Thermal desorption of creosote remaining in used railroad ties: Investigation by TGA (thermogravimetric analysis) and Py-GC/MS (pyrolysis-gas chromatography/mass spectrometry)
| Autor: | Jeff Lloyd, Jae-Woo Kim, Pyoungchung Kim, Nicole Labbé |
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| Rok vydání: | 2016 |
| Předmět: |
Thermogravimetric analysis
020209 energy Thermal desorption 02 engineering and technology Thermal treatment 010501 environmental sciences 01 natural sciences Industrial and Manufacturing Engineering law.invention chemistry.chemical_compound law Desorption 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 0105 earth and related environmental sciences Civil and Structural Engineering Chromatography Chemistry Mechanical Engineering Levoglucosan Building and Construction Pollution Pyrolysis–gas chromatography–mass spectrometry General Energy Creosote Pyrolysis |
| Zdroj: | Energy. 96:294-302 |
| ISSN: | 0360-5442 |
| DOI: | 10.1016/j.energy.2015.12.061 |
| Popis: | A two-step thermal process, an initial thermal treatment at mild temperature followed by a fast pyrolysis step, was investigated to recover wood preservatives and produce preservatives-free wood for production of high quality bio-oil from used creosote-treated railroad ties. During the initial thermal treatment at temperature of 280 °C for 10–30 min, the treated wood ties underwent a 20–25% weight loss with energy yield (77–83%). Energy yield at 280 °C was lower than that at 200 and 250 °C (92–97%) but higher than that at the 300 °C (64–74%). Recovery level of creosote at 280 °C was comparable to that at 300 °C. Fast pyrolysis at 450 °C of the 280 °C-treated wood ties produced high amount of levoglucosan and phenolic compounds with a traceable amount (1.7–1.9% of the total peak area) of creosote compounds. |
| Databáze: | OpenAIRE |
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