A kind of preparation method of organic gas adsorption purification agent

A technology for adsorbing purifiers and organic gases, applied in catalyst activation/preparation, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as low adsorption performance and poor interfacial adhesion between materials, and achieve large specific surface area and fast carbonization Speed, strong catalytic effect

CN107970902BActive Publication Date: 2020-03-10攀枝花秉扬科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-03-10
Patent Text Reader

Abstract

The invention discloses a method for preparing an agent for adsorbing and removing organic gas. The agent for adsorbing and removing the organic gas is prepared from tetraethyl orthosilicate, anhydrous ethanol, N,N-dimethylformamide, coconut shells, phenol, polyvinyl alcohol and other raw materials, and according to the method, porous carbon fiber which is obtained by performing multiple modification process treatment and has high mechanical strength and high adsorbability is prepared from the coconut shells; on the basis of the porous carbon fiber, loading of silica and activation of nitrogen-containing gas are achieved through the addition of the tetraethyl orthosilicate, and a large amount of a nitrogen element is introduced on the carbon fiber, so that a strong catalytic effect on sulfur-containing and nitrogen-containing compounds in the air is achieved, and stable and efficient adsorbability of benzene, toluene and other volatile toxic gas is achieved; the skeleton of the modified carbon fiber has strong adaptability to acid, alkali, high temperature and other environments, so that a long-term stable effect of adsorption and purification is achieved; and in addition, the usage mode is flexible, and good applicability to factories, homes and public places is achieved.
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Description

technical field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a preparation method of an organic gas adsorption purification agent. Background technique

[0002] On a global scale, since the industrialization revolution, with the rapid development of the petrochemical industry and the development of the fuel-consuming automobile industry, environmental pollution has become increasingly aggravated, and a large amount of exhaust gas from motor vehicles has caused great harm to people's travel and atmospheric environment. At the same time, the volatilization of organic solvents used in household interiors such as latex paint, wallpaper, floors, heat insulation materials, adhesives, and outdoors such as paint factories, semiconductor factories or printing factories will also cause air pollution. .

[0003] In terms of composition, organic gases mainly include formaldehyde, ammonia, ethylene glycol, esters and other substances. If ...

Examples

Embodiment Construction

[0021] A preparation method of an organic gas adsorption purification agent, comprising the following steps:

[0022] (1) Mix ethyl orthosilicate, absolute ethanol, N,N-dimethylformamide and water in a mass ratio of 2:3:1:10 for later use;

[0023] (2) Put the spinning solution in the electrospinning apparatus, wrap the receiver with aluminum foil, and collect the as-spun fibers on the aluminum foil. The process parameters of the spinning process are positive pressure 15kV, negative pressure 1.5kV, and advance rate 0.04 mm / min, the receiving rate is 30r / min, the distance between the needle and the receiver is 15cm, and the ambient temperature is 30°C. After the spinning is completed, let it stand at room temperature for one day to obtain the as-spun fiber, and then place it in an oven to raise the temperature. Solidify at 160°C for 60 minutes, take it out and put it into a tube furnace, raise the temperature from room temperature to 750°C at a rate of 5°C / min under a nitrogen ...