Hydrocracking catalyst and preparation method thereof

Abstract

The invention relates to a hydrocracking catalyst and a preparation method thereof. The hydrocracking catalyst consists of hydrogenation active metal and a carrier structured by a modified composite molecular sieve and amorphous aluminium silicate; the hydrogenation active metal is molybdenum and / or tungsten, and / or cobalt, and / or nickel; the molybdenum and / or the tungsten accounts for 15.0-30.0% of the weight of the catalyst as weighed by oxide; the cobalt and / or the nickel accounts for 4.0-8.0% of the weight of the catalyst as weighed by oxide; the balance is the carrier structured by the modified composite molecular sieve and amorphous aluminium silicate; and the modified composite molecular sieve accounts for 10-20% and the amorphous aluminium silicate accounts for 80-90% by metering as the weight of the catalyst. The catalyst has the advantages that the raw materials are cheap and easy to buy; the preparation process is simple and easy to operate and has no generation of poisonous and harmful substances; the adaptability directing at the feature change of the raw materials; and the catalyst is suitable for experiment research on the existing hydrocracking process technology, can effectively solve the laboratory research difficulty and provides a reliable guarantee for the research and implementation of the hydrocracking process technology.

Description

Technical field: [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof, in particular to a zeolite-containing hydrocracking catalyst and a preparation method thereof. Background technique: [0002] In recent years, the demand for clean fuels and high-quality chemical raw materials has been increasing worldwide, and the main characteristics of hydrocracking technology are strong adaptability of raw materials, flexible product solutions, high selectivity of target products, good product quality and high added value, etc. It can directly produce a variety of high-quality petroleum products (such as gasoline, jet fuel, diesel oil, lubricating oil base oil, etc.) and high-quality chemical raw materials (such as raw materials for the production of benzene, toluene, xylene, ethylene, etc.). Therefore, as the quality of crude oil deteriorates year by year and the market demand for high-quality petroleum products, this promotes the rapid developmen...

AI Technical Summary

Problems solved by technology

The catalyst has low activity, the selectivity of heavy naphtha is not very high, and the hydrogen consumption is also large

[0008] The hydrocracking catalysts in the above-mentioned patents use modified Y molecular sieves with different properties. This is because the modification methods are different, thus resulting in differences in catalyst performance.