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Titania-Loaded Coal Char as Catalyst in Oxidation of Styrene with Aqueous Hydrogen Peroxide
International Journal of Chemical Reactor Engineering (2017)
  • Mukhamad Nurhadi, Mulawarman University
  • Sheela Chandren, University Technology Malaysia
  • Lai Sin Yuan, University Technology Malaysia
  • Chin Siong Ho, University Technology Malaysia
  • Teuku Meurah Indra Mahlia, Universiti Tenaga Nasional
  • Hadi Nur
Abstract
Titania-loaded coal char catalyst was successfully prepared. The preparation steps involved pyrolysis of low
rank coal at different temperatures and durations, sulfonation, impregnation of titanium(IV) isopropoxide, and then
heating at 110 °C. It is found that the coal chars’ surfaces were rough after sulfonation and impregnation, while large pore volume, high surface area and carbon composition were observed at low pyrolysis temperature for short duration. These properties contributed to high selectivity towards benzaldehyde (> 90%) at 600 °C (0.5–2 h)) in styrene oxidation using aqueous hydrogen peroxide as the oxidant.
Keywords
  • titania-loaded coal char,
  • styrene,
  • oxidation,
  • sulfonation,
  • aqueous hydrogen peroxide
Publication Date
Summer February 4, 2017
Citation Information
Mukhamad Nurhadi, Sheela Chandren, Lai Sin Yuan, Chin Siong Ho, et al.. "Titania-Loaded Coal Char as Catalyst in Oxidation of Styrene with Aqueous Hydrogen Peroxide" International Journal of Chemical Reactor Engineering (2017)
Available at: http://works.bepress.com/hadi_nur/78/