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

Table 2

Effect of different H₂S volume fractions on the catalytic performance of catalyst^a.

H2S volume fractions^b		0.02	0.04	0.06	0.08	0.1	0.12
CO conversion (%)		64.4	65.2	67.4	65.7	58.4	43.5
	CH4	23.4	21.1	18.5	17.6	7.01	17.0
	∑C2-C4	53.5	54.5	56.8	56.5	52.8	53.1
	C2H6	5.8	5.7	4.9	6.8	6.7	10.4
	C2H4	15.1	15.2	17.7	14.2	13.2	11.3
	C3H8	8.3	8.5	8.4	8.9	8.5	9.6
Product selectivity (%)	C3H6	8.4	9.1	9.5	8.6	5.7	6.4
	C4H10	5.0	5.0	4.1	7.7	9.3	8.1
	C4H8	10.9	11.0	12.2	10.3	9.4	7.3
	∑C5-C9	10.2	10.5	10.5	12.0	13	11.0
	C10+	9.4	10.5	10.9	10.6	12.7	13.5
	CO2	3.5	3.4	3.3	3.3	4.5	5.4
	C2-C4	1.8	1.8	2.3	1.4	1.2	0.9
Olefin/parrafin ratio	C2	2.6	2.7	3.6	2.1	2.0	1.1
	C3	1.0	1.1	1.1	1.0	0.7	0.7
	C4	0.6	2.2	3.0	1.3	1.0	0.9

^aReaction conditions: H₂/CO = 2/1, GHSV = 1000 h⁻¹, and 𝑃=1 bar at 250°C.
^bH₂S volume fractions = 𝑉_H2S/(𝑉_H2S+𝑉_N2).