Citation: FAN Yue-chao, ZHEN Xin-ping, NIU Chun-ge, SONG Li-juan. Study on thiol and thioether removal with modified Y zeolite[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(12): 1467-1472. shu

Study on thiol and thioether removal with modified Y zeolite

1.
Refing & Petrochemical Research Institute, PetroChina Karamay Petrochemical Co., Ltd, Karamay 834000, China
2.
Liaoning Key Laboratory of Petrochemical Engineering, Liaoning Shihua University, Fushun 113001, China
3.
College of Chemistry & Chemical Engineering, China University of Petroleum(East China), Qindao 266555, China

Corresponding author: FAN Yue-chao, 5398815@163.com
Received Date: 19 July 2017
Revised Date: 30 October 2017

Figures(6)

Samples of Cu (Ⅰ) Y, NiY and CeY were prepared by modifying a NaY type zeolite with a liquid ion-exchange method and characterized by means of XRD, ICP-MS, pyridine Py-FTIR, NH₃-TPD and low temperature N₂ adsorption-desorption.Use of micro coulombmeter WK-2D, sulfide luminescence detecting chromatography GC-SCD and fixed bed technology to evaluate the desulfurization performance of the samples for a 300 μg/g sulfur content model oil (dipropyl sulfide, cyclohexanol mercaptan and 1-heptyl mercaptan are prepared with nonane, etc.) and a hydrodesulfurization (HDS) gasoline. Results show that Cu (Ⅰ) Y has good adsorption desulfurization performance on those different oils. In the liquid ion-exchange process, the modified Y zeolite's surface acidity has greatly changed. The strong surface Bronsted (B) acidity of modified Y zeolite has negative effects on adsorption desulfurization through catalyzing mercaptan and thioether to form bigger molecules, which cover the surface of Y zeolite and block the adsorption activity sites, resulting in lower sulfur adsorption capacity of the catalyst. The weak surface Lewis (L) acidity has positive effects on adsorption desulfurization.
- Y zeolite,
- mercaptan,
- sulfide,
- adsorption desulfurization,
- catalyze,
- surface acidity
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沈阳化工大学材料科学与工程学院沈阳 110142