PREPARATION METHOD MESOPOROUS ZSM-5 CATALYST AND PRODUCTION METHOD OF LIGHT OLEFINS USING THE CATALYST

摘要

PURPOSE: A manufacturing method of mesopore ZSM-5 catalyst, and a manufacturing method of light olefin using the catalyst are provided to improve the manufacture yield of light olefin, and to manufacture economical catalyst by adding only an optimum heat treatment condition for an optimum content of carbon and the plasticizing of the carbon. CONSTITUTION: A manufacturing method of mesopore ZSM-5 catalyst comprises the following steps: forming gel by aging a mixed solution containing silicon precursor and aluminum precursor (S100); adding carbon powder to the gel, mixing the carbon powder and the gel, and aging the mixture (S200); crystallizing the aged mixture, and forming a solid product (S300); and thermal treating the solid product to remove carbon (S400). The carbon powder is more than one selected in a group comprising sphere, square and rectangular type particles having a 2-50nm diameter. 5-30wt% of the carbon powder is added to 100wt% of the mesopore ZSM-5 catalyst. In the mesopore ZSM-5 catalyst, the atomic ratio of Si/Al is 5-300. [Reference numerals] (AA) Start; (BB) End; (S100) Forming gel using a ZSM-5 catalyst precursor solution; (S200) Adding carbon powder, stirring, and aging; (S300) Forming a solid product by crystallization; (S400) Removing carbon by thermal treatment; (S500) Substituting the cation of the solid product; (S600) Thermally treating the solid product;