Sharif Digital Repository

The modeling of kinetics and catalyst deactivation in propane dehydrogenation over Pt-Sn/γ-Al2O3 in presence of water as an oxygenated additive

Author

Barghi, B.

Pub. Year

2014

Subjects

Mathematical modeling. / Oxygenated additives. / Bench scale reactor. / Dehydrogenation reactions. / Kinetic modeling. / Langmuir-Hinshelwood. / Oxygenated additive. / Presence of water. / Propane dehydrogenation. / Temperature range. / Atmospheric pressure. / Catalyst deactivation. / Dehydrogenation. / Enzyme kinetics. / Kinetics. / Mathematical models. / Platinum. / Propane. / Sintering. / Catalyst activity.

A theoretical and experimental investigation of wastewater treatment for a polyethylene terephthalate production unit

Author

Vafajoo, L.

Pub. Year

2014

Subjects

Bioconversion. / Bioreactors. / Effluent treatment. / Effluents. / Energy conservation. / Ethylene. / Fermentation. / Flow velocity. / Fluidization. / Fluidized beds. / Granulation. / Methane. / Plastic bottles. / Substrates. / Urea. / Wastewater treatment. / Ammonium phosphates. / Bioreactor models. / Experimental investigations. / Granule densities. / Hybrid bioreactor. / Particle distributions. / Petrochemical complex. / Substrate kinetics. / Volatile fatty acids.

Kinetic modeling of propane dehydrogenation over an industrial catalyst in the presence of oxygenated compounds

Author

Barghi, B.

Publisher

Springer,

Pub. Year

2012

Subjects

Kinetic modeling. / Propane dehydrogenation. / Pt-Sn/γ-Al 2O 3. / Coke deposition. / Coke formation. / Dehydrogenation reactions. / Experimental data. / Industrial catalyst. / Kinetic models. / Laboratory-scale reactor. / Model prediction. / Oxygenated compounds. / Temperature range. / Atmospheric pressure. / Catalyst deactivation. / Catalysts. / Kinetic theory. / Kinetics. / Methanol. / Platinum. / Propane. / Sintering. / Dehydrogenation.

Modeling of Pt-Sn/γ-Al2O3 deactivation in propane dehydrogenation with oxygenated additives

Author

Samavati, A.

Pub. Year

2013

Subjects

Coke Formation. / Deactivation. / Oxygenated Additives. / Propane Dehydrogenation. / Side Reactions.

Development of a continuous kinetic model for visbreaking reactions

Author

Shadbahr, J.

Pub. Year

2011

Subjects

Continuous mixture. / Adjustable parameters. / Concentration distributions. / Continuous mixtures. / Continuous modeling. / Continuous models. / Experimental data. / Kinetic analysis. / Kinetic modeling. / Kinetic models. / Lumping model. / Reaction conditions. / Reaction temperature. / Vacuum residue. / Vacuum residues. / Visbreaking. / Weight percent. / Igneous rocks. / Kinetic theory. / Mixtures. / Phase transitions. / Vacuum. / Kinetics. / Literature review. / Reaction kinetics. / Temperature effect.

Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model

Author

Tourani, S.

Pub. Year

2015

Subjects

Activity coefficient model. / Henry's constant. / Activity coefficients. / Forecasting. / Gibbs free energy. / Phase equilibria. / Van der Waals forces. / Activity coefficient model. / Excess Gibbs energy. / Henry's constants. / Interaction parameters. / Polymer chains. / Tait equation. / Van der waals. / Equations of state.

A new nonlinear optimization method for parameter estimation in enzyme kinetics

Author

Heydari, A.

Publisher

Taylor and Francis Inc,

Pub. Year

2015

Subjects

Curve fitting. / Nonlinear optimization. / Curve fitting. / Enzyme kinetics. / Enzymes. / Estimation. / Genetic algorithms. / Nonlinear equations. / Nonlinear programming. / Numerical methods. / Optimization. / Particle swarm optimization (PSO) / Least Square. / Michaelis-Menten. / Michaelis-Menten constant. / Michaelis-Menten equations. / Nonlinear optimization methods. / Numerical optimization techniques. / Optimization method. / Parameter estimation.

Effect of Operating Conditions and Additives on the Product Yield and Sulfur Content in Thermal Cracking of a Vacuum Residue from the Abadan Refinery

Author

Safiri, A.

Publisher

American Chemical Society,

Pub. Year

2015

Subjects

Coking. / Cracking (chemical) / Cracks. / Distillation. / Ionization of gases. / Nanoparticles. / Refining. / Sulfur. / Aluminum oxide nanoparticles. / Liquid products. / Operating condition. / Reaction pressure. / Reaction temperature. / Sulfur contents. / Thermal cracking. / Vacuum distillation. / Liquids.

