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Toplam kayıt 179, listelenen: 149-168
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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 ... -
The synthesis of manganese(III) acetate in bipolar packed-bed and trickle-bed electrode cells
(Scientific Technical Research Council Turkey, 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 ... -
Synthetic fuel production from cottonseed: Fast pyrolysis and a TGA/FT-IR/MS study
(Elsevier, 2014)This study investigates the thermal decomposition behavior of cottonseed via TGA/FT-IR/MS and the quantification/characterization of liquid products from fast pyrolysis. Thermal degradation of the biomass sample has occurred ... -
Synthetic fuel production from tea waste: Characterisation of bio-oil and bio-char
(Elsevier Sci LTD, 2010)The pyrolysis of tea waste was studied for determining the main characteristics and quantities of liquid and solid products. Particular investigated process variables were temperature (673-973 K), heating rate (5-700 K min ... -
TGA/MS/FT-IR study for kinetic evaluation and evolved gas analysis of a biomass/PVC co-pyrolysis process
(Pergamon-Elsevier Science LTD, 2019)This study aims to investigate the thermal behaviours of a specific biomass and a polymer sample through co-pyrolytic degradation. Therefore, a non-edible food processing waste (cherry seed: CS) and a typical plastic waste ... -
Thermal and kinetic behaviors of biomass and plastic wastes in co-pyrolysis
(Pergamon-Elsevier Science LTD, 2013)In this study, co-pyrolysis characteristics and kinetics of biomass-plastic blends were investigated. Cotton stalk, hazelnut shell, sunflower residue, and arid land plant Euphorbia rigida, were blended in definite ratio ... -
Thermal characterization and flammability of polypropylene containing sepiolite-APP combinations
(Walter De Gruyter GMBH, 2017)The effects of sepiolite on fire behavior of ammonium polyphosphate-based intumescent flame retardant (IFR)/polypropylene (PP) were investigated. The disaggregation of sepiolite bundles has been provided by wet-milling as ... -
Thermal decomposition behavior of tobacco stem Part I: TGA-FTIR-MS analysis
(Taylor & Francis Inc, 2016)In the present study, the thermal degradation behavior of tobacco stem was examined by means of a thermogravimetric analyzer (TGA) under nitrogen atmosphere at temperature range of 25-1,000 degrees C. The TG curve indicated ... -
Thermal decomposition behavior of tobacco stem Part II: Kinetic analysis
(Taylor & Francis Inc, 2016)As a continuation of the previous study on the thermal degradation behavior of tobacco stem, this work is focused on the kinetics of pyrolytic decomposition. Thermogravimetric analysis of tobacco stem samples was conducted ...