Catalytic Performance of Fe-Mn/SiO₂ Nanocatalysts for CO Hydrogenation

Table 1

Effect of loading of (Fe-Mn) on the catalytic performance of catalysts.

wt.% (Fe, Mn)		5	10	15	20	25	30
CO conversion (%)		43.7	46.4	52.6	62.8	65.7	60.2
	CH4	31.4	29.1	25.7	24.3	26.3	28.5
	∑C2-C4	46.9	46.7	49	52	52.8	48.3
	C2H6	6.8	6.4	6.2	5.7	6.5	7.5
	C2H4	11.1	12.8	12.8	14.4	12.7	10.4
	C3H8	7.3	6.7	7.0	6.7	7.9	8.6
Product selectivity (%)	C3H6	8.4	7.1	8.3	9.5	8.6	7.5
	C4H10	6.8	6.9	6.3	7.3	8.0	6.2
	C4H8	6.5	6.8	8.4	9.4	9.1	8.1
	∑C5-C9	8.3	9.5	8.7	9.2	10.4	11.1
	C10+	6.9	8.7	11.4	8.9	5.1	5.8
	CO2	6.5	6.0	5.2	4.6	5.4	6.3
	C2-C4	1.2	1.3	1.5	1.7	1.4	1.2
Olefin/parrafin ratio	C2	1.6	2	2.1	2.5	2.0	1.4
	C3	1.2	1.1	1.2	1.4	1.1	0.9
	C4	1.0	0.1	1.3	1.3	1.1	1.3

Reaction conditions: H₂/CO = 2/1, GHSV = 1000 h⁻¹, and 𝑃=1 bar at 250°C.