Department of Chemical Engineering, Thesis

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Thesis (1032)

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Author
Kocakuşak, Oktay (4)
Abusafa, Abdelrahim (2)
Akay, Ramiz Gültekin (2)
Akşahin, İlhan (2)
Alkaya, Dilek (2)

Subject
Chemical engineering. (118)
Polymers. (28)
Catalysts. (25)
Membranes (Technology). (18)
Chemical Engineering. (17)

Date Issued
1964 - 1979 (228)
1980 - 1999 (283)
2000 - 2019 (499)
2020 - 2022 (21)

Item Type
Master Thesis (913)
Ph.D. Thesis (119)

Recent Submissions

Liquid crystal-based microcapillary sensors Kurt, Elif; Büküşoğlu, Emre; Department of Chemical Engineering (2022-1-21) Stimuli-responsive properties of liquid crystals (LCs), when combined with their optical properties, offer sensitive and rapid sensing applications. In the first part of this thesis study, we propose and demonstrate a micr...
Experimental characterizations of the response of nematic liquid crystal droplets upon adsorption of nanoparticles from aqueous media Şengül, Selin; Büküşoğlu, Emre; Aydoğan, Nihal; Department of Chemical Engineering (2021-9-08) Nematic liquid crystal (LC) droplets have been widely used for the detection of molecular species. In this study, we investigated the response of micrometer sized nematic LC droplets against the adsorption of nanoparticles...
Modeling kinetics and thermodynamics of amine based fuel and oxidizer interactions Özkan Özer, Melike; Üner, Deniz; Aviyente, Viktorya; Department of Chemical Engineering (2021-9) This study is conducted to develop a model for the parameters that determine the ignition delay time during hypergolic combustion of liquid bipropellants in rocket engines. Hypergolic combustion utilizes the heat of mixi...
Micellar enhanced ultrafiltration with nonionic surfactants (MEUF) Çağlar, Toprak; Çulfaz Emecen, Pınar Zeynep; Yılmaz, Levent; Department of Chemical Engineering (2021-9) Butanol is a versatile chemical used in many different fields such as electronics, cosmetics, and textiles, and the synthesis of many other chemicals. In fermentative butanol production, in addition to butanol; acetone a...
Effects of metabolic engineering of ethanol utilization pathway in Pichia pastoris on recombinant protein production and transcription levels in central metabolism Dayankaç , İdil; Çalık, Pınar; Özdamar, Tunçer H.; Department of Chemical Engineering (2021-9) The aim of this MSc thesis is to increase the ethanol uptake rate and decrease by-product formation in the ethanol utilization (EUT) pathway and acquire a smoothly operating intracellular reaction network in the target mic...
Solvent recovery from photolithography waste using cellulose ultrafiltration membranes Savaş Alkan, Aygen; Çulfaz Emecen, Pınar Zeynep; Department of Chemical Engineering (2021-8) Cellulose flat sheet ultrafiltration membranes were fabricated for the investigation of their separation performance in Organic Solvent Ultrafiltration (OSU) applications and for the solvent recovery from photolithography ...
Development of carbon fabric-reinforced polylactic acid/acrylonitrile butadiene styrene multilayer composites Öztürk, İrem; Bayram, Göknur; Department of Chemical Engineering (2021-8) Multilayer composites are in concern of both world of material science and the industry because of providing enhanced mechanical properties with ultra lightweight. Also, there is a growing demand to use of recyclable, biod...
Development of three way catalytic converter for automotive exhaust gas Bayram, Bilal; Külah, Görkem; Önal, Işık; Department of Chemical Engineering (2021-7-9) In this study, a novel perovskite-based three-way catalyst (LaFe0.57Co0.37Pd0.06O3/Ce0.8Zr0.2O2/Al2O3) with high performance, thermal stability and SO2 poisoning resistance was developed. The performance of the developed c...
Analysis of velocity profiles in concentrated solid-liquid mixtures using ultrasound doppler velocimetry Taşkın, Ahmet Fırat; Ayrancı Tansık, İnci; Uludağ, Yusuf; Department of Chemical Engineering (2021-7) Stirred tanks are widely used for a variety of processes in industry such as solid dispersion, crystallization and dissolution processes. Several parameters are used to optimize these stirred tank processes such as impelle...
