Synthesis of magnetite–mesoporous silica composites as adsorbents for desulfurization from natural gas

Magnetite–mesoporous silica composites were synthesized as a new adsorbent for desulfurization from natural gas. They were prepared by a simple procedure using pre-made magnetite as seeds for the formation of mesoporous silica. The domain size of the composite was reduced significantly, comparing wi...

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Bibliographic Details
Published inApplied catalysis. B, Environmental Vol. 85; no. 1-2; pp. 71 - 76
Main Authors Lim, Seol-Hee, Woo, Eun-Ji, Lee, Hyunjoo, Lee, Chang-Ha
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 17.12.2008
Elsevier
Subjects
Adsorbent
Adsorbents
Affinity
Catalysis
Chemistry
Colloidal state and disperse state
composite materials
Desulfurization
Desulfurizing
Exact sciences and technology
General and physical chemistry
Magnetite
Magnetite–mesoporous silica
Methane
Natural gas
Porous materials
Q1
silica
Silicon dioxide
Sulfur
Sulfur compounds
Surface area
Surface chemistry
Surface physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Desulfurization
Magnetite–mesoporous silica
Adsorbent
Natural gas
Methane
Sulfur compounds
Binary compound
Iron oxide
Transition element compounds
Porous material
Silica
Composite material
Mesoporosity
Heterogeneous catalysis
Magnetite
Synthesis
Adsorption
Pore
Affinity
Magnetite-mesoporous silica
Surface area
Sulfur
Environmental protection
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Summary:Magnetite–mesoporous silica composites were synthesized as a new adsorbent for desulfurization from natural gas. They were prepared by a simple procedure using pre-made magnetite as seeds for the formation of mesoporous silica. The domain size of the composite was reduced significantly, comparing with the case that no magnetite was added. This composite shows high capacity for a removal of methylmercaptane in the presence of methane while mesoporous silica or magnetite only had little capacity. The sulfur adsorption of this composite shows 20 times higher capacity than the mesoporous silica due to the synergetic effect of strong molecular affinity of the magnetite to the sulfur compound and large surface area/pore volume of the mesoporous silica.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0926-3373
1873-3883
DOI:10.1016/j.apcatb.2008.06.028