Table 1. Comparison of the FT catalytic performance of various cobalt-based catalysts^*.

Sample	CO conversion (%)	C5+ selectivity (%)	CoTY†
CoS	27	95	4.0
CoDTiS	34	95	5.0
CoCNTA	28	92	4.2

CoTY, cobalt time yield; FT, Fischer–Tropsch.

^*All data were obtained after 20 h of time on stream where stable catalytic performance at testing conditions was achieved. Reaction conditions: reaction temperature=215 ^oC, gas hourly space velocity (GHSV) standard temperature and pressure (STP)=3,600 ml g_cat⁻¹ h⁻¹, H₂/CO=2, pure syngas, total pressure=40 bar. The catalysts tested have already been evaluated in the FT reaction at 215 ^oC about 3 days.

^†Cobalt time yield (10⁻⁵ mol_co g_Co⁻¹ s⁻¹, molar CO conversion rate per gram of Co per hour).