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Cracking catalyst containing laminar clay and its preparation method

A technology for cracking catalyst and layered clay, which is applied in cracking, catalytic cracking, petroleum industry and other directions, can solve the problems of complex method, insufficient ability to crack heavy oil, insufficient yield of light oil, etc., and achieves a simple and easy preparation method. Realize the effect of industrialization and increase the cost of preparation

Inactive Publication Date: 2003-07-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach is also too complex
[0014] At the same time, the prior art catalysts all have a common shortcoming, that is, the ability to crack heavy oil is still not strong enough or the yield of light oil is not high enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] According to the preparation method of the catalyst provided by the present invention, kaolin clay can also be added in the slurry, and the kaolin clay can be added at any time before the slurry is dried and formed in step (3), preferably in (2) Add before the step, that is, before the slurry is warmed up and aged. The amount of the kaolin clay is added to keep the solid content of the slurry at 10-40% by weight, and the finally obtained catalyst contains 0-70% by weight, preferably 0-50% by weight of the kaolin family clay.

[0031] The kaolin group clay is selected from kaolin, halloysite and one or more of kaolin and halloysite modified by existing methods, preferably kaolin and / or halloysite.

[0032] The preparation method of the catalyst provided by the present invention may also include adding zeolite to the slurry, and the zeolite may be added at any time before the slurry is dried and formed in step (3), preferably after step (2), that is, the slurry After hea...

example 1

[0049] This example illustrates the catalyst provided by the invention and its preparation method.

[0050] With 19.3 kilograms of deionized water, 4.2 kilograms of aluminum sol (produced by Qilu Petrochemical Company Catalyst Factory, Al 2 o 3content is 21.2% by weight), 8.0 kg of rare earth type rectorite (solid content is 62.8% by weight, rare earth oxide content is 2.07% by weight, wherein, lanthanum oxide accounts for 53.2% by weight of rare earth oxide, cerium oxide accounts for 53.2% by weight of rare earth oxide 13.0% by weight of the rare earth oxide, other rare earth oxides account for 33.8% by weight of the rare earth oxide, and its preparation method is described below), 1.5 kg of kaolin (solid content is 72.7% by weight, produced by Suzhou Kaolin Company), 6.1 kg of pseudo-boehmite (the solid content is 33% by weight, produced by Shandong Aluminum Plant) mixing and beating, stirring for 0.5 hour, the slurry was warmed up to 65 ° C, and aged at this temperature fo...

example 2

[0077] This example illustrates the catalyst provided by the invention and its preparation method.

[0078] Prepare catalyst by the method for example 1, difference is not adding kaolin, the consumption of deionized water is 19.3 kilograms, the consumption of aluminum sol is 3.8 kilograms, the consumption of rare earth type rectorite is 7.3 kilograms, the consumption of pseudo-boehmite It is 7.5 kilograms, with rare earth ultra-stable Y zeolite (unit cell constant is 24.53 angstroms, solid content is 94.35 weight percent, is based on dry base zeolite, and rare earth oxide content is 2.1 weight percent, and wherein lanthanum oxide content is rare earth oxide 53.2% by weight, cerium oxide content is 13.0% by weight of rare earth oxide, other rare earth oxide content is 33.8% by weight of rare earth oxide, Qilu Petrochemical Company Catalyst Factory produces) instead of ultra-stable Y zeolite, the consumption of rare earth ultra-stable Y zeolite Be 2.12 kilograms, get catalyst C ...

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PUM

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Abstract

The present invention relates to a cracking catalyst containing laminar clay. It is prepared by adopting the following steps: mixing the expandable clay modifying component, pseudo-thin hydrargillite and water, pulping for 0.1-10 hr. to obtaining a slurry liquor, ageing slurry liquor for 0.1-10 hr. at 50-85 deg.C, drying, forming, washing with water, ageing, finally drying and roasting so as to obtain said catalyst. The described modifying component can be selected from one or several kinds of hydroxyl polymers of silicon, aluminium, zirconium or titanium or one or several kinds of one or several substances containing the described hydroxyl polymer. Said catalyst has higher heavy oil conversion capacity.

Description

field of invention [0001] The present invention relates to a cracking catalyst and its preparation method, more specifically to a cracking catalyst containing layered clay and its preparation method. Background technique [0002] In recent years, the tendency of crude oil to become heavier has become more and more serious. Because in crude oil, fractions with a boiling point above 400°C are difficult to enter the pores of zeolite, in order to improve economic benefits, the cracking capacity of existing zeolite-containing cracking catalysts for heavy oil can no longer meet the requirements. Adding layered clay components into the cracking catalyst can improve the heavy oil cracking ability of the cracking catalyst. [0003] CN1031029A discloses a layered clay molecular sieve catalytic cracking catalyst, which is composed of an active component, a support component and a binder component. Wherein, the active component is accounted for catalyst weight 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/02
Inventor 虞至庆达志坚陈振宇李才英闵恩泽
Owner CHINA PETROLEUM & CHEM CORP
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