Catalytic decomposition of CFC‐12 on solid acids SO42‐/MxOy (M-Zr, Ti, Sn, Fe, Al)
- 1 May 2000
- journal article
- research article
- Published by Wiley in Chinese Journal of Chemistry
- Vol. 18 (3) , 341-345
- https://doi.org/10.1002/cjoc.20000180315
Abstract
The catalytic decomposition of dichlorodifluoromethane (CFC‐12) in the presence of water vapor on a series of SO42−‐promoted solid adds was investigated. CFC‐12 was decomposed completely on SO42−/ZrO2, SO42−/TiO2, SO42−/SnO2, SO42−/ Fe2O3 and SO42–/Al2O3 at 265°C, 270°C, 325°C, 350°C and 325°C, respectively, and the selectivity to by‐products was neglectable. Obvious deactivation was found on SO42−/ZrO2 and SO42−/Al2O3, during several hours on stream, while the catalytic activity was maintained on SO42−/TiO2, SO42−/SnO2 and SO42−/Fe2O3 for 240 h on stream.Keywords
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