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Carbon Molecular Sieve (CMS)
The product advantages of carbon molecular sieve are mainly reflected in the following aspects:
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1.Efficient gas separation capability:
Carbon molecular sieves have excellent selective adsorption capabilities, and their pore sizes are uniform, usually between 0.28 and 0.38 nanometers, making them particularly suitable for oxy- gen-nitrogen separation. Oxygen molecules can quickly diffuse into the pores through the micropo- res, while nitrogen molecules are relatively difficult to diffuse into, thus achieving efficient oxygen-nitrogen separation.01 -
2.Strong adsorption capacity Even at very low concentrations of gas components, carbon molecular sieves stillexhibit great ad- sorption capacity. At higher temperatures, their adsorption capacity is still large, which makes it have higher adsorption efficiency than other adsorbents under the same temperature conditions.02
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3.Cost-effectiveness: Carbon molecular sieve nitrogen production process, such as pressure swing adsorption (PSA), has the advantages of low investment cost, fast nitrogen production rate and low nitrogen cost. This makes it the preferred nitrogen-enriched adsorbent for pressure swing adsorption air separation in the engi- neering field.03
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4.Wide range of applications: The use of carbon molecular sieves to produce nitrogen is widely used in many fields such as chem- ical industry, oil and gas industry, electronics industry, food industry, coal industry, pharma- ceutical industry, cable industry, metal heat treatment, transportation and storage.04
|
Model |
Adsorption pressure(Mpa) |
Nitrogen purity(%) |
Nitrogen production rate(Ma/h.t) |
Air nitrogen ratio(N2/NAir) |
|
CMS-240 |
0.75-0.80 |
99.999 |
70 |
6.5 |
|
99.99 |
110 |
4.6 |
||
|
99.9 |
165 |
3.6 |
||
|
99.5 |
240 |
2.6 |
||
|
99 |
290 |
2.3 |
||
|
CMS-260 |
0.75-0.80 |
99.999 |
80 |
6.4 |
|
99.99 |
120 |
4.5 |
||
|
99.9 |
175 |
3.5 |
||
|
99.5 |
260 |
2.5 |
||
|
99 |
305 |
2.2 |
||
|
CMS-280 |
0.75-0.80 |
99.999 |
90 |
6.2 |
|
99.99 |
135 |
4.2 |
||
|
99.9 |
195 |
3.3 |
||
|
99.5 |
280 |
2.3 |
||
|
99 |
335 |
1.9 |
||
|
CMS-330 |
0.75-0.80 |
99.999 |
100 |
6.2 |
|
99.99 |
170 |
4 |
||
|
99.9 |
250 |
3.3 |
||
|
99.5 |
330 |
2.3 |
||
|
99 |
360 |
1.9 |
The use of carbon molecular sieves to produce nitrogen is widely used in many fields such as chem- ical industry, oil and gas industry, electronics industry, food industry, coal industry, pharma- ceutical industry, cable industry, metal heat treatment, transportation and storage.
At the same time, we are actively exploring friendly and healthy competition and collaborative win-win development models among peers, such as strong alliances and alliances with capital to create internationally renowned brand enterprises.
These advantages make carbon molecular sieves an indispensable and important material in modern industry, especially in applications requiring efficient gas separation and purification.
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01In order to produce higher quality products and let customers use them without wor- ries, Huiya Group has reached a strategic cooperation with raw material suppliers, using exclusive raw materials to ensure stable and unified supply of raw materials.
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02The new CMS carbon material, the main raw material for production,is supplied by the group's brother companies, reducing the price difference earned by middlemen, low production costs, and passing on profits to customers.
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03Carbon molecular sieve products produced with Huiya Group's patented product, carbon molecular sieve special flower mud base material: the same one ton of new CMS carbon material can produce nearly lookG more carbon molecular sieve, which reduces costs to a greater extent.
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04Use continuous production equipment to minimize the number of workers, reduce direct labor costs, and reduce the impact of human factors on product quality.
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05Choose the north, where the weather humidity is low and the water content in the air is low, which is more suitable for the production of carbon molecular sieves.
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06Cooperate with Jinan Shengquan Group and China University of Mining and Technology in research and development to study and control the performance of carbon molecular sieves and carbon materials, and continuously iterate and upgrade product technology.
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07The performance of the product must be tested by a nitrogen generator before it leaves the factory. Only after passing the test can it leave the factory.
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08The quality rate is high. 90% of the CMS carbon molecular sieves produced by the company are of CMS-280 and above. The above are the unique advantages that other man- ufacturers do not have except Huiya Group.
