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Method for cracking hydrocarbon oil

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

Active Publication Date: 2011-04-06
RES INST OF PETROLEUM PROCESSING SINOPEC
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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 hydrocarbon oil cracking method for the shortcomings of existing hydrocarbon oil cracking methods, such as poor heavy oil cracking performance, light oil yield and poor coke resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Alumina hydrates, precursors of additive-containing alumina suitable for use in the preparation of catalysts for use in the present invention, and their preparation are described.

[0033] (1), with 1020 grams of pseudo-boehmite (produced by Shandong Aluminum Plant, the 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, analytically pure) mixed under stirring;

[0034] (2), aging the mixed slurry obtained in step (1) at 70° C. for 2 hours;

[0035] (3), the product that step (2) obtains and 110ml phosphoric acid (produced by Beijing Chemical Plant, concentration 85%, analytically pure) and containing magnesium chloride hexahydrate (produced by Beijing Shuanghuan Reagent Factory, analytically pure) aqueous solution 252 grams (wherein hexahydrate Magnesium chloride 132 grams) mixes, obtains the hydrated alumina C-1 gram that c...

Embodiment 2

[0037] Alumina hydrates, precursors of additive-containing alumina suitable for use in the preparation of catalysts for use in the present invention, and their preparation are described.

[0038] (1), 1020 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 calculating the weight ratio of acid to alumina to be 0.1 ) hydrochloric acid (concentration 36%, produced by Beijing Chemical Plant, analytically pure) mixed under stirring;

[0039] (2), aging the mixed slurry obtained in step (1) at 50° C. for 4 hours;

[0040] (3), the product obtained in step (2) is mixed with diboron trioxide (produced by Beijing Chemical Reagent Company, analytically pure) and water mixed solution 120 grams (wherein 56 grams of diboron dioxide),

[0041] (4) Dry the product obtained in step (3) in an oven at 120°C for 6 hours to obtain manganese-containing alumina hydrate C-2 with a pseudo-boehmite s...

Embodiment 3

[0043] Alumina hydrates, precursors of additive-containing alumina suitable for use in the preparation of catalysts for use in the present invention, and their preparation are described.

[0044] (1), with 1020 grams of pseudo-boehmite (produced by Shandong Aluminum Plant, the 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, analytically pure) mixed under stirring;

[0045] (2), aging the mixed slurry obtained in step (1) at 80° C. for 1 hour;

[0046] (3), the product that step (2) obtains is mixed with magnesium chloride hexahydrate (produced by Beijing Shuanghuan Reagent Factory, analytically pure) aqueous solution 252 grams (wherein 132 grams of magnesium chloride hexahydrate) and silica sol (produced by Beijing Chemical Plant, silicon oxide content 16%,) 226 grams of mixing to obtain silicon and magnesium-containing alumina...

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Abstract

This invention discloses a catalytic cracking method for cracking hydrocarbon oil in the presence of a cracking catalyst, which comprises an appropriate amount of molecular sieve, and aluminum oxide containing additive. The cracking catalyst is prepared by: (1) mixing pseudoboehmite, water and acid by stirring to obtain mixed slurry; (2) aging the mixed slurry at room temperature to 90 de.C for 0-24 h; (3) mixing the product of step 2 with the additive; (4) mixing the product of step 3 with the molecular sieve, drying and torrefying. The catalytic cracking method has better heavy oil reforming performance.

Description

technical field [0001] The invention relates to a hydrocarbon oil cracking method. 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 product, and affecting the yield of dry gas and catalyst coke. [0003] US 4283309 discloses a hydrocarbon conversion catalyst comprising (1) a crystalline aluminosilicate zeolite, (2) a catalytically active inorganic oxide colloid, (3) a 2 / g, pore size 90-200 angstroms, the pore volume is at least 0.2cm 2 / g of porous inorganic oxides, the catalyst has a pore volume of 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 shows that although γ-Al 2 o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/05
Inventor 达志坚田辉平张蔚琳张剑秋陈振宇许明德龙军张久顺
Owner RES INST OF PETROLEUM PROCESSING SINOPEC
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