Catalytic Decomposition of CCl2F2 over Solid Base Na2O/ZrO2
2013 ◽
Vol 634-638
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pp. 494-499
Keyword(s):
Catalytic decomposition of dichlorodifluoromethane (CCl2F2) in the presence of water vapor and oxygen was studied over a series of solid base that have different ZrO2 content using a fixed-bed reactor. CO2 and CClF3 were the main-products and no CO was detected as by-product. The decomposition activity depended on the calcination temperature and the Zr:Na. Calcined at 600 °C and Zr:Na=1:0.35 were the best catalyst preparation conditions. Adopting low concentration of oxygen and CCl2F2 and high concentration of water vapor is preferable to the achievement of high conversion of CCl2F2 and selectivity for CO2. The catalytic activity of Na2O/ZrO2 remained steady for 120 h on stream.
2013 ◽
Vol 652-654
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pp. 1533-1538
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2013 ◽
Vol 457-458
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pp. 112-115
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2013 ◽
Vol 295-298
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pp. 326-330
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2013 ◽
Vol 726-731
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pp. 535-538
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2010 ◽
Vol 150-151
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pp. 1710-1713
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2013 ◽
Vol 781-784
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pp. 308-311
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Keyword(s):
2015 ◽
Vol 802
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pp. 431-436
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