Y-SHAPED ZEOLITE HAVING IN-CRYSTAL MULTI-LEVEL PORES, METHOD FOR PREPARATION OF SAID ZEOLITE, AND USE THEREOF

摘要

The present invention provides a Y-shaped zeolite having in-crystal multi-level pores, a method for preparation of said zeolite, and a use thereof. The method comprises: a boron-containing NaY zeolite, an ammonium salt, and water are mixed to obtain a mixture, which is stirred, filtered, and washed to yield an ammonium-type boron-containing Y zeolite; the ammonium-type boron-containing Y zeolite is subjected to high-temperature hydrothermal treatment to yield the Y-shaped zeolite having in-crystal multi-level pores. The Y-shaped zeolite having in-crystal multi-level pores, provided by the present invention, contains an enhanced multi-level pore structure, and the method for preparation of the zeolite is simple. The present invention also provides a use, of the described Y-shaped zeolite having in-crystal multi-level pores, as the active component of a catalytic cracking catalyst and a catalytic hydrogenation catalyst.