【摘要】 以过氧化氢为氧化剂,磷钨酸为催化剂,十六烷基三甲基氯化铵为相转移催化剂,糠醛为萃取剂,对焦化汽油进行催化氧化脱硫脱氮,考察了氧化剂体积、催化剂质量、相转移催化剂质量、反应温度、反应时间、萃取剂体积对脱硫脱氮的影响。在焦化汽油的体积50mL、催化剂质量0.32g、相转移催化剂质量0.09g、过氧化氢体积5mL、氧化温度70℃、氧化时间60min的条件下,脱硫率达89.93%,脱氮率达95.10%。向氧化溶液中适当补充氧化剂、相转移催化剂和催化剂后,氧化溶液可以重复使用。萃取剂经过处理可以回收使用。当不添加相转移催化剂时,脱硫率仅为77.35%,脱氮率仅为91.98%,由此可知相转移催化剂的加入使脱硫率明显提高。更多还原

【Abstract】 The oxidation desulfurization and denitrification of coker gasoline were carried out with hydrogen peroxide as the oxidant,phosphorus tungsten acid as catalyst,cetyl trimethyl ammonium chloride as phase transfer catalysts and furfural as extracting agent.The desulfurization and denitrification rate can reach to 89.93% and 95.10% under the following conditions:gasoline 50 mL,catalyst 0.32 g,phase transfer catalyst 0.09 g,hydrogen peroxide 5 mL,oxidation temperature 70 ℃,oxidation time 60 min.The Oxidant Solution can be recycled when replenishing appropriate oxidant and phase transfer catalysts,and the extractant can also be recycled after treatment.Without phase transfer catalyst,the desulphurization and denitrification rate were only 77.35% and 91.98%,respectively.Therefore,phase transfer catalyst can greatly improve the desulfurization performance.更多还原