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Toplam kayıt 179, listelenen: 141-160
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Rapid and catalytic pyrolysis of corn stalks
(Elsevier Science BV, 2009)Non-catalytic and catalytic rapid pyrolysis of corn stalks was studied in a tubular fixed-bed reactor. The optimum operating conditions giving the highest liquid yield was determined as pyrolysis temperature of 500 degrees ... -
Rapid and slow pyrolysis of pistachio shell: Effect of pyrolysis conditions on the product yields and characterization of the liquid product
(John Wiley & Sons LTD, 2007)This study reports the experimental results for the pyrolysis of pistachio shell under different conditions in a tubular reactor under a nitrogen flow. For the different conditions of pyrolysis temperature, nitrogen flow ... -
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 ... -
Reaction kinetics of the catalytic esterification of acrylic acid with propylene glycol
(Elsevier Science BV, 2009)The kinetics of esterification of acrylic acid with propylene glycol has been studied in the presence of Amberlyst-15 as a heterogeneous catalyst. The reaction was realized in a batch reactor at different temperatures and ... -
The regression analysis of fast pyrolysis product yields and determination of product quality
(Elsevier Sci LTD, 2012)The main objective of this study was to investigate the influence of pyrolysis parameters on product yields with experimental and to evaluate of results with the regression models. For this purpose; horn-beam sawdust was ... -
Removal of chromium from aqueous solutions and plating bath rinse by an electrochemical method
(1994)In this work, a bipolar packed bed electrolytic cell having steel Raschig rings behaving as electrodes has been used to remove chromium in the form of Cr(VI) from aqueous solutions and a sample of plating bath rinse. ... -
Removal of copper(II) and cadmium(II) ions from aqueous solutions by biosorption onto pine cone
(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 ... -
Removal of Dye Stuffs from Waste Water: Electrocoagulation of Acilan Blau Using Soluble Anode
(1992)An attempt was made to remove a dye such as Acilan Blau usingan electrochemical method. In the process a bipolar packed bed electrochemical reactor consisting of soluble electrodes was used and operated in the batch mode. ... -
The Seebeck coefficient and the Peltier effect in a polymer electrolyte membrane cell with two hydrogen electrodes
(Pergamon-Elsevier Science LTD, 2013)We report that the Seebeck coefficient of a Nafion membrane cell with hydrogen electrodes saturated with water vapour, at 1 bar hydrogen pressure and 340 K, is equal to 670 +/- 50 mu V/K, meaning that the entropy change ... -
A shrinking core model and empirical kinetic approaches in supercritical CO2 extraction of safflower seed oil
(Elsevier, 2014)Utilization of supercritical CO2 in safflower seed extraction was performed using a semi-batch extractor. Different extraction parameters, such as 40-60 MPa pressure, 323-347 K temperature, 20-76 min time, and 1-3 mL/min ... -
Slow, fast and flash pyrolysis of rapeseed
(Pergamon-Elsevier Science LTD, 2003)Pyrolysis experiments have been conducted on a sample of rapeseed to determine particularly the effects of pyrolysis temperature, heating rate, particle size and sweep gas flow rate on the pyrolysis product yields and their ... -
Sonochemical synthesis and loading of PbS nanoparticles into mesoporous silica
(Elsevier Science BV, 2018)A sonochemical method was used for simultaneous synthesis and loading of lead sulfide (PbS) nanoparticles into mesoporous SBA-15 (Santa Barbara Amorphous). In this study, the effect of different loading ratios (30, 45, 60, ... -
Steam pyrolysis of an industrial waste for bio-oil production
(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 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 ... -
Study of polyphenol content in the seeds of red grape (Vitis vinifera L.) varieties cultivated in Turkey and their antiradical activity
(Elsevier Sci LTD, 2008)The polyphenolic content and antioxidant capacity in the seeds of 11 red grape varieties (five international and six native) widely cultivated in Turkey were investigated. Total phenolic, total flavanol and total polymeric ... -
A study on the porosity development for biomass based carbonaceous materials
(Elsevier Science BV, 2015)This study deals with the structural and morphological changes occurring during pyrolysis and activation steps for the production of porous carbons from an arid-land plant Euphorbia rigida. A fixed-bed retort was used for ... -
Supercritical fluid extraction of daphne (Laurus nobilis L.) seed oil
(Springer, 2006)Laurus nobilis L., commonly known as daphne tree, is an evergreen that belongs to the Lauraceae family. Daphne trees produce grape-sized shiny purplish berries having three parts: flesh, skin, and an inner kernel (single ... -
Sülfonlanmış Poli(Arilen Eter Benzimidazol) Kopolimer Membran Sentezi ve Karakterizasyonu
(2014)Hidrojenden elektrik enerjisi üretiminde kullanılan yakıt hücreleri, geleceğin çevre dostu ve yüksek verimli enerji üretimine alternatif olarak kabul görmektedirler. Nafion gibi perflorosülfonik asit bazlı membranlar polimer ... -
Synthesis and Characterization of Supported and Non-Supported Iron-Incorporated Catalysts
(Gazi University, Fac Engineering Architecture, 2009)In the content of this study, silica supported Fe-MCM-48 catalysts were produced using direct hydrothermal synthesis (Fe-MCM-48-1) and wet-impregnation (Fe-MCM-48-2) methods and an unsupported Fe-Mo-O catalyst was produced ... -
The synthesis of manganese (III) acetate in bipolar packed-bed and trickle-bed electrode cells
(2000)In this research, the electrochemical oxidation of Mn(II) acetate to Mn(III) acetate was investigated in aqueous acetic acid solution, using a bipolar particulate electrode cell. In order to determine the effect of flow ...