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Production of cracking catalyst for qualified gasoline and propylene

A cracking catalyst, high-quality technology, applied in the field of preparation of hydrocarbon cracking catalysts, can solve the problem of not being able to reduce the olefin content of gasoline at the same time

Active Publication Date: 2006-11-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] None of the cracking catalysts prepared by the above prior art can simultaneously reduce the content of olefins in gasoline, increase the content of isoparaffins in gasoline, and produce more propylene and isobutane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation method of catalyst provided by the invention comprises:

[0024] (1), preparation of clay slurry

[0025] Mix the clay, deionized water and phosphorus-containing compound uniformly to prepare a clay slurry, and the addition of the phosphorus-containing compound is 0.05-2.5% by weight based on the dry weight of the catalyst, preferably 0.2-2.5% by weight P 2 o 5 ;

[0026] (2), preparation of molecular sieve slurry

[0027] Mix molecular sieves, deionized water, and phosphorus-containing compounds uniformly to prepare molecular sieve slurry, control the pH value to 4-7, and add the phosphorus-containing compounds in an amount of 0.05-1.5% by weight based on the dry weight of the catalyst, preferably 0.2-1.5% by weight P 2 o 5 ;

[0028] (3), preparation of binder slurry

[0029] uniformly mixing the binder, deionized water and optional inorganic acid to prepare a binder slurry;

[0030] (4), slurry, mixing of rare earth compounds

[0031] After m...

Embodiment 1

[0053] Add 683 grams of kaolin (dry basis weight, produced by China Kaolin Company) to a solution formed by 590 grams of deionized water and 79 grams of ammonium phosphate (chemically pure, produced by Beijing Chemical Plant), and stir for 1.5 hours to obtain a kaolin slurry.

[0054] Get 225 grams of ZSP-1 zeolite (a kind of zeolite with MFI structure containing phosphorus and iron, Na 2 O 0.1 wt%, SiAl ratio 25, Fe 2 o 3 Content 2.5% by weight, P 2 o 5 4.0% by weight, produced by Qilu Catalyst Factory), REY zeolite 225 grams (RE 2 o 3 Content 18.5% by weight, Na 2 O content is 1.6 weight %, silicon-aluminum ratio is 5.4, and Qilu Catalyst Factory produces) and 75 grams of DASY 0.0 Zeolite (a USY zeolite, Na 2 The O content is 0.98% by weight, the silicon-aluminum ratio is 6.2, produced by Qilu Catalyst Factory, the same below) is added to 600 grams of deionized water, then 42 grams of diammonium hydrogen phosphate (chemically pure, produced by Beijing Chemical Plant) ...

Embodiment 2

[0070] Add 1.7 kg of kaolin to a solution formed by 1.7 kg of deionized water and 45 g of phosphorous acid (chemically pure, produced by Beijing Chemical Plant), and stir for 1.5 hours to obtain a kaolin slurry.

[0071] Take 1.0 kg of pseudo-boehmite (calculated as alumina, produced by Shandong Aluminum Plant), 0.5 kg of aluminum sol, 3.4 kg of deionized water and 85 ml of 36% by weight hydrochloric acid and mix and stir for 1.0 hour to obtain a binder slurry.

[0072] Take 0.9 kg of REHY zeolite (RE 2 o 3 Content 3.6 wt%, Na 2 O content is 4.6 weight %, silicon-aluminum ratio 5.6, Qilu Catalyst Factory production), 0.3 kilograms of ZRP-1 zeolite, 0.4 kilograms of ZSP-2 zeolite (a kind of zeolite with MFI structure containing phosphorus, iron, Na 2 O 0.1 wt%, SiAl ratio 50, Fe 2 o 3 2.5% by weight, P 2 o 5 4.0% by weight, produced by Qilu Catalyst Factory), 0.2 kilograms of DASY 2.0 Zeolite (a REUSY zeolite, RE 2 o 3 Content 1.5 wt%, Na 2 The O content is 1.2% by we...

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Abstract

It is a preparation method of cracking catalyst which can product high quality petrol and more propene. Making clay, de-ionized water and phosphorated compound well blended to get clay slurry, making molecular screen, de-ionized water and phosphorated compound well blended to get molecular screen slurry, making agglomerant, de-ionized water and optional inorganic acid to get agglomerant slurry. Uniform mixing three kinds of slurry mentioned before with rare-earth compound, and then drying the mixture. Using this kind of cracking catalyst, we can produce the petrol which contains a low level of olefinic hydrocarbon, a high level of isoparaffin, and in the same time produce more propene and isobutene.

Description

technical field [0001] The invention belongs to a preparation method of a hydrocarbon cracking catalyst. technical background [0002] In recent years, with the strengthening of environmental protection, reducing the olefin content in gasoline has been put on the agenda. In the newly formulated gasoline specification, the olefin content is required to be no more than 35%. In July 2000, it was approved in Beijing, Shanghai, Guangzhou and other major cities began to implement. In order to meet higher environmental protection requirements and prepare for the 2008 Olympic Games, gasoline quality upgrades in Beijing, Shanghai and other big cities are one step ahead of schedule, requiring the implementation of Euro III emission standards in 2005, and more than 80% of gasoline blending components in my country are catalytic Cracking (FCC) gasoline, because the conditions for adjusting the blending composition of gasoline are not available at present, so i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/05
Inventor 邱中红陆友宝龙军张久顺田辉平达志坚朱玉霞许友好张万虹王振波
Owner CHINA PETROLEUM & CHEM CORP
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