钼（VI）配合物催化氧化降解沥青砂中重组分过程研究

摘要: 针对沥青砂的重组分，探讨了催化氧化沥青砂降解反应体系有机相和残余相中有机物的量随反应时间、催化剂及氧化降解体系的变化规律。结果表明，钼（VI）配合物［(MoO2)(C5H7O2)2］催化剂对沥青砂的氧化降解是非常有效的，催化降解反应与氧化剂、氢质子供体有关。在［(MoO2)( C5H7O2)2］/t-BuOOH/H3PO4体系中，沥青砂有机相中沥青质转化率为10.7%，残余相中沥青质转化率为20%。TLC-FID分析证明，沥青砂中沥青质的减少主要生成胶质和饱和烃，降解产物的得率为11.7%。

Abstract: This paper illustrates the reaction pattern of the catalytic oxidative degradation of macromolecule in asphaltic sands. Parameters, including reaction time, catalyst system, that affect the change in the weight of organic phase and residual phase, were investigated in detail. It was found that ［(MoO2)( C5H7O2)2］ is an effective catalyst for the oxidative degradation of macromolecule in asphaltic sands. The reaction of the catalyzed degradation is related to the oxidant, H+ proton donator. In ［(MoO2)( C5H7O2)2］/t-BuOOH/ H3PO4 system, the conversion of asphaltene reaches 10.7% in organic phase and 20% in residual phase. The TLC-FID (Thin Layer Chromatography-Flame Ionization Detector) analysis indicates that the asphaltenes in asphaltic sands was transformed into resin and saturates. The yield of the degradation product is 11.7%.