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117 articles for “kinetics”
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Evaluation of Kinetic Parameters of Crude Oil Remediation Using Bio-Stimuant of Mint Leaf (Mentha piperita)
Abstract: Kinetic parameters of crude oil degradation as related to total petroleum hydrocarbon (TPH) were evaluated. The experiment was set-up using crude oil, loamy soil polluted and addition of bio-stimulant (nutrient based substance). The depletion of the pollutant was monitored within the contact time of 7 to 35 days. At intervals of 7 days samples were collected and analyzed to determine the TPH concentration at each bioreactor set-up, through subjecting the …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 1, 2026 · pp. 62–71 Read article
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A method to determine kinetic triplet by coupled with model-free method and model-fitting method
Abstract: The present study is aimed to obtain integral linear method using rational expressions given by Senum and Yang, and a method of selecting the reaction model more quickly and easily and compute the activation energy and pre- exponential factor more accurately was proposed. An improved linear integral procedure coupled with one model-free method and one model-fitting method for the determination of kinetic triplet using non-isothermal data recorded at several heating …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 1, 2025 · pp. 1–13 Read article
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Kinetic Modeling of Biomass Pyrolysis for Renewable Energy Production.
Abstract: Biomass pyrolysis is a promising technology for renewable energy production, offering a sustainable alternative to fossil fuels. This process involves the thermal decomposition of organic materials in the absence of oxygen, resulting in the generation of bio-oil, syngas, and biochar. Kinetic modeling of biomass pyrolysis is essential for optimizing the process and enhancing the yield and quality of the products. This abstract presents a comprehensive review of kinetic models used …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 · pp. 1–6 Read article
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Evaluation of Kinetic Parameters of Total PetroleumHydrocarbon Degradation Using Grape Leaf as Nutrientto Catalyze the Reaction
Abstract: The outcomes of the research are to determine and evaluate the kinetic parameters of total petroleum hydrocarbon degradation using grape leaf as nutrient to catalyze the reaction. The application of the Michaelis–Menten model equation in combination with the Lineweaver–Burk Plot theoretical conceptual techniques was adopted in handling the computation of the functional parameters and coefficients of the system. The impact of bio-remediant dosage was monitored, and the kinetic parameters were …
Published in International Journal of Chemical Engineering and Processing · Vol. 12, Issue 2, 2026 · pp. 1–9 Read article
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Kinetic and Mechanistic Study of Isomenthol Oxidation by Trichloroisocyanuric Acid in Acidic Medium
Abstract: The oxidation reaction of isomenthol with trichloroisocyanuric acid (TCICA) was systematically investigated in acidic medium to understand its kinetics, reaction mechanism, and overall reactivity. The study was carried out under pseudo-first-order conditions by maintaining a large excess of isomenthol relative to TCICA, allowing accurate determination of the reaction rate. The progress of the oxidation reaction was monitored kinetically, and the obtained data revealed that the reaction follows first-order kinetics with …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 · pp. 1–7 Read article
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Kinetic Modifications in Polymers under Cryogenic Stress: A Thermochemical Study
Abstract: This study explores the kinetic modifications in polymers subjected to cryogenic stress, focusing on the thermochemical behavior and structural changes that occur at low temperatures. Polymers, when exposed to cryogenic conditions, exhibit distinct molecular rearrangements, influencing their mechanical properties and thermal stability. The investigation involves characterizing these polymers using advanced spectroscopic and thermal analysis techniques to identify alterations in crystallinity, molecular weight distribution, and glass transition temperature. By examining the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Thermal Dynamics and Kinetic Modelling of Cryogenic Fuels in Aerospace and IndustrialApplications
