Air Separation Plants Supply Purest Oxygen & Nitrogen

09

Dec

Air Separation Plants Supply Purest Oxygen & Nitrogen

Rahil Khan

Air Separation Plants supply oxygen and nitrogen by air separation processes for use in industrial applications. Multi-stage air separation can make air up to 99.999% pure, and is recommended for a variety of industrial manufacturing processes, from semiconductor manufacturing to steel manufacturing, food processing, high technology uses, hospitals, welding, cutting and laser applications, osmosis applications, chemicals plants etc.

Air Separation Plant (ASP), also known as Oxygen Plant or Oxygenation Unit, is a facility that produces oxygen. An ASP consists of an air separation unit, a desiccant dehumidification system, an oxygen-cleaning system and other auxiliary systems and components.

Adequate supply of the high-purity oxygen required for a wide range of applications depends on continuous oxygen production installations and air separation plants. They make it possible to cater for fluctuations due to changes in production levels. In addition, they can be tailored to meet your specific requirements.

Air separation plants are units consisting of a compressor, a fractionation column and the necessary instrumentation. These units process air and produce high-purity atmospheric gases by means of pressure reduction and distillation. The main gases produced are oxygen and nitrogen , which are used in industrial operations such as steelmaking and food processing, as well as in environmental control applications, while other component gases (helium, argon, etc.) are also available to meet specific customer requirements.

Another popular process used is PSA (Pressure Swing Adsorption) to produce medical and industrial grade oxygen. The Bhartiya Cryogas is India’s leading Medical PSA Oxygen plants manufacturer and supplier is now a global supplier of the PSA technology. The company’s PSA oxygen generator uses zeolite molecular sieve as sorbent and produces oxygen by making use of the PSA principle. Under certain pressure, zeolite molecular sieve has different oxygen/nitrogen adsorption capacity, i.e. much more nitrogen adsorption capacity than oxygen adsorption capacity.

Bhartiya’s PSA oxygen plants have the purity of 93- 95% suitable for medical consumption capacities ranging from 5m3/hr to 90m3/hr. Some of key features of the gas plant are: All Pressure Vessels shall be fabricated at our Workshop and strictly designed as per ASME SEC VIII DIV.I codes & international standards; All bought-out Equipments / Instruments are of a reputed make; Plant does not require dedicated operator for running the Gas Plant, only period check–up is required; Low capital investment and low operational cost compared to cylinders; Uses Single stage Filtration system before PSA Towers; the Carbon Molecular sieves is of Latest Grade Takeda, Japan / Carbotech, Germany make & extra quantity of CMS ensures satisfactory plant performance over many years; the Total operation of PSA Valves is done by programmable PLC; On - line percentage Oxygen Analyzer shall have Imported sensor(Citi, U.K.)

The company’s PSA unit consists of two towers filled with a special grade Carbon Molecular Sieves (CMS) to adsorb O2 & CO2 present in the air . At the bottom of each tower M.S. perforated plate with 10mm dia. hole and SS wire mesh is welded to hold the CMS filled in the tower. Just above the plate, the ceramic balls are put to act as a holding bed for CMS .The Carbon Molecular Sieves are being filled up to the straight portion at the top of tower. The perforated plate facing the bottom or the cover is the supporting element while the adsorbent is prevented from flowing out by the wire mesh. A 50 mm thick Coconut fiber mat is packed as the cover to fix the adsorbing bed . The upper perforated plate compresses adsorbent fill to avoid undesired void. The coconut fiber mat is squeezed together when the cover is tightened.

Oxygen from PSA Module has varying purity depending upon the pressure in the adsorbed during the one minute cycle time. This vessel gives product Oxygen at constant pressure with constant average gas purity.