| 摘要 |
A new method for the synthesis of hydrocarbons with chain lengths of from 2 to 10 carbon atoms inclusive and for selective generation of olefinic hydrocarbons in this carbon number range with reduced wax formation, said products being synthesized from CO and H2 at pressures of from 100 to 3100 kPa which method comprises the steps of passing a synthesis gas stream of CO and H2 at a H2/CO ratio of from 0.1-10 at a space velocity of from 100 hr<->1 to 50,000 hr<->1 over a catalyst comprising from 0.01 to 15 wt. % ruthenium on TiO2, other titanium-containing oxides or mixtures of said titanium-containing oxides for a time sufficient to effect the generation of desired olefinic hydrocarbon products, at a temperature of from 100 DEG to 500 DEG C and a pressure of from 100 to 105 kPa (1-1000 atm). The supported ruthenium catalyst has a BET surface area of from 10 to 60 m2g-1 of total catalyst with a ruthenium crystallite size of preferably less than 5 nm (50 A). |