Carbon molecular sieves require controlled conditions for use
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1.Pre-treatment of raw airClean raw air entering the carbon molecular sieve adsorption tower is essential. Oil vapor entering can clog the micropores of the carbon molecular sieve, significantly reducing separation efficiency. After being compressed by an air compressor, not only does the temperature of the air increase, but there is also oil vapor (especially in oil-lubricated air compressors).Therefore, it needs to go through a cooler and purificationsystems such as oil removal and drying.Thus, the requirements for raw air entering the carbon molecular sieve are: dew point <-4oC:oil content <0.3 PPM; organic atmosphere.
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2. Concentration and gas production of nitrogen in the productCarbon molecular sieve is used to produce nitrogen, and the concentration of Nz and gas production can be adjusted arbitrarily according to the needs of users. The gas production decreases and the concentration of N2 increases The degree will increase,conversely,N2 will decrease. Users can consider both according to actual needs to get low cost nitrogen.
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3.Equalization timeDuring the nitrogen production process using carbon molecular sieves, when an adsorption tower completes its cycle, the gas inside needs to be injected into another regenerated adsorption tower from both top and bottom directions to equalize the gas pressure between the two towers. This process is known as pressure equalization of the adsorption tower.Selecting an appropriate pressure equalization time can both recover energy and reduce the impact on the carbon molecular sieves within the adsorption tower, preventing their pulverization and extending their service life. Generally, the pressure equalization time is chosen to be l-3 seconds.
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4.Operating pressureThe adsorption pressure is high and the adsorption capacity is large, so pressurized adsorption is beneficial. However, the adsorption pressure is too high, and the air energy consumption and device requirements are high, so it is necessary to choose the adsorption pressure from the per- spective of comprehensive energy consumption. It is suggested that the adsorption pressure in the general atmospheric pressure regeneration process should be 0.6~0.8 MPa.
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5.Operating temperatureBecause the adsorption process has an exothermic effect, the adsorption temperature increases and the adsorption capacity decreases. The nitrogen generator requires that the ambient temperature be less than or equal to 15C for optimal performance. Therefore, choosing a lower adsorption tempera- ture is beneficial for the performance of nitrogen production. The process of the nitrogen genera- tor, under conditions permitting, It is advantageous to reduce the adsorption temperature.
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1. Packaging Specification
Packing material:
Polyethylene plastic drums
Drum size: 270x300x470-mm
Net weight: 20-kg per drum
Loading diameter: 40-mm
Packing type: Vacuum-sealed packaging with excellent airtightness
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2. Storage & Opening Requirements
Vacuum packaging greatly extends CMS storage life
Open the package right before use
Forbidden: Long-term exposure to air, high-humidity environments, oil, or organic subbstances
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3. Loading & Compaction Rules
Compact CMS tightly during tower loading
Permitted compaction methods: Vibrate adsorption tower with vibration tools, Impact tower bm Iract tower body with large wooden hammers
Strictly prohibited: Long-term exposure to air, high-humidity environments, oil, or organic subbstancesDirectly compact CMS using any hard tools
The purity of nitrogen can reach 95%~99.9995%.
The equipment is composed of adsorption tower, control circuit and valves no matter the size. 98% of the internal adsorption tower is filled with carbon molecular sieve.
There is no such thing as better or worse carbon molecular sieves for different models; only suitability matters.
Especially when it comes to replacing adsorbent carbon molecular sieves that have reached their service life, choosing the right model is a critical step. The general method for selecting the appropriate model is as follows:
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For nitrogen purity of 95%-97%, CMS-200 is selected.
CMS-200
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The nitrogen purity is 97%~99.5%, and CMS-220 and 240 are selected.
CMS-220 CMS-240
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The nitrogen purity of 99.9% or above is selected for CMS-240 or above.
CMS-240 or above
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The nitrogen purity of 99.99% or above is selected for CMS-F.
CMS-F
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The purity of nitrogen is 95%~99.999%, JXC-H is selected.
JXC-H
When we can determine the model according to the purity, we need to consider the filling quantity.
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When the volume of the adsorption tower is unchanged (the filling density of carbon molecular sieve is not different) and the filling quantity is consistent, we can choose a higher grade to produce more nitrogen of the same purity.
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Otherwise, when the flow rate is unchanged, we can achieve higher nitrogen purity (the adsorption pressure is the same).
NOTE
The appropriate selection of carbon molecular sieve model and the reasonable filling quantity are the key to ensuring the stable operation, high efficiency and long lifespan of the nitrogen generator.
E-mail
[email protected]
Phone
+86 18603224420
Address
No. 26 Kunshan Road, Xuanzhou Economic Development Zone, Liqiao Town, Xuanzhou District, Xuancheng City, Anhui Province, P.R.China
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