Effect of preparation method on 5% Co/Nb2O5 in Fischer-Tropsch Syntesis (FTS)

✍ Scribed by R.R. Soares; A. Frydman; M. Schmal

• Book ID: 103935618
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 519 KB
• Volume: 16
• Category: Article
• ISSN: 0920-5861
• DOI: 10.1016/0920-5861(93)80075-c

✦ Synopsis

Three preparation methods of 5% Co/NbaOs were studied : incipient wetness impregnation, deposition-precipitation with and without aging. Its effects over total area, mean pore diameter, cobalt species and acidity of reduced catalysts were investigated by BET, Hg porosimetry, XRD, DRS, TPR, TPO and NH3 TPD. TPR results showed that the reduction proceed+s as two steps (Co+3~Co+2-+Coo). TPR and DRS indicated the presence of Co in the precipitated catalysts. The main phase was Co304 in all catalysts. The FTS selectivity showed good correlation with the strong acidity.