Abstract: Cryogenic fuels are critical for high-speed aerospace and industrial applications, where efficient handling, storage, and usage are paramount for performance and safety. This study explores the thermal dynamics and kinetic modeling of cryogenic fuels, focusing on liquid handling systems and propellant technologies. Utilizing computational fluid dynamics (CFD) analysis, the research evaluates the behavior of cryogenic liquids within insulated vessels under extreme temperature conditions, identifying key parameters that influence thermal stability …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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AN OUTLINE OF KINETICS VERSUS THERMODYNAMICS CHEMISTRY
Abstract: Nearly all chemical reactions has a kinetic and a thermodynamic feature. The terms ‘kinetic’ and ‘thermodynamic’ though inter-related are two diverse aspects of a chemical reaction. This paper represents an outline of the underlying relationships between the two through application to chemical reactions and an example from natural processes. A required condition for thermodynamic control is reversibility or a mechanism allowing the equilibration between products. In this manner, the thermodynamically …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 2, 2017 · pp. 17–20 Read article
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The decomposition of tris-(oxalato)-manganate (III) complex ion as the reaction suitable for the laboratory practice on chemical kinetics
Abstract: The complex ion [Mn(C2O4)3]3- is very photosensitive and rapidly decomposes at the daylight even at ambient temperatures. Although the mechanism of this reaction is complicated, its kinetic equation obeys the pseudo-first order. In addition, the tris-(oxalate)-manganate ion has a low thermal stability, and the reaction of its decomposition is highly affected by temperature. This makes this reaction very suitable for demonstrating the laws of chemical kinetics to the students – …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 2, 2016 · pp. 1–10 Read article
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KINETICS AND MECHANISM OF OXIDATION OF MIXTURE OF OXALIC ACID AND ADIPIC ACID BY CHROMIC ACID IN PRESENCE OF HYDROCHLORIC ACID
Abstract: The kinetics of oxidation of mixture of oxalic acid and adipic acid by chromic acid in presence of hydrochloric has been studied. The products are succinic acid and carbon dioxide. The rate of oxidation increases with the increase in the concentration of HCl acid. kinetics of oxidation of mixture of oxalic acid and adipic acid by chromic acid shows first order reaction at 270 c, order of the reaction is …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 1, 2018 · pp. 23–27 Read article
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Kinetic Modeling and Thermodynamic Study of the Simultaneous Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs) Onto Organomontmorillonite in Aqueous Medium
Abstract: Water is a vital source of human life, but it has frequently been polluted by mono and polycyclic aromatic hydrocarbons, usually from petrochemicals in petroleum industrial effluents as well as other anthropogenic activities. This study investigate the potential of montmorillonite intercalated HDTMAand TMPA cations for effective removal of five (5) different polycyclic aromatic hydrocarbons (PAH) namely: naphthalene, anthracene, chrysene,benzo(a)pyrene and benzo(g,h,i) perylene in aqueous medium. To research PAH adsorption behaviour …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 1, 2022 · pp. 28–38 Read article
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A Comprehensive Combustion Kinetics Modeling Study of Iso-Octane and Air Mixtures
Abstract: The oxidative behavior of the iso-octane (2,2,4-trimethylpentane) has been studied in a range of experimental facilities in order to investigate the relatively unexplored combustion chemistry of the title species and to provide combustor relevant experimental data. The ignition of iso-octane/air and iso-octane/O2 mixtures was studied at temperatures of 600–1300 K, pressures of 1–50 atm, and equivalence ratio 0.5 to 2. This study has been conducted analytically using a kinetic scheme …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 4, Issue 2, 2018 · pp. 30–38 Read article
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Iron Pillared Clay for Sorption of Toluene in Aqueous Solution: Kinetics and Equilibrium Studies
Abstract: The adsorption of toluene using unmodified and Fe-pillared clay were investigated in this study using UV/Visible, FT-IR spectroscopic measurements and batch adsorption process. The framework vibration of the clay before and after pillaring were determined using FTIR spectra. Effect of Contact time and initial and various concentration of toluene at constant temperature were investigated. The experimental data were studied using equilibrium isotherm (Langmuir and Freundlich) and kinetics models (pseudo first …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 1, 2022 · pp. 1–10 Read article
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Pyrolysis Characteristics and Isoconversional kinetics of kusum deoiled seedcake.
