| 摘要 |
The invention provides a nickel/silica catalyst optionally also containing cations of a lower Group II metal (X), which catalyst satisfies the following combination of features: 1) a molar ratio of SiO2/Ni = 0.15 = 0.35 2) a molar ratio of X/Ni = 0 - 0.15 3) an active nickel surface area above 120m<2>/g 4) a BET surface area of which at least 60% is found with pores with a radius below 1.5 nm. Preferably the catalyst has an atomic X/Ni ratio between 0.5 - 0.10 and a BET surface area of which at least 60% is found in pores having a pore radius of below 1.4 nm. The group II metal X is preferably magnesium or barium. |
