Zeolite honeycomb VOCs waste gas treatment of honeycomb zeolite molecular sieve

I. Introduction to honeycomb zeolite:

The main material of zeolite molecular sieves is a natural zeolite, the zeolite has a uniform pores, the pore diameter and average molecular size, is made up of SiO2, Al2O3 of alkali metal or alkaline earth metal and inorganic microporous materials, its pore volume accounted for 40-50% of the total volume, specific surface area of 300-1000 m2 / g, high temperature resistance, nonflammable, good thermal stability and hydrothermal stability, etc.Molecular aperture under 2 nm for microporous molecular sieves, 2-50 nm for mesoporous molecular sieve (more than 50 nm for macroporous molecular sieve), mesoporous molecular sieve has a very high specific surface area, ordered pore rules structure, narrow pore size distribution, pore diameter size adjustable etc, makes it impossible in many microporous molecular sieve macromolecular adsorption, separation, and play an important role in catalytic reaction.Mesoporous molecular sieves can generally be divided into silicon and non-silicon. The mesoporous molecular sieves have narrow pore size distribution, regular pore structure and mature technology, and have been studied a lot.Silicon mesoporous molecular sieves can be used in the fields of catalysis, separation and purification, gas sensing, etc.Non-silicon mesoporous molecular sieves mainly include transition metal oxides, phosphates and sulfides.It is widely used in organic waste gas adsorption, catalyst loading, acid catalysis, oxidation catalysis and other fields.At present, the company produces microporous and mesoporous cellular molecular sieves.

Features of zeolite: Honeycomb zeolite adsorbent for industrial VOCS organic waste gas treatment is suitable for spray painting industry workers

Honeycomb zeolite molecular sieve is a molecular sieve carrier with good adsorption performance, no secondary pollution, and can be regenerated at high temperature. It is 40% more efficient than similar activated carbon, and has been widely used in adsorption, separation, catalysis and environmental fields. It is more suitable for the treatment of organic waste gas with low air volume and high concentration.Molecular sieves have the following advantages over other adsorbents:

1. Strong adsorption selectivity: This is due to the uniform size of the pore diameter of the molecular sieve and the fact that it is an ionic adsorbent.Therefore, it can be selectively adsorbed according to the size and polarity of the molecule.If it is effective in removing ethylene from saturated hydrocarbons, it is also effective in removing acetylene from ethylene, depending on its strong polarity.

2. Strong adsorption capacity.Even if the concentration of gas composition is very low, it still has adsorption capacity.

3. At a higher temperature, it still has a large adsorption capacity, while other adsorbents are greatly affected by temperature. Therefore, under the same temperature, the adsorption capacity of molecular sieves is large.It is because of the above advantages, molecular sieve has become a very good adsorbent, widely used in the production of basic organic chemical industry, petrochemical industry, in the treatment of harmful gases, also often used in SO2, NOx, CO, CO2, NH3, CCl4, water vapor and gaseous hydrocarbon waste gas purification;

4, high temperature regeneration, high regeneration efficiency, high safety.(Desorption temperature 180-210℃)

The use of molded molecular sieve as adsorbent for waste gas treatment will become the mainstream.Molecular sieve as carrier technology has been widely used in foreign countries.Molecular sieve can be designed and applied according to different concentrations and particle sizes of pollutants. After adsorption and concentration by molecular sieve, the concentration times of pollutants can reach several times to dozens of times. After concentration, the waste gas can be condensed and recovered or burned according to needs

5. Zeolite specification, honeycomb zeolite appearance size: 100*100*100mm, square honeycomb block, size can be customized according to customer requirements.