Abstract
ABSTRACTA kinetic model of whole-fraction low-temperature coal tar (LTCT) hydrodenitrogenation (HDN) was established and applied to a bench-scale trickle-bed reactor (TBR). The gPROMS software was used for parameter estimation, and nonlinear regression method was used to get the kinetic parameters: Ea = 98,173; k0 = 1.7 × 106; n = 1.56; α = -0.16; m = 0.5; tc = 12,196; β = 1.06. The concentration of nitrogen compounds in the liquid phase at different axial positions of TBR was obtained. At the same time, the order of influence of reaction conditions on HDN was temperature, LHSV, and pressure. The effectiveness factors at different positions of the catalyst bed were analyzed, and the influence of different reaction conditions on the effectiveness factor was studied.
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