The effect of solids concentration and particle properties on cloud height in tall stirred tanks Altıntaş, Ezgi; Ayrancı Tansık, İnci; Department of Chemical Engineering (2021-6) Solid-liquid mixing is one of the most commonly used unit operations in industries such as petrochemicals, polymer processing, biotechnology, pharmaceuticals, and mineral processing. There are two focuses in solid-liquid m...
Hydrogen production via steam reforming of glycerol Göktürk, Sevil; Sezgi, Naime Aslı; Department of Chemical Engineering (2021-2-12) Today, intensive studies are carried out on alternative energy sources that will replace fossil fuels due to its limited sources, soaring of prices and negative effects on people and environment. Hydrogen energy offers a s...
Gas mixing in conical spouted beds Doğan, Neslin; Külah, Görkem; Department of Chemical Engineering (2020-12-28) Conical spouted beds are relatively new generation gas-solid flow reactors used in various applications such as drying, catalytic polymerization, treatment of wastes, particle coating and chemical vapor deposition due to t...
Polystyrene-based and carbon fabrİc-reİnforced polymer composİtes containing carbon nanotubes: preparation,modification and characterization Erkmen, Berrak; Bayram, Göknur; Department of Chemical Engineering (2020-11-23) Carbon Fabric-Reinforced Polymers (CFRPs) attract attention due to their high mechanical properties, electrical conductivity, and providing weight reduction solutions in aerospace, automotive, marine, and energy industries...
Membrane fabrication using nanocrystalline cellulose Volkan, Ecem; Çulfaz Emecen, Pınar Zeynep; Department of Chemical Engineering (2020-10-13) Cellulose is a biopolymer which is resistant to many solvents due to inter- and intramolecular hydrogen bonds; also, it is hydrophilic and resistant to fouling, which makes cellulose attractive for membrane applications in...
Modification of pebax and zif-8/pebax membranes by additional solvent treatment to improve co2/n2 separation performance Alsuhile, Ala Abdulalem Abdo Moqbel; Kalıpçılar, Halil; Büküşoğlu, Emre; Department of Chemical Engineering (2020-9) Capturing carbon dioxide is currently one of the most attractive research areas due to the serious problems that CO2 emission creates for the environment. The main aim of this work is to utilize cheap and environmentally...
Multifunctional properties of polymer foams and composites Özkutlu Demirel, Merve; Bayram, Göknur; Department of Chemical Engineering (2020-9) Polymer foams are low-density materials that consist of solid and gas phases and are used for insulation and transportation applications. This study aims to produce poly(methyl methacrylate) (PMMA) foams with low density a...
Synthesis and characterization of sensor microparticles templated from cholesteric liquid crystals Avşar, Deniz Işınsu; Büküşoğlu, Emre; Department of Chemical Engineering (2020-9) Structural coloring in nature, especially the crystalline ordering and responsive characteristics of those found in chameleon skins has inspired us to fabricate artificial photonic materials for sensor applications. In the...
Elucidating the role of adsorbed states of hydrogen, water and carbon dioxide over TiO2 and Pd/TiO2 Yılmaz, Begü; Üner, Deniz; Department of Chemical Engineering (2020) Artificial photosynthesis studies aim to utilize solar energy for conversion of CO2 into valuable organics using H2O; however, developments in the area are far from realistic level applications due to the low production ra...
Control of spring-mass running through virtual tuning of leg damping Seçer, Görkem; Saranlı, Uluç; Department of Chemical Engineering (2020) Spring-mass models have been very successful in both describing and generating running behaviors. In this regard, the Spring-Loaded Inverted Pendulum (SLIP) is a useful model to represent hybrid dynamics of both natural an...
Synthesis of mesoporous [Al]-[B]-ZSM-5, -SSZ-13 AND -SSZ-39 for methanol to olefins process Karakaya Yalçın, Büşra; İpek Torun, Bahar; Department of Chemical Engineering (2020) Light olefins such as ethylene and propylene are important building blocks for modern chemistry. Traditionally they are produced from steam cracking and fluid catalytic cracking (FCC), which are energy intensive and give l...

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