Synthesis of mesoporous aluminophosphates impregnated with metals and their application in gas oil desulphurization by adsorption

Mesoporous materials based on aluminophosphates and silicates have been synthesised and impregnated with different loadings of transition metals such as Ag, Cu and Ni. These materials have been characterised and tested as selective adsorbents for the desulphurization of light cycle oil (LCO) by liqu...

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Bibliographic Details
Published in:Journal of materials science 2009-12, Vol.44 (24), p.6546-6552
Main Authors: Águeda, V. I., Sotelo, J. L., Uguina, M. A., Rodríguez, R.
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Aluminophosphates
Aluminum phosphate
Block copolymers
Characterization and Evaluation of Materials
Chemical synthesis
Classical Mechanics
Copper
Crystallography and Scattering Methods
Desulfurizing
Desulphurization
Gas oil
Materials Science
Materials selection
Mesostructured Materials
Nickel
Polarity
Polymer Sciences
Silicates
Silver
Solid Mechanics
Transition metals
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Summary:Mesoporous materials based on aluminophosphates and silicates have been synthesised and impregnated with different loadings of transition metals such as Ag, Cu and Ni. These materials have been characterised and tested as selective adsorbents for the desulphurization of light cycle oil (LCO) by liquid adsorption. The polarity of the adsorbent matrix showed a positive effect on desulphurization, leading the impregnated aluminophosphates to higher adsorption capacities than the silicates. Among the transition metals tested, Ag-impregnated materials showed the best results followed by Cu and Ni. The aluminophosphate synthesised using pluronic F-127 block copolymer impregnated with a 5% of Ag (MFAP-5Ag) presented the best adsorption results with a maximum adsorption capacity of 11.36 mg S/g of adsorbent (equilibrium experiments), and breakthrough and saturation capacities of 4.25 mgS/g and 7.06 mgS/g, respectively (dynamic experiments).
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-009-3681-7