Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti

Tae Ho Kim; Gyeong Taek Gong; Byung Gwon Lee; Kwan Young Lee; Hee Young Jeon; Chae Ho Shin; Honggon Kim; Kwang Deog Jung

doi:10.1016/j.apcata.2006.02.052

Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti

Tae Ho Kim, Gyeong Taek Gong, Byung Gwon Lee, Kwan Young Lee, Hee Young Jeon, Chae Ho Shin, Honggon Kim, Kwang Deog Jung

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

68 Citations (Scopus)

Abstract

The iodine-sulfur (IS) cycle has been focused for hydrogen production by water splitting using a very high temperature nuclear reactor (VHTR) which is a high temperature heat source. The nuclear energy was absorbed at the temperature ranges of 750-900 °C by SO₃ decomposition reaction to SO₂ and O₂ in IS cycle. In this work, the activity of Fe/Al and Fe/Ti catalysts prepared by a co-precipitation was studied in an attempt to find some suitable catalysts for the decomposition of sulfur trioxide as the oxygen-generating reaction in the thermo-chemical water splitting process. The SO₃ decomposition was performed in the temperature range of 750-950 °C at a space velocity of 72,000 cm³/g cat. h in a fixed bed reactor. The catalytic activity of Fe/Al and Fe/Ti catalysts increased with an increase in Fe loadings, indicating that the Fe component should be active. The mechanism for the SO₃ decomposition on metal oxides can be described as follows: the metal sulfate formation (MO + SO₃ → MSO₄) and the decomposition of metal sulfate (MSO₄ → MO₂ + SO₂ and MO₂ → MO + 1/2O₂).

Original language	English
Pages (from-to)	39-45
Number of pages	7
Journal	Applied Catalysis A: General
Volume	305
Issue number	1
DOIs	https://doi.org/10.1016/j.apcata.2006.02.052
Publication status	Published - 2006 May 17
Externally published	Yes

Bibliographical note

Funding Information:
The authors wish to acknowledge the financial support from MOST of Korea and KAERI. This work has been carried out under the Nuclear Hydrogen Development and Demonstration Project (NHDD).

Keywords

Hydrogen production
IS cycle
Metal sulfate decomposition
SO decomposition

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apcata.2006.02.052

Cite this

@article{7465cc91d0464717a31523e5a21b294e,

title = "Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti",

abstract = "The iodine-sulfur (IS) cycle has been focused for hydrogen production by water splitting using a very high temperature nuclear reactor (VHTR) which is a high temperature heat source. The nuclear energy was absorbed at the temperature ranges of 750-900 °C by SO3 decomposition reaction to SO2 and O2 in IS cycle. In this work, the activity of Fe/Al and Fe/Ti catalysts prepared by a co-precipitation was studied in an attempt to find some suitable catalysts for the decomposition of sulfur trioxide as the oxygen-generating reaction in the thermo-chemical water splitting process. The SO3 decomposition was performed in the temperature range of 750-950 °C at a space velocity of 72,000 cm3/g cat. h in a fixed bed reactor. The catalytic activity of Fe/Al and Fe/Ti catalysts increased with an increase in Fe loadings, indicating that the Fe component should be active. The mechanism for the SO3 decomposition on metal oxides can be described as follows: the metal sulfate formation (MO + SO3 → MSO4) and the decomposition of metal sulfate (MSO4 → MO2 + SO2 and MO2 → MO + 1/2O2).",

keywords = "Hydrogen production, IS cycle, Metal sulfate decomposition, SO decomposition",

author = "Kim, {Tae Ho} and Gong, {Gyeong Taek} and Lee, {Byung Gwon} and Lee, {Kwan Young} and Jeon, {Hee Young} and Shin, {Chae Ho} and Honggon Kim and Jung, {Kwang Deog}",

note = "Funding Information: The authors wish to acknowledge the financial support from MOST of Korea and KAERI. This work has been carried out under the Nuclear Hydrogen Development and Demonstration Project (NHDD). ",

year = "2006",

month = may,

day = "17",

doi = "10.1016/j.apcata.2006.02.052",

language = "English",

volume = "305",

pages = "39--45",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier B.V.",

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T1 - Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti

AU - Kim, Tae Ho

AU - Gong, Gyeong Taek

AU - Lee, Byung Gwon

AU - Lee, Kwan Young

AU - Jeon, Hee Young

AU - Shin, Chae Ho

AU - Kim, Honggon

AU - Jung, Kwang Deog

N1 - Funding Information: The authors wish to acknowledge the financial support from MOST of Korea and KAERI. This work has been carried out under the Nuclear Hydrogen Development and Demonstration Project (NHDD).

PY - 2006/5/17

Y1 - 2006/5/17

N2 - The iodine-sulfur (IS) cycle has been focused for hydrogen production by water splitting using a very high temperature nuclear reactor (VHTR) which is a high temperature heat source. The nuclear energy was absorbed at the temperature ranges of 750-900 °C by SO3 decomposition reaction to SO2 and O2 in IS cycle. In this work, the activity of Fe/Al and Fe/Ti catalysts prepared by a co-precipitation was studied in an attempt to find some suitable catalysts for the decomposition of sulfur trioxide as the oxygen-generating reaction in the thermo-chemical water splitting process. The SO3 decomposition was performed in the temperature range of 750-950 °C at a space velocity of 72,000 cm3/g cat. h in a fixed bed reactor. The catalytic activity of Fe/Al and Fe/Ti catalysts increased with an increase in Fe loadings, indicating that the Fe component should be active. The mechanism for the SO3 decomposition on metal oxides can be described as follows: the metal sulfate formation (MO + SO3 → MSO4) and the decomposition of metal sulfate (MSO4 → MO2 + SO2 and MO2 → MO + 1/2O2).

AB - The iodine-sulfur (IS) cycle has been focused for hydrogen production by water splitting using a very high temperature nuclear reactor (VHTR) which is a high temperature heat source. The nuclear energy was absorbed at the temperature ranges of 750-900 °C by SO3 decomposition reaction to SO2 and O2 in IS cycle. In this work, the activity of Fe/Al and Fe/Ti catalysts prepared by a co-precipitation was studied in an attempt to find some suitable catalysts for the decomposition of sulfur trioxide as the oxygen-generating reaction in the thermo-chemical water splitting process. The SO3 decomposition was performed in the temperature range of 750-950 °C at a space velocity of 72,000 cm3/g cat. h in a fixed bed reactor. The catalytic activity of Fe/Al and Fe/Ti catalysts increased with an increase in Fe loadings, indicating that the Fe component should be active. The mechanism for the SO3 decomposition on metal oxides can be described as follows: the metal sulfate formation (MO + SO3 → MSO4) and the decomposition of metal sulfate (MSO4 → MO2 + SO2 and MO2 → MO + 1/2O2).

KW - Hydrogen production

KW - IS cycle

KW - Metal sulfate decomposition

KW - SO decomposition

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DO - 10.1016/j.apcata.2006.02.052

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Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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