Environmental impact mitigation is one of the grand challenges for industries globally. Volatile organic compounds (VOCs) are solvents whose emissions are potentially toxic to human health and ecosystems yet indispensable for the manufacturing of life-saving medicine. Adsorption with activated carbon columns is an established countermeasure for end-of-pipe emission control, whose efficiency, however, is impeded by irregular bed saturation due to the complex nature of its inputs. This work presents the application of a validated nonisothermal adsorption model to examine multicomponent trace mixtures of acetone–toluene and benzene–toluene on activated carbon. Our results indicate preferential adsorption of toluene over both acetone and benzene for all concentrations examined, which is in agreement with experimental data. Moreover, moderate temperature variations and pressure drops are revealed. Finally, Glueckauf’s hodograph theory is employed for maximum outlet concentration prediction and compared with simulation results and experimental data, thus providing valuable insights into nonisothermal VOC abatement, which paves the way for industrial operation optimization.

中文翻译：

---

用于工业挥发性有机化合物 (VOC) 减排的丙酮-甲苯和苯-甲苯系统的动态模型验证和模拟

减轻环境影响是全球各行业面临的重大挑战之一。挥发性有机化合物 (VOC) 是一种溶剂，其排放对人类健康和生态系统具有潜在毒性，但对于生产救生药物是必不可少的。活性炭柱吸附是管端排放控制的一种既定对策，但由于其输入的复杂性，其效率受到不规则床饱和的阻碍。这项工作提出了应用经过验证的非等温吸附模型来检查活性炭上丙酮-甲苯和苯-甲苯的多组分痕量混合物。我们的结果表明，在所有检测浓度下，甲苯比丙酮和苯优先吸附，这与实验数据一致。此外，还揭示了适度的温度变化和压降。最后，采用Glueckauf的光记录仪理论进行最大出口浓度预测，并与模拟结果和实验数据进行比较，从而为非等温VOC减排提供有价值的见解，为工业运行优化铺平道路。