Figure 1. Catalytic performance.

Activity and selectivity of Co₂Mn₁K_x and Co₄Mn₁K_x (x=0, 0.1 and 0.3) catalysts for CO hydrogenation. Catalytic tests were carried out at P=40 bar, H₂/CO=1.5 and total gas flow=40 ml min⁻¹. The same batch of catalyst was subjected to conversion at different temperatures (sequential increase from low to high). The catalytic performance of Co₄Mn₁K_0.1 at 220 °C was reproduced at least five times with errors <10% over different batches of catalyst. The error for the total carbon balance was ∼8% from three different measurements.