Analysis of chemical reaction in the voids of cokes using NMR gas imaging

Koji Saito; Kazuya Kunitomo; Kouichi Fukuda; Kenji Katoh; Ikuo Komaki

doi:10.2355/tetsutohagane1955.88.10_651

Analysis of chemical reaction in the voids of cokes using NMR gas imaging

Koji Saito, Kazuya Kunitomo, Kouichi Fukuda, Kenji Katoh, Ikuo Komaki

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

8 Citations (Scopus)

Abstract

The pore structure is very critical and sensitive to react with CO₂ in the case of cokes. But it is very difficult to detect the pore structure of cokes with nondestructive and high resolution because conventional porosimeter method can't detect macro pore (over 400 μm), and at the same time with destructive. We are at first demonstrating 3D-SPRITE imaging to detect the pore structure using SF₄ gas, before and after CO₂ reaction, (over 1 μm) with non destructive and the same pores, and then clarify the reaction mechanism. We found that the reaction rate of the cokes with CO₂ depends on the pore size and the critical pore size is over 100 μm.

Original language	English
Pages (from-to)	651-657
Number of pages	7
Journal	Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume	88
Issue number	10
DOIs	https://doi.org/10.2355/tetsutohagane1955.88.10_651
Publication status	Published - Oct 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

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10.2355/tetsutohagane1955.88.10_651

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abstract = "The pore structure is very critical and sensitive to react with CO2 in the case of cokes. But it is very difficult to detect the pore structure of cokes with nondestructive and high resolution because conventional porosimeter method can't detect macro pore (over 400 μm), and at the same time with destructive. We are at first demonstrating 3D-SPRITE imaging to detect the pore structure using SF4 gas, before and after CO2 reaction, (over 1 μm) with non destructive and the same pores, and then clarify the reaction mechanism. We found that the reaction rate of the cokes with CO2 depends on the pore size and the critical pore size is over 100 μm.",

author = "Koji Saito and Kazuya Kunitomo and Kouichi Fukuda and Kenji Katoh and Ikuo Komaki",

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T1 - Analysis of chemical reaction in the voids of cokes using NMR gas imaging

AU - Saito, Koji

AU - Kunitomo, Kazuya

AU - Fukuda, Kouichi

AU - Katoh, Kenji

AU - Komaki, Ikuo

PY - 2002/10

Y1 - 2002/10

N2 - The pore structure is very critical and sensitive to react with CO2 in the case of cokes. But it is very difficult to detect the pore structure of cokes with nondestructive and high resolution because conventional porosimeter method can't detect macro pore (over 400 μm), and at the same time with destructive. We are at first demonstrating 3D-SPRITE imaging to detect the pore structure using SF4 gas, before and after CO2 reaction, (over 1 μm) with non destructive and the same pores, and then clarify the reaction mechanism. We found that the reaction rate of the cokes with CO2 depends on the pore size and the critical pore size is over 100 μm.

AB - The pore structure is very critical and sensitive to react with CO2 in the case of cokes. But it is very difficult to detect the pore structure of cokes with nondestructive and high resolution because conventional porosimeter method can't detect macro pore (over 400 μm), and at the same time with destructive. We are at first demonstrating 3D-SPRITE imaging to detect the pore structure using SF4 gas, before and after CO2 reaction, (over 1 μm) with non destructive and the same pores, and then clarify the reaction mechanism. We found that the reaction rate of the cokes with CO2 depends on the pore size and the critical pore size is over 100 μm.

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Analysis of chemical reaction in the voids of cokes using NMR gas imaging

Abstract

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