INVESTIGADORES
WILLIAMS Federico Jose
artículos
Título:
Electrochemical promotion by potassium of Rh-catalysed Fischer-Tropsch synthesis at high pressure
Autor/es:
URQUHART, A J; WILLIAMS, F J; LAMBERT, R M
Revista:
CATALYSIS LETTERS
Editorial:
SPRINGER
Referencias:
Año: 2005 vol. 103 p. 137 - 141
ISSN:
1011-372X
Resumen:
Rh-catalysed FischerTropsch synthesis at high pressures exhibits reversible electrochemical promotion by potassium. At 473 K and 14 bar, 43 products were detected, comprising alkanes, alkenes and primary alcohols. Potassium increased selectivity towards alkenes and primary alcohols as a result of actual increases in the rates of formation of these products an apparently unprecedented observation. Alkane formation was progressively suppressed by added alkali. These findings are discussed in terms of K-induced acceleration and retardation of possible rate limiting steps for alkene and alkane formation, respectively. Plausible mechanisms are discussed.