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Titania-loaded coal char as catalyst in oxidation of styrene with aqueous hydrogen peroxide

Nurhadi, M. and Chandren, S. and Yuan, L. S. and Ho, C. S. and Indra Mahlia, T. M. and Nur, H. (2017) Titania-loaded coal char as catalyst in oxidation of styrene with aqueous hydrogen peroxide. International Journal of Chemical Reactor Engineering, 15 (1). pp. 45-55. ISSN 1542-6580

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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.

Item Type:Article
Uncontrolled Keywords:durations, sulfonation
Subjects:Q Science > Q Science (General)
Divisions:Science
ID Code:76336
Deposited By: Widya Wahid
Deposited On:29 Jun 2018 22:03
Last Modified:29 Jun 2018 22:03

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