A kind of hydrocracking catalyst and preparation method thereof

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as affecting the framework structure of molecular sieves, low catalytic activity of catalysts, and reducing the crystallinity of molecular sieves. and acid density distribution, high catalytic activity and isomerization ability, and the effect of improving product selectivity
CN104667970BActive Publication Date: 2017-07-14CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2017-07-14

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Abstract

The invention discloses a hydrocracking catalyst and a preparation method thereof. The catalyst includes a hydrogenation active metal component and a carrier containing β molecular sieve, Y-type molecular sieve and alumina, wherein the properties of the β molecular sieve used are as follows: SiO 2 / Al 2 o 3 The molar ratio is 30~150, the non-framework aluminum accounts for less than 2% of the total aluminum, and the silicon atoms coordinated by the Si(0Al) structure account for more than 95% of the silicon atoms in the skeleton structure. The preparation method includes: β molecular sieve, Y type molecular sieve and aluminum oxide are mixed and kneaded to form a carrier, and the hydrogenation active metal component is loaded by a conventional method. The catalyst of the invention uses beta molecular sieve and Y-type molecular sieve together as the cracking component, and the prepared catalyst has the characteristics of high activity, high-quality middle distillate oil production, and high-quality hydrogenation tail oil.
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Description

technical field

[0001] The invention relates to a hydrocracking catalyst and a preparation method thereof, in particular to a hydrocracking catalyst which adopts β and Y-type molecular sieve composite components as the main cracking components, and is suitable for preparing high-quality middle distillates with high yields and a preparation method thereof. Background technique

[0002] In recent years, the demand for high-quality middle distillate products in oil markets around the world has been growing continuously. With the rapid development of economy, this contradiction between supply and demand has become more prominent. With its unique advantages, hydrocracking technology has become the best means for deep processing of heavy oil to produce high-quality clean middle distillate.

[0003] At present, the activity of medium-oil hydrocracking catalysts in various countries in the world is not very high, and the freezing point of the obtained diesel oil is also high, which ...

Claims

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