In this paper, three kinds of Mn-based catalysts over γ-Al₂O₃, SiO₂ and TiO₂ were synthesized to evaluate the toluene catalytic degradation by ozone under the related industrial conditions (ie., temperature, SO₂ and water vapor addition). Results show that the total acid and Mn³⁺ content on catalyst surface have a positive correlation with catalytic activity, thereby MnO_x supported on γ-Al₂O₃ achieving the highest toluene conversion and ozone decomposition efficiency. Key operating parameters of reaction temperature, initial toluene concentration and O₃/C₇H₈ ratio were investigated over MnO_x/γ-Al₂O₃ to get the optimal daily operation condition. The suitable temperature range was 100∼120 °C, whereas too high or too low temperature both inhibited catalytic activity. Catalyst poisoning occurred as SO₂ or water vapor was added, but fortunately, the toluene conversion efficiency could recover once SO₂ or water vapor was stopped. Finally, in-situ DRIFTS measurement was carried out to reveal the reaction process and SO₂ effect.

本文三种Mn系催化剂上的γ-Al系₂ ö ₃的SiO ₂和TiO ₂进行合成，以评估甲苯催化降解通过臭氧相关工业条件下（即，温度，SO ₂和水蒸汽加成）。结果表明，总酸和Mn ³⁺上的催化剂表面具有内容具有催化活性正相关，从而MnO的_X支持的γ-Al ₂ ö ₃实现最高甲苯转化率和臭氧的分解效率。反应温度，初始甲苯浓度和O ₃ / C _7的关键操作参数ħ ₈比过的MnO进行了调查_X /γ-Al系₂ ö ₃，以获得最佳的日常操作条件。合适的温度范围是100〜120℃，而过高或过低均会抑制催化活性。添加SO ₂或水蒸气会发生催化剂中毒，但幸运的是，一旦停止SO ₂或水蒸气，甲苯的转化效率就可以恢复。最后，进行了原位DRIFTS测量，以揭示反应过程和SO ₂效果。