All Outputs (36)

Biofuel characteristics of chars produced from rapeseed, whitewood, and seaweed via thermal conversion technologies – Impacts of feedstocks and process conditions (2022)
Journal Article
Gulec, F., Samson, A., Williams, O., Kostas, E. T., & Lester, E. (2022). Biofuel characteristics of chars produced from rapeseed, whitewood, and seaweed via thermal conversion technologies – Impacts of feedstocks and process conditions. Fuel Processing Technology, 238, Article 107492. https://doi.org/10.1016/j.fuproc.2022.107492

Understanding the suitability of different conversion technologies for different types of biomass feedstocks is crucial in delivering the full valorisation of different types of biomass feedstocks. Optimal valorisation pathways can be identified by i... Read More about Biofuel characteristics of chars produced from rapeseed, whitewood, and seaweed via thermal conversion technologies – Impacts of feedstocks and process conditions.

A comprehensive comparative study on methylene blue removal from aqueous solution using biochars produced from rapeseed, whitewood, and seaweed via different thermal conversion technologies (2022)
Journal Article
Güleç, F., Williams, O., Kostas, E. T., Samson, A., Stevens, L. A., & Lester, E. (2022). A comprehensive comparative study on methylene blue removal from aqueous solution using biochars produced from rapeseed, whitewood, and seaweed via different thermal conversion technologies. Fuel, 330, Article 125428. https://doi.org/10.1016/j.fuel.2022.125428

This paper presents, for the first time, a comprehensive comparative analysis of the potential of using biochars from three distinctly different UK-sourced biomass feedstocks, produced via three different thermal processing techniques, to adsorb meth... Read More about A comprehensive comparative study on methylene blue removal from aqueous solution using biochars produced from rapeseed, whitewood, and seaweed via different thermal conversion technologies.

Predictability of higher heating value of biomass feedstocks via proximate and ultimate analyses – A comprehensive study of artificial neural network applications (2022)
Journal Article
Güleç, F., Pekaslan, D., Williams, O., & Lester, E. (2022). Predictability of higher heating value of biomass feedstocks via proximate and ultimate analyses – A comprehensive study of artificial neural network applications. Fuel, 320, Article 123944. https://doi.org/10.1016/j.fuel.2022.123944

Higher heating value (HHV) is a key characteristic for the assessment and selection of biomass feedstocks as a fuel source. The HHV is usually measured using an adiabatic oxygen bomb calorimeter; however, this method can be time consuming and expensi... Read More about Predictability of higher heating value of biomass feedstocks via proximate and ultimate analyses – A comprehensive study of artificial neural network applications.

Prediction of Biomass Pyrolysis Mechanisms and Kinetics: Application of the Kalman Filter (2021)
Journal Article
Güleç, F., Şimşek, E. H., & Tanıker Sarı, H. (2022). Prediction of Biomass Pyrolysis Mechanisms and Kinetics: Application of the Kalman Filter. Chemical Engineering and Technology, 45(1), 167-177. https://doi.org/10.1002/ceat.202100229

In order to predict the pyrolysis mechanisms of four different biomasses (Asbos (Psilocaulon utile), Kraalbos (Galenia africane), Scholtzbos (Pteronia pallens), and palm shell), a novel method called Kalman filter was investigated and the results wer... Read More about Prediction of Biomass Pyrolysis Mechanisms and Kinetics: Application of the Kalman Filter.

Investigation of the hydrodynamics in the regenerator of fluid catalytic cracking unit integrated by chemical looping combustion (2021)
Journal Article
Güleç, F., Erdogan, A., Clough, P. T., & Lester, E. (2021). Investigation of the hydrodynamics in the regenerator of fluid catalytic cracking unit integrated by chemical looping combustion. Fuel Processing Technology, 223, Article 106998. https://doi.org/10.1016/j.fuproc.2021.106998

Oil refineries are responsible for 4–6% of global CO2 emissions, and 20–35% of these emissions released from the regenerator of Fluid Catalytic Cracking (FCC) units, which are the essential units for the conversion of heavier petroleum residues (vacu... Read More about Investigation of the hydrodynamics in the regenerator of fluid catalytic cracking unit integrated by chemical looping combustion.

