Oguzhan Ilgen

Oguzhan Ilgen
Kocaeli University · Department of Chemical Engineering

PhD

About

35
Publications
10,960
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528
Citations

Publications

Publications (35)
Article
This study investigated the effect of reaction parameter, reaction kinetics and mechanism of transesterification of sunflower oil with methanol by using CaO/ZnO heterogeneous catalyst. The influence of reaction time, molar ratio and catalyst amount and reaction temperature on fatty acid methyl esters (FAME) yield was investigated. The catalysts wer...
Conference Paper
Glycerine is formed as a by-product during biodiesel production. The reaction between glycerin and acetone produces solketal and water. Catalytic membranes catalyze a reaction and improve conversion in the reaction by removing the by-product. In this study, catalytic membrane was developed and its suitability for its use in solketal production was...
Conference Paper
Today, the use of fossil fuels has caused many environmental problems. In order to overcome these environmental problems, fuel additives have been developed. Solketal is an environmentally friendly fuel additive. Solketal, is produced by the reaction of glycerol with acetone in the presence of acidic catalyst. In this study, solketal was synthesize...
Article
In this work, activities of modified dolomite catalysts using calcium acetate in the heterogeneously catalyzed transesterification of microalgae oil with methanol were investigated. Modified catalysts were prepared via wet impregnation method and calcined 850°C for 2 h. Reaction conditions were examined as the catalyst type, amount of catalyst, met...
Conference Paper
Today, environmental problems caused by fossil fuels have increased the use of biodiesel. In the biodiesel industry, glycerol is largely formed as a by-product. Solketal, an environmentally friendly and renewable fuel additive, is produced by the reaction of glycerol with acetone in the presence of acidic catalyst. When solketal is added to gasolin...
Article
Full-text available
Biodiesel has poor cold flow properties due to their high saturated fatty acid content. Ethyl levulinate is used as bio-based cold flow improver additive in biodiesel. In this work, both ethyl levulinate and biodiesel were synthesized in the laboratory. Ethyl levulinate was added to the biodiesel at different rates, i.e, 5, 10, 15, 20 (vol %). The...
Article
This influence of reaction parameters like molar ratio of methanol to oleic acid, catalyst amount, reaction temperatures for oleic acid esterification with methanol by using Zr(SO4)2 as a heterogeneous catalyst has been investigated in this study. The conversion of 98 % was obtained when the esterification reaction was carried out under the reactio...
Article
In this study, the reactive separation system has been designed and operated for fuel bioadditive ethyl levulinate synthesis from ethanol and levulinic acid by using a catalytic composite membrane. The catalytic composite membrane was prepared by coating hydroxyethyl cellulose membrane with a thin layer of sulfated zirconia. The membranes were char...
Article
In this study, simultaneous transesterification and esterification of high acid value sunflower oil to fatty acid methyl esters was studied using Amberlyst 46 as a heterogeneous catalyst. The influence of reaction conditions such as molar ratio of methanol/oil, reaction time, and reaction temperature was investigated. The highest fatty acids methyl...
Article
Full-text available
In this study, transesterification of canola oil with methanol has been investigated in a heterogeneous system, using CaO-dolomite catalysts. The catalysts were prepared by incipient wetness impregnation of dolomite with aqueous solution of CaAc. The XRD results showed that all the CaAc and CaCO3 in dolomite were transformed to CaO after calcinatio...
Article
Full-text available
Recently, with rapid consumption of fossil fuel sources all over the world, the interest in alternative fuels has increased. Biodiesel is one of the most preferable one produced by transesterification of triglyceride with alcohol, yielding glycerol as the by-product. As a drawback, increase in biodiesel production has lead to an increase in availab...
Conference Paper
Full-text available
In biodiesel production process, many studies have been done for eliminating high cost of feedstock oils. For this reason, cheaper feedstocks such as non-edible oils, animal oils or waste cooking oils have been used. In this study, waste oil was prepared by adding 6 wt.% of oleic acid as free fatty acids into sunflower oil. The main reasons of choo...
Article
