Activated carbon prepared from Canadian oil sands coke by Co-2 activation: II. Adsorption of metallic ions and organic constituents from oil sands tailings water

作者：Karimi Arash; Thinon Olivier; Fournier Joseph; Hill Josephine M^*

来源：Canadian Journal of Chemical Engineering, 2013, 91(9): 1500-1507.

DOI：10.1002/cjce.21769

• oil sands coke
• physical activation
• post-oxidation
• adsorption
• tailings water

Oil sands coke was activated with CO2 at 900 degrees C in a tubular fixed bed reactor. Samples activated in a CO2 stream with 50% air contained a significant number of functional groups. Some activated samples were post-oxidised in air at 350 degrees C to increase their surface functionality. Post-oxidation was necessary for the adsorption of ferric cations by the coke samples activated, except for the sample activated with 50% air. However, non-oxidised samples were also able to adsorb molybdate anions. Both organic and inorganic constituents of oil sands tailings water were successfully removed, but some inorganic species leached into water.

• 出版日期2013-9