Modified Y Zeolites and Their Behaviors in Selective Adsorptive Desulfurization for FCC Gasoline

Journal of Petrochemical Universities ›› 2009, Vol. 22 ›› Issue (2): 49-51.

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Modified Y Zeolites and Their Behaviors in Selective Adsorptive Desulfurization for FCC Gasoline

Liaoning Key Laboratory of Petrochemical Engineering, Liaoning University of Petroleum & Chemical Technology,Fushun Liaoning 113001，P．R．China

Received:2008-09-01 Revised:2008-11-13 Published:2009-06-25 Online:2009-06-25

Y型分子筛的改性成型及其对FCC汽油脱硫效果的研究

朱赫礼, 宋丽娟, 高翔, 王洪国, 孙兆林

辽宁石油化工大学辽宁省石油化工重点实验室，辽宁抚顺113001

作者简介:朱赫礼(1981 -), 男, 辽宁大连市, 在读硕士
基金资助:
国家自然基金资助项目(No .20476042;No .20776064)

Abstract

Abstract:

NaY zeolite was modified with oxalic acid. The HY zeolite were obtained by liquid phase ion exchange. And two Y zeolites (NaY,HY) were compared by selective adsorptive desulfurization from FCC gasoline.The results show that the HY zeolite adsorptive desulfurization effect is better than NaY zeolite. The molded HY zeolite is more effective than the unmolded HY zeolite. HY zeolite which contained 25%(mass fraction) γAl₂O₃ is more effective than HY zeolite which did not. When the static adsorptive desulfurization time of HY zeolite is 6 h,mass ratio of solid and fuel is 1∶3, WHSV is 0.5 h^-1 ,the effect of HY is the best. The rate of regeneration of the molded HY zeolites is 92.69%.

Key words: Dealumination , Zeolite , FCC gasoline , Adsorptive desulfurization

摘要： 利用草酸对NaY分子筛进行脱铝改性，然后进行液相离子交换制得 HY分子筛。并用HY和NaY 分子筛进行FCC汽油的脱硫效果对比。结果表明，HY分子筛吸附脱硫效果明显好于NaY分子筛；成型HY分子筛比未成型HY分子筛的吸附脱硫效果好，HY分子筛中添加质量分数为25%的γAl₂O₃比不添加γAl₂O₃的 HY 分子筛的吸附脱硫效果好。HY分子筛静态吸附脱硫最佳时间为6 h，最佳剂油质量比为1∶3，最佳质量空速为0 .5 h - 1，再生后的成型 HY( w (γAl₂O₃) = 25% )能恢复到原来吸附能力的92 .69%。

关键词: 脱铝 , 分子筛 , FCC 汽油 , 吸附脱硫

ZHU He-li, SONG Li-juan, GAO Xiang, et al. Modified Y Zeolites and Their Behaviors in Selective Adsorptive Desulfurization for FCC Gasoline [J]. Journal of Petrochemical Universities, 2009, 22(2): 49-51.

朱赫礼, 宋丽娟, 高翔. Y型分子筛的改性成型及其对FCC汽油脱硫效果的研究[J]. 石油化工高等学校学报, 2009, 22(2): 49-51.

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Modified Y Zeolites and Their Behaviors in Selective Adsorptive Desulfurization for FCC Gasoline

Y型分子筛的改性成型及其对FCC汽油脱硫效果的研究

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