Yazar "Mühendislik ve Doğa Bilimleri Fakültesi -- Petrol ve Doğalgaz Mühendisliği Bölümü" için listeleme
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Adsorption of Cr(VI) onto cross-linked chitosan-almond shell biochars: equilibrium, kinetic, and thermodynamic studies
Altun, Türkan; Ecevit, Hüseyin; Kar, Yakup; Çiftçi, Birsen (Springer, 2021)In this study, to remove Cr(VI) from the solution environment by adsorption, the almond shell was pyrolyzed at 400 and 500 degrees C and turned into biochar (ASC400 and ASC500) and composite adsorbents were obtained by ... -
Analysis of various flow field designs for PEM fuel cells used in vehicular systems through 3D modelling
Toprak, Muhammed Mücahid; Kök, Ceyda; Mert, Suha Orçun (MIM Research Group, 2022)The importance of green energy has increased in recent years. Vehicles that don't run on fossil fuels and have zero CO2 emissions are on the agenda of many developed countries. Battery-based vehicles have long charge times ... -
Application of blast furnace slag as a catalyst for catalytic cracking of used frying sunflower oil
Kar, Yakup; Gürbüz, Zafer (Sage Publications, 2016)For catalyst performance assessment of blast furnace slag as a low-cost catalyst, the cracking runs of frying sunflower oil were carried out in the presence of two different catalysts (blast furnace slag and calcium oxide) ... -
An Artificial Neural Network Approach for the Prediction of Water-Based Drilling Fluid Rheological Behaviour
Avcı, Emine (2018)It is well known that high temperatures, which change the rheological properties of the drillingfluid and can frequently cause problems in deep wells, is a major problem during drilling. Theimportance of the estimation and ... -
Biochar Produced from Co-Pyrolysis of Olive Pomace & Crude Oil as an Adsorbent for Cr (VI) Removal from Aqueous Solutions
Almezgagi, Maha; Kaya, Gülcihan Güzel; Kar, Yakup; Devci, Hüseyin (Iranian Institute of Research and Development in Chemical Industries, 2022)This study investigated aqueous solution treatment to remove Cr (VI) using a biochar-based adsorbent. Olive pomace and crude oil were used to synthesize the biochar adsorbent via co-pyrolysis for the first time. The biochar ... -
Biogenic (β-fabric) features in the hard laminated crusts of the Mersin and Adana regions, southern Turkey and the role of soil organisms in the formation of the calcrete profiles
Eren, Muhsin; Kaplan, Meryem Yeşilot; Kadir, Selahattin; Kapur, Selim (Elsevier Science, 2018)This paper describes beta-fabric features and their distribution in the calcretes, and emphasizes the role of soil organisms in the formation of the calcrete profiles. Quaternary calcretes are common in the Mersin and Adana ... -
Bor İçerikli Atık Killerin Sondaj Çamurlarında Kullanımı
Vapur, Hüseyin; Kök, Onur Eser; Erdoğan, Yasin (Bor Dergisi, 2021)Bu çalışmada, Eskişehir ili Kırka ilçesinden temin edilen bor işletme tesisi proses katı atıklarının (PKA) sondaj çamurlarında kullanılabilirliği araştırılmıştır. Çalışma kapsamında Amerikan Petrol Enstitüsü (API) Spec. ... -
Catalytic cracking of gas oil derived from heavy crude oil over biochar-based catalyst
Kar, Yakup; Kök, Onur Eser (National Institute of Science Communication and Policy Research, 2023)In this study, the main target is to obtain high grade light commercial motor fuels from the catalytic cracking of the gas oil fraction by using a modified green catalyst biochar. For this aim, initially the biochar has ... -
Catalytic cracking of pyrolytic oil by using bentonite clay for green liquid hydrocarbon fuels production
Kar, Yakup (Elsevier, 2018)The pyrolysis of almond shell as a biomass feedstock was performed in order to obtain a bio-based feedstock for bio-refineries in a fixed-bed reactor under inert atmosphere (occurred by N-2 gas) at certain experimental ... -
Catalytic pyrolysis of lignite with clay catalyst activated with spent pickling liquor
Kar, Yakup; Mert, Bayram Ali (Wiley, 2023)Spent pickling liquor (SPL) is an acidic waste with rich iron content from the stainless steel production industry. Reusability of SPL as a catalytic activity promoter in bentonite clay is crucial for the catalytic pyrolysis ... -
Characterization and evaluation of the antimicrobial properties of algal alginate; a potential natural protective for cosmetics
