Yazar "Anadolu Üniversitesi, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü" için Makale Koleksiyonu listeleme
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Catalytic pyrolysis of perennial shrub, Euphorbia rigida in the water vapour atmosphere
Ateş, Funda; Pütün, Ayşe Eren; Pütün, Ersan (Elsevier Science BV, 2005)In this study, the perennial shrub Euphorbia rigida, was used as biomass sample for catalytic pyrolysis using Co-Mo commercial catalyst (Criterion-534) in the water vapour atmosphere. Experimental studies were conducted ... -
Catalytic pyrolysis of waste furniture sawdust for bio-oil production
Uzun, Başak Burcu; Kanmaz, gülin (SAGE Publications LTD, 2014)In this study, the catalytic pyrolysis of waste furniture sawdust in the presence of ZSM-5, H-Y and MCM-41 (10 wt % of the biomass sample) was carried out in order to increase the quality of the liquid product at the various ... -
Catalytic upgrading of pyrolysis vapours: Effect of catalyst support and metal type on phenolic content of bio-oil
Yaman, Elif; Yargic, Adife Seyda; Özbay Nurgül; Uzun, Başak Burcu; Kalogiannis, Konstantinos G.; Stefanidis, Stylianos D.; Lappas, Angelos A. (Elsevier Sci LTD, 2018)Bio-oil from low-cost and renewable lignocellulosic biomass is a complex mixture of organic compounds and water. It is necessary to selectively control the biomass pyrolysis pathways to obtain specific bio-oils rich in ... -
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 ... -
Characterization of Chars from Steam Pyrolysis of Apricot Pulp
Özbay Nurgül; Pütün, Ayşe Eren (Taylor & Francis Inc, 2011)The characterization of apricot pulp char obtained from steam pyrolysis was studied. The char was prepared by pyrolyzing apricot pulp temperatures ranging from 300 to 700 degrees C under steam atmospheres. The chemical ... -
Characterization of the pyrolysis oil produced in the slow pyrolysis of sunflower-extracted bagasse
Yorgun, S; Şensöz, S; Koçkar, Ömer Mete (Pergamon-Elsevier Science LTD, 2001)Sunflower (Helianthus annus L.)-extracted bagasse pyrolysis experiments were performed in a fixed-bed reactor. The effects of heating rate, final pyrolysis temperature, particle size and pyrolysis atmosphere on the pyrolysis ... -
Chemical composition and oxidative stability of flax, safflower and poppy seed and seed oils
Bozan, Berrin; Temelli, Feral (Elsevier Sci LTD, 2008)Three seeds of Turkish origin, flax, poppy and safflower were analyzed for their proximate, fatty acids, tocols (tocopherols and tocotrienols) and total phenolic composition, and oxidative stability of their oil. The major ... -
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. ... -
Co-pyrolytic behaviors of biomass and polystyrene: Kinetics, thermodynamics and evolved gas analysis
Özsin, Gamzenur; Pütün, Ayşe Eren (Korean Institute Chemical Engineers, 2018)The pyrolytic degradation mechanism of chestnut shell (CNS) and its blend with waste polystyrene (PS) were investigated. Individual pyrolysis behavior of samples obtained separately was compared with those of the blends ... -
Combined effect of a plasticizer and carvacrol and thymol on the mechanical, thermal, morphological properties of poly(lactic acid)
Çelebi, Hande; Güneş, Elif (Wiley, 2018)In this study, the effects of the monotherpenic phenol concentration on the properties of biocomposites containing plasticized poly(lactic acid) (PLA) with acetyl tributyl citrate (ATBC) were investigated. The monotherpenic ... -
Comparative analysis of pyrolysis oils and its subfractions under different atmospheric conditions
Özbay Nurgül; Uzun, Başak Burcu; Varol, Esin Apaydın; Pütün, Ayşe Eren (Elsevier Science BV, 2006)In this paper comparative analysis of bio-oils and their subtraction from static, sweeping gas and steam pyrolysis of apricot pulp, a food industry waste, was investigated. Experimental studies were conducted in a well-swept ... -
