Güncel Gönderiler: Kimya Mühendisliği Bölümü
Toplam kayıt 233, listelenen: 161-180
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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 ... -
Comparison of High Temperature Alkali and Acid Pretreatment for the Enzymatic Saccharification of Poppy Stalks
(Aidic Servizi Srl, 2014)In this study, the effect of dilute alkali (NaOH) and dilute acid (H2SO4) concentrations on the enzymatic digestibility, and sugar recovery from poppy stalks at the pretreatment temperature of 120 degrees C, and pretreatment ... -
Effect of Temperature and Time on the Steam Pretreatment of Hazelnut Shells for the Enzymatic Saccharification
(Aidic Servizi Srl, 2014)Saturated steam pretreatment of hazelnut shells was studied for fermentable sugars after enzymatic hydrolysis. The elevation of temperature (from 160 to 200 degrees C) and time (0-30 min) of steam pretreatment were ... -
Comparison of Dilute Acid and Alkali Catalysed Liquid Hot Water Pretreatment of Hazelnut Shells for Enzymatic Hydrolysis
(Eta-Florence Renewable Energies, 2015)The efficiency of alkali and acid pretreatment of hazelnut shells for increasing enzymatic saccharification of cellulose has been evaluated. Hazelnut shells were pretreated with 1% of sulphuric acid, and 2.25 % sodium ... -
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) ... -
Fe2O3 nanocomposite PVC membrane with enhanced properties and separation performance
(Elsevier Science BV, 2017)Organic and inorganic mixed matrix membranes are one of the most promising new membrane materials for ultrafiltration (UF). separation applications. In this study, PVC/Fe2O3-mixed UF membranes were fabricated at different ... -
Hydrogen production by supercritical water gasification of fruit pulp in the presence of Ru/C
(Pergamon-Elsevier Science LTD, 2016)In this work, supercritical water gasification of fruit pulp was conducted in a batch reactor in the presence of Ru/C catalyst. Reaction parameters such as temperature (673-873 K), time (0-60 min), biomass ratio (2.5-10wt.%) ... -
Thermodynamic modeling of the water-gas shift reaction in supercritical water for hydrogen production
(Maik Nauka/Interperiodica/Springer, 2017)In this study, a computational model is developed for the estimation of the equilibrium composition of WGSR (water gas shift reaction) based on the stoichiometric and nonstoichiometric thermodynamic approaches. The model ... -
Thermodynamic Modeling of Water-Gas Shift Reaction in Supercritical Water
(Int Assoc Engineers-Iaeng, 2012)Water gas shift reaction (WGSR) is one of the fundamental reactions which occurs during supercritical water gasification. A stoichiometric thermodynamic model is developed to estimate equilibrium composition of WGSR with ... -
A Comparative Characterization of the HPA-MCM-48 Type Catalysts Produced by the Direct Hydrothermal and Room Temperature Synthesis Methods
(Hindawi LTD, 2012)MCM-48 type support materials synthesized by the direct hydrothermal synthesis (HTS) and room temperature synthesis (RTS) methods were incorporated with tungstophosphoric acid (TPA) in the range of 10-40 wt% by using a wet ... -
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, ... -
Hydrogenolysis of Aqueous Glycerol over Raney Nickel Catalyst: Comparison of Pure and Biodiesel By-Product
(American Chemical Society, 2012)The hydrogenolysis of pure and biodiesel byproduct glycerol in the presence of Raney nickel catalyst using an autoclave was studied. The effects of stirring speed, temperature, amount of catalyst, H-2 pressure, and glycerol ... -
Effects of processing on the properties of chitosan/cellulose nanocrystal films
(Elsevier Sci LTD, 2015)Biocomposites of chitosan (CS)/cellulose nanocrystals (CN) were prepared by using solution casting method. Influences of solution preparation method and CN content on the properties of composites were investigated. Mechanical ... -
Effect of ZnO type and concentration on the mophology, thermal, and mechanical properties of poly(ether ester)/ZnO composites
(Wiley-Blackwell, 2013)Poly(ether ester) (PEE) copolymers were synthesized in a two-stage process involving transesterification and polycondensation. The synthesized copolymer and the zinc oxide (ZnO) were used in composite preparation by melt ... -
Influence of Zinc Oxide on Thermoplastic Elastomer-Based Composites: Synthesis, Processing, Structural, and Thermal Characterization
(Wiley-Blackwell, 2016)It was aimed to investigate how thermal conductivity and stability properties of synthesized thermoplastic elastomers were influenced by zinc oxide (ZnO) additives which differed in size and surface treatment. ZnO particles ... -
The efficacy of a novel antibacterial hydroxyapatite nanoparticle-coated indwelling urinary catheter in preventing biofilm formation and catheter-associated urinary tract infection in rabbits
(Springer, 2011)The aim of this study was to investigate of the efficacy and reliability of a novel antimicrobial hydroxyapatite (HA) nanoparticle coating of urethral catheters, in the prophylaxis of biofilm formation and bacteriuria in ... -
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 ... -
Combined effect of a plasticizer and carvacrol and thymol on the mechanical, thermal, morphological properties of poly(lactic acid)
(Wiley, 2018)In this study, the effects of the monotherpenic phenol concentration on the properties of biocomposites containing plasticized poly(lactic acid) (PLA) with acetyl tributyl citrate (ATBC) were investigated. The monotherpenic ... -
Development of antibacterial electrospun chitosan/poly(vinyl alcohol) nanofibers containing silver ion-incorporated HAP nanoparticles
(Taylor & Francis LTD, 2013)Chitosan/poly(vinyl alcohol) (CS/PVA) nanofibers with a diameter in the range of 60-70nm were prepared by electrospinning method. The effect of CS/PVA blend ratio and process parameters on the morphology and diameter of ... -
The influence of pectolytic enzyme addition and prefermentative mash heating during the winemaking process on the phenolic composition of Okuzgozu red wine
(Elsevier Sci LTD, 2013)The effects of pectolytic enzyme addition and mash heating prior to fermentation on the phenolic component of Okuzgozu red wine during the winemaking and ageing processes were investigated. In general, the highest concentration ...
