Catalytic oxidation of organic solvent vapour with Pt/Co3O4‐CeO2 supported on a honeycomb carrier

We supported Pt/Co3O4‐CeO2 on a honeycomb carrier and examined the catalytic oxidation activity for organic solvent vapour. The support of platinum on Co3O4‐CeO2 was not necessary if gas containing only ethyl acetate as organic solvent was treated. However, in gas containing both toluene and ethyl a...

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Bibliographic Details
Published in:Canadian journal of chemical engineering 2021-02, Vol.99 (2), p.571-577
Main Authors: Inoue, Kenichiro, Somekawa, Shoichi, Fujiwara, Hiroyuki, Kawami, Yoshimasa
Format: Article
Language:English
Subjects:
Aluminum oxide
Carrier density
Catalytic oxidation
Cerium oxides
Co3O4‐CeO2
Cobalt oxides
Ethyl acetate
Exhaust gases
honeycomb carrier
organic solvent vapour
Oxidation
paint booth
Platinum
Solvents
Toluene
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Summary:We supported Pt/Co3O4‐CeO2 on a honeycomb carrier and examined the catalytic oxidation activity for organic solvent vapour. The support of platinum on Co3O4‐CeO2 was not necessary if gas containing only ethyl acetate as organic solvent was treated. However, in gas containing both toluene and ethyl acetate, Pt/Co3O4‐CeO2 showed higher activity than both Co3O4‐CeO2 and commercial grade Pt/Al2O3. By first supporting Co3O4‐CeO2 and then platinum on the honeycomb carrier, the platinum was concentrated more toward the surface of the catalyst and the activity increased. A test using sprayed paint thinner exhaust gas in a paint booth was also performed. Even when less platinum was utilized, by combining it with Co3O4‐CeO2, the coexistent organic components of toluene, ethyl acetate, and butyl acetate, etc., in the exhaust gas were completely oxidized at 250°C.
ISSN:0008-4034
1939-019X
DOI:10.1002/cjce.23867