摘要
为生产清洁能源,采用光催化氧化法对催化裂化汽油进行了脱硫研究。通过对汽油光化学法脱硫工艺的研究发现,不同的光敏剂的作用机理不同,汽油的脱硫率也不同。采用BZP为光敏剂时,BZP对光的有效吸收很重要,在水相中的脱硫效果好于油相;脱硫是光照产生的气泡中的激发态氧进入上层后,与含硫化合物反应达到脱硫目的。当以十六烷基三甲基溴化铵为光敏剂时,既是阳离子型光引发剂,又作为相转移剂,在双重作用下促进了脱硫的进行,光照10h,脱硫率高达90%以上。
To produce clean energy, the study on oxidation desulfurization from catalytic cracking gasoline by photocatalysis is investigated. It is found that different photo sensitizer has different mechanism of action and the desulfurizative rate of gasoline is various. When BZP is used as photo sensitizer, the effective photo absorption is very important and the desulfurizative effect in water is better than in oil. Desulfurizative is proceeding by the reaction of sulfur-containing compounds with the excited oxygen that from air bubble produced by the inraddiation. When hexadecyl trimethyl ammonium bromide is used, which is cationic photo initiator and phase transfer catalyst, the desulfurizative rate is up to 90% when inraddiation time is 10h.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2006年第3期191-194,共4页
Chemical engineering of oil & gas
基金
国家自然科学基金项目(项目编号:20276015)
河北省自然科学基金项目(项目编号:203364)。
关键词
光敏刑
光催化
汽油
氧化脱硫
photo sensitizer,photocatalysis,gasoline,oxidation,desulfurization
