Preparation and SO{sub 2} sorption/desorption behavior of an Ionic liquid supported on porous silica particles
- Zhejiang University, Hangzhou (China)
The ionic liquid 1,1,3,3-tetramethylguanidinium lactate (TMGL) was supported onto porous silica particles via a facile impregnation-vaporization method. The TMGL-supported particles gave high porosity and large specific surface area. The SO{sub 2} sorption/desorption properties of the silica-supported TMGL (TMGL-SiO{sub 2}) were evaluated, and high SO{sub 2} sorption capacity and rate were achieved. Its capacity reached 0.6 g SO{sub 2}/g TMGL in 15-30 min with pure SO{sub 2} gas and 0.15 g SO{sub 2}/g TMGL in 17 h with a N{sub 2}/SO{sub 2} mixture gas that contained 2160 ppm SO{sub 2}. The SO{sub 2} concentration was reduced to 12.6 ppm after sorption. The TMGL-SiO{sub 2} system could be reused for many sorption/desorption cycles without change in its capacity. It was also characterized by good mechanical strength and thermal stability at temperature up to 130{sup o}C. The SO{sub 2} sorbent system appears to be useful in gas desulfurization.
- OSTI ID:
- 21150682
- Journal Information:
- Industrial and Engineering Chemistry Research, Vol. 48, Issue 4; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
Similar Records
SALTSTONE AND RADIONUCLIDE INTERACTIONS: RADIONUCLIDE SORPTION AND DESORPTION, AND SALTSTONE REDUCTION CAPACITY
The influence of a silica pillar in lamellar tetratitanate for selective catalytic reduction of NO{sub x} using NH{sub 3}