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  • 1 Tallinn University of Technology Laboratory of Inorganic Materials Tallinn Estonia 19086 Ehitajate tee 5 Tallinn Estonia 19086 Ehitajate tee 5
  • | 2 University of Chemical Technology and Metallurgy Sofia Bulgaria 1756 8 Kl. Ohridski Blvd Sofia Bulgaria 1756 8 Kl. Ohridski Blvd
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Abstract  

Coupled TG-FTIR technique was used for identification of gaseous compounds evolved at thermal treatment of six coal samples from different deposits (Bulgaria, Russia, Ukraine). The experiments were carried out under dynamic heating conditions up to 900C at heating rates of 5, 10 or 50 K min–1 in a stream of dry air. The emission of CO2, H2O, CO, SO2, COS, methane, methanol, formic acid, formaldehyde, acetaldehyde, chlorobenzene was clearly identified in FTIR spectra of the samples studied. The formation of ethanol, ethane, ethylene and p-xylene, at least on the level of traces, was also identified. At the heating rate of 5C min–1 the temperature of maximum intensities of the characteristic peaks of COS was 270C, of formaldehyde, formic acid, ethane and methanol 330C, of SO2, CO, acetic acid, ethylene and p-xylene 400C and of chlorobenzene 500C. At 10C min–1 and 50C min–1 these temperatures were shifted, respectively, by 70–300C and 150–450C towards higher temperatures and the respective absorption bands in FTIR spectra were, as a rule, more intensive.

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
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)