A 1H NMR method for the estimation of hydrogen content for all petroleum products

Mondal, Sujit; Kumar, Ravindra; Bansal, Veena; Patel, M. B.

doi:10.1186/s40543-015-0064-3

Journal of Analytical Science and Technology

Table 3 H in petroleum fractions by 1H NMR (d1 = 20 s, scan = 16) and ASTM D5291 methods

From: A ¹H NMR method for the estimation of hydrogen content for all petroleum products

No.	Sample	H, by NMR (HMDSO)^a	H, by combustion	Diff (%)	H, by NMR (dioxane)^b
1	Crude 1 C5-95^d	14.80	–	–	14.81
2	Crude 1 95-149^d	14.63	11.51	27.1	14.67
3	Crude 1 149-250^d	14.01	13.77	1.8	14.05
4	Crude 1 250-369^d	13.41	13.30	0.8	13.44
5	Crude 2 C5-95^d	14.72	–	–	14.73
6	Crude 2 95-149^d	14.88	11.43	30.2	14.88
7	Crude 2 149-250^d	14.21	13.71	3.6	14.02
8	Crude 2 250-369^d	13.57	13.41	1.2	13.55
9	Crude 3 C5-95^d	15.55	–	–	15.56
10	Crude 3 95-149^d	14.68	11.49	27.8	14.68
11	Crude 3 149-250^d	14.31	13.83	3.5	14.31
12	Crude 3 250-369^d	13.53	13.39	1.0	13.55
13	Crude 4 C5-95^d	15.00	–	–	15.21
14	Crude 4 95-149^d	14.59	11.69	24.8	14.69
15	Crude 4 149-250^d	14.27	13.83	3.2	–
16	Crude 4 250-369^d	13.15	13.22	−0.5	–
17	Crude 5 C5-95^d	15.09	–	–	15.21
18	Crude 5 95-149^d	14.54	11.89	22.3	14.59
19	Crude 5 149-250^d	13.95	13.55	3.00	–
20	Crude 5 250-369^d	13.16	13.21	−0.3	–
21	Crude 6 C5-95^d	15.35	–	–	15.53
22	Crude 6 95-149^d	14.67	12.05	21.8	14.74
23	Crude 6 149-250^d	13.89	13.54	2.6	–
24	Crude 6 250-369^d	13.17	13.03	1.1	–
25	Crude 7 C5-95^d	15.07	–	–	15.14
26	Crude 7 95-149^d	14.72	11.97	23	14.96
27	Crude 7 149-250^d	14.45	13.87	4.2	–
28	Crude 7 250-369^d	13.07	13.11	−0.3	–
29	Crude 8 C5-95^d	15.85	–	–	15.88
30	Crude 8 95-149^d	15.38	11.51	33.6	15.38
31	Crude 8 149-250^d	14.82	13.92	6.5	–
32	Crude 8 250-369^d	13.55	13.47	0.6	–
33	Mangala crude 1^d	13.65	13.80	−1.1	13.71
34	(Gasoline range)^e	13.45	11.91	12.5	13.43
35	(Gasoline range)^e	13.37	11.93	11.8	13.41
36	Diesel Std	13.19/13.10^c	13.11	0.6	13.19
37	HR OHCU mixed feed^f	12.45	11.78	5.7	12.32
38	HR OHCU test feed^f	12.42	11.99	3.6	12.56
39	MRU2 Pdt VGO^e	12.13	11.99	1.2	12.13
40	PR OHCU test feed^f	12.07	11.63	3.8	11.86
41	MRU2 feed VGO^e	11.52	11.69	−1.5	11.49
42	VGO HT^f	11.07	11.82	−6.3	11.09
43	HR OHCU furfural extract^f	10.79	10.67	1.1	10.71
44	MRU10 LCO feed^e	9.70	9.98	−2.8	9.70
45	ATF biojet-1^e	14.57	12.21	19.3	14.57
46	ATF biojet blend (UOP)^e	14.95	12.33	21.1	14.96
47	ATF biojet blend (Jat)^e	14.63	12.35	18.5	14.63
48	Kerosine Std	14.83	12.55	18.2	14.98
49	Std HSD-PQM	14.26	13.79	3.4	14.24
50	High diesel feed^e	12.80	12.87	−0.5	12.81

Samples were recorded in neat CDCl₃ using ^aHMDSO and ^bdioxane as internal reference
^cd1 = 40 s
^dCrude oil
^ePilot plant (PP)
^fRefinery

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