For Rice Husk And Gluten Husk Applications, Norma A. Rangel-Vazquez, Virginia Hernandez-Montoya, Adrian Bonilla-Petriciolet Jan 2014

Use Of Spectroscopy Analysis And Computational Chemistry For Rice Husk And Gluten Husk Applications, Norma A. Rangel-Vazquez, Virginia Hernandez-Montoya, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

Computational chemistry is a branch of chemistry that uses principles of computer science to assist in solving chemical problems. It uses the results of theoretical chemistry, incorporated into efficient computer programs, to calculate the structures and properties of molecules and solids. The lignocellulosic materials are mainly made up of a complex network of three polymers: cellulose, hemicellulose, and lignin. Due to their hydrophilicity, biodegradability, biocompatibility and low toxicity, hemicelluloses have been studied by numerous research groups with respect to their use as composites in biomedical applications. In this research, rice husk and gluten husk were analyzed. Rice husk (RH) is …


Gradient-Based Cuckoo Search For Global Optimization, Seif E.K. Fateen, Adrian Bonilla-Petriciolet Jan 2014

Gradient-Based Cuckoo Search For Global Optimization, Seif E.K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

One of the major advantages of stochastic global optimization methods is the lack of the need of the gradient of the objective function. However, in some cases, this gradient is readily available and can be used to improve the numerical performance of stochastic optimization methods specially the quality and precision of global optimal solution. In this study, we proposed a gradient-based modification to the Cuckoo Search algorithm, which is a nature-inspired swarm-based stochastic global optimization method. We introduced the Gradient-Based Cuckoo Search (GBCS) and evaluated its performance versus the original algorithm in solving twenty-four benchmark functions. The use of GBCS …


Simulated Annealing Applications In Thermodynamic Calculations, Ahmed O. Elnabawy, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet Jan 2014

Simulated Annealing Applications In Thermodynamic Calculations, Ahmed O. Elnabawy, Seif-Eddeen K. Fateen, Adrian Bonilla-Petriciolet

Adrian Bonilla-Petriciolet

Applied thermodynamic calculations are relevant for process design. These thermodynamic calculations include: phase equilibrium calculations, chemical equilibrium calculations, simultaneous phase and chemical equilibrium calculations, phase stability analysis, calculation of critical points, calculation of azeotropes, and parameter estimation of thermodynamic models, among others. These thermodynamic calculations can be solved as global optimization problems. In particular, Simulated Annealing has showed a promising performance in solving these thermodynamic problems. This manuscript overviews the application of SA and its variants, including hybrid method, in applied thermodynamic calculations for process design.


Synthesis And Adsorption Properties Of Activated Carbons From Biomass Of Prunus Domestica And Jacaranda Mimosifolia For The Removal Of Heavy Metals And Dyes From Water, H. Treviño-Cordero, L.G. Juárez-Aguilar, D.I. Mendoza-Castillo, V. Hernandez-Montoya, A. Bonilla-Petriciolet, M.A. Montes-Moran Jan 2013

Synthesis And Adsorption Properties Of Activated Carbons From Biomass Of Prunus Domestica And Jacaranda Mimosifolia For The Removal Of Heavy Metals And Dyes From Water, H. Treviño-Cordero, L.G. Juárez-Aguilar, D.I. Mendoza-Castillo, V. Hernandez-Montoya, A. Bonilla-Petriciolet, M.A. Montes-Moran

Adrian Bonilla-Petriciolet

Activated carbon is the most widely used adsorbent for wastewater treatment and water pollution control. Lignocellulosic precursors obtained from crops and fruits offer several advantages for synthesizing activated carbons due to its wide availability and their interesting physicochemical properties. In particular, biomass of plum kernel and jacaranda are alternative lignocellulosic precursors for activated carbon preparation. This study reports the application of Prunus domestica and Jacaranda mimosifolia biomass for the synthesis of activated carbons to remove commercial dyes (i.e., AB25 and methylene blue) and Pb2+ ions from aqueous solutions. Two different methodologies for the preparation of activated carbons were analyzed, namely, …


Role Of Acid Blue 25 Dye As Active Site For The Adsorption Of Cd2+ And Zn2+ Using Activated Carbons, Ismael Alejandro Aguayo-Villarreal, Virginia Hernandez-Montoya, Adrian Bonilla-Petriciolet, Rigoberto Tovar-Gomez, Elsa M. Ramirez-Lopez, Miguel A. Montes-Moran Jan 2013

Role Of Acid Blue 25 Dye As Active Site For The Adsorption Of Cd2+ And Zn2+ Using Activated Carbons, Ismael Alejandro Aguayo-Villarreal, Virginia Hernandez-Montoya, Adrian Bonilla-Petriciolet, Rigoberto Tovar-Gomez, Elsa M. Ramirez-Lopez, Miguel A. Montes-Moran

Adrian Bonilla-Petriciolet

The adsorption of acid blue 25, Cd2+ and Zn2+ on a physically activated bituminous carbon and a phosphoric activated carbon from wood was studied using single and binary (dye/metal) solutions, at 30 °C and pH 5. Results showed a synergic effect of acid blue 25 in the adsorption of Cd+2 and Zn+2. Thus, the amount of metal ions adsorbed on both activated carbons increased with the initial concentration of acid blue 25. The effect was especially remarkable in the case of the adsorption of Zn2+ ions on the wood-based carbon. For this particular system, the metal uptake increased up to …


