Role of H2O in oxidation of spent high-temperature desulfurization sorbent Fe2O3 and CuO in the presence of O2

Eiji Sasaoka; Makoto Hatori; Hiroyuki Yoshimura; Caili Su; Md Azhar Uddin

doi:10.1021/ie000940s

Role of H₂O in oxidation of spent high-temperature desulfurization sorbent Fe₂O₃ and CuO in the presence of O₂

Eiji Sasaoka, Makoto Hatori, Hiroyuki Yoshimura, Caili Su, Md Azhar Uddin

Institute for Global Human Resource Development

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Abstract

To develop an easily regenerable high-temperature desulfurization sorbent, the oxidation of spent Fe₂O₃ and CuO sorbents in the presence of O₂ and H₂O was studied: The effect of H₂O on the oxidation of the spent Fe₂O₃ and CuO was examined using a temperature-programmed reduction technique and isotopic H₂¹⁸O. In this study, it was found that H₂O directly contributed to the oxidation of the spent metal oxides in the presence of O₂. The oxidation of the spent metal oxides (containing metal sulfide Me_xS_y) in the presence of 10% H₂O and 10% O₂ could be explained by the following two reactions: Me_xS_y + (z + 2y)H₂O ⇔ Me_xO_z + SO₂ + (z + y)H₂ and (z + 2y)H₂ + {(z + 2y)/2}O₂ ⇒ (z + 2y)H₂O.

Original language	English
Pages (from-to)	2512-2517
Number of pages	6
Journal	Industrial and Engineering Chemistry Research
Volume	40
Issue number	11
DOIs	https://doi.org/10.1021/ie000940s
Publication status	Published - May 30 2001

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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@article{3b2c6c371c5d4796868f976ec837c5b8,

title = "Role of H2O in oxidation of spent high-temperature desulfurization sorbent Fe2O3 and CuO in the presence of O2",

abstract = "To develop an easily regenerable high-temperature desulfurization sorbent, the oxidation of spent Fe2O3 and CuO sorbents in the presence of O2 and H2O was studied: The effect of H2O on the oxidation of the spent Fe2O3 and CuO was examined using a temperature-programmed reduction technique and isotopic H218O. In this study, it was found that H2O directly contributed to the oxidation of the spent metal oxides in the presence of O2. The oxidation of the spent metal oxides (containing metal sulfide MexSy) in the presence of 10% H2O and 10% O2 could be explained by the following two reactions: MexSy + (z + 2y)H2O ⇔ MexOz + SO2 + (z + y)H2 and (z + 2y)H2 + {(z + 2y)/2}O2 ⇒ (z + 2y)H2O.",

author = "Eiji Sasaoka and Makoto Hatori and Hiroyuki Yoshimura and Caili Su and Uddin, {Md Azhar}",

year = "2001",

month = may,

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doi = "10.1021/ie000940s",

language = "English",

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journal = "Industrial and Engineering Chemistry Research",

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T1 - Role of H2O in oxidation of spent high-temperature desulfurization sorbent Fe2O3 and CuO in the presence of O2

AU - Sasaoka, Eiji

AU - Hatori, Makoto

AU - Yoshimura, Hiroyuki

AU - Su, Caili

AU - Uddin, Md Azhar

PY - 2001/5/30

Y1 - 2001/5/30

N2 - To develop an easily regenerable high-temperature desulfurization sorbent, the oxidation of spent Fe2O3 and CuO sorbents in the presence of O2 and H2O was studied: The effect of H2O on the oxidation of the spent Fe2O3 and CuO was examined using a temperature-programmed reduction technique and isotopic H218O. In this study, it was found that H2O directly contributed to the oxidation of the spent metal oxides in the presence of O2. The oxidation of the spent metal oxides (containing metal sulfide MexSy) in the presence of 10% H2O and 10% O2 could be explained by the following two reactions: MexSy + (z + 2y)H2O ⇔ MexOz + SO2 + (z + y)H2 and (z + 2y)H2 + {(z + 2y)/2}O2 ⇒ (z + 2y)H2O.

AB - To develop an easily regenerable high-temperature desulfurization sorbent, the oxidation of spent Fe2O3 and CuO sorbents in the presence of O2 and H2O was studied: The effect of H2O on the oxidation of the spent Fe2O3 and CuO was examined using a temperature-programmed reduction technique and isotopic H218O. In this study, it was found that H2O directly contributed to the oxidation of the spent metal oxides in the presence of O2. The oxidation of the spent metal oxides (containing metal sulfide MexSy) in the presence of 10% H2O and 10% O2 could be explained by the following two reactions: MexSy + (z + 2y)H2O ⇔ MexOz + SO2 + (z + y)H2 and (z + 2y)H2 + {(z + 2y)/2}O2 ⇒ (z + 2y)H2O.

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JF - Industrial and Engineering Chemistry Research

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ER -

Role of H₂O in oxidation of spent high-temperature desulfurization sorbent Fe₂O₃ and CuO in the presence of O₂

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