Modeling of catalyst deactivation in zeolite-catalyzed alkylation of isobutane with 2-butene

Author

Hamzehlouyan, T.

Pub. Year

2010

Subjects

Kinetics. / 2-butene. / Alkylation reactions. / Deactivation pathways. / Diffusion limited. / Diffusivities. / Faujasites. / Function of time. / Isobutane alkylation. / Isobutanes. / Kinetics modeling. / Liquid phase conditions. / Liquid-phase alkylation. / Mixed reactors. / Model catalysts. / Modeling. / Power-law expression. / Rate of reaction. / Solid acid catalysts. / Spatial variations. / Alkylation. / Butane. / Butenes. / Catalysis. / Catalyst poisoning. / Diffusion. / Hydrocarbons. / Liquids. / Silicate minerals. / Zeolites. / Catalyst deactivation.

Kinetic modeling of pyrolysis of scrap tires

Author

Mazloom, G.

Pub. Year

2009

Subjects

Continuous lumping. / Discrete lumping. / Kinetic modeling. / Pyrolysis. / Scrap tires. / Chemical reactions. / Forecasting. / Hydrocarbons. / Igneous rocks. / Mixtures. / Parameter estimation. / Pyrolysis. / Thermogravimetric analysis. / Tires. / Alternative process. / Boiling point distributions. / Boiling ranges. / Catalytic pyrolysis. / Complex systems. / Continuous lumping. / Continuous mixtures. / Continuous models. / Discrete lumping. / Discrete models. / Environmental problems. / Experimental datum. / First-order reactions. / Kinetic modeling. / Kinetic models. / Lumping models. / Model parameters. / Model predictions. / Optimization procedures. / Product yields. / Pyrolysis products. / Reactant mixtures. / Scrap tires. / Thermal pyrolysis. / Used tires. / Boiling point.

Synthesis of highly dispersed nanosized NiO/MgO-Al2O3 catalyst for the production of synthetic natural gas with enhanced activity and resistance to coke formation

Author

Ebadi, A.

Pub. Year

2018

Subjects

Alumina. / Aluminum oxide. / Coke. / Magnesia. / Metal nanoparticles. / Natural gasoline plants. / Nickel oxide. / Sintering. / Synthesis (chemical) / Acidic surface. / Impregnation methods. / Mesoporous support. / Metal-support interactions. / Nickel nanoparticles. / Nickel nitrate. / Operating condition. / Synthetic natural gas. / Nanocatalysts.

Comparative process modeling and techno-economic evaluation of renewable hydrogen production by glycerol reforming in aqueous and gaseous phases

Author

Khodabandehloo, M.

Publisher

Elsevier Ltd,

Pub. Year

2020

Subjects

Glycerol aqueous phase reforming. / Glycerol steam reforming. / Process modeling and design. / Cost estimating. / Economic analysis. / Glycerol. / Hydrogen production. / Investments. / Monte Carlo methods. / Process engineering. / Sensitivity analysis. / Aqueous-phase reforming. / Discounted cash flow. / Independent parameters. / Monte Carlo simulation methods. / Net present value. / Process Modeling. / Renewable hydrogen production. / Techno-economic evaluation. / Steam reforming.

Application of an optimization algorithm for estimating intrinsic kinetic parameters of immobilized enzymes

Author

Khorasheh, F.

Publisher

Society of Fermentation and Bioengineering,

Pub. Year

2002

Subjects

Immobilized enzyme. / Intrinsic kinetic constants. / Parameter estimation.

Thermal degradation behavior and kinetic analysis of ultra high molecular weight polyethylene based multi-walled carbon nanotube nanocomposites prepared via in-situ polymerization

Author

Shariati, J.

Publisher

T&F,

Pub. Year

2012

Subjects

Ultra high molecular weight polyethylene. / Catalytic effects. / Decomposition temperature. / Degradation activation energy. / Degradation behavior. / Degradation temperatures. / High molecular weight polyethylenes. / In-situ polymerization. / Kinetic analysis. / Kissinger. / Mass loss. / Model fitting method. / Nanotube loading. / Onset temperature. / Polymerization catalysts. / Stabilizing effects. / Thermal degradation kinetics. / Weight loss. / Degradation. / Multiwalled carbon nanotubes (MWCN) / Nanocomposites. / Nanotubes. / Polymerization. / Reaction kinetics. / Thermogravimetric analysis. / Activation energy.