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

Yozo Korai, Hiroshi Fujitsu, Kenjiro Takeshita, Isao Mochida

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1106-1114
Number of pages9
JournalFuel
Volume60
Issue number12
DOIs
Publication statusPublished - Jan 1 1981

Fingerprint

Coal
Anthracene
Carbonization
Oils
Coke
Needles
Textures
anthracene
Fluidity
Fractionation

All Science Journal Classification (ASJC) codes

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

Cite this

Korai, Y., Fujitsu, H., Takeshita, K., & Mochida, I. (1981). Carbonization of an anthracene oil extract of Akabira (Japan) coal. Fuel, 60(12), 1106-1114. https://doi.org/10.1016/0016-2361(81)90062-4

Carbonization of an anthracene oil extract of Akabira (Japan) coal. / Korai, Yozo; Fujitsu, Hiroshi; Takeshita, Kenjiro; Mochida, Isao.

In: Fuel, Vol. 60, No. 12, 01.01.1981, p. 1106-1114.

Research output: Contribution to journalArticle

Korai, Y, Fujitsu, H, Takeshita, K & Mochida, I 1981, 'Carbonization of an anthracene oil extract of Akabira (Japan) coal', Fuel, vol. 60, no. 12, pp. 1106-1114. https://doi.org/10.1016/0016-2361(81)90062-4
Korai Y, Fujitsu H, Takeshita K, Mochida I. Carbonization of an anthracene oil extract of Akabira (Japan) coal. Fuel. 1981 Jan 1;60(12):1106-1114. https://doi.org/10.1016/0016-2361(81)90062-4
Korai, Yozo ; Fujitsu, Hiroshi ; Takeshita, Kenjiro ; Mochida, Isao. / Carbonization of an anthracene oil extract of Akabira (Japan) coal. In: Fuel. 1981 ; Vol. 60, No. 12. pp. 1106-1114.
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