Authors:
I. PitkänenUniversity of Jyväskylä Department of Chemistry P.O. Box 35 Fin-40351 Jyväskylä P.O. Box 35 Fin-40351 Jyväskylä

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J. HuttunenUniversity of Jyväskylä Department of Chemistry P.O. Box 35 Fin-40351 Jyväskylä P.O. Box 35 Fin-40351 Jyväskylä

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H. HalttunenUniversity of Jyväskylä Department of Chemistry P.O. Box 35 Fin-40351 Jyväskylä P.O. Box 35 Fin-40351 Jyväskylä

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R. VesterinenVTT Energy P.O. Box 1603 Fin-40101 Jyväskylä Finland P.O. Box 1603 Fin-40101 Jyväskylä Finland

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Abstract  

FTIR spectrometry combined with TG provides information regarding mass changes in a sample and permits qualitative identification of the gases evolved during thermal degradation. Various fuels were studied: coal, peat, wood chips, bark, reed canary grass and municipal solid waste. The gases evolved in a TG analyser were transferred to the FTIR via a heated teflon line. The spectra and thermoanalytical curves indicated that the major gases evolved were carbon dioxide and water, while there were many minor gases, e.g. carbon monoxide, methane, ethane, methanol, ethanol, formic acid, acetic acid and formaldehyde. Separate evolved gas spectra also revealed the release of ammonia from biomasses and peat. Sulphur dioxide and nitric oxide were found in some cases. The evolution of the minor gases and water parallelled the first step in the TG curve. Solid fuels dried at 100C mainly lost water and a little ammonia.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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Geopolymers

Inorganic polymeric new materials

Author:
J. Davidovits