Citation: DAI Yu, ZHOU Ya-song, WEI Qiang, CUI Qing-yan, QIN Zhen. Influences of Al modification on the properties and catalytic performance of SBA-15 molecular sieves in hydrocracking[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(12): 1502-1506. shu

Influences of Al modification on the properties and catalytic performance of SBA-15 molecular sieves in hydrocracking

1.
State Key Laboratory of Heavy Oil Processing, China University of Petroleum(Beijing), Beijing 102249, China

Corresponding author: ZHOU Ya-song,
Received Date: 19 March 2013
Available Online: 13 May 2013
Fund Project:

SBA-15 molecular sieves were modified with Al by adjusting pH value and post-grafting synthesis and used as the catalysts for hydrocracking. The new mesoporous materials were characterized by XRD, ²⁷Al NMR, N₂ adsorption and desorption and NH₃-TPD. The results showed that Al-SBA-15 is successfully obtained through synthesis via adjusting pH value; it exhibits an ordered hexagonal mesoporous structure and well hydrothermal stability. Al modification is able to enhance the amount of surface acid sites of SBA-15, which induces the Al-SBA-15 catalyst with high selectivity to middle distillate for hydrocracking.
- pH value adjusting method,
- Al-SBA-15,
- acidity,
- hydrocracking catalysts
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