Soot Formation over Zinc Ferrite High-Temperature Desulfurization Sorbent

Eiji Sasaoka; Yukimasa Iwamoto; Shigeru Hirano; Md Azhar Uddin; Yusaku Sakata

doi:10.1021/ef00050a020

Soot Formation over Zinc Ferrite High-Temperature Desulfurization Sorbent

Eiji Sasaoka, Yukimasa Iwamoto, Shigeru Hirano, Md Azhar Uddin, Yusaku Sakata

Institute for Global Human Resource Development

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

29 Citations (Scopus)

Abstract

Soot formation over zinc ferrite high-temperature desulfurization sorbents was examined. When active zinc ferrites were used in simulated coal-derived gases for fuel cells, a large amount of soot was formed over the ferrites. This soot formation decreased with the increase of reaction temperature. This soot formation was inhibited by H₂O and CO₂ and accelerated by H₂ and CO. These dependencies of the rate of soot formation on the concentration of H₂O, CO₂, H₂, and CO can be expressed by six experimental equations. Carbides (Fe₃C- and Fe₃C-like compound, Fe_xC) were found in the sample over which soot was formed. Fibrous ZnO was formed over the surface of the sample when the sample ZnFe₂O₄ was converted to carbides (Fe₃C and Fe_xC). It is thought that the carbides and the soot were produced via a surface active carbon.

Original language	English
Pages (from-to)	344-353
Number of pages	10
Journal	Energy and Fuels
Volume	9
Issue number	2
DOIs	https://doi.org/10.1021/ef00050a020
Publication status	Published - Mar 1995

ASJC Scopus subject areas

Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology

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10.1021/ef00050a020

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abstract = "Soot formation over zinc ferrite high-temperature desulfurization sorbents was examined. When active zinc ferrites were used in simulated coal-derived gases for fuel cells, a large amount of soot was formed over the ferrites. This soot formation decreased with the increase of reaction temperature. This soot formation was inhibited by H2O and CO2 and accelerated by H2 and CO. These dependencies of the rate of soot formation on the concentration of H2O, CO2, H2, and CO can be expressed by six experimental equations. Carbides (Fe3C- and Fe3C-like compound, FexC) were found in the sample over which soot was formed. Fibrous ZnO was formed over the surface of the sample when the sample ZnFe2O4 was converted to carbides (Fe3C and FexC). It is thought that the carbides and the soot were produced via a surface active carbon.",

author = "Eiji Sasaoka and Yukimasa Iwamoto and Shigeru Hirano and Uddin, {Md Azhar} and Yusaku Sakata",

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T1 - Soot Formation over Zinc Ferrite High-Temperature Desulfurization Sorbent

AU - Sasaoka, Eiji

AU - Iwamoto, Yukimasa

AU - Hirano, Shigeru

AU - Uddin, Md Azhar

AU - Sakata, Yusaku

PY - 1995/3

Y1 - 1995/3

N2 - Soot formation over zinc ferrite high-temperature desulfurization sorbents was examined. When active zinc ferrites were used in simulated coal-derived gases for fuel cells, a large amount of soot was formed over the ferrites. This soot formation decreased with the increase of reaction temperature. This soot formation was inhibited by H2O and CO2 and accelerated by H2 and CO. These dependencies of the rate of soot formation on the concentration of H2O, CO2, H2, and CO can be expressed by six experimental equations. Carbides (Fe3C- and Fe3C-like compound, FexC) were found in the sample over which soot was formed. Fibrous ZnO was formed over the surface of the sample when the sample ZnFe2O4 was converted to carbides (Fe3C and FexC). It is thought that the carbides and the soot were produced via a surface active carbon.

AB - Soot formation over zinc ferrite high-temperature desulfurization sorbents was examined. When active zinc ferrites were used in simulated coal-derived gases for fuel cells, a large amount of soot was formed over the ferrites. This soot formation decreased with the increase of reaction temperature. This soot formation was inhibited by H2O and CO2 and accelerated by H2 and CO. These dependencies of the rate of soot formation on the concentration of H2O, CO2, H2, and CO can be expressed by six experimental equations. Carbides (Fe3C- and Fe3C-like compound, FexC) were found in the sample over which soot was formed. Fibrous ZnO was formed over the surface of the sample when the sample ZnFe2O4 was converted to carbides (Fe3C and FexC). It is thought that the carbides and the soot were produced via a surface active carbon.

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Soot Formation over Zinc Ferrite High-Temperature Desulfurization Sorbent

Abstract

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