| 摘要 |
During the activation of Co/Zr/SiO2 catalysts by contacting them with a H2-containing gas at a temperature between 200 and 350 DEG C and a H2 partial pressure between 0,001 and 75 bar, the H2 partial pressure is gradually or stepwise increased from an initial value (PH2) to an ultimate value (PH2)U in such a way that (PH2)U &sccue& 5x(PH2)i. The time required for the activation can be drastically reduced (to about 10 hours or less) by carrying out the activation as described hereinbefore as a result of which catalysts with an improved activity and selectivity are obtained for the conversion of a mixture of CO and H2 into hydrocarbon. |
