Carbon Molecular Sieve (CMS)
What is Carbon Molecular Sieve (CMS)?
Carbon molecular sieve is a porous carbon adsorption material with uniform pore distribution. The pore structure of carbon molecular sieve determines its molecular sieve effect. It can selectively adsorb gas molecules according to their size and shape, and can effectively help separate gases, hence the name carbon molecular sieve.
Carbon molecular sieve working principle to selectively adsorb different gases in the air mixture onto its porous surface. Carbon molecular sieve adsorption capacity for a specific gas depends on the size and shape of the gas molecules, as well as the pore size structure of the carbon molecular sieve used.
People also ask what carbon molecular sieve is used for.
It’s used for various industrial applications, including but not limited to gas separation, catalysis, water purification and controlled oxidation treatment.
Advantages of Heycarbons Carbon Molecular Sieve Uses
Your advantages of CMS at a glance: Nitrogen production
Carbon molecular sieve can be used to separate air and collect nitrogen. Carbon molecular sieve has strong nitrogen production capacity, high nitrogen recovery rate and long service life.
It is suitable for various types of PSA nitrogen generators and is an important part of PSA nitrogen generators. Carbon molecular sieve air separation nitrogen production has been widely used in petrochemical, metal heat treatment, electronic manufacturing, food preservation and other industries.
Your advantages of CMS at a glance:Oxygen production
Oxygen molecules in the air can be preferentially adsorbed by carbon molecular sieves under certain conditions due to their smaller molecular size, and the PSA technology can efficiently separate oxygen and nitrogen.
Carbon molecular sieves can be used for medical oxygen supply, and provide oxygen as fuel or oxidant for chemical reactions in industries such as steel smelting and chemical industry.
Heycarbons Carbon Molecular Sieve Nitrogen Generation
When carbon molecular sieve for nitrogen generator, it is used to separate air and purification. The main components of air are nitrogen (about 78%) and oxygen (about 21%). Oxygen molecules are smaller and more polar, so they are more easily adsorbed by carbon molecular sieves than nitrogen.
Working at room temperature and low pressure can save costs, and the nitrogen generation speed is faster than the traditional low temperature and high-pressure nitrogen process. Therefore, it is the preferred pressure swing adsorption (PSA) air separation nitrogen-rich adsorbent in the engineering field.
The largest application of carbon molecular sieve in the field of nitrogen production is the production of industrial nitrogen through PSA system. This nitrogen is widely used in the chemical industry, oil and gas industry, electronics industry, food industry, coal industry, pharmaceutical industry, cable, metal, heat treatment industry, etc.
PSA Nitrogen Generation Process
The process of producing nitrogen using PSA technology is as follows:
- Adsorption stage: Under high pressure, the air passes through the adsorption tower of the carbon molecular sieve, and the carbon molecular sieve selectively adsorbs oxygen molecules and allows nitrogen to pass through.
- Separation stage: (carbon molecular sieves for gas separation processes) As oxygen is adsorbed, the nitrogen concentration in the air gradually increases, and the purified nitrogen can be used as the final product.
- Regeneration stage: After reducing the pressure, the oxygen adsorbed by the carbon molecular sieve will be desorbed and returned to the air flow. At this time, the carbon molecular sieve can be used again in the process of adsorbing oxygen.
This process can continuously generate nitrogen by controlling the cyclic operation of multiple adsorption towers. Its advantages are:
- High efficiency: PSA system combined with the selective adsorption performance of carbon molecular sieve can efficiently separate high-purity nitrogen from the air, usually reaching a nitrogen purity of more than 99%.
- Low energy consumption: PSA technology does not require cryogenic equipment. Compared with the traditional liquid air fractionation method, the energy efficiency is greatly improved, and it is energy-saving and environmentally friendly.
- Adjustability: The pore structure of carbon molecular sieve can be adjusted according to demand to meet the requirements of nitrogen purity and flow in different applications.
Heycarbons CMS Production Process
The production process of Heycarbons carbon molecular sieve involves steps: raw material preparation, carbonization, activation, post-treatment and screening.
Carbon Molecular Sieve in Other Applications
- Biogas treatment at landfills
- Separation of high-purity oxygen from air.
- Purification of hydrogen using PSA technology
Recommendation of Heycarbons CMS
Heycarbons carbon molecular sieve is pelletized, with particle diameters of 1mm, 1.5mm, and 2mm in most cases. Both CTC and iodine values are low, with CTC being only 30%-40%.
If you need high-efficiency carbon molecular sieves for nitrogen production, please contact the Heycarbons. With 20 years of history and complete production equipment, Heycarb team can provide you with professional advice and suggestions according to your needs. Contact Heycarbons to get free samples. Carbon molecular sieves HS code is 380210.
