Carbonization of coals to produce anisotropic cokes. 1. Modifying activities of some additives in the co-carbonization of low-rank coals

Isao Mochida, Hideichi Matsuoka, Yozo Korai, Hiroshi Fujitsu, Kenjiro Takeshita

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Using low-rank coals, the modifying activities of some petroleum, coal tar and aromatic hydrocarbon additives have been examined to find procedures for their utilization in the preparation of blast furnace coke. Petroleum pitch, especially after hydrogenation, exhibited excellent modifying activity even with non-fusible coals. In contrast, the activity of coal tar was very limited with such coals. The napththenic component, revealed by n.m.r. of the additives, appears to be important in the co-carbonization by inducing fusibility and anisotropic development in such coals. Co-carbonization to recover the dehydrogenated additives was attempted. However, there was no development of the anisotropy in the resultant coke by dissolution of the coal particles although the coal particles were firmly fixed in the matrix. Acid-refluxing treatment of non-fusible coals was found to enhance their modification susceptibility, indicating that some of the acid-soluble mineral matter is important in the thermal depolymerization or fusion process of the coal.

Original languageEnglish
Pages (from-to)587-594
Number of pages8
JournalFuel
Volume61
Issue number7
DOIs
Publication statusPublished - Jan 1 1982

Fingerprint

Coal
Carbonization
Coal Tar
Coal tar
Petroleum
Coke
Crude oil
Aromatic Hydrocarbons
Depolymerization
Acids
Aromatic hydrocarbons
Blast furnaces
Hydrogenation
Minerals
Dissolution
Anisotropy
Fusion reactions

All Science Journal Classification (ASJC) codes

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

Cite this

Carbonization of coals to produce anisotropic cokes. 1. Modifying activities of some additives in the co-carbonization of low-rank coals. / Mochida, Isao; Matsuoka, Hideichi; Korai, Yozo; Fujitsu, Hiroshi; Takeshita, Kenjiro.

In: Fuel, Vol. 61, No. 7, 01.01.1982, p. 587-594.

Research output: Contribution to journalArticle

Mochida, Isao ; Matsuoka, Hideichi ; Korai, Yozo ; Fujitsu, Hiroshi ; Takeshita, Kenjiro. / Carbonization of coals to produce anisotropic cokes. 1. Modifying activities of some additives in the co-carbonization of low-rank coals. In: Fuel. 1982 ; Vol. 61, No. 7. pp. 587-594.
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