Seif-Eddeen K Fateen

• Professor
• Professor (Associate) at Zewail City of Science and Technology

This paper presents a simple method for solving multireaction chemical equilibrium via Gibbs Minimization through the use of a stochastic global optimizer. The method is explained at the level of upper-undergraduate chemistry or chemical engineering students. Its matlab code is also presented and explained. Four examples with varying difficulties i...

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 th...

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...

Negative magnetophoresis of non-magnetic particles is the induced motion of non-magnetic particles suspended in magnetic media on the application of a magnetic field gradient. Negative magnetophoresis can be used to separate nanoparticles based on their size. An integrated finite-element model was developed using COMSOL to study the transport and s...

Most of desalination processes require a large amount of energy derived from natural gas and oil, which are non-renewable energy, for supply heat and electric energy. So, this paper depends on solar energy as a source of renewable energy, and can be powered for producing fresh water. The method used to build up the system is solar desalination by h...

The removal of CO2 from flue gases is one of the potential mitigation measures to address the climate change problem. To that end, adsorption is a promising technology that is currently being developed. The scope of the present work is to study the mass transfer profiles at multiscale levels for adsorption CO2 and the effects of both macropores and...

The Rankine cycle is considered the most common and competitive power generation cycle to produce electricity from solar thermal energy. This paper reviews the work done on the solar Rankine cycle systems for power generation and focuses on the working fluids investigated in the literature and the application of these systems in water pumping and w...

The synthesis of short chain Poly Oxymethylene Dimethyl Ethers, also known as Oxymethylene Ethers (OME; molecular formula: H3CO-(CH2O)n-CH3 where n = 1 - 8) is described through the application of Non-Stoichiometric Gibbs Minimisation (NSGM) to a synthesis based on methanol and anhydrous formaldehyde. The presented approach shows several synthesis...

This paper presents a review of the design parameters, mathematical techniques and simulations used in the design of parabolic trough solar systems, along with a review on their applications. Recent studies that analyze the deployment of solar parabolic trough collectors (SPTC) in different countries and the operational SPTC plants are also present...

This study focuses on developing a mathematical model for the electrochemical reduction of CO2 into CH3OH in a microfluidic flow cell. The present work is the first attempt to model the electro-reduction of CO2 to alcohols, which is a step forward toward the scale up of the process to industrial operation. The model features a simple geometry of a...

Carbon dioxide levels are increasing faster than they have in hundreds of thousands of years due to fossil fuels burning [1]. The world mainly relies on these fuels as a source for the growing energy demands. A serious worldwide interest is growing towards the field of CO2 valorization as a step in transitioning away from fossil fuel economy at the...

This paper investigates the numerical behavior of several stochastic optimization methods in phase equilibrium modeling and calculations using different stopping (also known as termination and convergence) criteria. Several optimization methods, namely, Ant Colony Optimization, Particle Swarm Optimization, Differential Evolution and Harmony Search,...

The Claus process is used extensively in the industry to recover elementary sulfur from hydrogen sulfide present in gases from refineries and natural gases. It involves thermal oxidation of hydrogen sulfide and its reaction with sulfur dioxide to form sulfur and water vapor. In this study, we used a computational fluid dynamics (CFD) tool to build...

One proposed solution to the energy problem is to capture carbon dioxide emitted from the combustion of fossil fuels and then convert carbon dioxide back to liquid fuels, using energy obtained from renewable sources. In particular, the conversion of carbon dioxide to methanol via the electrochemical reduction of carbon dioxide is one of the high-po...

Phase equilibrium calculations (PEC) and phase stability (PS) analysis of reactive and non-reactive systems problems are important for the simulation and design of chemical engineering processes. These problems, which are challenging multi-variable and non-convex, require optimization techniques that are both efficient and effective in finding the...

This chapter focuses on the transport and storage of CO2. It discusses the different transportation options and presents some guidelines for the pipeline transportation of CO2. The storage of CO2 is discussed with some details; Different types of trapping, physical trapping, residual trapping, solubility trapping, and ionic and mineral trapping, ar...

Background/Scope: Mechanical drilling, the gold standard to reach oil and gas reservoirs, is associated with drilling risks and increased time and costs. Laser drilling has emerged as a potential new drilling tool. However, studies about its practical applications are limited. This study investigates the feasibility and performance of laser technol...

This study introduces new soft computing optimization techniques for performing the phase stability analysis and phase equilibrium calculations in both reactive and non-reactive systems. In particular, the performance of the several swarm intelligence optimization methods is compared and discussed based on both reliability and computational efficie...

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 Al...

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 Al...

This study introduces the bio-inspired computation method namely Cuckoo Search (CS) as a parameter estimation method for modeling the mean activity coefficients of quaternary ammonium aqueous ionic liquids using the e-NRTL model. CS has not been used before to address this particular parameter estimation problem. Our calculations showed that the CS...

The aim of this work is to develop a kinetic model of the oligomerization of ethylene to Linear Alpha Olefins (LAOs) for zirconium/aluminum and nickel/zinc catalyst systems. The development of such model helps in the study of the behavior of industrial LAOs reactors as well as in the optimization of their operation. The kinetic model was developed...

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 introduce a new algorithm, MAKHA, which is a hybrid between Monkey Algorithm (MA and Krill Herd Algorithm (KHA). Its performance is compared with...

