| 摘要 |
A modified zeolite beta having an anhydrous chemical formula, by weight % of the oxides, of (0-0.3)Na<SUB>2</SUB>O.(0.5-10)Al<SUB>2</SUB>O<SUB>3</SUB>.(1.3-10)P<SUB>2</SUB>O<SUB>5</SUB>.(0.7-15)M<SUB>x</SUB>O<SUB>y</SUB>.(70-97)SiO<SUB>2</SUB>, wherein M is one or more transition metal(s) selected from the group consisting of Fe, Co, Ni, Cu, Mn, Zn and Sn, x is the number of the atoms of said transition metal M, and y is a number that meets with the requirement of the oxidation state of said transition metal M, is disclosed. The modified zeolite beta can be used as an active component of a cracking catalyst or additive for catalytic cracking of petroleum hydrocarbons.
|