Abstract: The pyrolysis characteristics and kinetics of kusum de-oiled seed cake were conducted using a Thermo gravimetric analyzer. Thermogravimetric analysis of biomass was carried out at three different heating rates of 10, 20, 30, ̊ C/min from 28 ̊ C to 1000 ̊ C under N2 atmosphere. The results indicated that the biomass was decomposed in the temperature range of 270 ̊C to 520 ̊ C and further decreased when temperature …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 2, 2016 · pp. 9–17 Read article
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Kinetics of oxidation of Isonicotinic Acid Hydrazide by Iron (III)-2,2ı-Bipyridyl complex-Micellar effect of Sodium DoDecyl Sulphate
Abstract: The kinetics of oxidation of Isonicotinic Acid Hydrazide (INH) using Iron (III) -2,2ı-Bipyridyl complex was studied spectrophotometrically in acidic medium. The stoichiometry of the reaction between INH and Iron (III) - 2,2ı-Bipyridyl complex was found to be 4:1. The rate of the reaction is enhanced by increasing [acid]. The reaction obeys first order kinetics with respect to iron (III) and 2, 2’Bipyridyl.The rate of the reaction is markedly accelerated in …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 1, 2018 · pp. 51–56 Read article
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Thermodynamic and Kinetic Characterization of Aluminum Corrosion and Inhibition Adsorption of Vernonia Amygdalina Fruit Extract IN 0.5N H2SO4
Abstract: Anti-corrosive efficacy of ethanolic extract of Vernonia amygdalina fruit extract on corrosion of aluminum in 0.5N H2SO4 acidic solution was explored by mass loss measurement at rise in temperature between 303-343 K for 24 hours immersion period. The I.E. (η%) has been noticed prominently high (62.92%) at concentration 0.45% at 303 K. An inhibitor adsorption on the surface aluminum have been found to be best fitted Langmuir adsorption isotherm. It …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 1, 2023 · pp. 20–27 Read article
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Development of Momentum Transfer and Kinetic Model for Hydrocarbon Degradation in a Flowing Stream
Abstract: ABSTRACTA momentum transfer and kinetic model for prediction of individual hydrocarbon degradation in a flowing stream system has been developed in this study. This model was developed to monitor, predict and simulate degradation of individual hydrocarbon in most flowing streams in the Niger Delta region of Nigeria. The model was developed from first principle using plug flow reactor concept. It was simulated with MATLAB R2007b software using data of crude …
Published in International Journal of Chemical Separation Technology · Vol. 6, Issue 2, 2020 · pp. 17–34 Read article
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Studies on the Kinetics of Thermal Decomposition of Copper Oxalate Mixed With Silver Oxalate
Abstract: The coprecipitates, Ag2Cu(C2O4)nH2O of varying composition [Ag = (1 and 2)%], have been synthesized and were characterized by means of IR, XRD, and SEM. The decomposition of the prepared oxalates was monitored by differential scanning calorimetry (DSC) and thermogravimetry (TG). The DSC studies reveal that the decompositions of the mixed oxalates were all complex exothermic processes with resemblance to the exothermic reaction of copper oxalate and ranges from 540 to …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 1, 2016 · pp. 1–11 Read article
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Kinetics vs. Thermodynamics: An Overview
Abstract: Almost every chemical reaction has a kinetic and a thermodynamic aspect. The terms ‘kinetic’ and ‘thermodynamic’ though inter-related are two different facets of a chemical reaction. Here is an overview of the underlying relationships between the two through application to chemical reactions and an example from natural processes. Keywords: activation energy, chemical reaction, kinetic, reactant, thermodynamics
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 1, 2016 · pp. 25–27 Read article
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Kinetics and Mechanisms of the Reduction of Some Carbonyl Compounds with Sodium Dithionite in Aqueous Alkaline Medium
Abstract: Kinetics of the reduction of some carbonyl compounds (acetophenone, benzophenone, benzaldehyde, and salicylaldehyde) with sodium dithionite was studied at 28± 0.5oC and basic concentration in the range of 0.01 to 0.05 mol dm-3 (NaHCO3). Under these conditions, the reaction rates were found to be first order with respect to sodium dithionite as plot of log kobs versus log [S2O42-] showed linearity to about 95% extent of reaction, however, the overall …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 2, 2016 · pp. 11–19 Read article