Semi-synthesized olefins conversion catalyst containing modified nano aluminium oxide

Abstract

The invention is a conversion catalyzer of half-synthetical hydrocarbon, containing denaturing nano alumina. It disperses synthetic molecular screen and denaturing nano alumina containing Ce, Zr and Mg to inorganic oxide clay and natural aluminium silicate clay, mixes into serum, and makes jet-drying shaping, washing and drying to get the conversion catalyzer. It is especially applied to process heavy raw materials with Ni and V.

Description

technical field [0001] The present invention relates to petroleum hydrocarbon conversion catalyst, more specifically, the catalyst is a semi-synthetic hydrocarbon cracking catalyst containing modified nanometer alumina. Background technique [0002] The development of deep conversion of heavy oil, the increase of light oil products, and the production of clean fuels are all closely related to the performance of catalytic cracking (FCC) catalysts. [0003] FCC feedstocks contain heavy metals Ni, V, which contaminate the catalyst. In the regenerator, V on the catalyst forms vanadium pentoxide, which will cause irreversible damage to the zeolite crystal structure in the water vapor atmosphere, resulting in a decrease in the surface area and activity of the catalyst, and a decrease in gasoline selectivity. Ni on the catalyst, as a deoxidizing component, will increase the H 2 and coke, reduce the yield of high-value products such as gasoline, and limit the processing capacity o...

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Problems solved by technology

In the regenerator, V on the catalyst forms vanadium pentoxide, which will cause irreversible damage to the zeolite crystal structure in the water vapor atmosphere, resulting in a decrease in the surface area and activity of the catalyst, a

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