Sayın, Selin; Depci, Tolga; Naz, Mehmet; Sezer, Selda; Karaaslan, Merve Gökşin; Aras, Aycan; Uğur, Sinem; Çetin, Zafer; Saygılı, Eyüp İlker; Ateş, Burhan (Marmara University, 2022)Sargassurn vulgare was sampled by free dives in Iskenderun Bay, Hatay, Turkey, in September 2018. Sargassum vulgare is a material with high economic value because it has compounds that can be used in medical applications ... -
Characterization of thermoluminescence kinetic parameters of beta irradiated B doped Ca5(PO4)3OH powder obtained from eggshell
Depci, Tolga; Oğlakçı, Mehmet; Selda, Sezer; Yücel, Ayşegül; Doğan, Tamer; Souadi, Galib O.; Topaksu, Mustafa; Can, Nurdoğan (Elsevier, 2021)In this study, we have synthesized B doped Ca5(PO4)3OH (HAP) by a sonication chemical method. The thermoluminescence (TL) properties of the family of synthesized samples (B doped Ca5(PO4)3OH (HAP) were investigated using ... -
Co-liquefaction process olive bagasse and peat with lignite and the effect of biomasses on the products and oil yield
Depci, Tolga; Karta, Mesut; Karaca, Hüseyin (Elsevier, 2018)In the present study, instead of the burning the Elbistan lignite (L) having low calorific value and the biomasses (Balikesir Olive Bagasse "OB" and Adiyaman peat "P"), co-liquefaction process was conducted in order to ... -
CO2-induced mechanical behaviour of Hawkesbury sandstone in the Gosford basin: An experimental study
Rathnaweera, Tharaka Dilanka; Ranjith, Pathegama Gamage; Perera, Samintha; Haque, Asadul; Lashin, Aref; Al Arifi, Nassir; Chandrasekharam, Dornadula; Yang, Sheng-Qi; Xu, Tao; Wang, Shu Hong; Yaşar, Ergül (Elsevier, 2015)Carbon dioxide (CO2) sequestered in saline aquifers undergoes a variety of chemically-coupled mechanical effects, which may cause CO2-induced mechanical changes and time-dependent reservoir deformation. This paper investigates ... -
Comparison of stable isotope values of Quaternary calcretes from Adana and Mersin provinces: implications on controlling factors
Eren, Muhsin; Yeşilot Kaplan, Meryem; Kadir, Selahattin; Kapur, Selim (Scientific Technical Research Council Turkey-Tubitak, 2019)Calcretes are widespread in Adana and Mersin provinces and form under different morphologies. Most calcrete profiles comprise a hard laminated crust/hardpan at the top, gradually intergrading into the nodular and/or ... -
A Comprehensive Study on Fuel Adulteration Sensing by Using Triple Ring Resonator Type Metamaterial
Bakır, Mehmet; Dalgaç, Şekip; Karaaslan, Muharrem; Karadağ, Faruk; Akgöl, Oğuzhan; Ünal, Emin; Depci, Tolga; Sabah, Cumali (Electrochemical Society Inc., 2019)A novel shaped metamaterial sensor application which is designed to operate in X band is proposed. A new sample holder for easy operation is designed and placed just behind the proposed structure in X band. Since the ... -
A Computer Program for Practical Semivariogram Modeling and Ordinary Kriging: A Case Study of Porosity Distribution in an Oil Field
Mert, Bayram Ali; Dağ, Ahmet (De Gruyter Poland SP Zoo, 2017)In this study, firstly, a practical and educational geostatistical program (JeoStat) was developed, and then example analysis of porosity parameter distribution, using oilfield data, was presented. With this program, two ... -
Cost Analysis of Inhibitive Drilling Fluids
Yalman, Emine; Federer-Kovacs, Gabriella; Depci, Tolga (International journal of energy studies, 2021)The main objective of this study is to provide a better understanding of inhibitive water-based drilling fluid's central cost drivers. In this study a comparison of costs is provided between two polymer drilling fluid ... -
Detailed low temperature studies on thermoelectric performance of K-doped Bi2Ca2Co2Oy ceramics fibers
Özçelik, Can; Depci, Tolga; Çetin, Gizem; Gürsul, Mehmet; Özçelik, Bekir; Madre, María Antonieta; Sotelo, Andrés; Ando, Hiroshi; Terashima, Kensei; Takano, Yoshihiko (Institute of Physics, 2022)The effect of K substitution for Ca in Bi2Ca2-xKxCo2Oy (x = 0.0, 0.05, 0.075, 0.10, and 0.125) thermoelectric ceramics, produced via laser floating zone (LFZ) method, have been systematically investigated. XRD patterns are ... -
Determination of Heavy Metal Concentrations in Agricultural Lands of Amik Plain with MP-AES
Özkan, Abdullah; Uygur, Veli (Parlar Scientific Publications, 2019)Heavy metal concentration in soils is crucial for environmental quality and agricultural ecosystems' health. Intensive agricultural practices and changing land use can induce their availability and mobility in agricultural ...