Search Results - "Degirmenci, Levent"

Catalytic performance of silica covered bimetallic nickel-iron encapsulated core-shell microspheres for hydrogen production by Gunduz-Meric, Gamze, Kaytakoglu, Suleyman, Degirmenci, Levent

“…Supported nickel-iron catalysts with core/shell structures (Ni,Fe/SiO2, and Ni/SiO2, Fe (Imp.)) were synthesized by sol-gel microencapsulation and sol-gel…”
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Coke minimization via SiC formation in dry reforming of methane conducted in the presence of Ni-based core–shell microsphere catalysts by Gunduz Meric, Gamze, Arbag, Huseyin, Degirmenci, Levent

“…Mesoporous Ni/Si microsphere catalysts were synthesized with a modified sol–gel microencapsulation method and their activity was tested in dry reforming of…”
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Ni,Co/SiO2 and Ni/SiO2,Co bimetallic microsphere catalysts indicating high activity and stability in the dry reforming of methane by Gunduz-Meric, Gamze, Kaytakoglu, Suleyman, Degirmenci, Levent

“…Two separate synthesis procedures were applied to alter the location of Cobalt (Co) in bimetallic silica (SiO 2 ) microsphere catalyst with Nickel (Ni) as the…”
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Validation of Consecutive Coke and SiC Formation on Ni Core–Shell Microspheres During Methane Decomposition by Gunduz Meric, Gamze, Degirmenci, Levent

“…Nickel based MCM-41(Ni/MCM-41) and silica microsphere (Ni/SiO 2 ) were synthesized and tested against consecutive coke deposition and SiC formation in a model…”
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Effect of Micromonospora sp. KSC08 on nitrogen conservation throughout composting by Kumas, Ayten, Ertekin, Saadet Gizem, Gurbanov, Rafig, Simsek, Yunus Emre, Kocak, Fadime Ozdemir, Degirmenci, Levent

“…Composting includes a series of reactions resulting in alterations on organic content and nitrogen amount. NH 3 volatilization via ammonification and N 2 and N…”
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Synthesis of a silicotungstic acid SBA-15 catalyst for selective monoglyceride production by Simsek, Veli, Degirmenci, Levent, Murtezaoglu, Kırali

“…The esterification reaction between glycerol and lauric acid was conducted in the presence of commercial Amberlyst IR-120 and synthesized silicotungstic acid…”
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Sustainable activity of hydrothermally synthesized mesoporous silicates in acetic acid esterification by ŞİMŞEK, VELİ, DEĞİRMENCİ, LEVENT, MÜRTEZAOĞLU, KIRALİ

“…A hydrothermal method was applied in the synthesis of mesoporous silicates containing silicotungstic acid (STA). The synthesis procedures were developed by…”
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Clarification of Stevia rebaudiana Bertoni extract by Ca based silica microspheres by Meric, Gamze Gunduz, Gegic, Fatih, Leblebici, Sema, Gungor, Sifanur, Degirmenci, Levent

“…Pre-treated Stevia rebaudiana Bertoni extract was clarified via using calcium (Ca) based silica (Si) microspheres. Both adsorption and chemical treatment were…”
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Microencapsulation of Silicotungstic Acid To Retain Catalytic Activity by Degirmenci, Levent, Orbey, Nese

“…Microencapsulation is used as a means to retain the activity of silicotungstic acid (STA), an industrially important catalyst, during repeated use in ethyl…”
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Extreme Processing Conditions Applied in Selection of Different Microorganisms Utilized as Compost Enhancers by Fadime ÖZDEMİR KOÇAK, Levent DEĞİRMENCİ

“…Present study included isolation of microorganisms during the mesophilic stage of composting and their reuse in compost mixture to enhance organic matter…”
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Steam reforming of acetic acid in the presence of Ni coated with SiO2 microsphere catalysts by Ozel, Sahika, Meric, Gamze Gündüz, Arbag, Huseyin, Degirmenci, Levent, Oktar, Nuray

“…Steam reforming of acetic acid was investigated in the presence of Ni@SiO2 microsphere catalysts. The effects of Ni loading, H2O/AcOH ratio, and temperature on…”
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Effect of Atmosphere and Temperature Treatment on Leoanardite for Increasing Humic Acid Yield by Simsek, Yunus Emre, Degirmenci, Levent

“…Humic acid is a complex molecule including carboxylic, phenolic, alcoholic, and carbonyl fractions in its structure. Addition of this complex structure in soil…”
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Simulatenous evaluation of composting experiments and metagenome analyses to illuminate the effect of Streptomyces spp. on organic matter degradation by Kocak, Fadime Ozdemir, Tanir, Saadet Gizem Ertekin, Cetin, Ayten Kumas, Degirmenci, Levent

“…The effect of Streptomyces spp. on organic matter degradation was investigated in the present study. Streptomyces spp. isolated from compost systems were…”
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Correction: Simulatenous evaluation of composting experiments and metagenome analyses to illuminate the effect of Streptomyces spp. on organic matter degradation by Kocak, Fadime Ozdemir, Tanir, Saadet Gizem Ertekin, Cetin, Ayten Kumas, Degirmenci, Levent

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Activated carbon supported silicotungstic acid catalysts for ethyl-tert-butyl ether synthesis by Degirmenci, Levent, Oktar, Nuray, Dogu, Gulsen

“…Vapor phase ethyl‐tert‐butyl ether (ETBE) production was conducted in the presence of Cesium salts of silicotungstic acid (Cs‐STA), activated carbon supported…”
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ETBE synthesis over silicotungstic acid and tungstophosphoric acid catalysts calcined at different temperatures by Degirmenci, Levent, Oktar, Nuray, Dogu, Gulsen

“…Vapor phase ethyl tertiary butyl ether synthesis was investigated using heat treated heteropoly acid catalysts, namely silicotungtsic acid (STA) and…”
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Product Distributions in Ethyl tert-Butyl Ether Synthesis over Different Solid Acid Catalysts by Degirmenci, Levent, Oktar, Nuray, Dogu, Gulsen

“…Vapor-phase ethyl tert-butyl ether (ETBE) synthesis was carried out in a fixed-bed flow reactor in the presence of three different kinds of heteropolyacid…”
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Silika İle Mikroenkapsüle Edilmiş Fe2o3 İçerikli Kürelerin Üretim Prosesinin İyileştirilmesi Ve Katalitik Aktivitelerinin Belirlenmesi by Gündüz,Gamze, Değirmenci,Levent

“…Mikro kürelerin sentezinde izlenen ve ısıl muamele, kalsinasyon ve yüzey aktif madde kullanımı gibi pek çok basamak içeren sentez prosedürleri endüstriyel…”
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Effect of Heating Rate and Particle Size on the Pyrolysis of Goynuk Oil Shale by Deirmenci, Levent, Durusoy, Tulay

“…Pyrolysis kinetics of (-210 + 149), (-250 + 210) and (-420 + 250) m particle size Goynuk oil shale was investigated under non-isothermal conditions with a…”
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Buhar Fazında Etil Tersiyer Bütil Eter (Etbe) Sentezinde Kullanılan Polihema Bazlı Silikotungstik Asit Katalizörler by Oktar,Nuray, Değirmenci,Levent

“…PoliHEMA-Silikotungstik asit katalizörlerin (PH-STA) aktivitesi buhar fazında, 353-373K sıcaklık aralığında, isobüten/etanol (IB/EtOH) mol oranının 0,17 olduğu…”
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