This study introduces a strategy to improve the effectiveness of Cuckoo Search algorithm for the unconstrained Gibbs free energy minimization in phase equilibrium calculations of non-reactive systems. Specifically, the gradient information of the unconstrained Gibbs free energy function, which is readily available, is used to enhance the balance be...

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 stabili...

In this study, we investigated the use of ion exchange processes using a chelating resin, Diaion CRB02 for the removal of boron from the bittern solution left after the extraction of sodium sulfate and sodium chloride from the water of Lake Qarun, located in Egypt. The effects of parameters such as the initial boron concentration and the pH value o...

Stochastic global optimization algorithms have shown promise in providing reliable and efficient solutions for phase stability and phase equilibrium problems in reactive and non-reactive systems. A special class of stochastic methods is Swarm Intelligence, in which search agents are allowed to interact with each other and with their environment, an...

Circulating fluidized bed steam reformers (CFBSR) represent an important alternative for hydrogen production, a promising energy carrier. Although the reactor hydrodynamics play crucial role, modeling efforts to date are limited to one-dimensional models thus ignoring many of the flow characteristics of fluidized-beds that have strong effects on th...

Intelligent firefly algorithm (IFA) is a novel global optimization algorithm that aims to improve the performance of the firefly algorithm (FA), which was inspired by the flashing communication signals among firefly swarms. This chapter introduces the IFA modification and evaluates its performance in comparison with the original algorithm in twenty...

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 th...

This study introduces the bio-inspired computation method namely Cuckoo Search (CS) as a parameter estimation method for modeling the mean activity coefficients of quaternary ammonium aqueous ionic liquids using the e-NRTL model. CS has not been used before to address this particular parameter estimation problem. Our calculations showed that the CS...

Peng-Robinson equation of state is widely used with the classical van der Waals mixing rules to predict vapor liquid equilibria for systems containing hydrocarbons and related compounds. This model requires good values of the binary interaction parameter kij . In this work, we developed a semi-empirical correlation for kij partly based on the Huron...

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 swar...

In this work, Cuckoo Search is introduced for performing phase equilibrium and stability calculations for the first time. Cuckoo Search is a population-based method that mimics the reproduction strategy of cuckoos. This meta-heuristics have been successfully used for solving some engineering design and optimization problems with promising results....

The thermal processing of canned food is the most important step in the canning procedure. Retort operating procedures must ensure that uniform processing temperature is achieved and maintained throughout the locations of the canned containers during the process. In this study, temperature distribution tests have been used as a means of verifying t...

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Circulating Fluidized Bed Steam Reformers (CFBSRs) represent an important alternative for the production of syngas for the Fisher-Tropsch (FT) process and for hydrogen production. Most research regarding this novel CFBSRs did not consider its hydrodynamic characteristics. In this work, the riser Computational Fluid Dynamics (CFD) simulations were i...

Wastewater discharged from metal-finishing processes usually contains cyanide, a hazardous substance that is used extensively in the surface finishing industry. In the present study, a synthetic solution resembling the contaminated wastewater was chemically treated using ferrous sulfate. This simple one-step process was applied successfully to remo...

The ISA, based on system theory, is the best way to organize knowledge and exchange it. It depends on defining every system through its boundary, main processes within this boundary, and exchange with the environment through this boundary. It relies upon thermodynamics and information theory and is, therefore, applicable to all kinds of systems, wh...

Abstract: A steady state model was developed to investigate the performance of the catalytic partial oxidation tubular reactor for methanol oxidative dehydrogenation. The model utilized the kinetics developed from experimental results for the main reaction and three side reactions. The partial differential equations included in the model were the m...

A steady state model was developed to investigate the performance of the catalytic partial oxidation tubular reactor for methanol oxidative dehydrogenation. The model utilized the kinetics developed from experimental results for the main reaction and three side reactions. The partial differential equations included in the model were the mass transf...

Magnetophoresis is the migration of particles upon the application of an inhomogeneous magnetic field. The overall goal of this work was to investigate the magnetophoretic focusing of non-magnetic particles suspended in magnetic fluids, which are colloidal suspensions of nano-sized magnetic particles. With the magnetic fluid as the solvent, dispers...

We studied the migration of nonmagnetic, submicrometer polystyrene beads submerged in a magnetic fluid in the presence of nonuniform magnetic fields as a potential method for size-based separation of submicrometer, nonmagnetic species. Since the polystyrene beads are much larger than the magnetic fluid nanoparticles, the magnetic fluid was treated...

Small-angle neutron scattering and dynamic and static light scattering measurements were used to probe the structures of aqueous and organic-solvent-based magnetic fluids comprising dispersed magnetite nanoparticles (10 nm in diameter) stabilized against flocculation by adsorbed alkanoic acid layers. A core−shell model fitted to a set of neutron sc...

Three cubic equations of state combined with different mixing rules are examined with regard to their prediction of solid-supercritical fluid equilibria (SFE). The computed predictions are compared with experimental data. Results of the comparison are reported for highly asymmetric mixtures containing supercritical fluids such as carbon dioxide, et...

Magnetophoresis of non-magnetic particles is the induced motion of non-magnetic particles suspended in magnetic media on the application of a magnetic field gradient. It involves many driving forces arising from different transport phenomena. Magnetophoresis can be used in special separation devices to separate colloidal particles based on their si...