Coking technology using heavy oil residue and hyper coal

Yasushi Sekine; Fumitaka Sumomozawa; Takahiro Shishido

doi:10.2355/isijinternational.54.2446

Coking technology using heavy oil residue and hyper coal

Yasushi Sekine, Fumitaka Sumomozawa, Takahiro Shishido

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	2446-2453
Number of pages	8
Journal	ISIJ International
Volume	54
Issue number	11
DOIs	https://doi.org/10.2355/isijinternational.54.2446
Publication status	Published - 2014 Jan 1

Keywords

Caking additive
Coking
Hypercoal
Oil sand bitumen

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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