Effective adsorptive denitrogenation from model fuels over yttrium ionexchanged Y zeolite

Fuping Tian; Xin Sun; Xinyi Liu; Hongluan Zhang; Jiaxu Liu; Hongchen Guo; Yifu Zhang; Changgong Meng

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Effective adsorptive denitrogenation from model fuels over yttrium ionexchanged Y zeolite

Separation Science and Engineering | Updated：2026-01-06

- Effective adsorptive denitrogenation from model fuels over yttrium ionexchanged Y zeolite
- Chinese Journal of Chemical Engineering Vol. 28, Issue 2, Pages: 414-419(2020)
- Affiliations：
  
  1. School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology,Dalian,China,116024
  2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences,Dalian,China,116023
  3. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology,Dalian,China,116024
- Author bio：
- Funds：
- DOI：
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- Published：2020
- Accepted：
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Fuping Tian, Xin Sun, Xinyi Liu, Hongluan Zhang, Jiaxu Liu, Hongchen Guo, Yifu Zhang, Changgong Meng. Effective adsorptive denitrogenation from model fuels over yttrium ionexchanged Y zeolite[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 414-419.
DOI：

Fuping Tian, Xin Sun, Xinyi Liu, Hongluan Zhang, Jiaxu Liu, Hongchen Guo, Yifu Zhang, Changgong Meng. Effective adsorptive denitrogenation from model fuels over yttrium ionexchanged Y zeolite[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 414-419. DOI：

摘要

Abstract

The adsorption removal of indole and quinoline in octane with and without toluene over zeolites NaY and Yttrium Ion-exchanged Y (YY) using batch adsorption experiments was studied at 25 ℃ and 0.1 MPa. YY was prepared by treating NaY with Y(NO

)

solution twice via liquid ion-exchange method. NaY and YY were both characterized by XRD

SEM

adsorption

XRF

-TPD

and pyridine-FTIR techniques. Adsorption isotherms of indole

quinoline and toluene in octane were conducted at 25.0 ℃ to explain the influence of toluene on nitrogen removal over NaY and YY. The partial destruct of the crystalline structure of NaY was observed after the introduction of yttrium ion

which led to an evident decline in BET surface area and pore volume of YY. Strong Brönsted acidity and medium Lewis acidity were introduced by yttrium ion-exchange. Though the specific surface area and pore volume of YY were much lower than those of NaY

YY exhibited equivalent adsorption capacities for indole and quinoline as NaY in model fuels without toluene. In the presence of 20 vol% toluene

however

YY exhibited much higher adsorption capacities for indole and quinoline than NaY

especially

in the case of quinoline. The improved toluene-tolerant of YY was ascribed to the strong acid-base interaction between YY and quinoline and the decreased adsorption strength between YY and toluene.

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