Three-dimensional ordered macroporous alumina and preparation method thereof

A macroporous alumina, three-dimensional ordered technology, applied in the direction of alumina/aluminum hydroxide, etc., can solve the problems of low adhesion, collapse of macroporous structure, low mechanical strength, etc., to improve adhesion and good hydrophilicity. Effect
CN102838142AActive Publication Date: 2012-12-26CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-12-26

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Abstract

The present invention discloses three-dimensional ordered macroporous alumina and a preparation method thereof. The three-dimensional ordered macroporous alumina has a macropore diameter of 50-1000 nm, a particle size of 1-50 mm, and a mechanical strength of 80-280 g/mm. The method comprises the following steps: adding a saccharide compound and concentrated sulfuric acid to a monodisperse polymer microsphere emulsion to obtain a modified polymer microsphere colloid crystal template; filling an alumina sol; and then carrying out aging and calcination to obtain the three-dimensional ordered macroporous alumina. With the method of the present invention, an adhesion amount of the alumina precursor can be substantially improved, a mechanical strength of the material is enhanced, and the macroporous material is not easily broken into fine powder when high temperature calcination is performed to remove the template so as to maintain high integrity.
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Description

technical field

[0001] The invention relates to a three-dimensional ordered macroporous alumina and a preparation method thereof, belonging to the field of inorganic material preparation. Background technique

[0002] As crude oil resources become increasingly heavy and inferior, the petroleum processing industry will face more and more processing problems of macromolecular hydrocarbons. Currently, porous alumina is a widely used catalytic support material in the field of hydrogenation catalysis in petrochemical industry. It is well known that the pore structure of the carrier directly affects the activity of the catalyst and the mass transfer efficiency of the heavy oil feedstock in the catalytic system, which in turn determines the performance of the catalyst. Therefore, it is an important subject to prepare a new type of alumina support material with large pores suitable for processing macromolecular hydrocarbons that is conducive to the process of macromolecular diffusi...

Claims

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