| 摘要 |
A composition for use as a catalyst or catalyst precursor for the conversion of synthesis gas to hydrocarbons said composition comprises (i) cobalt either as the elemental metal, oxide or a compound thermally decomposable to the elemental metal or oxide and (ii) zinc in the form of the oxide or a compound thermally decomposable to the oxide and (iii) rhenium in elemental form or in the form of a compound characterised in that the rhenium metal is present in the composition in amount in the range 0.0001 to 2.00 % w/w. The compositions show improved activity over a wide temperature range than prior art compositions.
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