NIRS Characterization of Paper Pulps to Predict Kappa Number

Table 1

Values of operating variables used in the design of experiments.

Experiment	, °C	, min	Soda, %	Anthraquinone, %	Liquid/solid ratio
1	170	60	15	0.5	6	0	0	0	0	0
2	155	30	10	1	4	−1	−1	−1	1	−1
3	155	30	10	0	8	−1	−1	−1	−1	1
4	155	30	20	1	8	−1	−1	1	1	1
5	185	60	15	0.5	6	1	0	0	0	0
6	170	60	15	1	6	0	0	0	1	0
7	170	30	15	0.5	6	0	−1	0	0	0
8	170	60	10	0.5	6	0	0	−1	0	0
9	185	30	10	1	8	1	−1	−1	1	1
10	185	30	20	1	4	1	−1	1	1	−1
11	170	60	20	0.5	6	0	0	1	0	0
12	170	90	15	0.5	6	0	1	0	0	0
13	185	30	20	0	8	1	−1	1	−1	1
14	170	60	15	0.5	8	0	0	0	0	1
15	155	60	15	0.5	6	−1	0	0	0	0
16	185	90	10	0	8	1	1	−1	−1	1
17	170	60	15	0	6	0	0	0	−1	0
18	155	90	20	0	8	−1	1	1	−1	1
19	185	90	20	0	4	1	1	1	−1	−1
20	155	90	20	1	4	−1	1	1	1	−1
21	185	90	20	1	8	1	1	1	1	1
22	155	90	10	1	8	−1	1	−1	1	1
23	185	90	10	1	4	1	1	−1	1	−1
24	155	30	20	0	4	−1	−1	1	−1	−1
25	155	90	10	0	4	−1	1	−1	−1	−1
26	170	60	15	0.5	4	0	0	0	0	−1
27	185	30	10	0	4	1	−1	−1	−1	−1

, , , , and = normalized values of temperature (), time (), soda concentration (), anthraquinone concentration (), and liquid/solid ratio (), respectively.