Heavy oil cracking catalyst and preparation method thereof

A technology of heavy oil cracking and catalyst, applied in the field of heavy oil cracking catalyst and its preparation, which can solve the problems of poor metal resistance and low percentage of heavy oil cracking catalyst, and achieve the effect of excellent metal resistance

Active Publication Date: 2010-09-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The metal resistance of the above heavy oil cracking catalysts is not good, and the percentage of the total weight of liquefied gas, gasoline and diesel in the product is not high

Method used

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  • Heavy oil cracking catalyst and preparation method thereof
  • Heavy oil cracking catalyst and preparation method thereof

Examples

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preparation example Construction

[0024] The invention provides a kind of preparation method of catalyst, this method comprises:

[0025] Mix retort earth, additives, water and inorganic acid for beating, and keep it for more than 30 minutes, preferably 30-120 minutes, to prepare the first slurry, wherein the amount of water is such that the solid content of the obtained first slurry is 10- 60% by weight, and the consumption of retort earth and auxiliary agent makes rector earth: the weight ratio of auxiliary agent in terms of elements is 80-99.9: 0.1-20, and described auxiliary agent is the compound of Co, the compound of Zn and the compound of Cu One or more of the compounds, or a mixture of one or more of the compounds of Co, Zn and Cu with La compounds and / or Ti compounds;

[0026] mixing and beating the first slurry with zeolite, heat-resistant inorganic oxide and / or its precursors to prepare a second slurry, or drying the first slurry, and mixing the dried product with zeolite, water, and heat-resistant ...

Embodiment 1

[0039] In 16.7 kilograms of decationized water, add 11.3 kilograms of retort earth under stirring conditions, after stirring for 15 minutes, add 179 grams of chemically pure hydrochloric acid for acidification, continue stirring for 30 minutes, add 851 grams of cobalt nitrate (Co(NO 3 ) 3 ·6H 2 O, produced by Beijing Chemical Reagent Company), after stirring for 60 minutes, a slurry with a solid content of 35% by weight was obtained, which was T1.

Embodiment 2

[0041] In 12.7 kg of decationized water, add 912 g of lanthanum chloride (same as above), 100 g of titanium dioxide (produced by Beijing Chemical Reagent Company) and 314 g of copper sulfate (CuSO 4 ·5H 2 (O Beijing Chemical Reagent No. 3 Factory production), after stirring for 10 minutes, add 10.9 kilograms of retort earth, after stirring for 30 minutes, add 48 grams of chemically pure hydrochloric acid to carry out acidification treatment, after stirring for 60 minutes, the obtained solid content is 40% by weight The slurry is T2.

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Abstract

The invention relates to a catalyst and a preparation method thereof, in particular to a heavy oil cracking catalyst and a preparation method thereof. The catalyst contains zeolite, heat-resistant inorganic oxide, rectorite with auxiliary agent, and clay or no clay, wherein in the rectorite with the auxiliary agent, the content of the rectorite is 80-99.9 wt% by taking the total weight of the rectorite with the auxiliary as the reference, the content of the auxiliary agent is 0.1-20 wt% by elements, and the auxiliary agent contains one or many of the Co compound, the Zn compound and the Cu compound, or the mixture of one or many of the Co compound, the Zn compound and the Cu compound and the La compound and/or the Ti compound. The catalyst has excellent anti-metal performance when being used in heavy oil cracking reaction, and can increase the weight ratio of liquefied gas, gasoline and diesel fuel in the product.

Description

technical field [0001] The invention relates to a catalyst and a preparation method thereof, in particular to a heavy oil cracking catalyst and a preparation method thereof. Background technique [0002] The increase in the weight of raw oil and the refinery's pursuit of economic benefits require the improvement of the cracking catalyst's ability to crack heavy oil. The pore diameter of the Y-type zeolite in the cracking catalyst is 0.75nm. Small and medium molecular hydrocarbons in the raw oil can enter the inner pores of the zeolite for cracking reactions, while large molecular hydrocarbons are difficult to enter the inner pores of the zeolite. In order to improve the cracking ability of heavy fractions, the support of the cracking catalyst usually has large pores and certain acidity that heavy oil macromolecules can enter. The macromolecules in heavy oil are first cracked into medium-sized molecules in the large pores of the support, and then medium The molecules then en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/14B01J29/76B01J21/02B01J21/06B01J21/16C10G11/05
Inventor 许明德田辉平于善青朱玉霞周灵萍
Owner CHINA PETROLEUM & CHEM CORP
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