Yazar "Koçkar, Ömer Mete" için listeleme
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Atkestanesi ekstraksiyonu ve essin izolasyonu
Koçkar, Ömer Mete (Anadolu Üniversitesi, 1989)Bu çalışmada, tıbbi bir bitki olan atkestanesinden (Aesculus hippocastanum L.) ülkemizde endüstriyel olarak total kuru ekstre ve etken madde essin üretimi için uygun proses değişkenleri araştırılmıştır. Bu amaçla, Eskişehir'den ... -
Biooil production from an oilseed crop: Fixed-bed pyrolysis of rapeseed (Brassica napus L.)
Şensöz, S; Angin, D; Yorgun, S; Koçkar, Ömer Mete (Taylor & Francis Inc, 2000)Fixed-bed pyrolysis experiments at differ ent temperatures and heating rates have been conducted on a rapeseed sample to investigate the effect of particle size and sweep gas velocity on the product yields. The various ... -
Ceviz kabuklarının yenilenebilir enerji kaynağı olarak değerlendirilmesi
Atabay, Elif (Anadolu Üniversitesi, 2001)Bu çalışmada, yeni ve yenilenebilir enerji kaynağı, biyokütle adayı ceviz (Juglans regia) kabukları seçilmiş ve farklı koşullarda pirolizi gerçekleştirilmiştir. Deneyler iki farklı sabit yatak reaktörde, yavaş piroliz ve ... -
Characterization of slow pyrolysis oil obtained from linseed (Linum usitatissimum L.)
Açıkgöz, C.; Koçkar, Ömer Mete (Elsevier Science BV, 2009)This study presents the characterization of pyrolysis oil obtained from linseed (Linum usitatissimum L.) produced by slow pyrolysis in the maximum yield. The pyrolysis oil was analyzed to determine its elemental composition ... -
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 ... -
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. ... -
Copyrolysis of seyitomer-lignite and safflower seed: Influence of the blending ratio and pyrolysis temperature on product yields and oil characterization
Onay, Özlem; Bayram, Evren; Koçkar, Ömer Mete (American Chemical Society, 2007)Pyrolytic behaviors of biomass/coal mixtures were investigated under a heating rate of 7 degrees C min(-1), over a range of pyrolysis temperatures between 400 and 700 degrees C, and the blending ratio of coal in mixtures ... -
Desulphurization of lignites by slow, fast, and flash pyrolysis and high intensity dry magnetic separation
Koca, Hüseyin; Koçkar, Ömer Mete; Koca, Sabiha (Taylor & Francis Inc, 2007)Slow, fast and flash pyrolysis followed by high intensity dry magnetic ( HIDM) separation experiments were conducted to obtain improved solid fuels. Pyrolysis experiments were performed in three different apparatus, and ... -
The effect of mixing ratio on co-pyrolysis of lignite and rapeseed
Onay, Özlem; Usta, Çağla; Koçkar, Ömer Mete (Acta Press Anaheim, 2007)The biomass and coal mixtures were subjected to fast pyrolysis process to produce biooil. The biooil yield was in the range of I 1.573.1 wt%. depending on the percentage of biomass and coal in the mixture. On the other ... -
Effects of Mass-Transfer and Hydrogen Pressure on the Fixed-Bed Pyrolysis of Sunflower Bagasse
Pütün, Ersan; Koçkar, Ömer Mete; Gerçel, Hasan Ferdi; Ekinci, E; Marotovaler, M; Andresen, J; Snape, Ce (American Chemical Society, 1994)… -
The experimental optimization of the electrosynthesis of manganese(III) acetate in a bipolar packed-bed reactor
Güvenc, A; Pekel, AT; Koçkar, Ömer Mete (Elsevier Science Sa, 2004)The electrochemical oxidation of Mn(II) acetate to Mn(III) acetate, which is an industrial oxidizing agent and catalyst, in acetic acid medium was investigated in a bipolar packed-bed electrode cell with mesh spacers. The ... -
An experimental study on the mechanical and microstructural properties of geopolymers
Arıöz, E.; Arıöz, Ömer; Koçkar, Ömer Mete (Elsevier Science BV, 2012)Geopolymer is a new class of inorganic polymer synthesized by activation of an aluminosilicate source with an alkaline hydroxide or silicate solution. In recent years, geopolymeric materials have attracted much more attention ... -
Fast pyrolysis of linseed: product yields and compositions
Açıkgöz, C.; Onay, O; Koçkar, Ömer Mete (Elsevier Science BV, 2004)Fixed-bed fast pyrolysis experiments have been conducted on a sample of linseed (Linum usitatis-simum L.) to determine particularly the effect of pyrolysis temperature, heating rate, particle size and sweep gas flow rate ... -
Fast pyrolysis of rape seed in a well-swept fixed-bed reactor
Onay, Özlem; Beis, Sedat Hakkı; Koçkar, Ömer Mete (Elsevier Science BV, 2001)Fixed-bed fast pyrolysis experiments have been conducted on a sample of rape seed to determine particularly the effects of pyrolysis temperature, particle size, heating rate and sweep gas flow rate on the pyrolysis yields ... -
Fast Pyrolysis of Safflower Seed in the Presence of Catalyst
Onay, Özlem; Koçkar, Ömer Mete (Amer Soc Mechanical Engineers, 2009)In this study, the safflower seed (Carthamus tinctorius L.) was used as biomass sample for catalytic pyrolysis using commercial catalyst (Criterion-454) in the nitrogen atmosphere. Experimental studies were conducted in a ... -
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 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 ... -
Fixed-bed pyrolysis of Daphne (Laurus nobilis L.) seed
Beis, Sedat Hakkı; Duzenli, D; Onay, O; Koçkar, Ömer Mete (Taylor & Francis Inc, 2003)Fixed-bed slow pyrolysis experiments have been conducted on a sample of daphne seed to determine the effects of pyrolysis temperature, particle size, and heating rate on the pyrolysis product yields and chemical compositions. ... -
Fixed-bed pyrolysis of hazelnut shell: A study on mass transfer limitations on product yields and characterization of the pyrolysis oil
Koçkar, Ömer Mete; Onay, O; Pütün, Ayşe Eren; Pütün, E (Taylor & Francis Inc, 2000)Fixed-bed slow and fast pyrolysis experiments have been conducted on a sample of hazelnut shelf. The experiments were performed in two different pyrolysis reactors, a fixed-bed Heinze and a well-swept fixed-bed tubular ... -
Fixed-bed pyrolysis of rapeseed (Brassica napus L.)
Onay, Özlem; Koçkar, Ömer Mete (Pergamon-Elsevier Science LTD, 2004)Fixed-bed slow and fast pyrolysis experiments have been conducted on a sample of rapeseed. The experiments were performed in two different pyrolysis reactors, namely a fixed-bed Heinze and a well-swept fixed-bed tubular ...
