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Molecular sieve cellular material and preparation method thereof

A technology of honeycomb material and molecular sieve, applied in the field of molecular sieve honeycomb material and its preparation, can solve the problems of weak bonding on the surface of the carrier, thin molecular sieve dip coating, complicated process, etc. Effect

Inactive Publication Date: 2010-12-08
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned dip-coating method and in-situ hydrothermal synthesis technology mainly have the disadvantages of weak combination with the surface of the carrier, thin molecular sieve dipping coating, complex process and high cost.

Method used

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  • Molecular sieve cellular material and preparation method thereof
  • Molecular sieve cellular material and preparation method thereof
  • Molecular sieve cellular material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: 400 mesh 75% 13X molecular sieves, 20% pseudoboth aluminum binder and 5% dilute nitric acid with a weight percentage content of 30% are fully mixed in a mixer and kneaded; The molecular sieve billet was moved to an extrusion molding machine for extrusion molding; the extruded molecular sieve honeycomb billet was placed in an industrial microwave oven to dry for 10 minutes, and then placed in an oven for 6 hours at 120°C; the dried molecular sieve honeycomb billet The block is moved to the muffle furnace for the roasting process. The conditions are: the heating rate is 5°C / min, the temperature rises to 600°C for 3 hours, and then it is naturally lowered to room temperature and taken out to obtain the finished molecular sieve honeycomb material.

Embodiment 2

[0024] Embodiment two: 400 order 75% 5A molecular sieves, 20% pseudoboth aluminum binder and 5% dilute nitric acid with a weight percentage content of 30% are fully mixed in a mixer and kneaded; The molecular sieve billet was moved to an extrusion molding machine for extrusion molding; the extruded molecular sieve honeycomb billet was placed in an industrial microwave oven to dry for 10 minutes, and then placed in an oven for 6 hours at 120°C; the dried molecular sieve honeycomb billet The block is moved to the muffle furnace for the roasting process. The conditions are: the heating rate is 5°C / min, the temperature rises to 600°C for 3 hours, and then it is naturally lowered to room temperature and taken out to obtain the finished molecular sieve honeycomb material.

Embodiment 3

[0025] Embodiment three: 400 mesh 75% Y-type molecular sieves, 20% pseudoboth aluminum binder and 5% dilute nitric acid with a weight percentage content of 30% are fully mixed in a mixer and kneaded; The final molecular sieve blank is moved to an extrusion molding machine for extrusion molding; the extruded molecular sieve honeycomb block is placed in an industrial microwave oven to dry for 10 minutes, and then placed in an oven for 6 hours at 120°C; the dried molecular sieve honeycomb The briquette is moved to the muffle furnace for the roasting process, the conditions are: the heating rate is 5°C / min, the temperature rises to 600°C for 3 hours, and then it is naturally lowered to room temperature and taken out to obtain the finished molecular sieve honeycomb material.

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Abstract

The invention relates to a molecular sieve cellular material and a preparation method thereof. The cellular material comprises the following components in percentage by mass: 80 to 70 percent of molecular sieve, 15 to 20 percent of binder and 5 to 10 percent of dilute acid. The cellular material prepared by using the molecular sieve can efficiently adsorb and purify harmful gases such as NO, NO2, VOCs, NH3, H2S, SO2 and the like and can be taken as a sewage purifying material and a catalyst carrier. The material has the advantages of simple processing procedure, low resistance, large specific surface area, large adsorption capacity, high stability, low cost, repeatability, reproducibility and the like. The molecular sieve cellular material can be taken as a material for purifying waste gas and waste liquid as well as the catalyst carrier and can be widely applied in the fields such as environmental protection, petrochemical industry, catalysis and the like.

Description

technical field [0001] The invention relates to a molecular sieve honeycomb material and a preparation method thereof. Background technique [0002] Molecular sieves are widely used in catalysis, petrochemical, chemical, environmental protection, natural gas, metallurgy and electronics due to their regular pore structure, large specific surface area, excellent stability, high activity and ion exchange properties. [0003] Powder or granular molecular sieve materials have a wide range of applications, and at the same time have achieved great success in industry, but in some special industries that require molecular sieve materials such as low resistance, low pressure drop, large load, convenient filling and high mechanical strength, it is limited. its development and application. The preparation of molecular sieves into honeycomb materials can meet the above requirements and has a good application prospect. [0004] There are usually two ways to prepare molecular sieves int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/16B01J20/30B01J32/00B01J29/70B01J29/08B01J29/40B01J35/04
Inventor 姚炜刘洋周洁张豪杰眭艳辉金彩虹何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH