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 journalArticle

54 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 languageEnglish
Pages (from-to)39-45
Number of pages7
JournalApplied Catalysis A: General
Volume305
Issue number1
DOIs
Publication statusPublished - 2006 May 17
Externally publishedYes

Fingerprint

Oxides
Sulfur
Metals
Decomposition
Catalysts
Iodine
Sulfates
High temperature reactors
Water
Hydrogen production
Coprecipitation
Nuclear energy
Temperature
Catalyst activity
sulfur trioxide
Oxygen

Keywords

  • Hydrogen production
  • IS cycle
  • Metal sulfate decomposition
  • SO decomposition

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti. / Kim, Tae Ho; Gong, Gyeong Taek; Lee, Byung Gwon; Lee, Kwan Young; Jeon, Hee Young; Shin, Chae Ho; Kim, Honggon; Jung, Kwang Deog.

In: Applied Catalysis A: General, Vol. 305, No. 1, 17.05.2006, p. 39-45.

Research output: Contribution to journalArticle

Kim, Tae Ho ; Gong, Gyeong Taek ; Lee, Byung Gwon ; Lee, Kwan Young ; Jeon, Hee Young ; Shin, Chae Ho ; Kim, Honggon ; Jung, Kwang Deog. / Catalytic decomposition of sulfur trioxide on the binary metal oxide catalysts of Fe/Al and Fe/Ti. In: Applied Catalysis A: General. 2006 ; Vol. 305, No. 1. pp. 39-45.
@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}",
year = "2006",
month = "5",
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",
number = "1",

}

TY - JOUR

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

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

UR - http://www.scopus.com/inward/record.url?scp=33646487669&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646487669&partnerID=8YFLogxK

U2 - 10.1016/j.apcata.2006.02.052

DO - 10.1016/j.apcata.2006.02.052

M3 - Article

AN - SCOPUS:33646487669

VL - 305

SP - 39

EP - 45

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

SN - 0926-860X

IS - 1

ER -