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- W2378635722 abstract "The decomposition of CF4 in the absence of water on γ-Al2O3-based metal oxides was carried out to destruct the disposal perfluoro-carbons (PFCs) from industrial processes. In the present work, the conversion of CF4 was tested over bare γ-Al2O3 at different temperatures of 825, 850 and 900 ℃. It was found that the initial activity of Al2O3 increased in the order of 825 ℃850 ℃900 ℃, unfortunately the CO2 yield declined quickly with time on stream because the un-reacted γ-Al2O3 was transformed into inactive γ-Al2O3 phase that resulted from the highly exothermic effect of Al2O3-fluorination reaction. As for the CF4 decomposition on MgO-Al2O3, fluorination of Mg species and the highly exothermic effect produced led to the collapse of MgAl2O4 structure, in which the magnesium element was fluorinated into MgF2. Al2O3 modified with P or Ni could inhibit the transformation of un-reacted γ-Al2O3 into γ-Al2O3 during CF4 decomposition, and consequently CF4 conversion reached a stable level with time on stream." @default.
- W2378635722 created "2016-06-24" @default.
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- W2378635722 date "2008-01-01" @default.
- W2378635722 modified "2023-09-25" @default.
- W2378635722 title "Decomposition of CF_4 over Al_2O_3-Based Metal Oxides" @default.
- W2378635722 hasPublicationYear "2008" @default.
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