Hydrodesulfurization (HDS) has an important impact on the product quality of coal tar hydrogenation. It is of great significance to study the HDS reaction law. Based on experimental data and the rate of full range low temperature coal tar (FLCT) HDS reaction, 2-lumped and 3-lumped kinetic models for FLCT HDS were established and fitted by simulated annealing algorithm. The results showed that the 3-lumped kinetic model is more reliable and reasonable compared to the 2-lumped kinetic model. The absolute value of relative error and absolute error of the 3-lumped kinetic model are less than 2.24% and 2.15%, respectively. The extrapolation of the 3-lumped kinetic model is good. The parameters of 3-lumped kinetic model were found as: x ₁ = 45.00%, x ₂ = 49.99%, x ₃ = 5.01%, k ₁₀ = 1.3598 × 10⁵ h⁻¹, k ₂₀ = 1.8023 × 10⁸ h⁻¹, k ₃₀ = 5.3355 × 10¹⁰ h⁻¹, E ₁ = 64.61 kJ·mol⁻¹, E ₂ = 110.39 kJ·mol⁻¹, E ₃ = 172.07 kJ·mol⁻¹, a ₁ = 0.9998, a ₂ = 1.3473, a ₃ = 1.9986, b ₁ = 0.2939, b ₂ = 0.3237, b ₃ = 1.6618. The effects of liquid hourly space velocity (LHSV), temperature (T), and pressure (P) on FLCT HDS process were analyzed and obtained by the 3-lumped kinetic model, which can provide a valid guide for further studies of coal tar hydro-upgrading process.

加氢脱硫（HDS）对煤焦油加氢的产品质量有重要影响。研究HDS反应规律具有重要意义。根据实验数据和全范围低温煤焦油（FLCT）HDS反应速率，建立了FLCT HDS的2集和3集动力学模型，并通过模拟退火算法进行拟合。结果表明，与2集总动力学模型相比，3集总动力学模型更可靠，更合理。3集动力学模型的相对误差和绝对误差的绝对值分别小于2.24％和2.15％。3集总动力学模型的外推法很好。3集总动力学模型的参数为：x ₁  = 45.00％，x ₂  = 49.99％，x ₃  = 5.01％，k ₁₀  = 1.3598×10 ⁵ h ^-1，k ₂₀  = 1.8023×10 ⁸ h ^-1，k ₃₀  = 5.3355×10 ¹⁰ h ^-1，E ₁  = 64.61 kJ·mol ^-1，E ₂  = 110.39 kJ·mol ^-1，E ₃  = 172.07 kJ·mol ^-1，a ₁  = 0.9998，a ₂  = 1.3473，a ₃  = 1.9986，b ₁ ＝ 0.2939，b ₂  ＝ 0.3237，b ₃  ＝ 1.6618。通过3集总动力学模型分析和获得了液时空速（LHSV），温度（T）和压力（P）对FLCT HDS过程的影响，为进一步研究煤焦油水合物提供了有效的指导。 -升级过程。