Yazar "Apaydın-Varol, Esin" için listeleme
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Adsorptive removal of phenol from aqueous solutions on activated carbon prepared from tobacco residues: Equilibrium, kinetics and thermodynamics
Kılıç, Murat; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Elsevier Science BV, 2011)This study consists of producing high surface area activated carbon from tobacco residues by chemical activation and its behavior of phenol removal from aqueous solutions. K(2)CO(3) and KOH were used as chemical activation ... -
Bio-oil from olive oil industry wastes: Pyrolysis of olive residue under different conditions
Pütün, Ayşe Eren; Uzun, Başak Burcu; Apaydın-Varol, Esin; Pütün, Ersan (Elsevier Science BV, 2005)Olive residues were pyrolysed in a fixed bed reactor under different pyrolysis conditions to determine the role of final temperature, sweeping gas flow rate and steam velocity on the product yields and liquid product ... -
Biochar for climate change mitigation: Tracing the in-situ priming effect on a forest site
Bruckman, Viktor J.; Terada, Toru; Uzun, Başak Burcu; Apaydın-Varol, Esin; Liu, Jay (Elsevier Science BV, 2015)A significant amount of Carbon (C) on global soils consists of black carbon or charred organic matter. Biochar amendment in soils is therefore seen as a potential geoengineering method for climate change mitigation and ... -
Biosorption Behaviour of an Arid Land Plant, Euphorbia rigida, Towards to Heavy Metals: Equilibrium, Kinetic and Thermodynamic Studies
T he potential of an arid-land plant, Euphorbia rigida (E. rigida), for the removal of heavy metals [Pb(II), Zn(II), Cu(II), Cd(II), Ni(II)] from aqueous solutions was studied in the current work. Batch sorption experiments ... -
Characterization of bio-oil obtained from fruit pulp pyrolysis
ÖzbAy, Nuran; Apaydın-Varol, Esin; Burcu, Uzun, B.; Pütün, Ayşe Eren (Elsevier Ltd, 2008)Apricot pulps was pyrolyzed in a fixed-bed reactor under different pyrolysis conditions to determine the role of final temperature, sweeping gas flow rate and steam velocity on the product yields and liquid product composition ... -
Chemically activated carbon production from agricultural waste of chickpea and its application for heavy metal adsorption: equilibrium, kinetic, and thermodynamic studies
Özsin, Gamzenur; Kılıç, Murat; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Springer Heidelberg, 2019)The purpose of this study was to produce activated carbons (ACs) from chickpea (Cicer arietinum) husks by chemical activation (KOH and K2CO3) and to examine their feasibility in removing heavy metals from aqueous solutions. ... -
Equilibrium, Thermodynamic, and Kinetic Studies for the Adsorption of Cadmium(II) Ions onto Activated Carbon Prepared from Euphorbia rigida by Chemical Activation
Kılıç, M.; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Taylor & Francis Inc, 2014)Equilibrium, thermodynamic, and kinetic studies were carried out for the adsorption of cadmium(II) ions from aqueous solution using high surface area (2,613 m(2)/g) microporous activated carbon prepared from Euphorbia ... -
Optimization of Biodiesel Production and Fuel Properties of Blends
Uzun, Başak Burcu; Kılıç, Murat; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Taylor & Francis Inc, 2014)In this study, optimization of essential parameters, such as reaction time, reaction temperature, methanol/oil molar ratio, catalyst amount, and type of biodiesel production via transesterification, were investigated. The ... -
Preparation and surface characterization of activated carbons from Euphorbia rigida by chemical activation with ZnCl2, K2CO3, NaOH and H3PO4
Kılıç, Murat; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Elsevier Science BV, 2012)Preparation of activated carbons from Euphorbia rigida by chemical activation with different impregnation agents and ratios was studied. ZnCl2, K2CO3, NaOH and H3PO4 were used as chemical activation agents and four ... -
Pyrolysis and Catalytic Upgrading of Lignocellulosic Biomass Using Metal Loaded Zsm-5 Zeolite
Saraçoğlu, Elif; Apaydın-Varol, Esin; Uzun, Başak Burcu (Eta-Florence Renewable Energies, 2016)The present study is aimed to catalytic upgrading of bio-oil obtained from beech wood sawdust pyrolysis over metal-loaded ZSM-5 zeolites. Ni modified ZSM-5 zeolites synthesized with varying metal loading ratios (1-10 wt. ... -
Synthetic fuel production from tea waste: Characterisation of bio-oil and bio-char
Uzun, Başak Burcu; Apaydın-Varol, Esin; Ateş, Funda; Özbay Nurgül; Pütün, Ayşe Eren (Elsevier Sci LTD, 2010)The pyrolysis of tea waste was studied for determining the main characteristics and quantities of liquid and solid products. Particular investigated process variables were temperature (673-973 K), heating rate (5-700 K min ... -
Thermal decomposition behavior of tobacco stem Part I: TGA-FTIR-MS analysis
Polat, Sevgi; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Taylor & Francis Inc, 2016)In the present study, the thermal degradation behavior of tobacco stem was examined by means of a thermogravimetric analyzer (TGA) under nitrogen atmosphere at temperature range of 25-1,000 degrees C. The TG curve indicated ... -
Thermal decomposition behavior of tobacco stem Part II: Kinetic analysis
Polat, Sevgi; Apaydın-Varol, Esin; Pütün, Ayşe Eren (Taylor & Francis Inc, 2016)As a continuation of the previous study on the thermal degradation behavior of tobacco stem, this work is focused on the kinetics of pyrolytic decomposition. Thermogravimetric analysis of tobacco stem samples was conducted ... -
Upgrading of fast pyrolysis bio-oil over Fe modified ZSM-5 catalyst to enhance the formation of phenolic compounds
Saraçoğlu, Elif; Uzun, Başak Burcu; Apaydın-Varol, Esin (Pergamon-Elsevier Science LTD, 2017)The present study is aimed to investigate the upgrading of beech sawdust pyrolysis bio-oil through catalytic cracking of its vapors over Fe-modified ZSM-5 zeolite in a fixed bed tubular reactor. The zeolite supported iron ...
