METHOD FOR THE SYNTHESIS OF POROUS INORGANIC MATERIAL, CATALYTIC CRACKING OF PETROLEUM HYDROCARBONS AND PREPARATION OF CATALYST THEREOF

摘要

A method for synthesis of porous inorganic materials, preparation of a catalyst and catalytic cracking of petroleum hydrocarbons thereof includes processes for synthesis of porous inorganic materials and preparation of the catalytic cracking catalyst and catalytic cracking of petroleum hydrocarbons. The synthesis process is advantaged in low cost in raw materials; the porous inorganic material has various pore structures; and transitional metal used overcomes the defects of the catalytic properties. The porous inorganic material serving as the main active ingredient and containing crystalline aluminum silicate zeolite structures provides surface acidity required by the catalytic reaction. The surface acidity is flexibly adjusted. The hierarchical pore profile improves the accessibility of the active center of the zeolite structure and favors the reaction efficiency and benefits of the petroleum hydrocarbon cracking, and reduces the negative effects caused by diffusion limit. The catalyst containing the porous inorganic material has low manufacturing cost and better properties.

主权项

1. A process for synthesizing porous inorganic material comprising:
step 1) calcinating natural clay; step 2) adding the calcined clay into a silicon-contained solution, and mixing; step 3) adding metal ions to the obtained slurry of step 2) and mixing; step 4) crystallizing and filtering the obtained slurry of step 3) to obtain filer cakes; and step 5) drying the obtained filer cakes of step 4) to obtain the porous inorganic material.