PFN-400D pressure swing adsorption nitrogen production technology
Under a certain pressure, due to the dynamic effect, the diffusion rate of oxygen and nitrogen on the carbon molecular sieve is quite different. In a short time, the oxygen molecules are adsorbed by the carbon molecular sieve in a large amount, and the nitrogen molecules are enriched in the gas phase to achieve oxygen and nitrogen separation.
Since the adsorption capacity of carbon molecular sieve for oxygen varies significantly with pressure, lowering the pressure can desorb the oxygen molecules adsorbed by the carbon molecular sieve, so that the carbon molecular sieve can be regenerated, and the cycle can be repeated alternately to continuously produce high-quality nitrogen.
Main performance index
Nitrogen flow rate: 5~50000Nm³/h
Nitrogen purity: 95-99.999%
Nitrogen pressure: 0.7Mpa (adjustable according to customer requirements)
Dew point: ≤-43℃ (under normal pressure)
Technical characteristics
Unique adsorption tower structure and technology, avoid floating and pulverization of adsorbent, easy to enlarge
Unique internal components, uniform airflow distribution, reduce the impact of high-pressure airflow on the carbon molecular sieve
unique molecular sieve protection measures, the adsorbent will not be added or replaced for ten years in normal operation
Easy operation, stable operation, high degree of automation, unmanned operation can be realized, no loss of nitrogen back-blowing (refining system)
Automatic interlocking nitrogen exhaust device to ensure product nitrogen quality
can be equipped with nitrogen device flow, automatic purity adjustment system, remote monitoring system, etc.
High purity nitrogen supply
High-purity nitrogen fully enclosed isobaric complete equipment:
The process adopts a fully enclosed isobaric drying process to hydrogenate general nitrogen without damage and refinement, achieve no pressure loss, no gas loss, and achieve the purpose of high efficiency and energy saving.
Air nitrogen ratio: 2.3:1
Nitrogen purity: 99.9~99.9999%
(Using two methods, under-hydrogen deoxygenation and perhydro-deoxygenation, to meet the energy-saving requirements of different customers)
Working pressure: ≤1.3Mpa
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