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• W2741265377 abstract "The modeling and simulation of hydrotreating (HDT) reactors can provide relevant information about optimal operating conditions, reactor design and formulation of catalysts to achieve cleaner fuels. This study developed a phenomenological model to estimate the kinetic parameters for the HDT process using the design of experiments technique. The catalytic tests were carried out in a bench-scale unit with diesel as feedstock under similar conditions to those of the industrial units and commercial nickel-molybdenum on alumina (NiMo/γ-Al2O3) as catalyst. The reactor temperature was varied from 330 to 380 °C and liquid hourly space velocity (LHSV) from 0.5 to 1.5 h−1, keeping constant hydrogen to oil ratio (H2/oil) and pressure at 800 std m3/m3 and 90 bar, respectively. The unknown parameters are estimated from experimental data by minimization of the unweighted least-squares function, using a non-linear optimization method (complex algorithm). The proposed model was able to reproduce different operating conditions with good adjustment and accuracy. Relative deviations below 4% for the experimental data and model prediction were achieved. Statistical parameters, p values, and confidence intervals confirmed the good quality of the estimated kinetic parameters. Internal diffusion resistances were present during hydrodesulfurization (HDS) and hydrodenitrogenation (HDN) reactions. The hydrogen consumption for HDS was higher than for HDN reaction. Finally, the proposed experimental design with 12 catalytic tests was satisfactory to obtain the desired results in a reliable way." @default.
• W2741265377 created "2017-08-08" @default.
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• W2741265377 date "2017-12-01" @default.
• W2741265377 modified "2023-10-17" @default.
• W2741265377 title "Modeling, simulation and kinetic parameter estimation for diesel hydrotreating" @default.
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• W2741265377 doi "https://doi.org/10.1016/j.fuel.2017.07.092" @default.
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