Güncel Gönderiler: Fakülteler
Toplam kayıt 10075, listelenen: 1601-1620
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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. ... -
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 ... -
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 ... -
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 ... -
Evaluation of the role of the pyrolysis temperature in straw biomass samples and characterization of the oils by GUMS
(American Chemical Society, 2008)The aim of this study is to investigate the variation of thermal conversion of agricultural wastes in a fixed bed reactor with temperature and elucidating the chemical structure of oil products formed during the process. ... -
The Evaluation of Mesoporous Materials as Catalyst in Fast Pyrolysis of Wheat Straw
(Taylor & Francis Inc, 2015)In this study, wheat straw was chosen as a biomass sample and the fast pyrolysis of this sample was carried out with or without catalyst at different conditions in a well-swept fixed-bed reactor. Experiments were carried ... -
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 ... -
Catalytic Pyrolysis of Biomass: Yields and Characterization of the Products
(Amer Soc Mechanical Engineers, 2009)Terpene hydrocarbons are high energy capacity hydrocarbons. The most known terpenoid biomass is Euphorbiaccae family. Euphorbia rigida, a member of Euphorbiaccae, was used as the biomass feedsock and natural zeolite was ... -
Leaching of F-type fly ash based geopolymers
(Elsevier Science BV, 2012)Geopolymers are the synthetic analogues of natural zeolitic materials. Geopolymeric materials possess excellent mechanical properties, including fire and acid resistance. These properties make geopolymers an alternative ... -
An experimental study on the mechanical and microstructural properties of geopolymers
(Elsevier Science BV, 2012)Geopolymer is a new class of inorganic polymer synthesized by activation of an aluminosilicate source with an alkaline hydroxide or silicate solution. In recent years, geopolymeric materials have attracted much more attention ... -
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 ... -
Humulus lupulus As a Raw Material for Bio-oil Production via Slow Pyrolysis
(Gazi University, 2017)Humulus lupulus, a kind of hop plant agricultural waste was pyrolysed in a fixed bed reactor with a heating rate of 10 degrees C min(-1) in the presence of N-2 atmosphere. The effect of pyrolysis temperature was investigated ... -
Pyrolysis Kinetics and Thermal Decomposition Behavior of Polycarbonate - a Tga-Ftir Study
(Vinca Inst Nuclear Sci, 2014)This study covers the thermal degradation of polycarbonate by means of Thermogravimetric Analyzer coupled with Fourier transform infrared spectrometer (TGA-FTIR). Thermogravimetric analysis of polycarbonate was carried out ... -
Kinetics of the Hydration of Ethylene Oxide in the Presence of Heterogeneous Catalyst
(American Chemical Society, 2009)Kinetic data on the hydration of ethylene oxide was obtained from both uncatalyzed and heterogeneously catalyzed reactions using a pressurized batch reactor. Amberjet 4200/HCO(3)(-) was used as the heterogeneous catalyst, ... -
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 ... -
Investigation of the Dissolution Kinetics of Meta-Kaolin in H2SO4 Solution
(American Chemical Society, 2010)Kaolin with a given size distribution was calcined at 1023 K for 2 h then digested in 3 0, 4 5, and 60 N sulfuric acid at constant temperatures within the range 328-358 K The samples taken from the solution at predetermined ... -
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 ... -
Impregnation of 12-tungstophosphoric acid on tonsil: An effective catalyst for esterification of formic acid with n-butyl alcohol and kinetic modeling
(Elsevier Science BV, 2014)Esterification of formic acid with n-butanol was catalyzed by dodecatungstophosphoric acid, H-3 PW12O40 (DTP) impregnated on tonsil earth. A series of catalysts containing 10%, 20% and 30% of DTP on tonsil earth were ... -
Kinetic Study of the Hydration of Propylene Oxide in the Presence of Heterogeneous Catalyst
(Assoc Chemical Eng, 2017)The kinetics of the hydration of propylene oxide was studied using a pres-surized batch reactor for both uncatalyzed and heterogeneously catalyzed reactions. Lewatit MonoPlus M500/HCO3- was used as heterogeneous cat-alyst, ... -
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 ...