Güncel Gönderiler: Mühendislik Fakültesi
Toplam kayıt 2037, listelenen: 561-580
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Alkali catalyzed transesterification of cottonseed oil by microwave irradiation
(Elsevier Sci LTD, 2007)In this work microwave assisted transesterification of cottonseed oil was carried out in the presence of methanol and potassium hydroxide (KOH). Parametric studies were done to investigate the optimum conditions (catalyst ... -
Biocrude from biomass: pyrolysis of cottonseed cake
(Pergamon-Elsevier Science LTD, 2001)Fixed-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 chemicals feed-stocks, in two different reactors, namely a ... -
Investigation of the dissolution kinetics of kaolin in HCl solution
(Elsevier Science BV, 2003)Kaolin with a given size distribution was calcined at 1023 K for 2 h. The calcined samples were digested in hydrochloric acid solutions of known concentration at constant temperatures. The samples taken from the solution ... -
Antioxidant and free radical scavenging activities of Rhus coriaria and Cinnamomum cassia extracts
(Akademiai Kiado, 2003)Antioxidant and free radical scavenging activities of the extracts of sumac (Rhus coriaria) fruits and cassia. (Cinnamomum cassia) cortex were studied. Plant samples were extracted with methanol:water (80:20) and an aliquot ... -
Production of biocrudes from biomass in a fixed-bed tubular reactor: product yields and compositions
(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 ... -
Fatty acid composition of seed oils of twelve Salvia species growing in Turkey
(Kluwer Academic/Plenum Publishers, 2004)Seed oils of 12 Salvia species collected from different regions in Turkey (S. albimaculata Hedge & Hub. -Mor., S. candidisima Vahl., S. cedronellaBoiss., S. cryptanthaMontbret &Aucherex Bentham, S. forskahlei L., S. fruticosa ... -
Seed oils of fifteen Ebenus taxa growing in Turkey
(Consultants Bureau, 2001)Oil yields and compositions from seeds of 15 Ebenus taxa growing in Turkey were investigated. The yields were found between 4.0% and 13.0%. The seeds of E. barbigera showed the highest while E. plumosa var. plumosa showed ... -
Fatty acids of the seeds of Origanum onites L. and O-vulgare L.
(Springer Heidelberg, 2004)Seed oils of Origanum onites L. from the Antalya and Mugla regions and O. vulgare L. from the Kirklareli region of Turkey were extracted with hexane in a Soxhlet apparatus. The oil yields were 14.1-20.0 and 18.5%, respectively. ... -
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 ...
