4.6 Article

Acid and steric synergies in industrial Y zeolites for 9, 10-dihydroanthracene hydrocracking

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CATALYSIS COMMUNICATIONS
卷 177, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.catcom.2023.106655

关键词

Y zeolite; Hydrocracking; Dihydroanthracene; Acid; Hierarchical pore

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In the hydrocracking of 9, 10-dihydroanthracene, the acid sites and their locations in Y zeolites are crucial. The dominant reaction for industrial Y zeolites is hydrogen transfer, regardless of temperature. Y zeolites with developed mesopores exhibit enhanced ring-opening and cracking ability due to improved molecular transport and accessibility of acid sites. The amount of highly strong Bronsted acid sites in high-silica Y zeolites is crucially related to their ring-opening and cracking ability. The rational elucidation of the reaction processes of 9, 10-dihydroanthracene hydrocracking over industrial Y zeolites with different properties.
In the hydrocracking of 9, 10-dihydroanthracene, acid sites and their locations in the Y zeolites play crucial roles. Hydrogen transfer is the dominant reaction for the industrial Y zeolites with undeveloped mesopores whether at low or high temperatures. Those with developed mesopores exhibit enhanced ring-opening and cracking ability due to the improved molecular transport and accessibility of acid sites. Their ring-opening and cracking ability is crucially related to the amount of highly strong Bronsted acid sites in the high-silica Y zeolites. The reaction processes of 9, 10-dihydroanthracene hydrocracking over the industrial Y zeolites with different properties were expounded rationally.

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