Adsorption, desorption and conversion of methylthiophene on HY zeolite

ZHAO Sheng-nan; MO Zhou-sheng; QIN Yu-cai; SONG Yan-fen; SHI Li-fei; ZHU Meng-meng; SONG Li-juan; DUAN Lin-hai

Volume 43 Issue 05

May 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(05): 614-619

ZHAO Sheng-nan, MO Zhou-sheng, QIN Yu-cai, SONG Yan-fen, SHI Li-fei, ZHU Meng-meng, SONG Li-juan, DUAN Lin-hai. Adsorption, desorption and conversion of methylthiophene on HY zeolite[J]. Journal of Fuel Chemistry and Technology, 2015, 43(05): 614-619.

Citation:

ZHAO Sheng-nan, MO Zhou-sheng, QIN Yu-cai, SONG Yan-fen, SHI Li-fei, ZHU Meng-meng, SONG Li-juan, DUAN Lin-hai. Adsorption, desorption and conversion of methylthiophene on HY zeolite[J]. Journal of Fuel Chemistry and Technology, 2015, 43(05): 614-619.

Citation:

ZHAO Sheng-nan, MO Zhou-sheng, QIN Yu-cai, SONG Yan-fen, SHI Li-fei, ZHU Meng-meng, SONG Li-juan, DUAN Lin-hai. Adsorption, desorption and conversion of methylthiophene on HY zeolite[J]. Journal of Fuel Chemistry and Technology, 2015, 43(05): 614-619.

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Adsorption, desorption and conversion of methylthiophene on HY zeolite

1.
Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Province, Liaoning Shihua University, Fushun 113001, China;
2.
College of Chemistry & Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China

Received Date: 2014-10-27
Publish Date: 2015-05-30

Abstract

Abstract

HY zeolite obtained from NH₄Y was characterized by N₂ physisorption, NH₃-TPD, and in-situ Py-FTIR. The adsorption, desorption, and conversion of methylthiophene on the HY zeolite was investigated by using the intelligent gravimetric analysis (IGA) and temperature programmed desorption-mass spectrum (TPD-MS). The results indicated that 2-methylthiophene and 3-methylthiophene are strongly chemisorbed on the strong Brnsted acid sites of HY zeolite, which promote the disproportionation, dealkylation and cracking reactions at 200 ℃. Compared with 2-methylthiophene, 3-methylthiophene is prone to crack and form 3-methyltetrahydrothiophene via the hydrogen transfer reactions.
- methylthiophene,
- HY zeolite,
- adsorption,
- disproportionation,
- aealkylation,
- catalytic cracking

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References(37)

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