期刊
FUEL PROCESSING TECHNOLOGY
卷 100, 期 -, 页码 49-54出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2012.03.006
关键词
Desulfurization; Phosphotungstic acid; Metal-organic framework; Copper-benzenetricarboxylate; Adsorption
资金
- Korea Sanhak Foundation
Liquid-phase adsorption of benzothiophene (BT) over phosphotungstic acid (PWA)-loaded porous copper-benzenetricarboxylate (Cu-BTC, one of the porous metal-organic frameworks) has been studied to understand the effect of PWAs on the adsorption/removal. The maximum adsorption capacity (Q(0)) increases with increasing PWA loading up to a W/Cu (wt./wt.) ratio of 0.22 in PWA/Cu-BTCs, resulting in an increase in the Q(0) by 26% compared with the virgin Cu-BTC. Since there is no remarkable change in the surface area and pore volume for the virgin and PWA loaded Cu-BTCs, it is suggested that the improved Q(0) over PWA/Cu-BTCs is due to the favorable interactions like acid-base ones between the acidic PWA and slightly basic BT. Based on this result, it can be suggested that MOF (metal-organic framework)-type materials, modified suitably, can be used in the adsorptive desulfurization of fuels. (C) 2012 Elsevier B.V. All rights reserved.
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