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Macropore catalytic cracking catalyst synthesized by granular formwork method

A catalytic cracking and catalyst technology, which is applied in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of limited practical range and achieve the effect of improving performance

Inactive Publication Date: 2009-03-18
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, the actual scope of adjusting the pore structure parameters of catalysts prepared by the same composition and the same method is quite limited

Method used

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  • Macropore catalytic cracking catalyst synthesized by granular formwork method
  • Macropore catalytic cracking catalyst synthesized by granular formwork method
  • Macropore catalytic cracking catalyst synthesized by granular formwork method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, the synthesis of nano / submicron polystyrene colloidal particle template

[0026] Get 0.2605 grams of sodium styrene sulfonate, 0.431 grams of sodium bicarbonate, 125 milliliters of styrene and 875 milliliters of water into the reactor with stirring, and stir while heating to make the temperature of the reactor rise to about 75 ° C. After the temperature of the reactant stabilized, 0.4985 g of potassium peroxodisulfate was added to initiate the polymerization reaction. It can be seen that the reaction solution first changes from colorless to protein-colored, and finally turns milky white. The polymerization reaction was carried out at 75° C. under stirring for 8 hours to obtain a monodisperse polystyrene emulsion. The particle diameter of the polystyrene colloidal particles measured by a Zetasizer Nano-ZS dynamic light scattering particle size analyzer of Malvern Instrument Co., Ltd. is 345 nm. Its particle diameter measured by transmission electron micro...

Embodiment 2

[0030] Embodiment two, the synthesis two of nano / submicron polystyrene colloidal template

[0031] Get 2.851 grams of sodium lauryl sulfate, 1.63 grams of n-amyl alcohol, 100 milliliters of styrene and 840 milliliters of water into the reactor with stirring; the temperature of the reactor is raised to about 83° C. while heating. After the temperature of the reactant stabilized, 0.80 g of potassium peroxodisulfate was added to initiate the reaction. The reaction solution slowly changed from colorless to protein-colored. The reaction was carried out at 83° C. under stirring for 3 hours to obtain a monodisperse polystyrene emulsion. The average particle diameter of the polystyrene colloidal particles measured by a Zetasizer Nano-ZS dynamic light scattering particle size analyzer of Malvern Instrument Co., Ltd. is 63.8 nanometers.

[0032] By changing the amount of reagents, polystyrene template colloids with different particle sizes can be synthesized. Some experimental result...

Embodiment 3

[0035] Embodiment three, the synthesis of nanometer polystyrene / polymethyl methacrylate composite particle

[0036] Add 7 grams of sodium lauryl sulfate, 0.8 grams of ammonium persulfate and 840 milliliters of water into the reactor, stir and heat up to 80 degrees Celsius. Add 40 ml of methyl methacrylate and finally 90 ml of styrene dropwise. A protein color was obtained after 90 minutes of reaction. The average particle diameter of the polystyrene / polymethyl methacrylate composite particles measured by a Zetasizer Nano-ZS dynamic light scattering particle size analyzer of Malvern Instrument Co., Ltd. is 24.2 nm.

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PUM

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Abstract

This invention provides using particle template to synthesize big-hole catalytic cracking catalyst method. It includes the template particles, catalyst groundmass and molecular sieve mixture, ageing, molding and drying. Then the process of particle molding is eliminated, the volume ratio more than 5mm in catalyst is in 5-74% ratio, and can be adjust at will. The hole-diameter can be random selected between 5-2000mm, its cracking activity is high, selection is good, thus, it is specially used as heavy weight oil catalytic cracking catalyst.

Description

technical field [0001] The invention relates to a macroporous catalytic cracking catalyst and a synthesis method thereof. The catalyst is suitable for catalytic cracking processing of petroleum heavy oil fractions. Specifically, it relates to a kind of catalytic cracking catalyst with large pores synthesized by particle template method. Background technique [0002] It is the eternal goal of the oil refining industry to make full use of petroleum resources to maximize its lightness, that is, to obtain light transportation fuel oil. Catalytic cracking is the main means of lightening heavy oil, but the heavy weight of catalytic cracking feedstock and the emergence of short-time contact technology between catalyst and reactant have made mass transfer speed the key to realize heavy oil catalytic cracking. Constraints. [0003] The catalytic cracking catalyst prepared at present is made up of substrate and molecular sieve, and wherein molecular sieve particle diameter is about ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J37/00B01J29/00C10G11/02
Inventor 陈胜利董鹏祁彦平徐克琪
Owner CHINA UNIV OF PETROLEUM (BEIJING)