Carbon Molecular Sieve Specification
Model CMS-200 Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 680-700kg/m3
3. Adsorption cycle: 2×60S
4. Compressive strength: ≥70N/particle
Model Adsorbent
pressure
（Par）N2 purity
（%）N2 production rate
（Nm3/h.t）N2 recovery（%）
(N2/Air)
CMS-200 0.6 99.99 60 ≥21
99.9 115 ≥31
99.5 165 ≥40
99 190 ≥45
98 230 ≥46
97 270 ≥48
0.8 99.99 75 ≥21
99.9 140 ≥31
99.5 200 ≥40
99 235 ≥45
98 275 ≥46
97 315 ≥48
Model CMS-220 Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 680-700kg/m3
3. Adsorption cycle: 2×60S
4. Compressive strength: ≥70N/particle
| Model | Adsorbent pressure （Par） | N2 purity （%） | N2 production rate（Nm3/h.t） | N2 recovery（%） (N2/Air) |
|---|---|---|---|---|
| CMS-220 | 0.6 | 99.99 | 75 | ≥21 |
| 99.9 | 130 | ≥31 | ||
| 99.5 | 175 | ≥40 | ||
| 99.0 | 205 | ≥45 | ||
| 98.0 | 245 | ≥46 | ||
| 97.0 | 285 | ≥48 | ||
| 0.8 | 99.99 | 100 | ≥21 | |
| 99.9 | 160 | ≥31 | ||
| 99.5 | 220 | ≥40 | ||
| 99.0 | 255 | ≥45 | ||
| 98.0 | 295 | ≥46 | ||
| 97.0 | 335 | ≥48 |
Model CMS-240 Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 680-700kg/m3
3. Adsorption cycle: 2×60S
4. Compressive strength: ≥70N/particle
| Model | Adsorbent pressure （Par） | N2 purity （%） | N2 production rate （Nm3/h.t） | N2 recovery（%） (N2/Air) |
|---|---|---|---|---|
| CMS-240 | 0.6 | 99.99 | 95 | ≥21 |
| 99.9 | 150 | ≥31 | ||
| 99.5 | 200 | ≥40 | ||
| 99.0 | 230 | ≥45 | ||
| 98.0 | 270 | ≥46 | ||
| 97.0 | 310 | ≥48 | ||
| 0.8 | 99.99 | 115 | ≥21 | |
| 99.9 | 180 | ≥31 | ||
| 99.5 | 240 | ≥40 | ||
| 99.0 | 280 | ≥45 | ||
| 98.0 | 320 | ≥46 | ||
| 97.0 | 360 | ≥48 |
Model CMS-260 Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 680-700kg/m3
3. Adsorption cycle: 2×60S
4. Compressive strength: ≥70N/particle
| Model | Adsorbent pressure （Par） | N2 purity （%） | N2 production rate （Nm3/h.t） | N2 recovery（%） (N2/Air) |
|---|---|---|---|---|
| CMS-260 | 0.6 | 99.99 | 115 | ≥21 |
| 99.9 | 170 | ≥31 | ||
| 99.5 | 220 | ≥40 | ||
| 99.0 | 250 | ≥45 | ||
| 98.0 | 290 | ≥46 | ||
| 97.0 | 330 | ≥48 | ||
| 0.8 | 99.99 | 130 | ≥21 | |
| 99.9 | 200 | ≥31 | ||
| 99.5 | 260 | ≥40 | ||
| 99.0 | 300 | ≥45 | ||
| 98.0 | 340 | ≥46 | ||
| 97.0 | 380 | ≥48 |
Model CMS-300 Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 640-680kg/m3
3. Adsorption cycle: 2×35-45S
4. Compressive strength: ≥70N/particle
5. Inlet temperature: ≤20℃
| Model | Adsorbent pressure（Par） | N2 purity（%） | N2 production rate（Nm3/h.t） | N2 recovery（%）(N2/Air) |
|---|---|---|---|---|
| CMS-300 | 0.7 | 99.999 | 95 | 6.8 |
| 99.99 | 145 | 4.6 | ||
| 99.9 | 210 | 3.6 | ||
| 99.5 | 300 | 3.3 |
Model CMS-F Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 680-700kg/m3
3. Adsorption cycle: 2×60S
4. Compressive strength: ≥70N/particle
| Model | Adsorbent pressure （Par） | N2 purity （%） | N2 production rate （Nm3/h.t） | N2 recovery（%） (N2/Air) |
|---|---|---|---|---|
| CMS-F | 0.6 | 99.99 | 95 | ≥25 |
| 99.9 | 150 | ≥35 | ||
| 99.5 | 200 | ≥43 | ||
| 99.0 | 230 | ≥48 | ||
| 98.0 | 270 | ≥50 | ||
| 97.0 | 310 | ≥52 | ||
| 0.8 | 99.99 | 115 | ≥25 | |
| 99.9 | 180 | ≥35 | ||
| 99.5 | 240 | ≥43 | ||
| 99.0 | 280 | ≥48 | ||
| 98.0 | 320 | ≥50 | ||
| 97.0 | 360 | ≥52 |
Model CMS-H Technical Parameters:
1. Particle diameter: 1.0-2.0mm
2. Bulk density: 680-700kg/m3
3. Adsorption cycle: 2×60S
4. Compressive strength: ≥70N/particle
| Model | Adsorbent pressure （Par） | N2 purity （%） | N2 production rate （Nm3/h.t） | N2 recovery（%） (N2/Air) |
|---|---|---|---|---|
| CMS-H | 0.6 | 99.99 | 115 | ≥26 |
| 99.9 | 170 | ≥36 | ||
| 99.5 | 220 | ≥44 | ||
| 99.0 | 250 | ≥49 | ||
| 98.0 | 290 | ≥51 | ||
| 97.0 | 330 | ≥53 | ||
| 0.8 | 99.99 | 130 | ≥26 | |
| 99.9 | 200 | ≥36 | ||
| 99.5 | 260 | ≥44 | ||
| 99.0 | 300 | ≥49 | ||
| 98.0 | 340 | ≥51 | ||
| 97.0 | 380 | ≥53 |
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