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Kinetics of vapour phase oxidation of furfural on vanadium catalyst

✍ Scribed by M.S. Murthy; K. Rajamani

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
606 KB
Volume
29
Category
Article
ISSN
0009-2509

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✦ Synopsis

Vapour phase oxidation of furfural over vanadium pentoxide catalyst was studied using an isothermal flow reactor in the temperature range of 220-280Β°C. Maleic anhydride and carbon dioxide are found to be formed from furfural by a parallel reaction scheme. The following rate equation based on the two-stage redox mechanism-the substance to be oxidized reduces the catalyst which in turn is reoxidized by oxygen from the feed-is found to explain the data satisfactorily.

(k, + k&F . k4P0, rF = (2k, + 5k&, + k4p02'

The reoxidation of the reduced catalyst was found to be the rate controlling step. 'r------l V-NEEDLE VALVE F-FLOW METER TI-PURIFYING TOWER (KON) n-a' " (cm*) TS-" m (GLASS WOOL) TC-THER~~~couPLE MS-MOVING SVLB M-MANOMETER FC-FURFURAL CONTAINER SC-SPIRAL COIL SS-STATIONARY BOTTLE 'TOR GAS SAL(PLE

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