Başlık için Kimya Mühendisliği Bölümü listeleme
Toplam kayıt 233, listelenen: 158-177
-
Optimization of bio-oil production using response surface methodology and formation of polycyclic aromatic hydrocarbons (PAHs) at elevated pressures
(Elsevier Science BV, 2016)This paper aims at the optimization of bio-oil yield obtained from poplar sawdust pyrolysis. A response surface methodology was carried out to optimize the experimental conditions. The factors investigated were temperature, ... -
Optimization of Biodiesel Production and Fuel Properties of Blends
(Taylor & Francis Inc, 2014)In this study, optimization of essential parameters, such as reaction time, reaction temperature, methanol/oil molar ratio, catalyst amount, and type of biodiesel production via transesterification, were investigated. The ... -
Optimization of biodiesel production from castor oil using factorial design
(Elsevier Science BV, 2013)In this study, optimization of biodiesel production from castor oil using full factorial design was investigated. The biodiesel production was carried out in a batch laboratory scale reactor by alkaline-catalyzed ... -
Optimization of desilication parameters of low-silica ZSM-12 by Taguchi method
(Elsevier Science BV, 2019)Zeolite ZSM-12 was synthesized by a direct hydrothermal method and subsequently desilicated by alkaline treatment under different conditions. Changes in the properties of the zeolite samples were investigated by XRD, ... -
Optimization of Euphorbia rigida fast pyrolysis conditions by using response surface methodology
(Elsevier, 2014)The objective of this study was to optimize the experimental conditions for obtaining the highest bio-oil yield from Euphorbia rigida (E. rigida) by fast pyrolysis using response surface methodology (RSM) based on central ... -
Optimization of Hydrothermal Pretreatment Parameters for Glucose and Xylose Recovery From Poppy Stalks
(Eta-Florence Renewable Energies, 2015)Response surface methodology (RSM) was employed to optimize hydrothermal pretreatment conditions for glucose and xylose recovery from poppy stalk, with respect to temperature (120-200oC), solid to liquid ratio (0.05-0.20) ... -
Optimization of parametric performance of a PEMFC
(Pergamon-Elsevier Science LTD, 2007)In this study, the Taguchi method was applied to determine optimum working conditions in obtaining maximum power density of a PEMFC. Performance measure analysis was also followed by performing a variance analysis, in order ... -
Optimization of structural combinations on the performance of a PEMFC's MEA
(Elsevier Science BV, 2008)In this study, the Taguchi method was applied to determine optimum structural combination of a membrane electrode assembly (MEA) in obtaining maximum power density of a PEMFC. Performance measure analysis was also followed ... -
Paper Based, Expanded Graphite/Polypyrrole Nanocomposite Supercapacitors Free from Binders and Current Collectors
(Electrochemical Soc Inc, 2018)Expanded graphite (EG) - polypyrrole (PPy) hybrid nanocomposites are used for the fabrication of paper-based highly flexible supercapacitor devices. Brush-painted EG electrodes are utilized as electrodes for the electrodeposition ... -
Pitch based carbon fiber production
(Gazi University, Fac Engineering Architecture, 2018)Carbon fiber, which has unique physical, chemical and biological properties, is a versatile material in fiber form composed of carbon atoms arranged in hexagonal structure. In the industrial production of carbon fibers, ... -
Polymer Electrolyte Membrane Fuel Cell Performance of a Sulfonated Poly(Arylene Ether Benzimidazole) Copolymer Membrane
(Hindawi Publishing Corp, 2016)Disodium-3,3'-disulfonate-4,4'-dichlorodiphenylsulfone (SDCDPS) and 5,5'-bis[2-(4-hydroxyphenyl) benzimidazole] (HPBI) monomers were synthesized. Binding these monomers via nucleophilic aromatic polycondensation reaction, ... -
Potential contribution of firewood, energy forestation and forest residues in Turkey
(Multi-Science Publ Co LTD, 2010)In this paper, the firewood, energy forest and forest residue potentials of Turkey are investigated. Turkey has no large oil or gas reserves and more than half of the consumed energy is imported from abroad. Hence, in order ... -
Preparation and characterization of pyrolytic chars from different biomass samples
(Elsevier Science BV, 2012)In the present work four different biomass samples (pine cone, soybean cake, corn stalk and peanut shell) were pyrolyzed to 550 degrees C in an inert gas atmosphere and a comparison between the properties of chars produced ... -
Preparation and surface characterization of activated carbons from Euphorbia rigida by chemical activation with ZnCl2, K2CO3, NaOH and H3PO4
(Elsevier Science BV, 2012)Preparation of activated carbons from Euphorbia rigida by chemical activation with different impregnation agents and ratios was studied. ZnCl2, K2CO3, NaOH and H3PO4 were used as chemical activation agents and four ... -
Preparation of Ni-based catalysts to produce hydrogen from glycerol by steam reforming process
(Pergamon-Elsevier Science LTD, 2016)Nickel and Nickel-Palladium-catalysts supported on Al2O3-ZrO2, Al2O3-ZrO2-La2O3 and on Olivine were synthesized using a combination of sol-gel and wet impregnation methods. The influence of the formulation on their textural ... -
Pressurized pyrolysis of dried distillers grains with solubles and canola seed press cake in a fixed-bed reactor
(Elsevier Sci LTD, 2015)Pressurized pyrolysis of biomasses was carried in a fixed bed reactor to obtain gases, bio-oils and chars at elevated temperatures. The products were characterized by GC-MS, FTIR, viscometer, SEM, BET and EDXRFS methods. ... -
Production and characterization of pyrolysis liquids from sunflower-pressed bagasse
(Elsevier Sci LTD, 2002)Pyrolysis experiments on sunflower (Helianthus annus L.)-pressed bagasse were performed in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and ... -
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 ... -
The production and evaluation of bio-oils from the pyrolysis of sunflower-oil cake
(Pergamon-Elsevier Science LTD, 2002)Sunflower (Helianthus annus L.)-oil cake pyrolysis experiments were achieved in a fixed-bed tubular reactor. The effects of nitrogen flow rate and final pyrolysis temperature on the pyrolysis product yields and chemical ... -
Production of bio-oil from biomass: Slow pyrolysis of rapeseed (Brassica napus L.) in a fixed-bed reactor
(Taylor & Francis Inc, 2003)Rapeseed (Brassica napus L.) pyrolysis experiments were performed in a fixed-bed reactor The effects of heating rate, final pyrolysis temperature, particle size, and pyrolysis atmosphere on pyrolysis product Yields and ...
