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Synthesis of ZSM-5 Zeolite with High Si/Al Ratio in Ethanol System
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Jinquan TAO1, 2, Yan CUI1, Shuying ZHANG1, 2, Kebin CHI1, Yasong ZHOU2
Journal of the Chinese Ceramic Society | 2021, 49(9) : 2009 - 2016
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Journal of the Chinese Ceramic Society | 2021, 49(9): 2009-2016
• Research Article •
Synthesis of ZSM-5 Zeolite with High Si/Al Ratio in Ethanol System
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Jinquan TAO1, 2, Yan CUI1, Shuying ZHANG1, 2, Kebin CHI1, Yasong ZHOU2
Affiliations
  • 1.PetroChina Petrochemical Research Institute, Beijing 102206, China
  • 2.China University of petroleum-Beijng, Beijing 102206, China

    • TAO Jinquan (1994-), male, Master. E-mail:

About Author:

TAO Jinquan (1994-), male, Master. E-mail:

Published: 2021-09-20 doi: 10.14062/j.issn.0454-5648.20210032
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ZSM-5 zeolite with a high Si/Al ratio (n(SiO2)/n(Al2O3)>70) was synthesized in ethanol system via seed-assisted crystallization. The crystal form, morphology and pore structure of ZSM-5 zeolite were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that ZSM-5 zeolite with high crystallinity and well-dispersion can be directly synthesized in a single ethanol system when Si/Al ratio is lower than 70 and ethanol/Si ratio is 1.5. However, it is difficult to synthesize ZSM-5 zeolite with a high crystallinity in a single ethanol system when Si/Al ratio is greater than 90. Also, the addition of a small amount of seed can increase Si/Al ratio of ZSM-5 zeolite synthesized in ethanol system to 150, and shorten the crystallization induction period and overall crystallization time. The morphology of ZSM-5 zeolite in seed-assisted crystallization is different from that of ZSM-5 zeolite synthesized in seed or ethanol alone, and the grain sizes are more uniform and the dispersion is higher. The optimum ratio of alkali to silicon decreases with the increase of Si/Al ratio, but it is still necessary to provide enough alkali to dissolve silicon source for crystallization.

ZSM-5 zeolite  /  ethanol  /  seed  /  hydrothermal synthesis  /  alkali silica ratio
陶金泉, 崔岩, 张淑莹, 迟克彬, 周亚松. 乙醇体系合成高硅铝比ZSM-5分子筛. 硅酸盐学报, 2021 , 49 (9) : 2009 -2016 . DOI: 10.14062/j.issn.0454-5648.20210032
Jinquan TAO, Yan CUI, Shuying ZHANG, Kebin CHI, Yasong ZHOU. Synthesis of ZSM-5 Zeolite with High Si/Al Ratio in Ethanol System[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (9) : 2009 -2016 . DOI: 10.14062/j.issn.0454-5648.20210032
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Year 2021 volume 49 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20210032
  • Receive Date：2021-01-11
  • Online Date：2026-10-30
  • Published：2021-09-20
Article Data
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History
  • Received：2021-01-11
  • Revised：2021-03-04
Funding
Affiliations
    1.PetroChina Petrochemical Research Institute, Beijing 102206, China
    2.China University of petroleum-Beijng, Beijing 102206, China

Corresponding:

CUI Yan (1988-), male, Engineer. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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