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 | |
| Publication status | Published - 2014 |
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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 journal › Article
}
TY - JOUR
T1 - Coking technology using heavy oil residue and hyper coal
AU - Sekine, Yasushi
AU - Sumomozawa, Fumitaka
AU - Shishido, Takahiro
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
KW - Caking additive
KW - Coking
KW - Hypercoal
KW - Oil sand bitumen
UR - http://www.scopus.com/inward/record.url?scp=84917694480&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84917694480&partnerID=8YFLogxK
U2 - 10.2355/isijinternational.54.2446
DO - 10.2355/isijinternational.54.2446
M3 - Article
AN - SCOPUS:84917694480
VL - 54
SP - 2446
EP - 2453
JO - ISIJ International
JF - ISIJ International
SN - 0915-1559
IS - 11
ER -