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在搅拌釜（φ107×350mm）中进行邻二甲苯液相氧化动力学的研究,其结果表明,在本试验条件下（搅拌釜转速为1200rpm空釜线速≥1.5cm/s,氧化温度在130℃以下）可以消除传质影响。 本研究建立了邻二甲苯（OX）氧化的动力学方程式（在 OX的转化率<50％时适用）,为气液反应器放大提供计算氧化速度的动力学 模型。 本工作还对邻二甲苯氧化七组分的主副反应动力学进行研究,测定了不同温度下各反应的速率常数和活化能。其数值与采用鼓泡塔氧化的结果相一致,再次表明邻二甲苯氧化为串、并联一级反应。
In the stirred tank (φ107 × 350mm) o-xylene liquid phase oxidation kinetics, the results show that under the experimental conditions (speed of the stirred tank reactor was 1200rpm empty line speed ≥ 1.5cm / s, the oxidation temperature of 130 ℃ below) can eliminate mass transfer effects. In this study, a kinetic equation for the oxidation of o-xylene (OX) was established (when OX conversion was <50%), a kinetic model for calculating the oxidation rate for gas-liquid reactor amplification was provided. In this work, the primary and secondary kinetics of o-xylene oxidation of seven components were also studied. The rate constants and activation energies of each reaction at different temperatures were determined. Their values are consistent with those obtained with the bubble column oxidation, again demonstrating that o-xylene is oxidized to a string, in parallel with the first order reaction.