Catalysis Letters, Vol.58, No.1, 33-35, 1999
Deuterium tracer studies on hydrotreating catalysts. 3. Influence of nickel on the rates of H-2-D-2 and H2S-D-2 isotopic exchange
The H-D isotopic exchange between H-2 and D-2 and between H2S and D-2 was carried out at 80 degrees C in a recycling reactor over a series of presulfided Mo/Al2O3 catalysts containing different amounts of nickel. Whatever the pretreatment procedure, it was found that the promoter had no significant effect on the rate of H-D exchange or on the amount of exchangeable hydrogen present on the catalysts.