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

Table 5

Effect of different GHSV on the catalytic performance of catalyst^a.

GHSV (h^−1)		800	900	1000	1100	1200	1300
CO conversion (%)		67.1	68.7	70.8	72.0	65.3	57.3
	CH4	18.7	17.3	16.4	15.3	17.2	19.7
	∑C2-C4	55.2	52.9	60.9	64	57.1	51.5
	C2H6	8.8	7.3	6.5	7.4	6.7	7.9
	C2H4	13.5	14.5	18.2	18.9	15.7	10.3
	C3H8	7.9	6.3	7.4	7.1	7.8	9.8
Product selectivity (%)	C3H6	8.6	8.9	10.4	11.5	10.3	10.2
	C4H10	6.3	4.6	5.3	4.6	6.4	5.9
	C4H8	10.1	11.3	13.1	14.5	10.2	7.4
	∑C5-C9	12.9	13.7	11.2	10.1	12.5	12.9
	C10+	8.6	12.1	8.5	8.1	9.2	11.7
	CO2	4.6	4.0	3.0	2.5	4.0	4.2
	C2-C4	1.4	1.9	2.2	2.4	1.7	1.2
Olefin/parrafin ratio	C2	1.5	2.0	2.8	2.6	2.3	1.3
	C3	1.1	1.4	1.4	1.6	1.3	1.0
	C4	0.4	2.5	2.5	3.2	1.6	1.3

Reaction conditions: H₂/CO = 3/2, 𝑃=1 bar at 250°C.