Yazar "Pütün, Ayşe Eren" için listeleme
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Rapid Pyrolysis of Olive Residue. 2. Effect of Catalytic Upgrading of Pyrolysis Vapors in a Two-Stage Fixed-Bed Reactor
Pütün, Ersan; Uzun, Başak Burcu; Pütün, Ayşe Eren (American Chemical Society, 2009)The upgrading of the rapid pyrolysis vapors was performed using various catalysts (clinoptilolite (a natural zeolite, NZ), ZSM-5, H-Y) with catalyst/feed ratios of 0.05, 0.1, 0.15, 0.20, and 0.25 in the catalyst bed ... -
Removal of copper(II) and cadmium(II) ions from aqueous solutions by biosorption onto pine cone
Degirmen, Görkem; Kılıç, Murat; Cepelioğullar, Özge; Pütün, Ayşe Eren (Iwa Publishing, 2012)In this study, the removal of copper(II) and cadmium(II) ions from aqueous solutions by biosorption onto pine cone was studied. Variables that affect the biosorption process such as pH, biosorbent dosage, initial metal ion ... -
Rice straw as a bio-oil source via pyrolysis and steam pyrolysis
Pütün, Ayşe Eren; Apaydın, Elif; Pütün, Ersan (Pergamon-Elsevier Science LTD, 2004)The pyrolysis of rice straw was studied to estimate the effect of pyrolysis conditions on product yields and bio-oil composition when the heating rate was 5 K/min. Pyrolysis temperature, particle size, sweeping gas flow ... -
Slow pyrolysis of pistachio shell
Apaydın Varol, Esin; Pütün, Ersan; Pütün, Ayşe Eren (Elsevier Sci LTD, 2007)In this study, pistachio shell is taken as the biomass sample to investigate the effects of pyrolysis temperature on the product yields and composition when slow pyrolysis is applied in a fixed-bed reactor at atmospheric ... -
Steam pyrolysis of an industrial waste for bio-oil production
Önal, Eylem; Uzun, Başak Burcu; Pütün, Ayşe Eren (Elsevier Science BV, 2011)Potato skin, a food industry waste, was pyrolysed under three different atmospheres namely static, nitrogen, and steam to produce bio-oil and its derivatives. The oil yield obtained at 550 degrees C was 24.77% in static ... -
Structural analysis of bio-oils from fixed-bed pyrolysis of Euphorbia rigida and sunflower pressed bagasse
Özcan, A; Pütün, Ayşe Eren; Bartle, KD; Pütün, E (Taylor & Francis Inc, 2000)Fixed-bed tars of Euphorbia rigida and sunflower pressed bagasse have been investigated for their structures. These mrs were fractionated into pentane-soluble and -insoluble compounds (asphaltenes). Pentane soluble were ... -
Structural analysis of bio-oils from pyrolysis and steam pyrolysis of cottonseed cake
Özbay Nurgül; Pütün, Ayşe Eren; Pütün, Ersan (Elsevier Science BV, 2001)Structural analysis and the effect of the water vapour on the structure of the products obtained by low temperature thermal destruction of biomass at atmospheric pressure has been investigated. The liquid products were ... -
Synthetic fuel production from cottonseed: Fast pyrolysis and a TGA/FT-IR/MS study
Apaydın Varol, Esin; Uzun, Başak Burcu; Önal, Eylem; Pütün, Ayşe Eren (Elsevier, 2014)This study investigates the thermal decomposition behavior of cottonseed via TGA/FT-IR/MS and the quantification/characterization of liquid products from fast pyrolysis. Thermal degradation of the biomass sample has occurred ... -
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 ... -
TGA/MS/FT-IR study for kinetic evaluation and evolved gas analysis of a biomass/PVC co-pyrolysis process
Özsin, Gamzenur; Pütün, Ayşe Eren (Pergamon-Elsevier Science LTD, 2019)This study aims to investigate the thermal behaviours of a specific biomass and a polymer sample through co-pyrolytic degradation. Therefore, a non-edible food processing waste (cherry seed: CS) and a typical plastic waste ... -
Thermal and kinetic behaviors of biomass and plastic wastes in co-pyrolysis
Cepelioğullar, Özge; Pütün, Ayşe Eren (Pergamon-Elsevier Science LTD, 2013)In this study, co-pyrolysis characteristics and kinetics of biomass-plastic blends were investigated. Cotton stalk, hazelnut shell, sunflower residue, and arid land plant Euphorbia rigida, were blended in definite ratio ... -
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 ... -
TÜTÜN TARLA ATIĞININ TGA-FTIR-MS İLE TERMAL DAVRANIŞININ BELİRLENMESİ
Polat, Sevgi; Pütün, Ayşe Eren (2015)Bu çalı ş mada, tütün tarla atığ ı için termal bozundurma iş lemi termogravimetrik analiz (TGA) cihazı ile 20 ? C baş langıç sıcaklığ ı ndan 1000 ? C'ye kadar 5, 10, 15 ve 20 ? C /dk ıs ı tma hı zları nda ve azot atmosferi ... -
Tütün tarla atıklarından yapay yakıt üretiminin araştırılması
Pehlivan, Eylem (Anadolu Üniversitesi, 2000)Yapılan bu çalışmada endüstri bitkisi olan tütünün tarla atığı hammadde olarak seçilmiş ve yapay yakıt üretimi amacıyla değişik koşullarda pirolizi gerçekleştirilmiştir. Çalışmanın ilk aşamasında 0,425‹Dp‹0,850 mm parçacık ... -
Tütün Tarla Atıklarının Hızlı Pirolizi
Önal, Eylem; Pütün, Ayşe Eren (Anadolu Üniversitesi, 2009)Bu çalışmada, bir endüstri bitkisi olan tütünün tarla atığı hammadde olarak seçilmiş ve yapay yakıt üretimi amacıyla hızlı pirolizi gerçekleşmiştir. Hızlı piroliz çalışmalarında 0,425<Dp<0,850 mm parçacık boyutundaki ... -
Use of sesame stalk biomass for the removal of Ni(II) and Zn(II) from aqueous solutions
Kırbıyık, Cisem; Kılıç, Murat; Cepelioğullar, Özge; Pütün, Ayşe Eren (Iwa Publishing, 2012)In this study an agricultural residue, sesame stalk, was evaluated for the removal of Ni(II) and Zn(II) metal ions from aqueous solutions. Biosorption studies were carried out at different pH, biosorbent dosage, initial ... -
Utilization of Coal Fly ASH As Low-Cost Adsorbent Material For Nickel Removal Applications
Bu çalışmada, kömür uçucu külü sulu çözeltilerden nikel(II) iyonlarının gideriminde düşük maliyetli adsorban olarak değerlendirilmiştir. pH, adsorban miktarı, temas süresi ve başlangıç ağır metal derişimi gibi adsorpsiyon ... -
Yenilenebilir enerji kaynağı olarak pirinanın araştırılması
Özdemir, İsmet Alper (Anadolu Üniversitesi, 2001)Yapılan bu çalışmada, pirina hammadde olarak seşilmiş ve sabit yataklı Heinze reaktöründe değişik koşullarda pirolizi gerçekleştirilmiştir. Çalışmanın ilk aşamasında 1,29 mm ortalama partikül boyutunda hammadde ile 7°C/dk ...