Coking technology using heavy oil residue and hyper coal

Yasushi Sekine, Fumitaka Sumomozawa, Takahiro Shishido

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    Oil sand bitumen and hypercoal are examined as a caking additives to the mixture of strongly coking coal and non-slightly coking coal. Samples were coked, then their strength, crystallinity of the carbon structure, and an anisotropic microstructure were measured. Oil sand bitumen addition enhanced strength, but 15% addition caused a strength decline because of the formation of large pores and cracks. Hypercoal addition increased strength with increased its content. Correlation was observed between increased strength and the crystallinity of a carbon structure or the anisotropic microstructure. Results suggest that mutual melting occurred between a coal blend and a caking additive. Then the caking additive took a carbon structure with high crystallinity by coking, achieved a function as a binder material that connects coal-particle interfaces, and ultimately enhanced strength.

    Original languageEnglish
    Pages (from-to)2446-2453
    Number of pages8
    JournalISIJ International
    Volume54
    Issue number11
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    asphalt
    Coal
    Coking
    Crude oil
    Oil sands
    Carbon
    Microstructure
    Binders
    Melting
    Cracks

    Keywords

    • Caking additive
    • Coking
    • Hypercoal
    • Oil sand bitumen

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Chemistry
    • Metals and Alloys

    Cite this

    Coking technology using heavy oil residue and hyper coal. / Sekine, Yasushi; Sumomozawa, Fumitaka; Shishido, Takahiro.

    In: ISIJ International, Vol. 54, No. 11, 2014, p. 2446-2453.

    Research output: Contribution to journalArticle

    Sekine, Yasushi ; Sumomozawa, Fumitaka ; Shishido, Takahiro. / Coking technology using heavy oil residue and hyper coal. In: ISIJ International. 2014 ; Vol. 54, No. 11. pp. 2446-2453.
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