Carbonization of an anthracene oil extract of Akabira (Japan) coal

Yozo Korai, Hiroshi Fujitsu, Kenjiro Takeshita, Isao Mochida

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)


The carbonization of a non-hydrogenated extract (STC) from a low-rank coal (C, 83 wt%) of high fluidity was studied as single carbonizations and as co-carbonizations with additives, an objective being the production of needle-coke. The coke from STC had an optical texture of fine-grained mozaics; however, fractionation followed by co-carbonizations were effective in modifying carbonization properties. The lighter fraction of STC could give a coke with flow texture but in reduced yield. The addition of hydrogenated Ashland A240 pitch (HA240) in a quantity as low as 20% could effectively modify the carbonization properties of STC. A novel co-carbonization, in which an additive such as dihydroanthracene is recovered at the latter stage of the carbonization in the dehydrogenated form, was found to be effective also, although a relatively large amount of the additive was required. Among the non-hydrogenated additives, Ashland A240 pitch was the most effective in modifying the STC. The cocarbonization of fractionated STC reduced the quantity of additive required while maintaining a reasonable coke yield. Some practical aspects for the production of needle-coke from STC are discussed.

出版物ステータス出版済み - 12 1981


All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry


Korai, Y., Fujitsu, H., Takeshita, K., & Mochida, I. (1981). Carbonization of an anthracene oil extract of Akabira (Japan) coal. Fuel, 60(12), 1106-1114.