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

Table 6

Effect of different reaction temperature on the catalytic performance of catalyst.

Temperature (°C)		220	230	240	250	260	270	280	290
CO conversion (%)		56.3	61.6	67.9	72.0	73.7	75.2	77.2	79.1
	CH4	14.1	14.9	15.6	15.3	15.3	17.5	21.9	23.8
	∑C2-C4	57.5	57	58	64	65.6	59.5	54.6	51.9
	C2H6	9.8	6.6	7.1	7.4	6.5	10.2	11.9	12.6
	C2H4	13.1	14.8	16.5	18.9	20.4	11.2	8.6	7.1
	C3H8	6.8	6.3	6.8	7.1	6.5	11.0	9.3	8.1
Product selectivity (%)	C3H6	9.3	9.9	10.1	11.5	12.1	9.5	9.7	8.3
	C4H10	7.4	6.8	5.1	4.6	5.2	7.4	8.3	9.1
	C4H8	11.1	12.6	12.9	14.5	14.9	10.2	6.8	6.7
	∑C5-C9	11.2	13.5	12.7	10.1	9.1	12.9	8.4	7.3
	C10+	12.4	11.2	10.1	8.1	7.2	14.5	10.2	7.4
	CO2	4.8	3.4	3.1	2.5	2.3	5.6	5.8	9.6
	C2-C4	1.4	1.9	2.1	2.4	2.6	1.1	0.9	0.7
Olefin/parrafin ratio	C2	1.3	2.2	2.3	2.6	3.1	1.0	0.7	0.6
	C3	1.4	1.6	1.5	1.6	1.9	0.9	1.0	1.0
	C4	0.4	2.5	2.5	3.2	2.9	1.4	0.8	0.7

Reaction conditions: H₂/CO = 3/2, GHSV = 1100 h⁻¹, and 𝑃=1 bar.