Hydrothermal conversion of different lignocellulosic biomass feedstocks - Effect of the process conditions on hydrochar structures (2021)
Journal Article
Güleç, F., Riesco, L., Williams, O., Kostas, E. T., Samson, A., & Lester, E. (2021). Hydrothermal conversion of different lignocellulosic biomass feedstocks - Effect of the process conditions on hydrochar structures. Fuel, 302, Article 121166. https://doi.org/10.1016/j.fuel.2021.121166

Five biomass feedstocks (Coffee residues, Rice waste, Whitewood, Zilkha black, and Lignin) were hydrothermally processed in a semi-continuous flow rig using 9 different processing conditions (75, 150, 250 °C, and 1, 50, 240 bar). Solid residues produ... Read More about Hydrothermal conversion of different lignocellulosic biomass feedstocks - Effect of the process conditions on hydrochar structures.

Prediction of sorption enhanced steam methane reforming products from machine learning based soft-sensor models (2020)
Journal Article
Nkulikiyinka, P., Yan, Y., Güleç, F., Manovic, V., & Clough, P. T. (2020). Prediction of sorption enhanced steam methane reforming products from machine learning based soft-sensor models. Energy and AI, 2, Article 100037. https://doi.org/10.1016/j.egyai.2020.100037

Carbon dioxide-abated hydrogen can be synthesised via various processes, one of which is sorption enhanced steam methane reforming (SE-SMR), which produces separated streams of high purity H2 and CO2. Properties of hydrogen and the sorbent material h... Read More about Prediction of sorption enhanced steam methane reforming products from machine learning based soft-sensor models.

Progress in the CO2 Capture Technologies for Fluid Catalytic Cracking (FCC) Units—A Review (2020)
Journal Article
Güleç, F., Meredith, W., & Snape, C. E. (2020). Progress in the CO2 Capture Technologies for Fluid Catalytic Cracking (FCC) Units—A Review. Frontiers in Energy Research, 8, https://doi.org/10.3389/fenrg.2020.00062

© Copyright © 2020 Güleç, Meredith and Snape. Heavy industries including cement, iron and steel, oil refining, and petrochemicals are collectively responsible for about 22% of global CO2 emissions. Among these industries, oil refineries account for 4... Read More about Progress in the CO2 Capture Technologies for Fluid Catalytic Cracking (FCC) Units—A Review.

Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts (2020)
Journal Article
Güleç, F., Meredith, W., Sun, C. G., & Snape, C. E. (2020). Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts. Chemical Engineering Journal, 389, Article 124492. https://doi.org/10.1016/j.cej.2020.124492

© 2020 Elsevier B.V. Fluid Catalytic Cracking (FCC) units are responsible for roughly 25% of CO2 emissions from oil refineries, which themselves account for 4–6% of total global CO2 emissions. Although post- and oxy-combustion technologies have been... Read More about Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts.

Methylation of 2-methylnaphthalene over metal-impregnated mesoporous MCM-41 for the synthesis of 2,6-triad dimethylnaphthalene isomers (2020)
Journal Article
Niftaliyeva, A., Güleç, F., & Karaduman, A. (2020). Methylation of 2-methylnaphthalene over metal-impregnated mesoporous MCM-41 for the synthesis of 2,6-triad dimethylnaphthalene isomers. Research on Chemical Intermediates, 46(4), 2403-2416. https://doi.org/10.1007/s11164-020-04098-8

2,6-Dimethylnaphthalene (2,6-DMN) is one of the key intermediates for the production of polyethylene naphthalate (PEN), which demonstrates superior properties compared with the polyethylene terephthalate. However, the complex synthesis procedure of 2... Read More about Methylation of 2-methylnaphthalene over metal-impregnated mesoporous MCM-41 for the synthesis of 2,6-triad dimethylnaphthalene isomers.

