Modification of ZnO-TiO2 high-temperature desulfurization sorbent by ZrO2 addition

Eiji Sasaoka; Norimasa Sada; Akifumi Manabe; Md Azhar Uddin; Yusaku Sakata

Modification of ZnO-TiO₂ high-temperature desulfurization sorbent by ZrO₂ addition

Eiji Sasaoka, Norimasa Sada, Akifumi Manabe, Md Azhar Uddin, Yusaku Sakata

Institute for Global Human Resource Development

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

45 Citations (Scopus)

Abstract

To develop a highly reactive and easily regenerable zinc oxide high-temperature desulfurization sorbent, a modification of ZnO-TiO₂ by addition of ZrO₂ was studied. The metal oxides ZnO -TiO₂-ZrO₂ were prepared by a coprecipitation method: the amount of ZnO was a fixed 50 mol % of the sample. In this study, it was found that the addition of 5 or 10 mol % ZrO₂ to 50 mol % ZnO-50 mol % TiO₂ greatly improved the reactivity for H₂S removal. Furthermore, the addition of ZrO₂ improved its regenerability: the temperature for the regeneration of the sample was decreased to ca. 40 °C in the absence of H₂O and ca. 75 °C in the presence of 10% H₂O by the addition of 10% ZrO₂.

Original language	English
Pages (from-to)	958-963
Number of pages	6
Journal	Industrial and Engineering Chemistry Research
Volume	38
Issue number	3
Publication status	Published - Dec 1 1999

ASJC Scopus subject areas

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

Cite this

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title = "Modification of ZnO-TiO2 high-temperature desulfurization sorbent by ZrO2 addition",

abstract = "To develop a highly reactive and easily regenerable zinc oxide high-temperature desulfurization sorbent, a modification of ZnO-TiO2 by addition of ZrO2 was studied. The metal oxides ZnO -TiO2-ZrO2 were prepared by a coprecipitation method: the amount of ZnO was a fixed 50 mol % of the sample. In this study, it was found that the addition of 5 or 10 mol % ZrO2 to 50 mol % ZnO-50 mol % TiO2 greatly improved the reactivity for H2S removal. Furthermore, the addition of ZrO2 improved its regenerability: the temperature for the regeneration of the sample was decreased to ca. 40 °C in the absence of H2O and ca. 75 °C in the presence of 10% H2O by the addition of 10% ZrO2.",

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T1 - Modification of ZnO-TiO2 high-temperature desulfurization sorbent by ZrO2 addition

AU - Sasaoka, Eiji

AU - Sada, Norimasa

AU - Manabe, Akifumi

AU - Uddin, Md Azhar

AU - Sakata, Yusaku

PY - 1999/12/1

Y1 - 1999/12/1

N2 - To develop a highly reactive and easily regenerable zinc oxide high-temperature desulfurization sorbent, a modification of ZnO-TiO2 by addition of ZrO2 was studied. The metal oxides ZnO -TiO2-ZrO2 were prepared by a coprecipitation method: the amount of ZnO was a fixed 50 mol % of the sample. In this study, it was found that the addition of 5 or 10 mol % ZrO2 to 50 mol % ZnO-50 mol % TiO2 greatly improved the reactivity for H2S removal. Furthermore, the addition of ZrO2 improved its regenerability: the temperature for the regeneration of the sample was decreased to ca. 40 °C in the absence of H2O and ca. 75 °C in the presence of 10% H2O by the addition of 10% ZrO2.

AB - To develop a highly reactive and easily regenerable zinc oxide high-temperature desulfurization sorbent, a modification of ZnO-TiO2 by addition of ZrO2 was studied. The metal oxides ZnO -TiO2-ZrO2 were prepared by a coprecipitation method: the amount of ZnO was a fixed 50 mol % of the sample. In this study, it was found that the addition of 5 or 10 mol % ZrO2 to 50 mol % ZnO-50 mol % TiO2 greatly improved the reactivity for H2S removal. Furthermore, the addition of ZrO2 improved its regenerability: the temperature for the regeneration of the sample was decreased to ca. 40 °C in the absence of H2O and ca. 75 °C in the presence of 10% H2O by the addition of 10% ZrO2.

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Modification of ZnO-TiO₂ high-temperature desulfurization sorbent by ZrO₂ addition

Abstract

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