Sulfur removal from municipal gas using magnesium oxides and a magnesium oxide/silicon dioxide composite

Yo Han Kim; Vu Anh Tuan; Myung Kyu Park; Chang Ha Lee

doi:10.1016/j.micromeso.2014.06.026

Sulfur removal from municipal gas using magnesium oxides and a magnesium oxide/silicon dioxide composite

Yo Han Kim, Vu Anh Tuan, Myung Kyu Park, Chang Ha Lee

Department of Chemical and Biomolecular Engineering

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

18 Citations (Scopus)

Abstract

Magnesium oxides (MgOs) were synthesized by polyol-meditation thermolysis, hydrothermal, and aerogel methods and utilized to remove sulfur compounds from municipal gas. The capacity to remove methyl mercaptan (291 μmol/mol) from methane was evaluated by using an adsorption breakthrough method at different temperatures. Then, to improve the sulfur removal capacity, a MgO-SiO ₂ composite was developed using the aerogel method and its breakthrough capacity was compared to those of the MgOs. The synthesized MgOs and MgO-SiO₂ composite were characterized by XRD, BET, TGA, and HR-TEM. The MgO prepared by the aerogel method had the highest surface area and sorption capacity among the as-synthesized MgOs. Furthermore, the sulfur sorption capacity of the MgO-SiO₂ composite prepared by the same aerogel method as MgO was three times higher than the aerogel MgO even though the sorption capacity of SiO₂ was negligible.

Original language	English
Pages (from-to)	299-307
Number of pages	9
Journal	Microporous and Mesoporous Materials
Volume	197
DOIs	https://doi.org/10.1016/j.micromeso.2014.06.026
Publication status	Published - 2014 Oct

Bibliographical note

Funding Information:
The authors gratefully acknowledge the financial support provided for this work by DAPA/ADD of Korea and Korea CCS R&D Center (KCRC) grant funded by the Ministry of Science, ICT and Future planning, South Korea (No. 20120008929 ).

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials

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title = "Sulfur removal from municipal gas using magnesium oxides and a magnesium oxide/silicon dioxide composite",

abstract = "Magnesium oxides (MgOs) were synthesized by polyol-meditation thermolysis, hydrothermal, and aerogel methods and utilized to remove sulfur compounds from municipal gas. The capacity to remove methyl mercaptan (291 μmol/mol) from methane was evaluated by using an adsorption breakthrough method at different temperatures. Then, to improve the sulfur removal capacity, a MgO-SiO 2 composite was developed using the aerogel method and its breakthrough capacity was compared to those of the MgOs. The synthesized MgOs and MgO-SiO2 composite were characterized by XRD, BET, TGA, and HR-TEM. The MgO prepared by the aerogel method had the highest surface area and sorption capacity among the as-synthesized MgOs. Furthermore, the sulfur sorption capacity of the MgO-SiO2 composite prepared by the same aerogel method as MgO was three times higher than the aerogel MgO even though the sorption capacity of SiO2 was negligible.",

author = "Kim, {Yo Han} and Tuan, {Vu Anh} and Park, {Myung Kyu} and Lee, {Chang Ha}",

note = "Funding Information: The authors gratefully acknowledge the financial support provided for this work by DAPA/ADD of Korea and Korea CCS R&D Center (KCRC) grant funded by the Ministry of Science, ICT and Future planning, South Korea (No. 20120008929 ).",

year = "2014",

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doi = "10.1016/j.micromeso.2014.06.026",

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AU - Kim, Yo Han

AU - Tuan, Vu Anh

AU - Park, Myung Kyu

AU - Lee, Chang Ha

N1 - Funding Information: The authors gratefully acknowledge the financial support provided for this work by DAPA/ADD of Korea and Korea CCS R&D Center (KCRC) grant funded by the Ministry of Science, ICT and Future planning, South Korea (No. 20120008929 ).

PY - 2014/10

Y1 - 2014/10

N2 - Magnesium oxides (MgOs) were synthesized by polyol-meditation thermolysis, hydrothermal, and aerogel methods and utilized to remove sulfur compounds from municipal gas. The capacity to remove methyl mercaptan (291 μmol/mol) from methane was evaluated by using an adsorption breakthrough method at different temperatures. Then, to improve the sulfur removal capacity, a MgO-SiO 2 composite was developed using the aerogel method and its breakthrough capacity was compared to those of the MgOs. The synthesized MgOs and MgO-SiO2 composite were characterized by XRD, BET, TGA, and HR-TEM. The MgO prepared by the aerogel method had the highest surface area and sorption capacity among the as-synthesized MgOs. Furthermore, the sulfur sorption capacity of the MgO-SiO2 composite prepared by the same aerogel method as MgO was three times higher than the aerogel MgO even though the sorption capacity of SiO2 was negligible.

AB - Magnesium oxides (MgOs) were synthesized by polyol-meditation thermolysis, hydrothermal, and aerogel methods and utilized to remove sulfur compounds from municipal gas. The capacity to remove methyl mercaptan (291 μmol/mol) from methane was evaluated by using an adsorption breakthrough method at different temperatures. Then, to improve the sulfur removal capacity, a MgO-SiO 2 composite was developed using the aerogel method and its breakthrough capacity was compared to those of the MgOs. The synthesized MgOs and MgO-SiO2 composite were characterized by XRD, BET, TGA, and HR-TEM. The MgO prepared by the aerogel method had the highest surface area and sorption capacity among the as-synthesized MgOs. Furthermore, the sulfur sorption capacity of the MgO-SiO2 composite prepared by the same aerogel method as MgO was three times higher than the aerogel MgO even though the sorption capacity of SiO2 was negligible.

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