Effect of reduction protocol of Pd catalysts on product distribution in furfural hydrogenation

TitleEffect of reduction protocol of Pd catalysts on product distribution in furfural hydrogenation
Publication TypeJournal Article
Year of Publication2017
AuthorsDate, NS, Biradar, NS, Chikate, RC, Rode, CV
JournalChemistrySelect
Volume2
Issue1
Pagination24-32
Date PublishedJAN
Type of ArticleArticle
AbstractSingle step conversion of furfural to ring hydrogenation and decarbonylation products, 2-methyltetrahydrofuran (2-MeTHF) and tetrahydrofuran (THF) in high selectivity was achieved by controlling the particle size of Pd/C catalyst. The particle size variation of Pd/C catalysts in the range of 3.8 to 22 nm could be achieved by employing different reducing agents. Of particular interest was the NaBH4 reduced catalyst (Pd-B/C), which gave the lowest crystallite size of 4.8 nm due to incorporation of B into the inner lattices of Pd-Pd. This phase was evidenced by a characteristic XRD peak of Pd-B at 2q=38.85 degrees as well as a shift of (111) peak (40.07 degrees) of Pd towards the lower value (39.8 degrees). As compared to formaldehyde reduced catalyst (Pd-F/C), Pd-B/C catalyst completely suppressed the formation of furfuryl alcohol to give > 65% selectivity to 2-MeTHF and THF. At 180 degrees C, almost equal distribution of side chain hydrogenation and ring opening products, 2-MF (45%) and PeDO (37 %), respectively, was observed while, higher temperature clearly favoured ring hydrogenation and decarbonylation reactions to give 2-MeTHF and THF.
DOI10.1002/slct.201601790
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)1.505
Divison category: 
Chemical Engineering & Process Development

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