Yazar "Pütün, Ersan" için WoS İndeksli Yayınlar Koleksiyonu listeleme
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Fast pyrolysis of soybean cake: Product yields and compositions
Uzun, Başak Burcu; Pütün, Ayşe Eren; Pütün, Ersan (Elsevier Sci LTD, 2006)This study was an investigation of the role of important parameters influencing pyrolysis yields from soybean cake. Experiments were carried out at temperatures ranging from 400 to 700 degrees C, for various nitrogen flow ... -
Fixed bed pyrolysis of Euphorbia rigida with different catalysts
Ateş, Funda; Pütün, Ayşe Eren; Pütün, Ersan (Pergamon-Elsevier Science LTD, 2005)Since Euphorbia rigida is a celluloid plant with low fat content, the oil yields of previous fixed bed pyrolysis studies were low. In order to increase the oil yield, biomass pyrolysis experiments were performed in a fixed ... -
Fixed-bed catalytic pyrolysis of cotton-seed cake: Effects of pyrolysis temperature, natural zeolite content and sweeping gas flow rate
Pütün, Ersan; Uzun, Başak Burcu; Pütün, Ayşe Eren (Elsevier Sci LTD, 2006)Catalyzed pyrolysis of cotton-seed cake was studied under different experimental conditions. Variables investigated were pyrolysis temperature, zeolite content and sweeping gas flow rate. Experiments were carried out ... -
Fixed-bed pyrolysis and hydropyrolysis of sunflower bagasse: Product yields and compositions
Pütün, Ayşe Eren; Koçkar, Ömer Mete; Yorgun, S; Gerçel, Hasan Ferdi; Andresen, J; Snape, CE; Pütün, Ersan (Elsevier Science BV, 1996)Pyrolysis and hydropyrolysis experiments at different temperatures, heating rates and pressures have been conducted on a sample of sunflower pressed bagasse to investigate the effect of particle size, sweep gas velocity, ... -
Fixed-bed pyrolysis of cotton stalk for liquid and solid products
Pütün, Ayşe Eren; Özbay Nurgül; Önal, EP; Pütün, Ersan (Elsevier Science BV, 2005)The pyrolysis of cotton stalk was studied for determining the main characteristics and quantities of liquid and solid products. Particular variables investigated were temperature (from 400 degrees C to 700 degrees C), ... -
Fixed-bed pyrolysis of cottonseed cake: Product yields and compositions
Pütün, Ayşe Eren; Özbay Nurgül; Koçkar, Ömer Mete; Pütün, Ersan (Taylor & Francis, 1997)Fired-bed pyrolysis experiments have been conducted on a sample of cottonseed cake to determine the possibility of being a potential source of renewable fuels and chemical feedstocks. The effects of heating rate, pyrolysis ... -
Humulus lupulus As a Raw Material for Bio-oil Production via Slow Pyrolysis
Apaydın Varol, Esin; Kılıç, Murat; Pütün, Ayşe Eren; Degirmen, Görkem; Pütün, Ersan (Gazi University, 2017)Humulus lupulus, a kind of hop plant agricultural waste was pyrolysed in a fixed bed reactor with a heating rate of 10 degrees C min(-1) in the presence of N-2 atmosphere. The effect of pyrolysis temperature was investigated ... -
Hydropyrolysis of extracted Euphorbia rigida in a well-swept fixed-bed tubular reactor
Gerçel, Hasan Ferdi; Pütün, Ayşe Eren; Pütün, Ersan (Taylor & Francis Inc, 2002)Tubular reactor fixed-bed hydropyrolysis experiments have been conducted on a sample of extracted Euphorbia rigida to determine the possibility of being a potential source of renewable fuels and chemical feedstock. The ... -
Investigating the interactions between lignocellulosic biomass and synthetic polymers during co-pyrolysis by simultaneous thermal and spectroscopic methods
