An Analytical Evaluation of the Synergistic Effect on Biodiesel Oxidation Stability Promoted by Binary and Ternary Blends Containing Multifunctional Additives

Table 6

Induction period (IP) for soybean biodiesel samples, containing ternary additive blends, obtained by the Rancimat® method.

Sample	IP	Sample	IP	Sample	IP	Sample	IP
code	(hours)	code	(hours)	code	(hours)	code	(hours)
CT – A1	6.25 ± 0.25	CT – B1	5.66 ± 0.06	CT – C1	5.75 ± 0.10	CT – D1	5.56 ± 0.02
CT – A2	5.47 ± 0.10	CT – B2	2.18 ± 0.01	CT – C2	2.00 ± 0.14	CT – D2	6.84 ± 0.23
CT – A3	7.80 ± 0.15	CT – B3	7.30 ± 0.15	CT – C3	6.74 ± 0.22	CT – D3	8.05 ± 0.08
CT – A4	6.87 ± 0.21	CT – B4	3.70 ± 0.02	CT – C4	2.83 ± 0.05	CT – D1	5.56 ± 0.01
CT – A5	8.68 ± 0.05	CT – B5	8.54 ± 0.12	CT – C5	8.96 ± 0.04
CT – A6	8.14 ± 0.02	CT – B6	8.36 ± 0.03	CT – C6	8.35 ± 0.23
CT – A7	4.43 ± 0.16	CT – B7	4.36 ± 0.01	CT – C7	4.34 ± 0.17