Effect of support material on the catalytic combustion of diesel soot particulates

Several potential support materials were mixed with soot and subsequently the combustion temperature of the soot in 15% O2 was determined. Al2O3 and SiO2 showed no catalytic effect, TiO2 and ZrO2 lowered the soot combustion temperature with 80–90 K, whereas CeO2, La2O2CO3 and V2O5 (reference catalys...

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Bibliographic Details
Published in:Applied catalysis. B, Environmental Environmental, 1992-06, Vol.1 (2), p.117-127
Main Authors: van Doorn, J., Varloud, J., Mériaudeau, P., Perrichon, V., Chevrier, M., Gauthier, C.
Format: Article
Language:English
Subjects:
Catalysis
Chemical Sciences
soot combustion
total oxidation
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Summary:Several potential support materials were mixed with soot and subsequently the combustion temperature of the soot in 15% O2 was determined. Al2O3 and SiO2 showed no catalytic effect, TiO2 and ZrO2 lowered the soot combustion temperature with 80–90 K, whereas CeO2, La2O2CO3 and V2O5 (reference catalyst) showed a substantial activity for soot combustion. After poisoning with sulfur dioxide, the catalytic effect of CeO2 was strongly inhibited, whereas La2O2CO3 and V2O5 retained their high activity.
ISSN:0926-3373
1873-3883
DOI:10.1016/0926-3373(92)80037-Z