Synthesis of the hierarchical Fe-substituted porous HBeta zeolite and the exploration of its catalytic performance

TIAN Ren; WANG Shi-yao; LIAN Chen-shuai; WU Xu; AN Xia; XIE Xian-mei

Volume 47 Issue 12

Dec. 2019

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Article Navigation > Journal of Fuel Chemistry and Technology > 2019 > 47(12): 1476-1485

TIAN Ren, WANG Shi-yao, LIAN Chen-shuai, WU Xu, AN Xia, XIE Xian-mei. Synthesis of the hierarchical Fe-substituted porous HBeta zeolite and the exploration of its catalytic performance[J]. Journal of Fuel Chemistry and Technology, 2019, 47(12): 1476-1485.

Citation:

TIAN Ren, WANG Shi-yao, LIAN Chen-shuai, WU Xu, AN Xia, XIE Xian-mei. Synthesis of the hierarchical Fe-substituted porous HBeta zeolite and the exploration of its catalytic performance[J]. Journal of Fuel Chemistry and Technology, 2019, 47(12): 1476-1485.

Citation:

TIAN Ren, WANG Shi-yao, LIAN Chen-shuai, WU Xu, AN Xia, XIE Xian-mei. Synthesis of the hierarchical Fe-substituted porous HBeta zeolite and the exploration of its catalytic performance[J]. Journal of Fuel Chemistry and Technology, 2019, 47(12): 1476-1485.

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Synthesis of the hierarchical Fe-substituted porous HBeta zeolite and the exploration of its catalytic performance

1.
College of Chemistry and Chemical Engineering Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China
2.
College of Food Science and Engineering, Shanxi Agricultural University, Jinzhong 030600, China

Funds:

the National Natural Science Foundation of China 51541210

Natural Science Foundation of Shanxi Province 201701D121042

More Information

Corresponding author: XIE Xian-mei, Tel/Fax: 86-351-6010554, E-mail: xxmtougao@sina.com
Received Date: 2019-09-09
Rev Recd Date: 2019-10-25

Available Online: 2021-01-23

Publish Date: 2019-12-10

Abstract

Abstract

A series of hierarchical isomorphically Fe-substituted porous beta zeolites (BEAs) was synthesised in a one-step process via soft-template approach (nFe-HBeta, n=Fe/Al) and a series of Ni-based catalysts (10Ni/nFe-HBeta) was prepared by equal volume impregnation. The results showed that the nFe-HBeta zeolites possessed a sheet-like structure with a high crystallinity and numerous porous channels. The introduction of the heterogeneous iron atoms could reduce the degree of order of the mesoporous phase and decrease the size of the zeolite particles and the number of moderate and strong acidic sites. For the 10Ni/nFe-HBeta catalyst, a synergistic effect existed between the framework iron and NiO species, which could enhance the interaction between the active Ni and HBeta support, increase the dispersion of the active metal Ni, and reduce the NiO particle size. In the ethanol steam reforming (ESR) reaction, Fe introduction could inhibit the ethanol dehydration reaction through the shielding of acidic sites and could promote the steam reforming reaction of CO and CH₄, effectively improving the H₂ selectivity. Among the Fe-containing catalysts, 10Ni/0.15Fe-HBeta showed a H₂ selectivity of up to 72.15% and an ethanol conversion rate of 99.6% at 500 ℃, while the amount of coke deposition was only 4.3% after a 12 h reaction.
- Fe-substituted,
- HBeta zeolite,
- Ni-based catalyst,
- ethanol steam reforming

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References(27)

References

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