Understanding the liquefaction mechanism of Beypazarı lignite in tetralin with ultraviolet irradiation using discrete time models (2019)
Journal Article
Şimşek, E. H., Güleç, F., & Akçadağ, F. S. (2020). Understanding the liquefaction mechanism of Beypazarı lignite in tetralin with ultraviolet irradiation using discrete time models. Fuel Processing Technology, 198, Article 106227. https://doi.org/10.1016/j.fuproc.2019.106227

This study has proposed four different liquefaction models consisting of both reversible and irreversible reaction steps with three lumped parameters, asphaltenes, preasphaltenes, and oils, for the liquefaction of Turkish lignite (Beypazarı-Çayırhan)... Read More about Understanding the liquefaction mechanism of Beypazarı lignite in tetralin with ultraviolet irradiation using discrete time models.

Sustainable energy saving alternatives in small buildings (2019)
Journal Article
Sher, F., Kawai, A., Güleç, F., & Sadiq, H. (2019). Sustainable energy saving alternatives in small buildings. Sustainable Energy Technologies and Assessments, 32, 92-99. https://doi.org/10.1016/j.seta.2019.02.003

Day lighting significance in architectural designs is well established for enhancing visual comfort, energy-efficiency and low carbon buildings development. Practising the atrium element in the modern architectures has been increasingly popular in re... Read More about Sustainable energy saving alternatives in small buildings.

Selective low temperature chemical looping combustion of higher alkanes with Cu- and Mn- oxides (2019)
Journal Article
Güleç, F., Meredith, W., Sun, C., & Snape, C. E. (2019). Selective low temperature chemical looping combustion of higher alkanes with Cu- and Mn- oxides. Energy, 173, 658-666. https://doi.org/10.1016/j.energy.2019.02.099

Chemical looping combustion (CLC) of n-hexadecane and n-heptane with copper and manganese oxides (CuO and Mn2O3) has been investigated in a fixed bed reactor to reveal the extent to which low temperature CLC can potentially be applicable to hydrocarb... Read More about Selective low temperature chemical looping combustion of higher alkanes with Cu- and Mn- oxides.

A novel approach to CO2 capture in Fluid Catalytic Cracking-Chemical Looping Combustion (2019)
Journal Article
Güleç, F., Meredith, W., Sun, C.-G., & Snape, C. E. (2019). A novel approach to CO2 capture in Fluid Catalytic Cracking-Chemical Looping Combustion. Fuel, 244, 140-150. https://doi.org/10.1016/j.fuel.2019.01.168

Oil refineries collectively account for about 4–6% of global CO2 emissions and Fluid Catalytic Cracking (FCC) units are responsible for roughly 25% of these. Although post-combustion and oxy-combustion have been suggested to capture CO2 released from... Read More about A novel approach to CO2 capture in Fluid Catalytic Cracking-Chemical Looping Combustion.

A kinetic study on methylation of naphthalene over Fe/ZSM-5 zeolite catalysts (2017)
Journal Article
Güleç, F., Özen, A., Niftaliyeva, A., Aydın, A., Şimşek, E. H., & Karaduman, A. (2018). A kinetic study on methylation of naphthalene over Fe/ZSM-5 zeolite catalysts. Research on Chemical Intermediates, 44(1), 55-67. https://doi.org/10.1007/s11164-017-3090-5

2,6-Dimethylnaphthalene is an important dimethylnaphthalene isomer which can be used in the production of polyethylene naphthalate. The novelty of this study is to reveal Langmuir–Hinshelwood and Eley–Rideal reaction rate equations for the methylatio... Read More about A kinetic study on methylation of naphthalene over Fe/ZSM-5 zeolite catalysts.

Application of Kalman filter to determination of coal liquefaction mechanisms using discrete time models (2017)
Journal Article
Şimşek, E. H., Güleç, F., & Kavuştu, H. (2017). Application of Kalman filter to determination of coal liquefaction mechanisms using discrete time models. Fuel, 207, 814-820. https://doi.org/10.1016/j.fuel.2017.06.004

Seven different liquefaction mechanisms that consist of reversible and irreversible steps are suggested for a Turkish lignite (Tunçbilek) in tetralin with the use of microwave heating. Compliance of the proposed mechanisms are determined by forming f... Read More about Application of Kalman filter to determination of coal liquefaction mechanisms using discrete time models.