Influence of gasification reaction of coke on sliding and dynamic contact angles of droplets in a blast furnace

Shinsuke Ogyu; Lichun Zheng; Xu Gao; Shigeru Ueda; Sohei Sukenaga; Shinya Kitamura

doi:10.2355/ISIJINTERNATIONAL.ISIJINT-2019-190

Influence of gasification reaction of coke on sliding and dynamic contact angles of droplets in a blast furnace

Shinsuke Ogyu, Lichun Zheng, Xu Gao, Shigeru Ueda, Sohei Sukenaga, Shinya Kitamura

Center for Mineral Processing and Metallurgy (CMPM)

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

1 Citation (Scopus)

Abstract

To enhance the descent of droplets in the coke bed of a blast furnace, the sliding angle of the water droplet and the advancing and receding contact angles at the time of sliding were measured. Coke used as a reducing agent in a blast furnace was employed as a substrate. Because the shape of the coke surface varies with the gasification reaction with CO₂, the coke substrate was treated with heat (1 273 K) in a CO/CO₂ atmosphere. Irregularities of approximately several micrometers were formed on the coke surface by the gasification reaction, and the sliding angle of the droplet decreased.

Original language	English
Pages (from-to)	1401-1408
Number of pages	8
Journal	Isij International
Volume	60
Issue number	7
DOIs	https://doi.org/10.2355/ISIJINTERNATIONAL.ISIJINT-2019-190
Publication status	Published - 2020

Keywords

Blast furnace
Coke
Dripping zone
Droplet motion
Dynamic contact angle
Surface roughness

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.2355/ISIJINTERNATIONAL.ISIJINT-2019-190

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title = "Influence of gasification reaction of coke on sliding and dynamic contact angles of droplets in a blast furnace",

abstract = "To enhance the descent of droplets in the coke bed of a blast furnace, the sliding angle of the water droplet and the advancing and receding contact angles at the time of sliding were measured. Coke used as a reducing agent in a blast furnace was employed as a substrate. Because the shape of the coke surface varies with the gasification reaction with CO2, the coke substrate was treated with heat (1 273 K) in a CO/CO2 atmosphere. Irregularities of approximately several micrometers were formed on the coke surface by the gasification reaction, and the sliding angle of the droplet decreased.",

keywords = "Blast furnace, Coke, Dripping zone, Droplet motion, Dynamic contact angle, Surface roughness",

author = "Shinsuke Ogyu and Lichun Zheng and Xu Gao and Shigeru Ueda and Sohei Sukenaga and Shinya Kitamura",

note = "Funding Information: Authors thanks to the member of research group Mechanisms and Control of Cohesive Zone Phenomena for Blast Furnace Permeability of ISIJ, for their appropriate advices. Publisher Copyright: {\textcopyright} 2020 Iron and Steel Institute of Japan. All rights reserved.",

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doi = "10.2355/ISIJINTERNATIONAL.ISIJINT-2019-190",

language = "English",

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pages = "1401--1408",

journal = "Transactions of the Iron and Steel Institute of Japan",

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T1 - Influence of gasification reaction of coke on sliding and dynamic contact angles of droplets in a blast furnace

AU - Ogyu, Shinsuke

AU - Zheng, Lichun

AU - Gao, Xu

AU - Ueda, Shigeru

AU - Sukenaga, Sohei

AU - Kitamura, Shinya

N1 - Funding Information: Authors thanks to the member of research group Mechanisms and Control of Cohesive Zone Phenomena for Blast Furnace Permeability of ISIJ, for their appropriate advices. Publisher Copyright: © 2020 Iron and Steel Institute of Japan. All rights reserved.

PY - 2020

Y1 - 2020

N2 - To enhance the descent of droplets in the coke bed of a blast furnace, the sliding angle of the water droplet and the advancing and receding contact angles at the time of sliding were measured. Coke used as a reducing agent in a blast furnace was employed as a substrate. Because the shape of the coke surface varies with the gasification reaction with CO2, the coke substrate was treated with heat (1 273 K) in a CO/CO2 atmosphere. Irregularities of approximately several micrometers were formed on the coke surface by the gasification reaction, and the sliding angle of the droplet decreased.

AB - To enhance the descent of droplets in the coke bed of a blast furnace, the sliding angle of the water droplet and the advancing and receding contact angles at the time of sliding were measured. Coke used as a reducing agent in a blast furnace was employed as a substrate. Because the shape of the coke surface varies with the gasification reaction with CO2, the coke substrate was treated with heat (1 273 K) in a CO/CO2 atmosphere. Irregularities of approximately several micrometers were formed on the coke surface by the gasification reaction, and the sliding angle of the droplet decreased.

KW - Blast furnace

KW - Coke

KW - Dripping zone

KW - Droplet motion

KW - Dynamic contact angle

KW - Surface roughness

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JO - Transactions of the Iron and Steel Institute of Japan

JF - Transactions of the Iron and Steel Institute of Japan

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Influence of gasification reaction of coke on sliding and dynamic contact angles of droplets in a blast furnace

Abstract

Keywords

ASJC Scopus subject areas

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