| 摘要 |
A composition of matter comprising both zeolite Beta and a Y zeolite having a unit cell size above about 24.40 angstroms and, preferably, a water vapor sorptive capacity at 25 DEG C, and a p/po value of 0.10 of greater than 15 weight percent. Typical of the Y zeolites used in the composition of the invention are steam-stabilized Y zeolites such as LZY-82 and LZY-84 zeolites. The composition is especially suited for use in combination with one or more hydrogenation components as a catalyst for hydrocracking various types of feedstocks. |
