Abstract: The desulfurization of model gasoline containing 500 μg/g sulfur by selective adsorption over the metal-organic frameworks (MOFs) of Ag2(4,4'-bipy)2-(O₃SCH₂CH₂SO₃), Ag(4,4'-bipy)NO₃ and Ag(4,4'-bipy)ClO₄ were studied in a static adsorbent at ambient temperature and pressure by using model fuels. The results show that adsorption rate of Ag2(4,4'-bipy)2-(O₃SCH₂CH₂SO₃)，Ag(4,4'-bipy)NO₃ and Ag(4,4'-bipy)ClO₄ reached 70%, and the adsorptive selectivity of Ag2(4,4'-bipy)2-(O₃SCH₂CH₂SO₃) and Ag(4,4'-bipy)ClO₄ to thiophene wouldn't decrease significantly as the concentration of 1-octene increases. Moreover, for the silver-based MOF materials, there is a slight change on their framework after regeneration, however it won't lead to obvious change on the adsorption performance. Meanwhile deep desulfurization of real gasoline were also carried out, and find that sulphur content can decreased from the initial 70 μg/g to 8 μg/g over Ag2(4,4'-bipy)2-(O₃SCH₂CH₂SO₃), and no obvious decrease in desulfurization capability can be observed after recycling 5 times. 

Key words: Metal-organic frameworks, Desulfurization, Thiophene, Gasoline, Ag(I)

摘要： 　以金属骨架材料Ａｇ２（４，４＇－ｂｉｐｙ）２ －（Ｏ_３ＳＣＨ_２ＣＨ_２ＳＯ_３），Ａｇ（４，４＇－ｂｉｐｙ）ＮＯ３和Ａｇ（４，４＇－ｂｉｐｙ）ＣｌＯ４为吸附剂，在常温常压下，研究了不同剂油物质的量比条件下的吸附脱硫效果，并测试了在不同１－辛烯含量的模拟油（含硫质量分数为５００μｇ／ｇ）中的脱硫效果。结果表明：３种吸附剂在吸附前后晶体骨架结构略有改变；对噻吩的吸附程度都能达到７０％左右；随着吸附剂含量的增加，脱硫率明显增加，最多的Ａｇ２（４，４＇－ｂｉｐｙ）２ －（Ｏ_３ＳＣＨ_２ＣＨ_２ＳＯ_３）可以增加１２．２２％；１－辛烯含量对Ａｇ２（４，４＇－ｂｉｐｙ）２ －（Ｏ_３ＳＣＨ_２ＣＨ_２ＳＯ_３）的脱硫效果没有明显影响。同时Ａｇ２（４，４＇－ｂｉｐｙ）２ －（Ｏ_３ＳＣＨ_２ＣＨ_２ＳＯ_３）对真实汽油的吸附脱硫实验表明：在常温常压下，真实汽油含硫质量分数可从７０μｇ／ｇ降低到８μｇ／ｇ；再生后的吸附剂重复使用５次其吸附性能基本不变。

关键词: 金属有机骨架材料 , 吸附脱硫 , 噻吩 , 汽油 , Ａｇ（Ｉ)