Preparation, modification, and characterization of pitches from apricot stones

E. Genceli, E. Apak, M. Razvigorova, N. Petrov, V. Minkova, E. Ekinci*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Apricot stones steam pyrolysis tar and mixtures with petroleum pitch were modified by sulfuric acid and heat treatment at various temperatures for the purpose of obtaining a raw material for the production of carbon-related materials. The products obtained were characterized by elemental analysis, total carbon contents, FTIR spectroscopic analysis, 1H and 13C NMR spectroscopic analyses, softening point measurement, and oxygen functional group content. During the acid and heat treatment, the reactions of polycondensation and polymerization occur. The heat-treatment modification of the pitches decreases the oxygen-containing groups and sulfur content and increases the content of aromatic structures. Chemical transformations and the removal of light components increase the softening point of the pitches. The results show that apricot stones tar with some additional modifications can be used as a raw material for the production of advanced carbon materials.

Original languageEnglish
Pages (from-to)97-107
Number of pages11
JournalFuel Processing Technology
Issue number2
Publication statusPublished - 20 Feb 2002


  • Functional groups
  • Heat treatment
  • Petroleum pitch
  • Pyrolysis
  • Tar


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