Güncel Gönderiler: Fakülteler
Toplam kayıt 10075, listelenen: 1461-1480
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Pyrolysis of hazelnut shells in a fixed-bed tubular reactor: yields and structural analysis of bio-oil
(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 ... -
Structural analysis of bio-oils from pyrolysis and steam pyrolysis of cottonseed cake
(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 ... -
Fast pyrolysis of sunflower-pressed bagasse: Effects of sweeping gas flow rate
(Taylor & Francis Inc, 2002)Sunflower (Helianthus annus L.)-pressed bagasse pyrolysis experiments were performed in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and ... -
Catalytic pyrolysis of perennial shrub, Euphorbia rigida in the water vapour atmosphere
(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 ... -
Effect of steam on the pyrolysis of biomass
(Taylor & Francis Inc, 2006)A comparative study of the thermochemical behavior of cottonseed cake in static, nitrogen and steam atmospheres has been carried out. The influence of the different atmospheres in the yield and composition were observed. ... -
Fast pyrolysis of linseed: product yields and compositions
(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 ... -
Production and characterization of pyrolysis oils from Euphorbia macroclada
(Taylor & Francis Inc, 2004)In this work, Euphorbia macroclada were pyrolyzed in a laboratory-scale fixed bed reactor. The influence of final pyrolysis temperature, heating rate, and pyrolysis atmosphere on the product Yields was investigated. Pyrolysis ... -
Bio-oil production from pyrolysis and steam pyrolysis of soybean-cake: product yields and composition
(Pergamon-Elsevier Science LTD, 2002)The slow pyrolysis of soybean cake in a fixed-bed reactor was investigated under three different atmospheres: static, for determining the effects of pyrolysis temperature and particle size, nitrogen and steam. The liquid ... -
Antioxidants from laurel (Laurus nobilis L.) berries: influence of extraction procedure on yield and antioxidant activity of extracts
(Akademiai Kiado, 2007)The antioxidant activities of laurel (Laurus nobilis L.) berries extracts were evaluated using a DPPH assay, a beta-carotene/linoleic acid assay and the Rancimat method. Pericarp and kernel of berries were extracted by ... -
The effect of a sweeping gas flow rate on the fast pyrolysis of biomass
(Taylor & Francis Inc, 2002)Sunflower (Helianthus annus L.)-pressed bagasse pyrolysis experiments were performed in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and ... -
Comparison between the "slow" and "fast" pyrolysis of tobacco residue
(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 ... -
FAST PYROLYSIS of BIOMASS with ACTIVATED ALUMINA
(Amer Soc Mechanical Engineers, 2012)In this study, corncob was chosen as a biomass sample and the pyrolysis of this sample was carried out with or without catalyst at different conditions in a well-swept fixed-bed reactor. In the experimental studies, firstly ... -
An energy crop for producing bio-fuel: Euphorbia rigida
(Norwegian University Sci Technol, 2005)Biomass and energy crops are the renewable energy sources, which is often believed to have the highest potential to contribute to a future sustainable energy supply to world's energy. Bioenergy is expected to become one ... -
Bio-oil production by fast pyrolysis of olive residue: Effect of pyrolysis temperature and heating rate
(Norwegian University Sci Technol, 2005)In this study our aim is to reach high yields of bio-oil in a fixed bed tubular reactor at various pyrolysis temperatures, sweeping gas velocities, and heating rates. In these experiments, to improve heat and mass transfer, ... -
Antioxidant activity and phenolic composition of sumac (Rhus coriaria L.) extracts
(Elsevier Sci LTD, 2007)Antioxidant activity and phenolic compounds of sumac extracts were investigated. Sumac was extracted in methanol and subjected to solvent-solvent partitioning to yield two fractions as ethyl acetate and aqueous. Methanol ... -
Rapid pyrolysis of olive residue. 1. Effect of heat and mass transfer limitations on product yields and bio-oil compositions
(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 ... -
Bio-oil production from an oilseed by-product: Fixed-bed pyrolysis of olive cake
(Taylor & Francis Inc, 2007)A study of pyrolysis of olive cake at the temperature range from 400 degrees C to 700 degrees C has been carried out. The experiments were performed in a laboratory scale tubular reactor under nitrogen atmosphere. The ... -
Fast pyrolysis of soybean cake: Product yields and compositions
(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 ... -
Rice straw as a bio-oil source via pyrolysis and steam pyrolysis
(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 ... -
Kinetics of hydrolysis of benzaldehyde dimethyl acetal over Amberlite IR-120
(American Chemical Society, 2007)The kinetics of the hydrolysis of benzaldehyde dimethyl acetal has been studied using a circulated batch reactor in dioxane. Amberlite IR-120, in its acidic form, was used as a heterogeneous catalyst. Kinetic expression ...