Modeling Of Fixed-Bed Adsorption Of Fluoride On Bone Char Using A Hybrid Neural Network Approach, Rigoberto Tovar-Gómez, Ma. Del Rosario Moreno-Virgen, José Alonso Dena-Aguilar, Virginia Hernández-Montoya, Adrian Bonilla-Petriciolet, Miguel A. Montes-Moran Jan 2013

Modeling Of Fixed-Bed Adsorption Of Fluoride On Bone Char Using A Hybrid Neural Network Approach, Rigoberto Tovar-Gómez, Ma. Del Rosario Moreno-Virgen, José Alonso Dena-Aguilar, Virginia Hernández-Montoya, Adrian Bonilla-Petriciolet, Miguel A. Montes-Moran

Adrian Bonilla-Petriciolet

This study introduces a hybrid model based on the Thomas equation and artificial neural networks (ANNs) for the modeling of unsymmetrical breakthrough curves obtained from the fluoride adsorption on bone char. Experimental results of kinetics, isotherms and breakthrough curves of fluoride adsorption on two commercial bone chars have been used for analyzing the capabilities and limitations of this hybrid ANN model. Performance of this hybrid model has been studied and compared with respect to the results of traditional linear regression of the Thomas breakthrough equation at different operating conditions of packed-bed adsorption columns. Results showed that an improvement in the …


Assessment Of Capabilities And Limitations Of Stochastic Global Optimization Methods For Modeling Mean Activity Coefficients Of Ionic Liquids, Adrian Bonilla-Petriciolet, Seif-Eddeen K. Fateen, Gade Pandu Rangaiah Jan 2013

Assessment Of Capabilities And Limitations Of Stochastic Global Optimization Methods For Modeling Mean Activity Coefficients Of Ionic Liquids, Adrian Bonilla-Petriciolet, Seif-Eddeen K. Fateen, Gade Pandu Rangaiah

Adrian Bonilla-Petriciolet

In this paper, we have studied and analyzed the capabilities and limitations of seven stochastic global optimization methods to model mean activity coefficients of ammonium aqueous electrolytes using the electrolyte NRTL model. These stochastic methods are: simulated annealing (SA), genetic algorithm (GA), differential evolution (DE), particle swarm optimization (PSO), DE with tabu list (DETL), harmony search (HS) and bare bones PSO (BBPSO). Convergence characteristics and performances of these optimization methods have been tested and compared using different stopping conditions. Overall, our results indicate that SA, DETL and BBPSO offer better performance and promising convergence characteristics for solving parameter estimation problems …


On The Multiple Solutions Of The Reactive Distillation Column For Production Of Fuel Ethers, José Enrique Jaime-Leal, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernández, Salvador Hernández, Héctor Hernández-Escoto Jan 2013

On The Multiple Solutions Of The Reactive Distillation Column For Production Of Fuel Ethers, José Enrique Jaime-Leal, Adrian Bonilla-Petriciolet, Juan Gabriel Segovia-Hernández, Salvador Hernández, Héctor Hernández-Escoto

Adrian Bonilla-Petriciolet

A systematic study of the operating conditions and parameter sensibility of multiple steady states in a reactive distillation column for production of fuel ethers is presented. The multiplicity analysis is performed using bifurcation diagrams for several scenarios using the process simulator Aspen One Aspen Plus. Our results indicate that the main variables that affect both the presence and behavior of multiple solutions in the reactive distillation column are the reflux ratio, the reboiler duty and the thermal condition in the feed stream. In particular, we have determined that the vapor-liquid stream in the feed has a major influence on the …


Optimization Of Pyrolysis Conditions And Adsorption Properties Of Bone Char For Fluoride Removal From Water, Karina Rojas-Mayorga, Adrian Bonilla-Petriciolet, Ismael A. Aguayo-Villarreal, Virginia Hernandez-Montoya, Ma. Del Rosario Moreno-Virgen, Rigoberto Tovar-Gomez, Miguel A. Montes-Moran Jan 2013

Optimization Of Pyrolysis Conditions And Adsorption Properties Of Bone Char For Fluoride Removal From Water, Karina Rojas-Mayorga, Adrian Bonilla-Petriciolet, Ismael A. Aguayo-Villarreal, Virginia Hernandez-Montoya, Ma. Del Rosario Moreno-Virgen, Rigoberto Tovar-Gomez, Miguel A. Montes-Moran

Adrian Bonilla-Petriciolet

This study reports the optimization of pyrolysis process for the synthesis of bone char for fluoride removal from water. Specifically, we have performed a detailed analysis of the adsorption properties of bone char samples obtained at different operating conditions of pyrolysis. Results show that the pyrolysis temperature plays a major role to synthetize an effective bone char for water defluoridation. In particular, a pyrolysis temperature higher than 700 °C may cause the dehydroxylation of the hydroxyapatite of bone char affecting its fluoride adsorption capacities. The best adsorption properties of bone char for fluoride removal are obtained with those samples synthetized …


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 Jan 2012

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 …


Global Gibbs Free Energy Minimization In Reactive Systems Via Harmony Search, Adrian Bonilla-Petriciolet, Ma. Del Rosario Moreno-Virgen, Juan Jose Soto-Bernal Jan 2012

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 …


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 Jan 2012

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 Jan 2012

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; …