Beijing Fuzhen Techn icalservice Co.,Ltd
Custom ization of non-standard equipm entforA ircom pressors, G asdryers, Nitrogen generators0 xygen generators
and Process gascom pressors
Custom ization of non-standard equipm entforA ircom pressors, G asdryers, Nitrogen generators0 xygen generators
and Process gascom pressors
Hotline： 18201366176 views：
date：2024-12-21 14:52:44
Working principle of pressure swing adsorption (PSA) Nitrogen Generator
The basic principle of pressure swing adsorption is to use adsorbents to have different adsorption capacities for adsorbates at different pressures, and to selectively adsorb various components of the separated gas mixture at a certain pressure. Under the selected adsorption conditions of the adsorbent, the impurity components in the feed gas are removed by pressurized adsorption, and these impurities are removed by depressurization to regenerate the adsorbent. Therefore, generally two adsorption towers are used, and the pressure of each adsorption tower combined by cyclic alternating transformation can achieve the purpose of continuous separation of gas mixtures. Because the adsorption and desorption processes are achieved through pressure changes, this process is called Pressure Swing Adsorption (PSA).
Core of PSA Nitrogen production technology
The core of PSA Nitrogen production technology is carbon molecular sieve, as shown in the figure on the right, which is a porous carbon based material. During the pressure swing adsorption process (about 1 minute), it undergoes pressurization and depressurization, especially under depressurization, molecular sieve is more prone to pulverization. Therefore, how to prevent molecular sieve pulverization is the core technology of pressure swing adsorption nitrogen production, which can increase the service life of equipment.
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Physical image of molecular sieve → |
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At the same time, there are particles, oil, and water in the compressed air, which can cause damage to the molecular sieve, soften and pulverize it, and poison it (by introducing oil), thereby reducing the flow rate and purity of the equipment. Molecular sieve magnified 2000 times - porous structure diagram→. |
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Process flow of pressure swing adsorption nitrogen production
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Fuzhentech Parameter table of Modular Nitrogen Generator |
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Nitrogen Flow m3/h |
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Purity of Nitrogen（Anaerobic contentvol%） |
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Model |
99.999% |
99.995% |
99.99% |
99.95% |
99.9% |
99.5% |
99% |
98% |
97% |
95% |
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FZ-MN-P02 |
2.4 |
3.6 |
4 |
5.7 |
6.7 |
9 |
10.5 |
13.2 |
15.5 |
18.8 |
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FZ-MN-P04 |
4.7 |
7 |
8 |
11.4 |
13.4 |
18 |
21 |
26.3 |
30.8 |
37.5 |
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FZ-MN-P06 |
7 |
10.3 |
11.8 |
17 |
20 |
27 |
31.5 |
39.5 |
46 |
56 |
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FZ-MN-P08 |
9.2 |
13.7 |
15.6 |
22.6 |
26.7 |
36 |
42 |
52.6 |
61.3 |
74.5 |
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FZ-MN-P10 |
11.5 |
17.2 |
19.5 |
28.2 |
33.3 |
44.8 |
52.5 |
65.6 |
76.5 |
93 |
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FZ-MN-P12 |
13.7 |
20.5 |
23.3 |
33.6 |
40 |
53.7 |
62.8 |
78.6 |
91.3 |
111.5 |
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FZ-MN-P14 |
15.9 |
23.9 |
27 |
38.8 |
46.6 |
62.6 |
73.2 |
91.5 |
106.4 |
130 |
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FZ-MN-P16 |
18.1 |
27.2 |
30.9 |
43.8 |
53 |
71.5 |
83.6 |
104.5 |
121.1 |
148.3 |
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FZ-MN-P18 |
20.3 |
30.6 |
34.7 |
49 |
59.6 |
80.5 |
94 |
117.5 |
136 |
166 |
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FZ-MN-P20 |
22.5 |
34 |
38.5 |
54 |
66 |
89.5 |
104.5 |
130 |
150.5 |
184 |
1. The flow rate values in the table are obtained under ambient temperatures of 7 barg for the rated working pressure of air and ≤ 30 ℃ and 20 ℃ for the rated intake temperature；
2. The flow unit standard is based on a gas state of 20 ℃, 1013mbar (a), and 0% relative humidity
3. For other working conditions, please contact us directly for consultation
4. Even if the manufacturer fails to notify in a timely manner, they have the right to modify existing parameters。
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