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Spravochnik koksokhimika. T. 3. Ulavlivanie i pererabotka khimicheskikh produktov koksovaniya
- Publisher
- Springer Journals
- Copyright
- Copyright © 2014 by Allerton Press, Inc.
- Subject
- Chemistry; Industrial Chemistry/Chemical Engineering
- ISSN
- 1068-364X
- eISSN
- 1934-8398
- DOI
- 10.3103/S1068364X14060027
- Publisher site
- See Article on Publisher Site
Abstract
The behavior of coal tars with different levels of pyrolysis in thermal fractionation is compared in the laboratory. The properties and group composition of the nonboiling residues (medium-temperature pitch) obtained by the distillation of coal tars at different temperatures, in comparable conditions, is investigated. The results indicate that the distillation of tars characterized by slight pyrolysis is accompanied by vigorous destruction processes, also affecting the α1 fraction (t = 335–350°C), with subsequent reactions among the destruction products, leading to active increase in the α1 and α2 fractions (t ≥ 350°C). This is a significant difference between tars characterized by light pyrolysis and considerable pyrolysis.
Journal
Coke and Chemistry – Springer Journals
Published: Sep 24, 2014