02 - Napotec® | Advantages of Molecular Sieve Wheel Concentration Wheel

Global supplier of environmental protection equipment and core materials, Qingdao Nabok Environmental Technology Co., Ltd., has achieved international advanced levels in VOCs treatment technology and product performance. The first domestic molecular sieve adsorption concentration wheel is a technological achievement that provides clean and comfortable air for people's lives! Now we are launching "Lecang VOCs", regularly sharing VOCs treatment technology, international environmental protection trends, customer cases, and the joys and hardships of environmentalists with everyone. We hope to share a happy and environmentally friendly life with you.

Whether you are a research institute, environmental protection enterprise, engineering company, an enterprise or individual with a commitment to environmental protection, we sincerely invite you to join the Nabok Club to share research results, jointly undertake the responsibility of VOCs treatment, and protect the same blue sky.

Since the Napotec® molecular sieve adsorption concentration wheel device was introduced, it has been widely used in industries such as vehicle and ship mechanical painting, semiconductor cleaning, printing drying, petroleum chemistry, synthetic resin, liquid crystal manufacturing, lithium battery coating, adhesive coating, etc., achieving a VOCs removal rate of over 95%. After years of research and countless explorations, we have obtained multiple patents, and the produced molecular sieve wheels have many advantages.

one Selecting hydrophobic molecular sieves with a high silicon-aluminum ratio

The adsorption material used by our company is an artificially synthesized silicate-aluminate porous crystal, also known as artificial zeolite. It is an incombustible inorganic porous material with the following characteristics:

● The pores are neat and uniform

● It has a large specific surface area and adsorption capacity

● The pore size is uniform

● Molecules smaller than the molecular sieve pores have stronger selectivity

II. Napotec® adopts a special processing technology

Napotec® uses special ceramic fiber paper through a honeycomb body molding and processing technology to produce a honeycomb carrier. This honeycomb carrier enables better contact area between VOCs gas and the zeolite molecular sieve. In addition, the molecular sieve is an ionic adsorbent. It selectively adsorbs molecules based on their size and polarity. Therefore, our company selects a hydrophobic molecular sieve with a high silicon-aluminum ratio to selectively adsorb VOCs, making the molecular adsorption concentration rotary wheel have excellent adsorption performance.

III. Advantages of Napotec® Molecular Sieve Adsorption Concentration Wheel

High adsorption selectivity: The pore size is uniform, it is an ionic adsorbent, and selectively adsorbs based on the size and polarity of molecules.

High hydrophobicity: The hydrophobic molecular sieve with a high silicon-aluminum ratio does not adsorb water molecules in the air and selectively adsorbs VOCs.

Strong adsorption capacity: The adsorption capacity is large, and the single-stage adsorption efficiency can reach 90-98%. It still has strong adsorption ability at a higher temperature.

High temperature resistance and non-flammability: It has good thermal stability, the desorption temperature is 180-220℃, and the maximum operating temperature can reach 350℃. The desorption is thorough, and the VOCs concentration ratio is high.

IV. Comparison of Molecular Sieve Wheel Concentration Wheel Honeycomb Activated Carbon Fixed Bed Device

The molecular sieve wheel concentration wheel is suitable for treating large air volume and low-concentration waste gas. Compared with the bed-type honeycomb activated carbon device, it has the advantages of continuous operation, long material life, high operational stability, high adsorption efficiency, low maintenance cost, safety and reliability, etc. See Table - 1 below for details:

V. Napotec® adopts a modular design

At present, our company's molecular sieve wheel products for industrial organic waste gas treatment come in 11 different diameters, with the maximum diameter reaching 4250mm. The entire product is directly produced, prepared, and transported, which is technically challenging. To achieve industrial production and application, the modular production and assembly technology can perfectly solve this problem.

1. The modular molecular sieve rotor structure can reduce the requirements for the uniformity of temperature distribution, the uniformity of adsorbent loading, and the accuracy of loading quantity during rotor production, thereby lowering the production cost;

2. The modular molecular sieve rotor structure is bolted and has no glue bonding, allowing for easy replacement;

3. The rotor seal, with adjustable fixing devices without glue connection, is easy to replace and adjust.

In addition, multiple-level filtration modules can be set at the front end of the molecular sieve rotor, as shown in the following figure:

Part Two will continue: An overview of the development of Napotec®'s independently produced molecular sieve rotary scrubber and rotary concentrator. Stay tuned for more...