Effect of Pressure on Carbonization of Coal Tar Pitch of Different Composition

Effect of Pressure on Carbonization of Coal Tar Pitch of Different Composition The effect of carbonization pressure for coal tar pitch of different composition on pyrolysis product properties is studied. The aim of the work is evaluation of dynamics and routes of forming the main coal tar pitch pyrolysis products under pressure and determination of pyrolysis product properties. It is established that with an increase in initial carbonizing pressure there is an increase in coke residue yield by 88.5 and 7.7% for low-temperature and high-temperature pitches respectively. The effect of α-fraction on final product microstructure is demonstrated. With an increase in α-fraction content by a factor of 3.7 the coke residue yield increases by 88.5, 60, and 55% for an initial pressure of 21, 11, and 1 bar respectively. It is revealed that with an increase in initial pressure there is an increase in primary product content and formation of new compounds within pyrolysis products is facilitated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Effect of Pressure on Carbonization of Coal Tar Pitch of Different Composition

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Publisher
Springer US
Copyright
Copyright © 2015 by Springer Science+Business Media New York
Subject
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-015-9832-2
Publisher site
See Article on Publisher Site

Abstract

The effect of carbonization pressure for coal tar pitch of different composition on pyrolysis product properties is studied. The aim of the work is evaluation of dynamics and routes of forming the main coal tar pitch pyrolysis products under pressure and determination of pyrolysis product properties. It is established that with an increase in initial carbonizing pressure there is an increase in coke residue yield by 88.5 and 7.7% for low-temperature and high-temperature pitches respectively. The effect of α-fraction on final product microstructure is demonstrated. With an increase in α-fraction content by a factor of 3.7 the coke residue yield increases by 88.5, 60, and 55% for an initial pressure of 21, 11, and 1 bar respectively. It is revealed that with an increase in initial pressure there is an increase in primary product content and formation of new compounds within pyrolysis products is facilitated.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Oct 13, 2015

References

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