Citation: DONG Shi-wei, QIN Yu-cai, RUAN Yan-jun, WANG Yuan, YU Wen-guang, ZHANG Lei, FAN Yue-chao, SONG Li-juan. Performance of adsorptive desulfurization for FCC gasoline over modified Y zeolites[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(3): 341-346. shu

Performance of adsorptive desulfurization for FCC gasoline over modified Y zeolites

1.
1. Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Fushun 113001, China;

Corresponding author: SONG Li-juan,
Received Date: 29 August 2012
Available Online: 13 November 2012
Fund Project: 国家自然科学基金(20976077,21076100) (20976077,21076100)国家重点基础研究发展规划(973计划,2007CB216403) (973计划,2007CB216403)

Cu(I)Y, NiY and CeY zeolites were prepared by liquid phase ion exchange and characterized by means of XRD, ICP/MS and N₂ physisorption. Properties of selective adsorptive desulfurization of FCC gasoline on the adsorbents have been investigated by fixed-bed adsorption experiment and GC-SCD technique, especially the removal selectivity of the sulfur compounds in the oils. The results indicated that the removal selectivities of the sulfur compounds in the gasoline were quite discrepant for different adsorbents, among which, CeY had the sequence of 2-ethyl-5-methylthiophene<thiophene<C₃ mercaptan<C₂-thiophene<2 or 3-methylthiophene<benzothiophene<3,4-dimethylthiophene≈2,3,4-trimethylthiophene<tetrahydrothiophene, while Cu(I)Y and NiY had similar sulfur selectivities with the sequence of C₃ mercaptan<2-ethyl-5-methylthiophene<C₂-thiophene<2 or 3-methylthiophene<thiophene<benzothiophene<3,4-dimethylthiophene≈2,3,4-trimethylthiophene<tetrahydrothiophene. Additionally, it was found that modified Y zeolites had poor removal selectivities of thiophenes and small alkylthiophene molecules.
- Y zeolites,
- FCC gasoline,
- desulfurization,
- adsorption selectivity
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