Production of liquefied gas cracking catalyst with gasoline olefin content decreasement

A technology for cracking catalyst and olefin content, which is applied in the field of preparation of hydrocarbon cracking catalyst, can solve the problems of not being able to reduce the olefin content of gasoline and produce more liquefied gas at the same time, and achieve the effect of reducing the content of olefin and increasing the octane number of gasoline

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

[0010] None of the cracking catalysts prepared by the above prior art can simultaneously reduce the olefin content of gasoline and produce more liquefied gas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of the catalyst provided by the present invention includes:

[0023] (1) Preparation of clay slurry

[0024] The clay, deionized water and phosphorus-containing compound are mixed uniformly to prepare a clay slurry. The amount of phosphorus-containing compound added is 0.1-5.0% by weight, preferably 0.3-3.5% by weight based on the dry basis weight of the catalyst. 2 O 5 ;

[0025] (2) Preparation of molecular sieve slurry

[0026] The molecular sieve, deionized water, phosphorus-containing compound solution, and rare earth compound are mixed uniformly to prepare a molecular sieve slurry. The amount of phosphorus-containing compound added is 0.1-3.0% by weight, preferably 0.3-2.5% by weight based on the dry basis weight of the catalyst. 2 O 5 The amount of rare earth compound added is 0.1-5.0% by weight, preferably 0.3-4.8% by weight based on the dry weight of the catalyst. 2 O 3 ;

[0027] (3) Preparation of binder slurry

[0028] Mix the binder, deio...

Embodiment 1

[0051] Add 1.3 kg of kaolin (dry basis weight, produced by China Kaolin Company) into 0.3 kg of 24% by weight (based on the amount of ammonium dihydrogen phosphate) of ammonium dihydrogen phosphate (chemically pure, produced by Beijing Chemical Plant) solution, and stir for 1.5 hours. A kaolin slurry is formed.

[0052] Take 1.1 kg of pseudo-boehmite (calculated as alumina, produced by Shandong Aluminum Factory), 0.8 kg of aluminum sol (calculated as alumina, produced by Qilu Catalyst Factory), 5.6 kg of deionized water and 282 ml of 36 wt% hydrochloric acid ( Chemically pure, produced by Beijing Chemical Plant) mixed and stirred for 1.5 hours, and the binder slurry can be obtained without heating and aging.

[0053] Take 1.3 kg of REY molecular sieve (RE 2 O 3 The content is 18.5% by weight, Na 2 The content of O is 1.6% by weight, the ratio of silicon to aluminum is 5.4, produced by Qilu Catalyst Factory), 0.4 kg of ZRP-1 molecular sieve (a kind of zeolite with MFI structure con...

Embodiment 2

[0057] 1.3 kg of kaolin was added to a solution of 0.9 kg of deionized water and 139 g of diammonium hydrogen phosphate (chemically pure, produced by Beijing Chemical Plant), and stirred for 1.5 hours to obtain a binder slurry.

[0058] Take 1.1 kilograms of pseudo-boehmite, 0.8 kilograms of aluminum sol, 3.6 kilograms of deionized water and 94 milliliters of 36 wt% hydrochloric acid and mix and stir for 1.5 hours to obtain a binder slurry.

[0059] Take 1.3 kg of MOY molecular sieve prepared according to CN1325940A (a Y-type zeolite containing phosphorus and rare earth, RE 2 O 3 Content 8.0% by weight, Na 2 O content is 1.3% by weight, phosphorus content is 1.1% by weight, silicon to aluminum ratio is 5.6, produced by Qilu Catalyst Factory), 0.4 kg of ZSP-1 molecular sieve (a type of MFI zeolite containing phosphorus and iron, Fe 2 O 3 Content 2.5% by weight, P 2 O 5 4.0% by weight, Na 2 The O content is 0.1% by weight, the silicon-to-aluminum ratio is 25, produced by Qilu Cataly...

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Abstract

It is a sort of cracking catalyst for reducing alkene content in gasoline and increasing liquid gas yield and the preparation method. It includes the following steps: clay, de-ionized water and phosphorus-containing compound were mixed up to form clay serosity ; molecular screen, de-ionized water and phosphorus-containing compound and rare earth compound were mixed up to form molecular screen serosity; agglomerant, de-ionized water and any mineral acid were mixed up to form agglomerant serosity. The above three agglomerants were mixed up and dried. Cracking catalyst made by this method has high liquid gas yield and it maintains high octane level in gasoline.

Description

Technical field [0001] The invention belongs to a preparation method of a hydrocarbon cracking catalyst. technical background [0002] With the increasingly stringent environmental protection standards, the requirement to reduce the olefin content in gasoline is getting lower and lower. It is a quick and feasible way to develop a catalyst that reduces the olefin content in the catalytic cracking (FCC) gasoline fraction. [0003] With the development of the petrochemical industry, the FCC process is not only an important means to provide light oil, but also a processing method to provide basic organic chemical raw materials such as olefins. For example, propylene is an important raw material for the production of phenol, acetone and acrylic acid. Therefore, It is necessary to develop a catalyst with a higher yield of liquefied gas, especially a higher content of propylene in the liquefied gas. [0004] Improve the yield of liquefied gas in cracked products, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/02
Inventor 邱中红龙军田辉平陆友宝张久顺朱玉霞李才英张万虹王振波
Owner CHINA PETROLEUM & CHEM CORP
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