(484g) Removal of Sulfur Compounds in Methane Or Nitrogen By Nano-Sized Magnesium Oxide and Its Composite

Removal of Sulfur Compounds in Methane or Nitrogen by Nano-sized Magnesium Oxide and Its Composite

Yo Han Kim, Vu Anh Tuan, Jae Jeong Kim, Chang Ha Lee^*

Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Korea

^*E-mail: leech@yonsei.ac.kr, Tel: +82-2-2123-2762

Metal oxide particles are considered as reactive adsorbents for the decontamination of toxic materials. The important feature is to enhance the surface chemical reactivity toward incoming adsorbates. It is expected that the adsorption efficiency of nano-sized MgO is greater than commercially common used MgO.

Nano-sized magnesium oxides (MgOs) and MgO-SiO₂ composite were synthesized by polyol-meditation thermolysis, hydrothermal, and aerogel methods to remove sulfur compounds from methyl mercaptan/methane and CEES/nitrogen mixtures. And the difference in sorption capacity among the synthesized MgOs and between dry and wet gas conditions was compared by using dynamic adsorption method at different temperatures. In addition, the effects of calcination condition on adsorption capacity by calcination condition were investigated. The synthesized MgOs were characterized by XRD, BET, TGA, and TEM.

Keywords: Magnesium oxide, Composite, Desulfurization, Sol-gel

Reference

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[2] S.H. Lim, E.J. Woo, H.J. Lee, C.H. Lee, “Synthesis of magnetite–mesoporous silica composites as adsorbents for desulfurization from natural gas,” Applied Catalysis B: Environmental, 85 (2008) 71–76.