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http://nopr.niscpr.res.in/handle/123456789/18491| Title: | Carbon formation during volatile organic compound oxidation over a nickel catalyst |
| Authors: | Jayathilaka, G D L P Hettige, C Mahanama, K R R Dissanayake, D P |
| Issue Date: | Apr-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Effect of metal additives on carbon formation during volatile organic compound oxidation over Ni/Al2O3 catalysts has been investigated. Cyclohexane is used as the model volatile organic compound. Reaction is carried out under oxygen limited conditions with just sufficient oxygen to convert ~10% of cyclohexane into carbon dioxide and water. Presence of Ca, Ba, Sr or Zn (10% by weight) in oxide form in the Ni/Al2O3 catalyst (25% Ni by weight) does not improve the resistance to carbon formation. In contrast, a remarkable improvement in the resistance to carbon formation is observed when Mg (10% by weight) is present. To understand the effect of Mg, nickel catalysts have been synthesized over MgO and CaO supports. It is seen that the catalyst Ni/MgO is highly resistant to carbon formation. X-ray diffraction studies show that the NiO phase is highly stable over the MgO support but reduces to metallic nickel over the CaO support. |
| Page(s): | 392-395 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.40A(04) [April 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 40A(4) 392-395.pdf | 1.1 MB | Adobe PDF | View/Open |
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