An Investigation of the Kinetics and Oxidative Thermodegradation Properties of Waste Telephone Pole Samples Treated with Metal Salts

Date

2013-12-02

Author

Yorulmaz, S. Y.
Atımtay, Aysel

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

162
views

0
downloads

In the present study, combustion mechanisms, activation energy, and exponential constants were investigated for natural pine and acid copper chromate impregnated telephone pole. Oxidative thermodegradation was carried out in air environment at different heating rates by using thermogravimetric analysis. In order to calculate thermal kinetics, the Coats Redfern method was used. There were less flammable products, lower weight losses in the main oxidation region, a decrease in the maximum weight loss temperatures, and more char formation for treated samples as compared to untreated samples. In other words, due to treatment of wood with acid copper chromate, thermal properties of wood changed.

Subject Keywords

Acid copper chromate, Activation energy, Biomass, Thermogravimetric analysis, Waste wood

URI

https://hdl.handle.net/11511/29969

Journal

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

DOI

https://doi.org/10.1080/15567036.2010.533335

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Investigation of Combustion Kinetics of Five Waste Wood Samples with Thermogravimetric Analysis Yorulmaz, Sema Yurdakul; Atımtay, Aysel (2007-02-24) In the present study, combustion mechanisms, thermal kinetics, and phases of combustion were investigated for untreated pine and treated MDF, plywood and particleboard samples. Waste wood samples were combusted in air at 10, 20 and 30 degrees C/min heating rates in TGA. As a result of TG analysis, thermal decomposition of treated samples was observed at lower temperatures as compared to the untreated pine sample because of the catalyzing effects of the chemicals in the samples. Therefore, there were less fl...
A theoretical study on vomitoxin and its tautomers Türker, Burhan Lemi; Guemues, Selcuk (Elsevier BV, 2009-04-15) In the present work, the structural and electronic properties of vomitoxin (deoxynivalenol, a mycotoxin) and all of its possible tautomers have been investigated by the application of B3LYP/6-31 G(d,p) type quantum chemical calculations. According to the results of the calculations, tautomer V-4 has been found to be the most stable one among all the structures both in the gas and aqueous phases. The calculations also indicated that, vomitoxin and V-2 possess the deepest and the highest lying HOMO levels, re...
An investigation into the thermal behavior of coals Kök, Mustafa Verşan (2002-10-01) The thermal behavior of 4 coal samples was investigated using simultaneous thermogravimetry (TG/DTG) and differential thermal analysis (DTA) methods. Upon heating the coals in an inert atmosphere up to 800degreesC, 31.44-43.82% weight loss occurs. The 2 temperature regions of increased chemical reactivity are evident in the coal samples studied Two different models determined kinetic analysis of the samples, and the results are discussed.
Kinetic analysis of crude oils by a weighted mean activation energy approach Kök, Mustafa Verşan (1997-01-01) A weighted mean activation energy method was applied to describe the reactivity and combustibility of crude oils via simultaneous TG/DTG. Thermal experiments were conducted with a non-isothermal method at a heating rate of 10 degrees C min(-1) with excess air. Reaction rates increased progressively with increasing temperature. The rate data were fitted to an Arrhenius equation; the plots showed three distinct reaction regions. Weighted mean activation energies (E(wm)), of the crude oils were calculated and ...
An Approach to the synyhesis of novel pyrrole fused heterocycles Öztürk, Uğur Başak; Balcı, Metin; Department of Chemistry (2016) Pyrrole and pyrrole derivatives are prominent building blocks in organic synthesis due to their biological activities and natural occurrence. For the formation of pyrrole derivatives, electrophilic cyclizations are considered efficient and significant processes. In this thesis, novel N-alkynyl-2-phenyl-substituted pyrrole derivatives were synthesized and electrophilic cyclization reactions of these compounds were investigated. Catalyst such as AuCl3, AuBr3, I2, ICl, FeCl3, InCl3 and Cu(OTf)2 were used for t...

Citation Formats

S. Y. Yorulmaz and A. Atımtay, “An Investigation of the Kinetics and Oxidative Thermodegradation Properties of Waste Telephone Pole Samples Treated with Metal Salts,” ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, pp. 2257–2263, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/29969.