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Cryogenic air separation plant

We lead the industrial gas manufacturing industry in India because of advanced technology and innovative designing used in our cryogenic air separation plants and other machinery. Manufactured, fabricated and designed in technical collaboration with Felice Mandressi Italia, an internationally famous Italian company for its industrial gas designs and manufacturing. Our plants lead the market in the matters of performance, quality, durability, reliability, ease of use, low cost maintenance and incomparable prices. We leave no stone unturned in designing the plants that meet the expectations our customers. Being a customer-centric company, we place a high value on the satisfaction of our customers. Over the years, we have sold over 350 industrial gas plants to our clients in more than 45 countries including Yemen, Saudi Arabia, UAE, Qatar, Nigeria, South Africa, Afghanistan, Mongolia, Iraq, Bolivia, Peru, Mexico and many more. Our clients are satisfied are satisfied with the quality of our plants as well as after sales service.

Our air separation plants come in various capacities ranging from 20m3/hour to 5,000m3/hour. And, the purity of oxygen and nitrogen generated in our plants is 99.7% and 99.9% respectively. This purity is considered good for industrial as well as medical applications. As part of quality control, we ensure that each component used in our machines is thoroughly quality-tested. In recognition of our commitment to quality, all major quality assurance companies has awarded us certifications like ISO 9001:2008 and CE. Our plants are fabricated and manufactured in compliance with international standards.

Air Separation Plant
Basic principle

Our air separation plants tap atmospheric air, which enters the molecular sieve purification system where the process air is cleaned of impurities such as carbon dioxide and moisture. Air is liquefied by cryogenic cooling with the help of the latest plate and fin, high efficiency heat exchangers and expanders. Air gets separated into oxygen, nitrogen and various inert gases in the air separation column.

Salient features of plants :
  • Excellent absorption of gas in cylinders
  • No gas loss and high yield
  • Very simple and safe to operate
  • Low power consumption
  • Low maintenance cost
  • Smooth operations
  • Sturdy design
  • Low maintenance cost
  • Life span over 25 years
  • Easy to install
  • Safe to operate
Air Separation Plant
Scope of supply of air separation plants :
Air compressor
Filter system with steel structure and supports elements. De-dust system with valve, collecting machine, spray equipment, automatic clean, instrument and electric control system. Send the pressure difference signals to PLC by pressure differential transmitter.
Air purification unit
Air Refrigerant compressor with a special motor
  • One condenser
  • One evaporator/water cooler
  • One set of Piping and valves
  • Instrumentation
  • Water Separator
Molecular Sieve Battery on skid Complete with two vessels

Reactivation heater complete with Molecular Sieve designed for process skid mounting.

Defrost Heater comprising of heating coils and heating element 5 KW. Gas/Air Lines as per standard Layout

All pipelines for process air, Nitrogen and Oxygen line, HP line upto manifold along with short bend, elbow, socket and other necessary fitting as per our standard layout drawing.

Air separation column (cold box)`

The entire air separation process depends on the air separation unit (A.S.U). Here, oxygen and nitrogen are separated on account of the difference in their liquefaction temperatures. Liquefied air is directed to the lower and upper column using a double rectification process at temperatures below (–) 180 deg centigrade.

Design and efficiency of the A.S.U determines the quality of the final product i.e. oxygen and nitrogen in terms of quantity and quality. Felice Mandressi Italia designed A.S.U features a highly efficient fin type aluminum heat exchangers and column, where the entire upper column is a packed column thus reducing the operational pressure and increasing the Oxygen, Nitrogen and Argon recovery.

The expander is a rotary machine running on gas bearing. This is used to provide cooling for the liquefaction of air at minus 180 to (-) 190degrees centigrade, including :
Expansion turbine body
Ventricular joint
inlet filter
Bearing & sealed gas system
-Instrument gas filter
-ET bearing and sealed gas system
Oxygen cylinder filling system
The oxygen is filled into cylinders by an oxygen filling system (pump/booster).
Cylinder filling station for filling oxygen gas
Complete with control valves pressure gauge safety valve & pigtail connections points each.
Purity testing analyser
Digital automatic purity analyzer is used.
Technical Specifications
BDM 50 50 m3/hr 200 99.7% 99.99%
BDM 80 80 m3/hr 320 99.7% 99.99%
BDM 100 100 m3/hr 400 99.7% 99.99%
BDM 130 130 m3/hr 500 99.7% 99.99%
BDM 150 150 m3/hr 600 99.7% 99.99%
BDM 170 170 m3/hr 680 99.7% 99.99%
BDM 200 200 m3/hr 800 99.7% 99.99%
BDM 250 250 m3/hr 1000 99.7% 99.99%
BDM 300 300 m3/hr 1200 99.7% 99.99%
BDM 400 400 m3/hr 1600 99.7% 99.99%
BDM 500 500 m3/hr 2000 99.7% 99.99%
BDM 1000 1000 m3/hr 4000 99.7% 99.99%
BDM 1500 1500 m3/hr 6000 99.7% 99.99%
BDM 2000 2000 m3/hr 8000 99.7% 99.99%
BDM 3000 3000 m3/hr 12000 99.7% 99.99%
BDM 4000 4000 m3/hr 16000 99.7% 99.99%
BDM 5000 5000 m3/hr 20000 99.7% 99.99%