Selective oxidation in riser reactor
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Cited by (72)
Modeling the selective oxidation of n-butane to maleic anhydride: From active site to industrial reactor
2022, Catalysis TodayCitation Excerpt :Adsorbed oxygen species are considered as strong oxidizing agents for the total oxidation of n-butane [27,108]. Such considerations and the possibility of separately optimizing the operating conditions for reduction or reoxidation of the catalyst have led to the development of DuPont's circulating fluidized bed concept [27,172]. From the existence of this process, Sahakini et al. [169] concluded that the involvement of chemisorbed oxygen in the n-butane oxidation process can be excluded.
Bulk phase charge transfer in focus – And in sequential along with surface steps
2021, Catalysis TodayCitation Excerpt :The MvK mechanism has been the base for many practical selective and non-selective catalytic oxidation processes [22,23], and more recently, chemical looping [24–26] and rich oxygen combustion [27,28] have been observed in industrial practices. For instance, Dupont previously made an attempt in utilizing circulating fluidized-bed reactors for mass production of maleic anhydride with a vanadium phosphorus oxide catalyst, where the selective oxidation of n-butane and the re-oxidation of the catalyst occur in two separate reactors [29–31]. Even though this approach was eventually not adopted in the commercial practice, the concept behind has been intriguing.
On the importance of by-products in the kinetics of n-butane oxidation to maleic anhydride
2020, Chemical Engineering JournalMulti-objective optimization of maleic anhydride circulating fluidized bed (CFB) reactors
2019, Chemical Engineering Research and DesignCitation Excerpt :The fluidized bed reactor, though, leads to high Bu conversions due to high back mixing, which results in a reduction of the MA selectivity and thus, the MA productivity (Contractor, 1999). Researchers at DuPont (Contractor, 1999; Contractor et al., 1994, 1987; Contractor and Sleight, 1988) have proposed the use of circulating fluidized bed (CFB) reactors for MA production. It is reported (Contractor, 1999) that the MA CFB reactor has all the advantages of a fluidized bed reactor over the fixed bed reactor.
Structural evolution and catalytic performance of DuPont V-P-O/SiO<inf>2</inf> materials designed for fluidized bed applications
2010, Applied Catalysis A: General