燃料化学学报Issue(12)：1485-1492,8.
Cu（I）－Ce（IV）－Y吸附剂的制备及其脱硫性能研究
Preparation of Cu(I)-Ce(IV)-Y adsorbent and its adsorptive desulfurization performance
摘要
Abstract
Cu( I) Y, Ce( IV)-Y an d Cu( I)-Ce( IV)-Y adsorbents were successfully prepared by liquid-phsa e ion-exchange of Y zeolites with combined Cu and Ce ions.The adsorbents were characterized by means of X-ray d iffratc ion ( XRD ) andN 2-adsorption specific surface area measurements ( BET ) .The effect ofp reparation oc nditoi ns on the adsopr tive desulfurization properties over Cu ( I )-Ce (I V )-Y were studied by a static ed sulfurization method.The breakthrough suluf r capacities fo the da sorbents weer stud ide in a fiex d-bde reactor system.Meanwhile, adsorptive desulfurization selectivities of the adsorbents were studied through model fuels, which made up of 1-octane solution of benzot hiophene and thiophene, then respectively mixed with a certain amount of toluene, cyclohexene or pyridine.The results indicate that the optimum preparation conditions of Cu(I)-Ce(IV)-Y is ion-exchange time of 48 h, Cu/Ce molar ratio of 1, and calcination temperature of 550℃. Cu( I)-Ce( IV)-Y adsorbent exhibited the best desulfurization performance with model fuels, which contain a certain amount of toluene and cyclohexene.The effect of toluene, cyclohexene and pyridine at the same concentration, on the metal ion-exchanged Y zeolites for sulfur removal is in the order:pyridine>cyclohexene>toluene.The introduction of Cu+can improve the desulfurization activity of adsorbent, while the introduction of Ce4+can improve the selectivity of adsorbent.The synergistic effect of Cu+and Ce4+contribute to Cu ( I)-Ce ( IV)-Y not only has the high sulfur adsorption capacity but also has the ability of resistance to aromatics and olefins.关键词
Cu(I)-Ce(IV)-Y/制备/苯并噻吩/吸附脱硫Key words
Cu( I)-Ce( IV)-Y/preparation/benzothiophene/adsorptive desulfurization分类
化学化工引用本文复制引用
宋华,高慧杰,宋华林,崔雪涵,万霞,苑丹丹..Cu（I）－Ce（IV）－Y吸附剂的制备及其脱硫性能研究[J].燃料化学学报,2014,(12):1485-1492,8.基金项目
黑龙江省自然基金（ ZD201201）。 （）
