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Titolo:
EFFECT OF IRON-ORE SHAPE ON GASEOUS REDUCTION RATE
Autore:
KANG HW; CHUNG WS; MURAYAMA T; ONO Y;
Indirizzi:
RES INST IND SCI & TECHNOL,SMELTING REDUCT RES TEAM POHANG 790600 SOUTH KOREA PUSAN NATL UNIV,COLL ENGN,DEPT ENGN MET PUSAN 609735 SOUTH KOREA KYUSHU UNIV,FAC ENGN,DEPT MAT SCI & ENGN,HIGASHI KU FUKUOKA 8128581 JAPAN
Titolo Testata:
ISIJ international
fascicolo: 11, volume: 38, anno: 1998,
pagine: 1194 - 1200
SICI:
0915-1559(1998)38:11<1194:EOISOG>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Keywords:
SHAPE FACTOR; REDUCTION RATE; IRON ORE; NONSPHERICAL PARTICLE; NONSPHERICAL RADIUS; UNREACTED-CORE MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
H.W. Kang et al., "EFFECT OF IRON-ORE SHAPE ON GASEOUS REDUCTION RATE", ISIJ international, 38(11), 1998, pp. 1194-1200

Abstract

In order to clarify the effect of particle shape on the gaseous reduction rate of iron ores, iron oxide pellets of various shapes includingthe long cylindrical- and the disc shape are reduced with 10%CO-90%CO2 gas mixture. Experimental results show that the reduction rate of the disc-shaped particle is the fastest among all and the long cylindrical particle follows. The experimental data are analyzed by the unreacted-core model for non-spherical particle proposed by authors in the previous paper. According to the analysis, this model is applicable for the non-spherical iron ore of the cylindrical shape within the ratio range of the height to the cylindrical diameter from 0.5 to 2 while theparticles of the long cylindrical- and disc-shaped particle out of this range are problematic applying the model. Based on the review of the experimental- and analysis results, the kinetic behavior concept forthe non-spherical particle including the long cylindrical- and disc-shaped particles is discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 10:45:56