Catalytic cracking catalyst and preparation method thereof

Abstract

The invention relates to the field of catalytic cracking catalyst preparation, and discloses a catalytic cracking catalyst and a preparation method thereof. The method comprises the following steps: 1) carrying out first ion exchange reaction on a sodium molecular sieve and a solution containing ammonium ions to obtain a molecular sieve subjected to ammonium ion exchange; 2) under a microwave condition, carrying out a second ion exchange reaction on the molecular sieve subjected to ammonium ion exchange and a solution containing rare earth element ions to obtain a molecular sieve containing rare earth elements; and 3) pulping the rare earth element-containing molecular sieve obtained in the step 2), clay, a binder, water and inorganic acid into gel, and drying and roasting the obtained gel. By adopting the method provided by the invention, roasting is not needed when the molecular sieve containing the rare earth elements is prepared, the preparation process is simple, and the catalytic cracking catalyst is excellent in catalytic performance.

Description

technical field [0001] The invention relates to the field of catalytic cracking catalyst preparation, in particular to a catalytic cracking catalyst and a preparation method thereof. Background technique [0002] The petroleum refining industry is an important pillar of the national economy, with a long industrial chain and a wide coverage of downstream products, which are closely related to the development of the national economy and people's lives. The most important refining method in the petroleum refining process is catalytic cracking technology, and catalytic cracking catalyst is the core key technology of catalytic cracking technology. With the heavy and inferior quality of crude oil in the world, as well as the increasing demand for clean oil products and increasingly stringent environmental protection requirements, people are forced to develop catalytic cracking with higher catalytic activity, stability and lower sodium content. Catalyst to obtain higher conversion...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a preparation method of a catalytic cracking catalyst and a catalyst prepared therefrom in order to overcome the problems of complex preparation of catalytic cracking catalysts, large energy consumption, and many losses in the prior art, wherein, in the catalytic cracking catalysts The molecular sieve containing rare earth elements, in this method, the molecular sieve containing rare earth elements does not need to be roasted during preparation, the preparation process is simple, and the catalytic cracking catalyst obtained has excellent catalytic performance

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