Air Separation Plant

Air Separation Plant
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MOS Techno Engineers are known as the pioneers among the Air Separation Plants Manufacturers. Our engineers have designed Air Separation Plant are the most economical and cost-effective technology for the manufacturers of medium to large scale. MOS Techno Engineers are well known for their reliability and performance of the Cryogenic Air Separation Unit. Our ASU Plant is typically adopted various manufacturers to produce various high purity gases like oxygen, nitrogen and high purity gases their liquid form. Air Separation Plant Price offered by MOS Techno Engineers is a much-competing price in the industry.

Air Separation Unit

We fabricate export our own air separation system and we propose the best cryogenic air separation plant capital cost. Our Air Separation plants delivering liquefied industrial gas produce fitting cryogenic technology. With the technologically seasoned team of engineers, we have earned the name among the top air separation plant manufacturers in India.

Air Separation Plants mainly consists of the following equipment

  • Plate type heat exchanger
  • Medium pressure column
  • Low-pressure column
  • Expansion turbine
  • Air liquefier
  • Rich liquid sub-cooler
  • Sub-cooler
  • Liquid Nitrogen separator
  • Liquid Oxygen separator

Our automated air separation units ASU’s are come up in the demand with assorted capabilities that vary from 50 m3/hr up to 5000 m3/hr. So, you are recommended to adopt one as per your necessity as well as the budget. The results are technologically very advanced so they can generate up to 99.7% high purity oxygen and up to 99.99% high purity nitrogen. Our ASU’s are fabricated by consolidating raw substances taken from CE certified vendors so as to make them work on low pressure commencing to high yield.

ASU Plant Specifications

Oxygen Production Nitrogen Production
AlternativeGas QuantityGas PurityProduct Pr.Gas QuantityGas PurityProduct Pr.
1MOS 4040 cu.m/hr0.995150 kg/cm2* 210 cu.m/hr0.960.1 kg/cm2
2MOS 8080 cu.m/hr0.995150 kg/cm2* 400 cu.m/hr0.960.1 kg/cm2
2AMOS 8070 cu.m/hr0.996150 kg/cm2* 80 cu.m/hr0.9950.1 kg/cm2
2MOS 100100 cu.m/hr0.995150 kg/cm2* 500 cu.m/hr0.960.1 kg/cm2
3AMOS 10090 cu.m/hr0.996150 kg/cm2* 100 cu.m/hr0.9950.1 kg/cm2
4MOS 150150 cu.m/hr0.995150 kg/cm2* 700 cu.m/hr0.960.1 kg/cm2
4AMOS 150135 cu.m/hr0.996150 kg/cm2* 150 cu.m/hr0.9950.1 kg/cm2
Oxygen Production Nitrogen Production
AlternativeGas QuantityGas PurityProduct Pr.Gas QuantityGas PurityProduct Pr.
1MOS 200200 cu.m/hr0.995150 kg/cm2* 700 cu.m/hr0.980.1 kg/cm2
1AMOS 200180 cu.m/hr0.996150 kg/cm2* 400 cu.m/hr0.99990.1 kg/cm2
2MOS 300300 cu.m/hr0.995150 kg/cm2* 1300 cu.m/hr0.980.1 kg/cm2
2AMOS 300270 cu.m/hr0.996150 kg/cm2* 700 cu.m/hr0.99990.1 kg/cm2
2MOS 400400 cu.m/hr0.995150 kg/cm2* 1600 cu.m/hr0.980.1 kg/cm2
3AMOS 400360 cu.m/hr0.996150 kg/cm2* 900 cu.m/hr0.99990.1 kg/cm2
4MOS 600600 cu.m/hr0.995150 kg/cm2* 2940 cu.m/hr0.980.1 kg/cm2
4AMOS 600540 cu.m/hr0.996150 kg/cm2* 1400 cu.m/hr0.99990.1 kg/cm2
5MOS 10001000 cu.m/hr0.99540 kg/cm2* 4500 cu.m/hr0.980.1 kg/cm2
5AMOS 1000900 cu.m/hr0.99640 kg/cm2* 2000 cu.m/hr0.99990.1 kg/cm2

Air Separation Plant Design

Cryogenic Air Separation Process

The cryogenic air separation plant production process is the most successful air separation process, practiced constantly in medium to large scale gas production plants. It is the most adopted technology for the generation of nitrogen (N2), oxygen (O2), and argon (AR) as gases and/ or liquid gases and thought to be the most cost-effective technology for high production rate plants. Different modifications occur resulting from differences in user requirements in the cryogenic air separation cycles to produce industrial gas products. The cycle of processing depends on:

  • How many products are required (likely simply oxygen or nitrogen, both oxygen and nitrogen, or nitrogen, oxygen, and argon)
  • Required purities level of the output.
  • Gaseous product delivery pressures.
  • Lastly, whether the products need to be stored in Liquid form.

Air compression

  • Compression of ambient air by a multi-stage turbo compressor with intercoolers at a supply pressure of approx. 6 bar.
  • Removal of dust particles by a mechanical air filter at the inlet of the compressor.

Air cooling and purification

  • Cooling of process air with water in a direct contact cooler and removal of water-soluble air impurities.
  • Chilling of cooling water in an evaporation cooler against dry nitrogen waste gas from the rectification process.
  • Removal of CO₂, water, and hydrocarbons from the process air is periodically loaded/regenerated molecular sieve adsorbers.

Cold production and internal product compression

  • Cooling of process air in heat exchangers down to nearly liquefaction temperature by means of countercurrent with gas streams from the rectification process.
  • Further compression of a sidestream of process air by an air booster compressor. Expansion and cold production of the boosted air stream in an expansion turbine.
  • Expansion and liquefaction of a sidestream of the boosted air in a liquid separator.
  • Evaporation and warming to the ambient temperature of the pumped oxygen and nitrogen product in high-pressure heat exchangers.

Cryogenic rectification of air

  • Pre-separation of the cooled and liquefied air within the pressure column into oxygen-enriched liquid in the column sump and pure nitrogen gas at the column top.
  • Liquefaction of the pure nitrogen gas in the condenser/reboiler against boiling oxygen in the sump of the low-pressure column. Liquefied nitrogen provides the reflux for the pressure column and (after sub-cooling) for the low-pressure column.
  • Separation of the oxygen-enriched liquid within the low-pressure column into pure oxygen in the sump and nitrogen waste gas at the top.

Our ASU Plants are designed to produce the purest oxygen, and argon from the air through the process of concentration, cooling, liquefaction and distillation columns of air. Air is separated for production of oxygen, nitrogen, argon and ‐ in some special cases ‐ other rare gases (krypton, xenon, helium, neon) through cryogenic rectification of air. The results can be performed in gaseous form for pipeline supply or as the cryogenic liquid for storage and supplied by truck. The cryogenic air separation process is one of the most successful air separation processes, most often operated in medium to large scale industries.

Pure Oxygen Production

Cost-optimized process for small- and medium-sized oxygen production plants as in the conventional process, a gas stream from the low-pressure column is fed into the plant. Due to the optimized packing, the gas stream is already free of nitrogen. Therefore, only the remaining oxygen needs to be collected in the plant. Oxygen purity and recovery can be kept at the same level as in the conventional process. The additional pure Oxygen column is no longer required.