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Table 4 Composite samples: new NMR method vs combustion method

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

No. Samplea name H, by NMR H, by combustion Diff (%)
1 Feed crude 9 10.83 11.13 −2.7
6 Feed crude 9 (after 2 months) 10.54 11.03 −4.4
2 Pdt at rxn 380 °C (from crude 9) 12.24 11.51 6.3
3 Pdt at rxn 400 °C (from crude 9) 12.87 11.97 7.2
4 Pdt at rxn 420 °C (from crude 9) 13.08 11.91 9.8
5 Feed crude 10 11.88 11.57 2.7
7 Pdt at rxn 380 °C (from crude 10) 12.22 11.59 5.4
8 Pdt at rxn 400 °C (from crude 10) 12.40 11.96 3.7
9 Feed crude 11 11.50 11.55 −0.4
10 Pdt at rxn 400 °C (from crude 11) 12.95 11.88 9.0
11 Pdt cut IBP-70 °C (1) 15.95
12 Pdt cut IBP-70 °C (2) 15.84
13 Cut C5-140 (1) 15.10
14 Cut C5-140 (2) 14.51
15 Base case Pdt 14.20 14.41 −1.5
16 Diesel case Pdt 14.10 13.89 1.5
17 Pdt cut 70–200 °C (1) 13.74 12.21 12.5
18 Pdt cut 140–330 °C 13.36 12.93 3.3
19 Pdt cut 70–200 °C (2) 13.34 12.08 10.4
20 Pdt cut 330–400 °C 12.54 13.01 −3.4
21 Pdt cut 200+ °C 12.52 12.31 1.7
22 Exit Pdt 12.26 11.15 10.0
23 Pdt cut 400–480 °C 11.36 11.45 −0.8
24 Pdt cut 480+ °C 10.14 10.24 −1.0
25 VGO feed + 10 %LGO 11.43 11.86 −3.6
26 Pdt at MRU 10.36 10.58 −2.1
27 Mangala crude 2 12.94 12.98 −0.3
  1. aSamples are not conventional boiling fractions, either a mixture of several boiling range products or direct product from MRU/MFU/PP