Investigation of the simultaneous injection of charcoal and coal into the blast furnace raceway by the 3D multiphase model

Jose Adilson de Castro; Hiroshi Nogami; Jun Ichiro Yagi; Cyro Takano; Marcelo Breda Mourão; Alexandre Jose da Silva

Investigation of the simultaneous injection of charcoal and coal into the blast furnace raceway by the 3D multiphase model

Jose Adilson de Castro, Hiroshi Nogami, Jun Ichiro Yagi, Cyro Takano, Marcelo Breda Mourão, Alexandre Jose da Silva

Division of Process and System Engineering

Research output: Contribution to conference › Paper › peer-review

4 Citations (Scopus)

Abstract

In this paper the multiphase transient multi-dimensional mathematical model of the blast furnace is applied to analyze the coke based blast furnace process operating with simultaneous injection of pulverized coal and charcoal. Simultaneous injection of pulverized charcoal and coal has an advantage of increasing combustion efficiency in the raceway and, in addition, allows the use of coal brands with higher sulfur content. Therefore, these technologies attract increasing attention for reducing the hot metal cost. Three cases of coke based operations were analyzed: a) with pulverized coal injection at 200kg/thm, b) with pulverized charcoal injection at 200kg/thm and c) with pulverized coal 200kg/thm and charcoal injection at 50kg/thm. Simulation results suggested that higher amount of pulverized coal could be obtained if the oxygen of the blast is enriched. These results also reveled that the coke rate can be decreased to around 210 kg/thm keeping smooth operation.

Original language	English
Pages	165-168
Number of pages	4
Publication status	Published - 2006 Dec 1
Event	4th International Congress on the Science and Technology of Ironmaking, ICSTI 2006 - Osaka, Japan Duration: 2006 Nov 26 → 2006 Nov 30

Other

Other	4th International Congress on the Science and Technology of Ironmaking, ICSTI 2006
Country	Japan
City	Osaka
Period	06/11/26 → 06/11/30

ASJC Scopus subject areas

Metals and Alloys

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Investigation of the simultaneous injection of charcoal and coal into the blast furnace raceway by the 3D multiphase model. / de Castro, Jose Adilson; Nogami, Hiroshi; Yagi, Jun Ichiro; Takano, Cyro; Mourão, Marcelo Breda; da Silva, Alexandre Jose.

2006. 165-168 Paper presented at 4th International Congress on the Science and Technology of Ironmaking, ICSTI 2006, Osaka, Japan.

Research output: Contribution to conference › Paper › peer-review

de Castro, Jose Adilson ; Nogami, Hiroshi ; Yagi, Jun Ichiro ; Takano, Cyro ; Mourão, Marcelo Breda ; da Silva, Alexandre Jose. / Investigation of the simultaneous injection of charcoal and coal into the blast furnace raceway by the 3D multiphase model. Paper presented at 4th International Congress on the Science and Technology of Ironmaking, ICSTI 2006, Osaka, Japan.4 p.

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abstract = "In this paper the multiphase transient multi-dimensional mathematical model of the blast furnace is applied to analyze the coke based blast furnace process operating with simultaneous injection of pulverized coal and charcoal. Simultaneous injection of pulverized charcoal and coal has an advantage of increasing combustion efficiency in the raceway and, in addition, allows the use of coal brands with higher sulfur content. Therefore, these technologies attract increasing attention for reducing the hot metal cost. Three cases of coke based operations were analyzed: a) with pulverized coal injection at 200kg/thm, b) with pulverized charcoal injection at 200kg/thm and c) with pulverized coal 200kg/thm and charcoal injection at 50kg/thm. Simulation results suggested that higher amount of pulverized coal could be obtained if the oxygen of the blast is enriched. These results also reveled that the coke rate can be decreased to around 210 kg/thm keeping smooth operation.",

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AU - de Castro, Jose Adilson

AU - Nogami, Hiroshi

AU - Yagi, Jun Ichiro

AU - Takano, Cyro

AU - Mourão, Marcelo Breda

AU - da Silva, Alexandre Jose

PY - 2006/12/1

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N2 - In this paper the multiphase transient multi-dimensional mathematical model of the blast furnace is applied to analyze the coke based blast furnace process operating with simultaneous injection of pulverized coal and charcoal. Simultaneous injection of pulverized charcoal and coal has an advantage of increasing combustion efficiency in the raceway and, in addition, allows the use of coal brands with higher sulfur content. Therefore, these technologies attract increasing attention for reducing the hot metal cost. Three cases of coke based operations were analyzed: a) with pulverized coal injection at 200kg/thm, b) with pulverized charcoal injection at 200kg/thm and c) with pulverized coal 200kg/thm and charcoal injection at 50kg/thm. Simulation results suggested that higher amount of pulverized coal could be obtained if the oxygen of the blast is enriched. These results also reveled that the coke rate can be decreased to around 210 kg/thm keeping smooth operation.

AB - In this paper the multiphase transient multi-dimensional mathematical model of the blast furnace is applied to analyze the coke based blast furnace process operating with simultaneous injection of pulverized coal and charcoal. Simultaneous injection of pulverized charcoal and coal has an advantage of increasing combustion efficiency in the raceway and, in addition, allows the use of coal brands with higher sulfur content. Therefore, these technologies attract increasing attention for reducing the hot metal cost. Three cases of coke based operations were analyzed: a) with pulverized coal injection at 200kg/thm, b) with pulverized charcoal injection at 200kg/thm and c) with pulverized coal 200kg/thm and charcoal injection at 50kg/thm. Simulation results suggested that higher amount of pulverized coal could be obtained if the oxygen of the blast is enriched. These results also reveled that the coke rate can be decreased to around 210 kg/thm keeping smooth operation.

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