In this study, different catalytic membranes have been improved for use as heterogeneous acid catalyst to synthesize fuel bioadditive ethyl levulinate from levulinic acid and ethanol. Catalyst design was done by wet impregnation method. Catalytic membrane was prepared by solutıon casting method by loading of catalyst in hydroxyethyl cellulose polym...
Article
The experimental parameters for adsorption of oleic acid from oleic acid-sunflower oil mixtures has been investigated by using zeolite 13X. The effect of adsorption parameters such as contact time, temperature and adsorbent amount was studied. The experimental results were analyzed by using pseudo first order and pseudo second order kinetic models...
Article
In this study, the effect of reaction parameters such as molar ratio of methanol to oleic acid, catalyst amount, reaction temperature and reaction time was investigated for esterification of oleic acid with methanol in the presence of Amberlyst 46. The conversion of 98.6% was obtained when the reaction was performed at 3:1 molar ratio of methanol t...
Article
In this study, the removal of oleic acid from laboratory prepared oleic acid–sunflower oil mixtures has been investigated using Amberlyst A26 (OH) ion exchange resin. The influence of experimental conditions such as contact time, temperature, adsorbent amount and initial concentration of oleic acid was studied. The “pseudo-first order and pseudo-se...
Article
The reaction orders with respect to the reactants were determined for the reaction of canola oil with methanol catalyzed by KOH/MgO. The method of initial rates was used to determine the reaction rate. The experiments were carried out with different initial concentrations of methanol and canola oil. A very good correlation was found between the exp...
Article
The transesterification of canola oil with methanol was studied in a heterogeneous system, using marble dust catalyst. Effects of the reaction temperature, catalyst amount, methanol/canola oil molar ratio, and reaction time in biodiesel production were investigated. The results show that the methanol/canola oil molar ratio of 6:1, and the catalyst...
Article
In this study, using a power law approximation, the reaction orders of dolomite catalyzed transesterification of canola oil and methanol were evaluated. The reaction orders for triglyceride and methanol were determined as 1 and − 1.2 respectively, with a 0.9182 correlation coefficient. The rate constant was calculated as 3.9579 × 10− 3 (lt− 0.2/mol...
Article
In this study, the catalytic activity of dolomite was evaluated for the transesterification of canola oil with methanol to biodiesel in a heterogeneous system. The influence of the calcination temperature of the catalyst and the reaction variables such as the temperature, catalyst amount, methanol/canola oil molar ratio, and time in biodiesel produ...
Article
In this study, transesterification of canola oil with methanol has been studied in a heterogeneous system, using MgO-supported KOH catalysts. All of the catalysts were prepared by incipient-wetness impregnation of an aqueous solution of KOH on MgO support. Effects of the methanol/canola oil molar ratio, reaction temperature, loadings of KOH, and re...
Article
Full-text available
The transesterification of canola oil to fatty acid methyl esters was studied using Amberlyst-26 as a solid catalyst. The influence of reaction conditions, such as the reaction time, methanol to oil molar ratio, amount of catalyst, effect of co-solvent, and alcohol and oil types, were determined. When the reaction was carried out at 45 • C with a c...
Article
The transesterification of canola oil with methanol was studied in a heterogeneous system, using γ - Al2O3 supported alkaline catalysts. All the catalysts were prepared by incipient-wetness impregnation of an aqueous solution of alkaline compounds on γ -Al2O3 support. The effects of alkaline compound, methanol/canola oil molar ratio, reaction tempe...
Article
Full-text available
Biodiesel produced by the transesteri.cation of vegetable oils is a promising alternative fuel to diesel because of limited fossil fuel resources and environmental concerns. The use of heterogeneous catalysts greatly simplifies the technological process by facilitating the separation of the post-reaction mixture. The purpose of the present work was...

Questions

Question (1)
Question
I am looking for any reference for heating values (HHV and LHV) of solketal.
thanks...

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Projects

Project (1)
Project
Improvement of biodiesel production process by using high oleic acid content waste sunflower oil and investigation of reaction parameters and reaction kinetics