| 摘要 |
PURPOSE: To improve the catalytic activity, durability, etc., by forming a catalyst with a pentasil type crystalline aluminosilicate having a specified BET-surface area value and pore volume value and also Si/Al atomic ratio of more than 10. CONSTITUTION: The catalyst constituted of a primary crystal being mutually joined by finely dispersed aluminum oxide obtained by hydrolysis of an aluminum org. compd., having an average diameter of at least 0.1 micron and at most 0.9 micron and partially combined into agglomerates and consisting of the pentasil type crystalline aluminosilicate having 300-600 m<2> /g BET-surface area, 0.3-0.8 cm<3> /g pore volume (determined by mercury porosimetry) and the Si/Al atomic ratio of more than 10 is formed. The catalyst is useful for the catalyst for producing olefin and benzene by methanol conversion method. |