Özsin, Gamzenur; Pütün, Ayşe Eren; Pütün, Ersan (Springer Heidelberg, 2019)The aim of this study was to investigate the effects of synthetic polymers during co-pyrolysis. To this end, a non-edible lignocellulosic biomass, walnut shells, and three synthetic polymers that were obtained from a ... -
Oil production from an arid-land plant: Fixed-bed pyrolysis and hydropyrolysis of Euphorbia rigida
Pütün, Ayşe Eren; Gerçel, Hasan Ferdi; Koçkar, Ömer Mete; Ege, O; Snape, CE; Pütün, Ersan (Butterworth-Heinemann LTD, 1996)Fixed-bed pyrolysis and hydropyrolysis experiments at different temperatures, heating rates and pressures have been conducted on a sample of Euphorbia rigida to investigate the product yields and characteristics. In hydrogen ... -
Optimization of biodiesel production from castor oil using factorial design
Kılıç, Murat; Uzun, Başak Burcu; Pütün, Ersan; Pütün, Ayşe Eren (Elsevier Science BV, 2013)In this study, optimization of biodiesel production from castor oil using full factorial design was investigated. The biodiesel production was carried out in a batch laboratory scale reactor by alkaline-catalyzed ... -
Optimization of Euphorbia rigida fast pyrolysis conditions by using response surface methodology
Kılıç, Murat; Pütün, Ersan; Pütün, Ayşe Eren (Elsevier, 2014)The objective of this study was to optimize the experimental conditions for obtaining the highest bio-oil yield from Euphorbia rigida (E. rigida) by fast pyrolysis using response surface methodology (RSM) based on central ... -
Production of bio-fuels from cottonseed cake by catalytic pyrolysis under steam atmosphere
Pütün, Ersan; Uzun, Başak Burcu; Pütün, Ayşe Eren (Pergamon-Elsevier Science LTD, 2006)The purpose of this study is to evaluate the amounts of catalytic pyrolysis products of cottonseed cake in steam atmosphere and investigate the effects of both zeolite and steam on pyrolysis yields. The effect of steam was ... -
Production of biocrudes from biomass in a fixed-bed tubular reactor: product yields and compositions
Pütün, Ayşe Eren; Özcan, Adnan; Gerçel, Hasan Ferdi; Pütün, Ersan (Elsevier Sci LTD, 2001)Fixed-bed pyrolysis in a tubular reactor were conducted on three biomass samples, Euphorbia rigida, sunflower (Helianthus annuus L.) pressed bagasse and hazelnut (Corylus avellana) shells, to determine the possibility of ... -
Pyrolysis of hazelnut shells in a fixed-bed tubular reactor: yields and structural analysis of bio-oil
Pütün, Ayşe Eren; Özcan, Adnan; Pütün, Ersan (Elsevier Science BV, 1999)Fixed-bed pyrolysis experiments have been conducted on a sample of hazelnut shells to determine the possibility of being a potential source of renewable fuels and chemical feedstocks. The effects of pyrolysis temperature ... -
Pyrolysis of two different biomass samples in a fixed-bed reactor combined with two different catalysts
Ateş, Funda; Pütün, Ayşe Eren; Pütün, Ersan (Elsevier Sci LTD, 2006)Pyrolysis of Euphorbia rigida and sesame stalk biomass samples with two selected commercial catalyst, namely DHC-32 and HC-K 1.3Q, have been conducted in a fixed-bed reactor. The effect of different catalysts and their ... -
Rapid pyrolysis of olive residue. 1. Effect of heat and mass transfer limitations on product yields and bio-oil compositions
Uzun, Başak Burcu; Pütün, Ayşe Eren; Pütün, Ersan (American Chemical Society, 2007)In this study, the aim was to obtain high bio-oil yields in a fixed bed tubular reactor at various pyrolysis temperatures, reaction times, sweeping gas velocities, particle sizes, and heating rates. In order to improve ... -
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 ... -
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 ...