1. Structural features of binary microporous zeolite composite Y-Beta and its hydrocracking performance
- Author
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Zhang, Xiwen, Guo, Qun, Qin, Bo, Zhang, Zhizhi, Ling, Fengxiang, Sun, Wanfu, and Li, Ruifeng
- Subjects
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ZEOLITE catalysts , *POROUS materials , *HYDROCRACKING , *SILICA , *CHEMICAL structure , *X-ray diffraction , *PYRIDINE spectra , *SURFACE area - Abstract
Abstract: Y-Beta zeolite composites denoted as HS-FBZ (High-Silica-Faujasite-Beta-Zeolite) were synthesized hydrothermally using high silica Y as precursor and characterized by XRD, N2 adsorption, SEM, HRTEM, NH3-TPD and FT-IR spectra of pyridine. The results reveal that the different ratios of Y and Beta zeolites in the composites induced the change of surface areas, pore diameters and acid properties of HS-FBZ, and the extended Beta layers on the zeolite Y surface were observed. The composite exhibited an excellent hydrocracking activity for heavy oil. Compared with the corresponding physical mixture of Y and Beta zeolites, the zeolite composite as a hydrocracking catalyst for vacuum gas oil increased the heavy naphtha yield by 5.61wt% and the jet fuel yield by 11.52wt%. [Copyright &y& Elsevier]
- Published
- 2010
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