All issues Volume 76 (2021) Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 76 (2021) 56 Full HTMLHDS reaction order (n, from best fit of Eq. (1)) for various tested pristine and LN middle distillates. Activation energy (Ea) as determined from corresponding Arrhenius plots also included. Steady-state up-flow fixed-bed reactor, T = 330–350 °C, P = 56 kg cm−2 (5.77 MPa), LHSV = 1.25–2.5 h−1, H2/oil = 2500 p3 bbl−1 (445 m3 m−3).
| Stream | SRGO1 | LNSR1 | SRGO2 | LNSR2 | SR1LC | LNSR1LC |
|---|---|---|---|---|---|---|
| n | 1.5 | 1.5 | 1.5 | 1.5 | ND | 1.5 |
| R-squareda | 0.999 | 1 | 0.996 | 0.984 | ND | 0.9875 |
| Ea (kJ mol−1) | 94.58 | 30.45 | ND | ND | 105.6 | 28.36 |
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