Influence of electron beam irradiation on nitrogen-saturated biodiesel

Figures & data

Table 2. Ester content in all tested RME samples.

		Dose of radiation (kGy)
		0	0.84	1.85	5.06	10.11	20.23	40.45	60.67	80.9	101.12	121.35
Content of methyl esters (wt%)	C14:0^a	0.13	0.13	0.13	0.13	0.13	0.13	0.13	0.13	0.13	0.13	0.13
	C16:0	4.84	4.8	4.81	4.79	4.78	4.8	4.78	4.79	4.78	4.77	4.78
	C16:1	0.65	0.65	0.64	0.65	0.64	0.64	0.64	0.64	0.64	0.63	0.63
	C18:0	1.77	1.76	1.75	1.76	1.77	1.77	1.76	1.77	1.75	1.76	1.77
	C18:1	59.75	59.4	59.41	59.38	59.36	59.37	59.32	59.3	59.15	59.05	58.97
	C18:2	18.7	18.5	18.51	18.49	18.4	18.45	18.3	18.32	18.2	17.99	17.93
	C18:3	8.32	8.04	8.03	8.04	8.03	8.02	8.01	8.01	7.98	7.99	7.97
	C20:0	0.54	0.54	0.54	0.54	0.53	0.54	0.54	0.53	0.54	0.54	0.54
	C20:1	1.27	1.27	1.27	1.27	1.27	1.27	1.27	1.27	1.27	1.27	1.26
	C22:0	0.28	0.29	0.28	0.28	0.28	0.29	0.3	0.28	0.3	0.29	0.28
	C22:1	0.44	0.44	0.44	0.45	0.44	0.44	0.44	0.45	0.44	0.43	0.43
	C24:0	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12
	C24:1	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12
Total ester content (wt%)		96.93	96.06	96.05	96.02	95.87	95.96	95.73	95.73	95.42	95.09	94.93

^a C14:0, methyl mirystate; C16:0, methyl palmitate; C16:1, methyl palmitoleate; C18:0, methyl stearate; C18:1, methyl oleate; C18:2, methyl linoleate; C18:3, methyl linolenate; C20:0, methyl arachidate; C20:1, methyl eicosanoate; C22:0, methyl behenate; C22:1, methyl erucate; C24:0– methyl lignocerate; C24:1, methyl nervonate.

Table 1. Doses of radiation absorbed by samples.

Sample no.	1	2	3	4	5	6	7	8	9	10
Absorbed dose (kGy)	0.84	1.85	5.06	10.11	20.23	40.45	60.67	80.90	101.12	121.35

Figure 1. Vis absorption of all tested samples.

Figure 2. UV–Vis absorption of all tested samples in the range 365–525 nm.

Figure 3. UV–Vis absorption of all tested samples in the range 655–690 nm.

Figure 4. Change of absorbane at 442 nm versus radiation dose.

Figure 5. Content of unsaturated C18 esters versus dose of radiation.

Figure 6. Total ester content versus dose of radiation.

Figure 7. Change of density versus radiation dose.

Figure 8. Cluster analysis for VIS and GC result.

Figure 9. PCA analysis plot.