PSA(pressure swing adsorption) nitrogen generation is implemented by the selective adsorb characteristic of CMS, and different adsorption capacity under different pressure.
When pressure arise, the oxygen will be adsorbed because its faster expansion speed in the micropore structure of CMS, thus oxygen gas and nitrogen gas is separated.
While pressure reduces, the oxygen is desorbed, and CMS regenerated.
This cyclicoperation let the nitrogen generation in succession.
Usage
Carbon molecular sieve(CMS) is applied in separation nitrogen from the air.
The cost of nitrogen generation under normal temperature and low pressure is much less than that under low temperature and high pressure.
Meanwhile, there are a lot more advantages such as faster nitrogengeneration speed, lower cost, etc.
Therefore, now it becomes the first choice for PSA nitrogen generator plants.
Nitrogen gas is widely used in all industries of chemical, electronics, foods, coal, medical, cable, heat treatment, transportation, and all kinds of storage, etc.
Performance
Model
Adsorption pressure
Nitrogen Purity (%)
Nitrogen generation ratio (M³/Mt.Ht)
Air/N²
CMS-200
0.75-0.8
95
400
2.1
99.5
200
2.7
99.9
125
3.9
99.99
80
5.0
99.999
35
7.0
CMS-220
0.75-0.8
95
420
2.0
97
340
2.0
98
260
2.25
98.5
255
2.29
99
245
2.38
99.5
220
2.6
99.9
145
3.7
99.99
100
4.8
99.999
55
6.8
CMS-240
0.75-0.8
95
440
1.8
97
360
2.0
98
285
2.2
98.5
275
2.25
99
260
2.35
99.5
240
2.5
99.9
160
3.5
99.99
110
4.6
99.999
65
6.6
CMS-260
0.75-0.8
99
320
2.2
99.5
260
2.4
99.9
175
3.4
99.99
120
4.6
99.999
70
6.5
CMS-280
0.75-0.8
99
335
2.2
99.5
280
2.3
99.9
190
3.4
99.99
135
4.5
99.999
90
6.4
Diameter
1.0-1.8
Bulk density
630-680G/L
Test temperature
Adsorption time
2X50s
Compressive strength
≥50N/grain
≤20℃
Process
Air Supply System:
The air will be purified by compression to remove oil, water and dust, then be used by PSA device.
PSA Nitrogen Generation System:
The compressed air flows from bottom to top through the adsorption towers, which is fully filled with CMS. The oxygen will be first adsorbed by the surface of CMS, while nitrogen will still go on flowing to the buffer tank. After adsorbing for a certain time, CMS needs regeneration as it issaturated by oxygen.
Regeneration will be implemented by stopping adsorption and reducing pressure in the tower. The alteration of adsorption and regeneration of the two towers makes nitrogen generation continuously.
Packing
Company Introduction
Huzhou Xin'Aoli Adsorption Material Co.,ltd is located in Hangjiahu plain of Yangtze River delta. it is 20km away from urban area of Huzhou, and 150km from Shanghai city, enjoying convenient transportation. We own reliable and professional technicians, and have been doing production and researches of carbon molecular sieve(CMS) for more than 15 years. Based on our technical cooperation with Tsinghua University, CMS is a successful project, which took the essence of core technology from Germany and Japan. We also combined with our own skills, making our product outstanding in China, and XinAoli a leading brand all over the world. We are acclaimed by our clients for good stable quality, reasonable prices, and nice after-sale service. Nowadays, CMS has been applied in nitrogen gas genaration industry, and our products are being sold to countries all over the world.
