A study of the copper-catalysed combustion of carbon

✍ Scribed by J.W. Patrick; A. Walker

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 776 KB
• Volume: 12
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(74)90052-9

✦ Synopsis

The copper catalysed combustion of a charcoal was investigated by gas analytical and magnetic susceptibility studies of the changes occurring when the oxygen absorption and product desorption processes took place separately. Copper added as copper sulphate caused marked reduction in the ignition temperature of the charcoal, gas analyses and magnetic susceptibility measurements indicating that the sulphate underwent premature decomposition under these conditions. Increasing the copper concentration led, on combustion, to increased evolution of COT with no significant increase in the quantity of CO in the gaseous products. Vacuum heat-treatment followed by oxidation caused changes in the paramagnetic component of the magnetic susceptibilities which conform with the changes associated with an oxygen transfer mechanism involving alternate oxidation and reduction of a metallic copper-cupric oxide system.