PFN-2500D type pressure swing adsorption nitrogen plant
Key words:
PFN-2500D type pressure swing adsorption nitrogen plant
Classification:
- Product Description
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Pressure Swing Adsorption Nitrogen Production Technology
Under a certain pressure, due to the kinetic effect, the diffusion rate of oxygen and nitrogen on carbon molecular sieve is quite different. In a short time, oxygen molecules are adsorbed by carbon molecular sieve, and nitrogen molecules are enriched in the gas phase to achieve oxygen and nitrogen separation.
Because the adsorption capacity of carbon molecular sieve for oxygen varies obviously with the pressure, the oxygen molecules adsorbed by carbon molecular sieve can be desorbed by reducing the pressure, so that the carbon molecular sieve can be regenerated, and the cycle can be repeated alternately, and the high quality nitrogen gas can be continuously produced.
■ Main performance indicators
Nitrogen flow:5~50000Nm3/h
Nitrogen purity:95~99.999%
Nitrogen pressure:0.7MPa (adjustable according to customer requirements)
Dew point:≤-43°C (under normal pressure)
■Technical features
Unique adsorption tower structure and process, to avoid floating adsorbent, pulverization, easy to large-scale
Unique internal components, uniform airflow distribution, reduce the impact of high-pressure airflow on carbon molecular sieve
Special molecular sieve protection measures, the adsorbent will not be added or replaced for ten years of normal operation.
Simple operation, stable operation, high degree of automation, can realize unmanned operation, nitrogen back blowing without loss (refined system)
Automatic interlocking nitrogen evacuation device to ensure product nitrogen quality
Optional nitrogen device flow, purity automatic adjustment system, remote monitoring system, etc.
High purity nitrogen supply
Fully enclosed isobaric complete set of high purity nitrogen:
The process adopts a fully closed isobaric drying process to hydrogenate nitrogen without damage, to achieve no pressure loss, no nitrogen loss, to achieve the purpose of high efficiency and energy saving.
Air-to-nitrogen ratio:2.3:1
Nitrogen purity:99.9-99.9999%(under-hydrogen deoxygenation and over-hydrogen deoxygenation are adopted to meet the energy saving requirements of different customers)
Working pressure:<1.3MPa
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Methanol cracking hydrogen production unit
Methanol cracking-pressure swing adsorption hydrogen production technology is a kind of methanol, water as raw materials, at a certain temperature and pressure by the catalyst into a mixed gas into a certain temperature and pressure by the catalyst cracking into a hydrogen-containing mixed gas, and then through the pressure swing adsorption purification of hydrogen technology.
Natural gas hydrogen production unit
The technology uses natural gas to undergo a chemical reaction with water vapor in a special reformer filled with a catalyst after pressurized desulfurization to generate a converted gas containing hydrogen, carbon dioxide and carbon monoxide. After part of the heat is recovered by the waste pot, CO in the converted gas is converted into H?, and the converted gas is purified by pressure swing adsorption (PSA) after cooling and condensing gas-liquid sharing.
Pressure swing adsorption hydrogen extraction device
After the mixed gas containing hydrogen (H₂) enters the adsorption tower of pressure swing adsorption (PSA) device, because the adsorption capacity of the adsorbent in the adsorption bed for each component in the gas mixture varies with the pressure change, the impurities in the feed gas are adsorbed during pressurization, and the components (hydrogen) that are not easily adsorbed are output as products from the outlet end of the adsorption bed. During decompression, the adsorbed impurities are desorbed and the adsorbent is regenerated at the same time, at least four adsorbent bed cycles are used to operate to achieve a continuous output of product hydrogen.
VPSA pressure swing adsorption oxygen plant
Multi-tower combined VPSA pressure swing adsorption oxygen production technology is a new process with low energy consumption, low noise and low maintenance cost. It has been accepted by the first set of devices in Zhejiang Province and is widely used in non-ferrous smelting, glass smelting, iron and steel smelting, chemical industry, paper making and other industries.
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