通过浸渍法将正辛酸-ZnCl₂低共熔溶剂负载到Al₂O₃上制备负载型催化剂正辛酸-ZnCl₂/Al₂O₃。以正辛酸-ZnCl₂/Al₂O₃为催化剂、过氧化氢为氧化剂脱除模拟油中的噻吩类硫化物。利用XRD、FT-IR、BET、EDS、SEM对其结构进行表征分析，同时考察了脱硫实验中反应温度、催化剂质量、O/S摩尔比、不同硫化物等因素对脱硫效果的影响。实验结果表明，在模拟油用量为5 mL、催化剂质量为0.5 g、O/S摩尔比为6、反应温度为60℃、反应时间为180 min的条件下，二苯并噻吩（DBT）脱除率为99.2%。催化剂循环使用5次DBT的脱除率没有明显变化。此外，研究了正辛酸-ZnCl₂/Al₂O₃负载型低共熔溶剂催化氧化的反应机理。

C₈H₁₆O₂-ZnCl₂/Al₂O₃,a supported catalyst,is prepared through the immersion method by loading n-octanoic acid-ZnCl₂ eutectic solvent onto Al₂O₃.Thiophene sulfide in model oil is removed with C₈H₁₆O₂-ZnCl₂/Al₂O₃ as catalyst and H₂O₂ as oxidant.The structure of catalyst is characterized by XRD,FT-IR,BET,EDS and SEM.The effects of reaction temperature,catalyst dosage,O/S molar ratio and different sulfides on desulfurization efficiency are studied.It is indicated that the removal rate of DBT can attach to 99.2% when the amount of model oil is 5 mL,catalyst dosage is 0.5 g,O/S molar ratio is 6,reaction temperature remains at 60℃ and reaction lasts for 180 min.There is no significant decline in activity of catalyst after it is recycled for 5 times.In addition,the reaction mechanism of catalytic-oxidation of n-octanoic acid/ZnCl₂-Al₂O₃ DES is studied.

付琦(1990-),男,硕士研究生,研究方向为清洁燃料生产,2653959162@qq.com