Journal
FUEL
Volume 113, Issue -, Pages 216-220Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2013.05.065
Keywords
Metal-organic frameworks; Sulfur compounds; Adsorption; Regeneration
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Funding
- King Saud University, Riyadh (Saudi Arabia)
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The metal-organic framework (MOF) Basolite C300 displays excellent performance for the removal of dibenzothiophene (DBT) in a model system consisting in DBT in a mixture of 2,2,4-trimethylpentane (TMP). With the aim to exploit this property in a continuous operation, it is imperative to develop a simple and effective regeneration procedure. Our previous work (Fuel 105 (2013) 459-465) demonstrated that there is only partial thermal regeneration of this system at 473 K, which makes this approach of limited value. In the present work, we developed a significantly more effective regeneration procedure in which the DBT-saturated MOF C300 system was washed with polar solvents, such as methanol, ethanol and isopropanol. It was found that regeneration using methanol as a solvent at temperatures near ambient (304 K) is highly effective and allows for the recovery of the initial adsorption capacity. After several regeneration cycles, both the crystallinity and the initial sorption capacity of the C300 system are essentially unchanged. (C) 2013 Elsevier Ltd. All rights reserved.
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