| dc.creator |
Masende, Z. P. G. |
|
| dc.creator |
Kuster, B. F. M. |
|
| dc.creator |
Ptasinski, Krzysztof J. |
|
| dc.creator |
Janssen, Frans J. J. G. |
|
| dc.creator |
Katima, Jamidu H. Y. |
|
| dc.creator |
Schouten, J. C. |
|
| dc.date |
2016-05-27T13:50:28Z |
|
| dc.date |
2016-05-27T13:50:28Z |
|
| dc.date |
2005 |
|
| dc.date.accessioned |
2018-03-27T08:41:08Z |
|
| dc.date.available |
2018-03-27T08:41:08Z |
|
| dc.identifier |
Masende, Z.P.G., Kuster, B.F.M., Ptasinski, K.J., Janssen, F.J.J.G., Katima, J.H.Y. and Schouten, J.C., 2005. Support and dispersion effects on activity of platinum catalysts during wet oxidation of organic wastes. Topics in catalysis, 33(1-4), pp.87-99. |
|
| dc.identifier |
http://hdl.handle.net/20.500.11810/2298 |
|
| dc.identifier |
10.1007/s11244-005-2514-4 |
|
| dc.identifier.uri |
http://hdl.handle.net/20.500.11810/2298 |
|
| dc.description |
Catalytic activity of platinum catalysts such as Pt/graphite, Pt/TiO2, Pt/Al2O3, and Pt/active carbon was studied using a slurry
phase CSTR. Three model reactions, namely, phenol, maleic acid, and malonic acid oxidation were investigated in the temperature
range from 120 to 170 C and at a total reactor pressure of 1.7 MPa. Platinum on graphite was found to be most suitable for
aqueous phase oxidation of phenol, maleic acid, and malonic acid. Complete conversion for both phenol oxidation as well as maleic
acid oxidation to CO2 was observed with Pt/graphite at stoichiometric oxygen excess close to 0% and at 150 C. Deactivation due
to over-oxidation is gradual for Pt/graphite with a metal dispersion of 5.3% as compared to Pt/TiO2, Pt/Al2O3 and Pt/AC, which
have metal dispersions of 15.3%, 19.5% and 19.0%, respectively. It was further found that in the presence of Pt/graphite catalyst
and oxygen, malonic acid reaction proceeds via non-catalysed decarboxylation, and catalytic decarboxylation to CO2 and acetic
acid, and catalytic oxidation to CO2 and H2O. Acetic acid was found to be difficult to oxidise at temperatures below 200 C. |
|
| dc.language |
en |
|
| dc.publisher |
Springer Link |
|
| dc.subject |
Platinum catalysts |
|
| dc.subject |
Catalytic supports |
|
| dc.subject |
Wastewater treatment |
|
| dc.subject |
Stoichiometric oxygen excess |
|
| dc.subject |
Platinum metal dispersion |
|
| dc.title |
Support and Dispersion Effects on Activity of Platinum Catalysts during Wet Oxidation of Organic Wastes |
|
| dc.type |
Journal Article, Peer Reviewed |
|