SYNGAS CONVERSION TO GASEOUS HYDROCARBONS ON IRON-GROUP METAL BASED COMPOSITE CATALYSTS.

Syngas-conversion to methane and C//2-C //4 hydrocarbons on composite catalysts has been investigated by continuous flow method under 10-21 atm. Ni-La//2 O//3 -Ru catalyst exhibited higher activity in methane formation and lower activity in C//2 -C//4 hydrocarbons formation under 10 atm than under 1 atm. Fe-La//2O//3-Ru catalyst has high activity in C//2 -C//4 hydrocarbons under medium pressure (10. 5 atm), but under high pressure (20. 6 atm) formation of C//5// plus hydrocarbons was observed. Co-La//2O//3-Ru catalyst exerted the best performance among the three catalysts for C//1 -C//4 hydrocarbon synthesis. It is shown that catalysts prepared by impregnation using silica supports have better performance compared with catalysts prepared by other methods.