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Zirconia-silica based mesoporous desulfurization adsorbents.
- Source :
-
Journal of Power Sources . Mar2015, Vol. 278, p141-148. 8p. - Publication Year :
- 2015
-
Abstract
- We report a series of mesoporous silicate sorbent materials templated by long-chain primary alkylamines that display record level of desulfurization of the jet fuel JP-8. Pure silica frameworks and those with a Si:Zr synthesis molar ratio ranging from 44:1 to 11:1 were investigated. The optimum sorbent was identified as dodecylamine-templated silica-zirconia synthesized from a gel with Si:Zr molar ratio of 15:1. With an optimized silver loading of 11 wt.%, a saturation adsorption capacity of 39.4 mgS g −1 and a silver efficiency of 1.21 molS mol Ag −1 were observed for JP-8. This sorbent displayed exceptional regenerability, maintaining 86% of its initial capacity in model fuel after solvent regeneration with diethyl ether. Low-cost, portable and reusable sorbents for the desulfurization of JP-8 jet fuel are needed to make solid oxide fuel cells (SOFCs) a reality for military power needs. SOFCs require ultra-low sulfur content fuel, which traditional desulfurization methods cannot achieve. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ZIRCONIUM oxide
*DESULFURIZATION
*SORBENTS
*MESOPOROUS materials
*ALKYLAMINES
Subjects
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 278
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 100794751
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2014.12.043