Citation: LIU Peng, SHEN Jian. Preparation of ZSM-5-SBA-15 composite molecular sieves and its performance for toluene alkylation with methanol[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(9): 1147-1152. shu

Preparation of ZSM-5-SBA-15 composite molecular sieves and its performance for toluene alkylation with methanol

LIU Peng ,
SHEN Jian ^,

1.
College of Petrochemical Engineering, Liaoning Shihua University, Fushun 113001, China

Corresponding author: SHEN Jian,
Received Date: 10 November 2014
Available Online: 13 January 2015

A series of ZSM-5-SBA-15 composite molecular sieves were prepared by post-synthesis method and characterized by XRD, FT-IR, BET, NH₃-TPD and pyridine infrared. The results indicated that ZSM-5-SBA-15 has both ZSM-5 microporous and SBA-15 mesoporous structure. The adsorption-desorption measurement using pyridine and ammonia demonstrated that acidity of SBA-15 was heightened because ZSM-5 was introduced into. Compared with ZSM-5, the acidic sites on ZSM-5-SBA-15 were still accessible. However, the strength of acidity was weakened. In the probe reaction of the alkylation of toluene and methanol, the ZSM-5-SBA-15 composite exhibited higher para-xylene selectivity in comparison to pristine ZSM-5.
- ZSM-5-SBA-15,
- ZSM-5,
- SBA-15,
- para-xylene,
- alkylation
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