A Comparative Characterization of the HPA-MCM-48 Type Catalysts Produced by the Direct Hydrothermal and Room Temperature Synthesis Methods
Güçbilmez, Yeşim; Yargic, A. S.; Çalış, İbrahim (Hindawi LTD, 2012)MCM-48 type support materials synthesized by the direct hydrothermal synthesis (HTS) and room temperature synthesis (RTS) methods were incorporated with tungstophosphoric acid (TPA) in the range of 10-40 wt% by using a wet ... -
Comparative studies on adsorptive removal of heavy metal ions by biosorbent, bio-char and activated carbon obtained from low cost agro-residue
Kırbıyık, Cisem; Pütün, Ayşe Eren; Pütün, Ersan (Iwa Publishing, 2016)In this study, Fe(III) and Cr(III) metal ion adsorption processes were carried out with three adsorbents in batch experiments and their adsorption performance was compared. These adsorbents were sesame stalk without ... -
A Comparative Study on Characterization of 12-Tungstophosphoric Acid Cesium Salt Depending on Synthesis Methods
Akbay, Elif Ödeş; Demir, gülberk (Asian Journal Of Chemistry, 2014)12-Tungstophosphoric acid cesium salt, Cs2.5H0.5PW12O40, exhibits high catalytic activity for various kinds Of acid-catalyzed reactions. This excellent catalytic effect of Cs2.5H0.5PW12O40 is attributed to its strong acidity ... -
A comparative study on co-pyrolysis of lignocellulosic biomass with polyethylene terephthalate, polystyrene, and polyvinyl chloride: Synergistic effects and product characteristics
Özsin, Gamzenur; Pütün, Ayşe Eren (Elsevier Sci LTD, 2018)Co-pyrolysis of waste biomass and plastics was investigated to find out whether the quality of pyrolysis products was improved. For the sake of yield and compositional comparison, three polymers (polyethylene terephthalate, ... -
Comparision of real waste (MSW and MPW) pyrolysis in batch reactor over different catalysts. Part I: Product yields, gas and pyrolysis oil properties
Ateş, Funda; Miskolczi, Norbert; Borsodi, Nikolett (Elsevier Sci LTD, 2013)Pyrolysis of municipal solid waste (MSW) and municipal plastic waste (MPW) have been investigated in batch reactor at 500, 550 and 600 degrees C both in absence and presence of catalysts (Y-zeolite, beta-zeolite, equilibrium ... -
Comparison between the "slow" and "fast" pyrolysis of tobacco residue
Pütün, Ayşe Eren; önal, Eylem; Uzun, Başak Burcu; Özbay Nurgül (Elsevier Science BV, 2007)In this study, the trends in yields and product compositions of slow pyrolysis and fast pyrolysis were determined and compared with each other. Slow pyrolysis of tobacco residues with particles of between 0.425 and 0.850 ... -
Comparison of real waste (MSW and MPW) pyrolysis in batch reactor over different catalysts. Part II: Contaminants, char and pyrolysis oil properties
Miskolczi, Norbert; Ateş, Funda; Borsodi, Nikolett (Elsevier Sci LTD, 2013)Pyrolysis of real wastes (MPW and MSW) has been investigated at 500 degrees C, 550 degrees C and 600 degrees C using Y-zeolite, beta-zeolite, equilibrium FCC, MoO3, Ni-Mo-catalyst, HZSM-5 and Al(OH)(3) as catalysts. The ... -
Comparison of the generation of oil by the extraction and the hydropyrolysis of biomass
Onay, Özlem; Gaines, AF; Koçkar, Ömer Mete; Adams, M; Tyagi, TR; Snape, CE (Elsevier Sci LTD, 2006)This paper discusses the maximisation of the yields of useful bio-oils generated from seeds and nut-shells both by extraction and by hydropyrolysis. The formation and the composition of the bio-oils are also discussed. ... -
Converting of oil shale and biomass into liquid hydrocarbons via pyrolysis
Kılıç, Murat; Pütün, Ayşe Eren; Uzun, Başak Burcu; Pütün, Ersan (Pergamon-Elsevier Science LTD, 2014)In this study, co-pyrolytic behaviors of oil shale and Euphorbia rigida were investigated at different temperatures in a fixed bed reactor at 450, 500, and 550 degrees C with a heating rate of 10 degrees C/min in the ...