Pressure enhanced reversible adsorption of NO{sub x} by activated carbons
- Univ. of Kentucky, Lexington, KY (United States)
The effect of pressure up to 27 bar on the conversion of NO + 1/2 O{sub 2} {yields} > NO{sub 2} and the amount of NO{sub 2} reversibly adsorbed on activated carbons was investigated. At 373 K and 17 bar, the amount of NO{sub 2} adsorbed was nearly the same as at 343 K and one bar and three to four times greater than at 373K and one bar. Analysis of the NO{sub 2} adsorption isotherm by both Langmuir analysis and the BET adsorption theory suggested that the reversible NO{sub 2} adsorption mechanism involved micropore filling with a monolayer adsorbed near 10 bar total pressure. Both pressure-release and temperature-induced NO{sub 2} desorption characteristics were studied and results suggested that cycled operation of an NO{sub x} emission control system using pressure and/or temperature as variables of operation would beneficially impact overall system performance.
- OSTI ID:
- 370334
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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