Methodological Approach for Optimizing Production of Oxygen by Adsorption of Nitrogen from Air using Zeolite Li-LSX

Table 3

Experimental design of BBD for the production of oxygen.

Run	Pressure	Height	Flowrate	Actual purity	Predicted purity
1	1.5	16	2	44.98	46.3605
2	1.5	12	6	45.76	45.7600
3	0.5	12	10	34.41	33.4993
4	1.5	9	2	28.03	26.2949
5	2.5	12	2	46.30	47.2107
6	0.5	9	6	27.27	29.6407
7	2.5	16	6	73.15	70.9889
8	0.5	16	6	39.92	39.0161
9	1.5	9	10	41.73	40.4001
10	2.5	9	6	47.60	48.2943
11	1.5	12	6	45.76	45.7600
12	0.5	12	2	29.39	28.8339
13	2.5	12	10	63.29	63.8461
14	1.5	16	10	50.72	52.4045
15	1.5	12	6	45.76	45.7600