Study of Syngas Conversion to Light Olefins by Response Surface Methodology

Table 1

Experimental design based on Box Behnken, catalyst: precipitated equimolar Fe-Co-Mn-𝑥%MgO, 𝑥: 5, 15, 25% wt, and total flow rate: 75 mL/min, H₂/CO = 2.

Point	Variables			Responses
	MgO	Temp	𝑃	%CO	𝑆CH4	𝑆C2H6	𝑆C2H4	𝑆C3H8	𝑆C3H6	𝑆C4H8	O/P	alpha
1	5	380	4	44.1	58.7	12.3	12.1	3.5	11.6	1.8	0.65	0.31
2	25	330	1	5.9	44.5	2.1	27.5	1.4	24.4	0.1	2.10	0.44
3	25	280	4	7.84	58.8	7.2	13.4	1.0	19.4	0.2	1.01	0.41
4	25	380	4	13.5	57.7	10.1	11.9	2.7	16.2	1.5	0.91	0.40
5	25	330	7	13.73	57.0	9.1	12.3	2.9	17.8	0.9	0.86	0.35
6	15	330	4	28.8	54.4	7.4	14.8	2.7	19.5	1.3	1.11	0.38
7	15	330	4	27.3	53.3	8.2	14.4	3.1	18.7	2.4	1.11	0.39
8	15	330	4	28	54.4	6.4	15.7	2.7	19.3	1.5	1.13	0.38
9	5	330	1	23.63	53.0	5.4	28.2	1.1	12.2	0.0	1.41	0.29
10	15	380	1	34.85	52.8	5.3	24.7	0.9	16.1	0.1	1.37	0.33
11	15	280	1	27.27	52.7	1.7	23.7	1.0	20.9	0.0	1.63	0.37
12	5	330	7	50	51.5	13.4	11.5	5.6	15.3	2.7	0.90	0.39
13	5	280	4	24.5	49.4	10.4	15.1	4.9	18.8	2.5	1.05	0.42
14	15	280	7	42.42	57.7	12.2	8.3	4.6	15.4	1.9	0.69	0.36
15	15	380	7	53.03	60.2	11.8	7.9	4.0	14.1	2.1	0.61	0.33