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Acid and steric synergies in industrial Y zeolites for 9, 10-dihydroanthracene hydrocracking.
- Source :
-
Catalysis Communications . Apr2023, Vol. 177, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- 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 Brønsted 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. • 9, 10-DHA on various Y zeolites follows the different hydrocracking routes. • Highly strong B acid formed in supercage is key to ring-opening and cracking. • Enhanced acidic accessibility by mesopores promote the ring-opening and cracking. • Acidic and textural properties show synergetic effects on the hydrocracking. • The acidic and textural properties of Y zeolites affect the activation to H 2. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ZEOLITES
*HYDROCRACKING
*BRONSTED acids
*ZEOLITE Y
*MESOPORES
*LOW temperatures
Subjects
Details
- Language :
- English
- ISSN :
- 15667367
- Volume :
- 177
- Database :
- Academic Search Index
- Journal :
- Catalysis Communications
- Publication Type :
- Academic Journal
- Accession number :
- 163228283
- Full Text :
- https://doi.org/10.1016/j.catcom.2023.106655