Investigation of mixtures of a Co-based catalyst and a Cu-based catalyst for the Fischer-Tropsch synthesis with bio-syngas: The importance of indigenous water
Lualdi, M; Lögdberg, S; Regali, F; Boutonnet, M; Järås, S
| HERO ID | 4787532 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Investigation of mixtures of a Co-based catalyst and a Cu-based catalyst for the Fischer-Tropsch synthesis with bio-syngas: The importance of indigenous water |
| Authors | Lualdi, M; Lögdberg, S; Regali, F; Boutonnet, M; Järås, S |
| Journal | Topics in Catalysis |
| Volume | 54 |
| Issue | 13-15 |
| Page Numbers | 977-985 |
| Abstract | A series of different mechanical mixtures of a narrow-pore Co/c-Al2O3 catalyst and a Cu-based WGS-catalyst has been investigated in the low-temperature Fischer-Tropsch synthesis (483 K, 20 bar) with a model bio-syngas (H-2/CO = 1.0) in a fixed-bed reactor. The higher the fraction of WGS-catalyst in the mixture, the lower is the Co-catalyst-time yield to hydrocarbons. This is ascribed to a strong positive kinetic effect of water on the Fischer-Tropsch rate of the Co-catalyst, showing the importance of the indigenously produced water, especially in fixed-bed reactors where the partial pressure of water is zero at the reactor inlet. A preliminary kinetic modeling suggests that the reaction order in P-H2O is 0.3 for the Co/c-Al2O3 catalyst in the range of the studied reactor-average partial pressures of water (i.e., 0.04-1.2 bar). |
| Doi | 10.1007/s11244-011-9719-5 |
| Wosid | WOS:000300179100025 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | Fischer-Tropsch; Cobalt; Alumina; Water effect; Copper; Water-gas shift |