Effect of polymeric additives to coal tar pitch on carbonization behaviour and optical texture of resultant cokes

Tatiana Brzozowska , Janusz Zieliński , Jacek Machnikowski


Homogeneous compositions of coal tar pitch with 10\% addition of various polymers were prepared under relatively mild conditions. The effect of a polymer on properties of composition and yield and optical texture of resultant semi-coke was assessed. There was no correlation between softening point or toluene insoluble content and carbonization yield. The addition of cumarone-indene resin, polystyrene, poly(ethylene-terephthalate), polypropylene and polysaccharide resulted in an increase in carbonization yield by 5–3\%. Pitch-polymer compositions gave semi-coke of less homogeneous optical texture compared to parent coal tar pitch coke. Poly(vinyl chloride) was the only polymer which clearly improved the development of anisotropy on carbonization. The addition of polypropylene, polysaccharide and butadiene–styrene copolymer contributed to the deterioration of the optical texture.
Author Tatiana Brzozowska ICh
Tatiana Brzozowska,,
- The Institute of Chemistry
, Janusz Zieliński ICh
Janusz Zieliński,,
- The Institute of Chemistry
, Jacek Machnikowski
Jacek Machnikowski,,
Journal seriesJournal of Analytical and Applied Pyrolysis, ISSN 0165-2370
Issue year1998
Keywords in EnglishCoal tar pitch, Co-carbonization, Coke, Optical texture, polymers, Pyrolysis
URL http://www.sciencedirect.com/science/article/pii/S0165237098001016
Score (nominal)30
Publication indicators WoS Impact Factor [Impact Factor WoS]: 2006 = 1.412 (2) - 2007=2.41 (5)
Citation count*53 (2015-05-24)
Share Share

Get link to the record

* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.