A worm-like mesoporous al 2 o 3 / Molecular sieve composite material and preparation method thereof

A technology for composite materials and molecular sieves, applied in the field of worm-like mesoporous Al2O3/molecular sieve composite materials and its preparation, can solve the problems of low diffusion of microporous molecular sieves, increased synthesis costs, complicated preparation methods, etc. The method is simple, feasible, Ease of regulation and broad application prospects
CN107297220BActive Publication Date: 2020-08-04WUHAN UNIV OF TECH
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2020-08-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention provides a worm-like mesoporous Al 2 O 3 / Preparation method of molecular sieve composite materials, the entire invention is roughly divided into two steps: 1) preparation of nanoscale molecular sieves; 2) in-situ composite of molecular sieves and mesoporous alumina materials. By adjusting the hydrolysis of the aluminum source, the invention enables the aluminum source to slowly hydrolyze to form a worm-like mesoporous alumina material, which is well compounded with the molecular sieve to form a material with both mesopores (provided by alumina) and micropores (provided by molecular sieve). Structural hierarchical pore system. The preparation method involved in the present invention is simple and feasible, the conditions are easy to control, and it is easy to produce in large quantities. It is expected to be applied in industrial fields such as molecular adsorption and catalysis.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of inorganic synthesis, in particular to a worm-like mesoporous Al 2 o 3 Molecular sieve composite material and preparation method thereof. Background technique

[0002] Zeolite molecular sieves belong to a class of solid catalysts with crystalline state. They are widely used in catalysis, adsorption separation, ion exchange and other fields. They are an indispensable class of solid catalyst materials in the fields of petrochemical and fine chemistry. At the same time, since the material usually has only a single micropore channel, when it is used as a catalyst, it is easy to cause problems such as too long reaction transmission path, restricted transport of reactant molecules or product molecules, etc., resulting in low conversion rate and carbon deposition on the catalyst. Cause a series of phenomena such as catalyst deactivation and poisoning.

[0003] In order to solve the above problems, it is a simp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More