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V2O5, hydrocarbon oxidation over

A redox mechanism involving lattice oxygen originally proposed in 1954 by Mars and Van Krevelen (22) for hydrocarbon oxidation over V2O5 can be applied to a variety of catalytic oxidation reactions (23). The following illustrates a lattice redox mechanism for CO oxidation ... [Pg.120]

Oxide catalysts based on V2O5 promoted with alkali metal (especially sodium), Ti, B, and Fe have been shown to give high selectivity to dicyanonaphthalene over a wide range of process conditions (69,70). However, high mole ratios of ammonia to hydrocarbon are required to achieve and maintain good selectivity to dinitrile product. At 397°C and ammonia/hydrocarbon = 17.5, selectivity to dicyanonaphthalene from 2,6-dimethylnaphthalene is 96%, with 45% conversion. At higher temperature (520°C) and increased ammonia/hydrocarbon feed... [Pg.261]

See other pages where V2O5, hydrocarbon oxidation over is mentioned: [Pg.981]    [Pg.981]    [Pg.383]    [Pg.11]    [Pg.430]    [Pg.422]    [Pg.486]    [Pg.554]    [Pg.37]    [Pg.187]   
See also in sourсe #XX -- [ Pg.120 ]



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Hydrocarbon oxidation over

Over-oxidation

V2O5 Oxides

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