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Catalytic cracking catalyst

A catalytic cracking and catalyst technology, used in catalytic cracking, cracking, petroleum industry and other directions, can solve the problems of heavy oil cracking performance, poor light oil yield and poor coking resistance, and achieve the effect of low coke and high heavy oil conversion capacity

Active Publication Date: 2009-12-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a new catalytic cracking catalyst with better performance in view of the shortcomings of existing alumina-containing catalytic cracking catalysts, which have poor heavy oil cracking performance, light oil yield and coke resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Description is suitable for preparing the hydrated alumina precursor of the additive-containing alumina used in the catalyst provided by the present invention and the preparation thereof.

[0031] (1), 1020 grams of pseudo-boehmite (produced by Shandong Aluminum Factory, alumina content is 60%), 3600 grams of deionized water and 61 grams (by weight, the weight ratio of acid to alumina is 0.1) hydrochloric acid (Concentration 36%, produced by Beijing Chemical Plant, analytical grade) Mix under stirring;

[0032] (2). Aging the mixed slurry obtained in step (1) at 70°C for 2 hours;

[0033] (3). Combine the product obtained in step (2) with 110ml phosphoric acid (produced by Beijing Chemical Plant, 85% concentration, analytically pure) and 252 grams of aqueous solution containing magnesium chloride hexahydrate (produced by Beijing Shuanghuan Reagent Factory, analytically pure) (including hexahydrate) Magnesium chloride (132 g) was mixed to obtain phosphorus and magnesium-conta...

Embodiment 2

[0035] Description is suitable for preparing the hydrated alumina precursor of the additive-containing alumina used in the catalyst provided by the present invention and the preparation thereof.

[0036] (1) Combine 1,020 grams of pseudo-boehmite (produced by Shanxi Aluminum Plant, with an alumina content of 60%), 3600 grams of deionized water and 61 grams (by weight, and calculate the weight ratio of acid to alumina as 0.1 ) Hydrochloric acid (concentration 36%, produced by Beijing Chemical Plant, analytically pure) mixed under stirring;

[0037] (2). Aging the mixed slurry obtained in step (1) at 50°C for 4 hours;

[0038] (3) Mix the product obtained in step (2) with 120 grams of a mixed solution of boron trioxide (produced by Beijing Chemical Reagent Company, analytically pure) and water (including 56 grams of boron trioxide);

[0039] (4) Dry the product obtained in step (3) in an oven at 120°C for 6 hours to obtain manganese-containing hydrated alumina C-2 with pseudo-boehmi...

Embodiment 3

[0041] Description is suitable for preparing the hydrated alumina precursor of the additive-containing alumina used in the catalyst provided by the present invention and the preparation thereof.

[0042] (1), 1020 grams of pseudo-boehmite (produced by Shandong Aluminum Factory, alumina content is 60%), 3600 grams of deionized water and 121 grams (by weight, the weight ratio of acid to alumina is 0.2) hydrochloric acid (Concentration 36%, produced by Beijing Chemical Plant, analytical grade) Mix under stirring;

[0043] (2) Aging the mixed slurry obtained in step (1) at 80°C for 1 hour;

[0044] (3). Combine the product obtained in step (2) with 252 grams of aqueous solution containing magnesium chloride hexahydrate (produced by Beijing Shuanghuan Reagent Factory, analytically pure) (of which 132 grams of magnesium chloride hexahydrate) and silica sol (produced by Beijing Chemical Plant, silicon oxide content 16%, 226 grams were mixed to obtain a hydrated alumina C-3 with a pseudo-...

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PUM

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Abstract

A catalytic cracking catalyst, containing an effective amount of molecular sieves and a kind of alumina containing additives, based on the alumina containing additives, the alumina containing additives contains 60-99.5% by weight of alumina, 0.5- 40% by weight of the additive, the catalyst is prepared by a process comprising the steps of: (1) mixing pseudo-boehmite with sufficient water and an acid sufficient to slurry it, wherein the amount of acid is such that the acid and The weight ratio of alumina in pseudo-boehmite is 0.01-0.5; (2) aging the mixed slurry in step (1) at room temperature-90°C for 0-24 hours; (3) aging the mixed slurry in step (2) The product is mixed with additives; (4) the product of step (3) is mixed with molecular sieves, dried and calcined. The catalytic cracking catalyst provided by the invention has higher heavy oil conversion performance.

Description

Technical field [0001] The invention relates to a catalytic cracking catalyst. Background technique [0002] Catalytic cracking is the most widely used and effective method in the existing petroleum processing technology. Among them, by adjusting the composition of the catalytic cracking catalyst, the performance of the catalytic cracking catalyst can be changed, thereby improving the distribution, composition and product properties of the cracked products, and affecting the yield of dry gas and catalyst coke. [0003] US 4283309 discloses a hydrocarbon conversion catalyst which contains (1) a crystalline aluminosilicate zeolite, (2) an inorganic oxide gum with catalytic activity, and (3) a surface area greater than 200m 2 / g, the pore volume of the 90-200 angstrom hole is at least 0.2cm 2 / g of porous inorganic oxide, the pore volume of the catalyst is at least 0.4 cm with a pore diameter of 90-200 angstroms 2 / g. The porous inorganic oxide is alumina. [0004] The prior art sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/04
Inventor 龙军田辉平张蔚琳达志坚张剑秋陈振宇许明德王振波张万虹
Owner CHINA PETROLEUM & CHEM CORP
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