CeY分子筛的制备及其吸附脱硫性能研究

稀土, 2009, 30(4): 49-53. doi: 10.3969/j.issn.1004-0277.2009.04.011

CeY分子筛的制备及其吸附脱硫性能研究

曾晓放 ^1, , 黎先财 ^2, , 徐庆荣 ^3, , 李世嵩 ^4,

1.南昌大学,化学系,江西,南昌,330031

2.南昌大学,化学系,江西,南昌,330031

3.南昌大学,化学系,江西,南昌,330031

4.南昌大学,化学系,江西,南昌,330031

关键词：水热离子交换 , CeY分子筛 , Cu(I)Y分子筛 , 吸附 , 脱硫

Preparation and Desulfurization Performance Evaluation of CeY Zeolite Adsorbent

采用水热离子交换法制备CeY分子筛,讨论了交换温度、交换时间、NaY分子筛与Ce(NO3)3溶液固液比、Ce(NO3)3溶液浓度对Ce3+交换量的影响;考察了不同Ce3+交换量CeY分子筛的吸附脱硫性能;研究了吸附温度、吸附时间对NaY/Cu(I)Y/CeY分子筛吸附脱硫性能的影响;借助于IR表征手段,分析了模拟燃油中苯和噻吩物种在CeY分子筛和Cu(I)Y分子筛的吸附,结果表明,CeY分子筛的脱硫效率最高(达95.6%),同时对含苯模拟油中的噻吩吸附具有选择性;Cu(I)Y分子筛由于苯和噻吩产生的竞争吸附,在含苯模拟油中脱硫效率有明显降低.

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材料期刊网

CeY分子筛的制备及其吸附脱硫性能研究

Preparation and Desulfurization Performance Evaluation of CeY Zeolite Adsorbent

参考文献