Synthesis of Hydrocarbons from H₂-Deficient Syngas in Fischer-Tropsch Synthesis over Co-Based Catalyst Coupled with Fe-Based Catalyst as Water-Gas Shift Reaction

Table 2

The results of the conversion of syngas to hydrocarbons over hybrid catalysts for reaction time of 6.5 h at 513 K^a.

	Without FeCu	FeCu^b	Zr-FeCu; (10 wt.% Zr)	Zr-FeCu; (20 wt.% Zr)	Mn-FeCu	Ce-FeCu	Pd/Mn-FeCu
CO conv. (%)	35.2	41.7	45.1	40.0	45.0	39.5	44.8
CO2 STY (mol kg^−1 h^−1)	0	1.75	1.50	1.36	1.92	1.25	2.65
H.C. STY (mol kg^−1 h^−1)	2.48	2.16	2.38	2.30	2.61	2.54	2.35
H.C. distribution (C-%)
CH4	31.8	36.7	33.8	34.3	33.2	31.4	36.6
C2–C4	13.5	12.7	11.3	12.7	10.4	11.5	11.8
C5–C11	38.5	43.9	41.1	36.7	45.9	48.2	41.9
	16.1	6.7	13.7	16.3	10.5	8.9	9.7

Reaction conditions: cat.: 2.0 g hybrid catalyst (1.5 g Co/β and 0.5 g Fe-based catalyst); pressure: 1.0 MPa; W/F = 16.3 g_-cat. h mol⁻¹; H₂/CO = 1.
^b1.95 g hybrid catalyst (1.5 g Co/β and 0.45 g Fe-based catalyst).