Universal Industrial Plants
Oxygen Nitrogen Plants

We are manufacturers and Exporters of oxygen/nitrogen gas & liquid plants in India. Our oxygen nitrogen plants are being manufactured as per the latest technology & design of the Company ING. L. & A., BOSCHI, ITALY since 1930. This technology has been proven all over the world for its working efficiency & trouble free operation.


Process ChartProcess ChartProcess ChartProcess Chart

Prcoess Chart
Range: 10m3/hr to 1000m3/hr
With leakproof stainless steel column and skid mounted version for high purity medical and industrial oxygen.

Description: UB series oxygen/nitrogen plants are used for filling high pressure Oxygen/nitrogen gas in cylinders/bottles by liquid oxygen pump ( oil free & water free) for industrial & medi
cal applications .For filling liquid oxygen & liquid nitrogen additional liquid tapping facility is available.

Technical Specifications
 Name of the Models UB - 20 UB - 30 UB - 50 UB - 80 UB - 100 UB - 150 UB - 200 UB - 300 UB - 400 UB - 500 UB -1000
 Capacities (Cubicmeter/hr) 20 30 50 80 100 150 200 300 400 500 1000
 No. of Cylinders in a Day
 (Oxygen/Nitrogen)
80 100 200 300 400 600 800 1200 1600 2000 4000
* Filling of oxygen by liquid oxygen pumps, liquid nitrogen pump is optional.

  Main Equipments
• Suction Filter
• After Cooler
• Moisture Separator
• Expander
• Chilling Unit
• Oil Absorber
• Dust Filter
• Filling Manifold
• Air Separation Column
• Liquid Oxygen Pumps/Filling compressor
• Molecular Sieve Battery
• Four Stage Air Compressor
Oxygen Filling Pump
 
Oxygen Filling Pump

Five Step Boschi Process for Manufacture of oxygen & nitrogen


Step 1 Compression of Atmospheric Air
Step 2 Purification of Air
COMPACT PROCESS SKID
Step 3 Cooling of Air
Step 4 Separation of Liquid AirInto Oxygen and Nitrogen
LATEST LEAKPROOF STAINLESS STEEL COLUMN
Step 5 Compression/Withdrawl and Filling of Oxygen and Nitrogen by latest liquid oxygen pump technology to fill bone dry high purity oxygen in Cylinders.
Now, no need of old type of bulky oxygen compressors, no more break downs, moisture or rusting in cylinders. Thanks to the latest liquid oxygen pump technology

Our Company has patronized the technology of Boschi,Italy as it has been the most successful in the world specially in Europe due to excellent design features and efficient process cycle. The boschi process and technology is highly RELIABLE with PROVEN performance of over 70 years. The process of manufacture of oxygen and nitrogen from oxygen/nitrogen plants has been very much simplified by Dr.Boschi of Italy with the following advantages.

Oxygen and nitrogen is made from atmospheric air.
The process of manufacture involves deep refrigeration/cooling of atmospheric air involving cryogenic temperatures.
Oxygen and Nitrogen is made from the purest form that is liquid air which is separated by process of rectification/distillation.
The oxygen and nitrogen can be drawn in liquid form or converted into gas up to 155/200 bar by a built in liquid oxygen/nitrogen pump.
Oxygen purity upto 99.7%for industrial and medical grade is produced. Nitrogen gas can be collected at 0.1bar at the outlet of the cold box and compressed as per requirement or can be pumped upto 150/200 bar by method of internal compression by a liquid nitrogen pump. The standard commercial purity of nitrogen gas is 96-99% and upto 99.99% or ppm grade can be produced.
There is no requirement of raw materials and no recurring cost of Chemicals in the BOSCHI process.
The oxygen and nitrogen plants are designed for continuous duty and are automatic and can be operated by just one person.

We have commenced the manufacture of the oxygen/nitrogen plants at New Delhi in 1985 under expert supervision of the Italian Engineers with the ultimate goal to manufacture the same quality of plants produced in
Europe with a much cheaper labor cost.

We have been highly successful in exporting back to Italy to Ing &A Boschi, Italy equipments and oxygen plants for sale in Europe and other parts of the world.

Dr.Boschi himself took the trial and successful run of the first oxygen and nitrogen plant manufactured at New Delhi in 1986 and certified ok for export to Italy and meeting international standards.

Now it has been over 23 years since we have been manufacturing oxygen and nitrogen plants at New Delhi with the technology of Ing L. & A. Boschi, Italy as per the designs and drawings. We have skilled and trained technicians at our factory who have been manufacturing air separation plant, oxygen plant, nitrogen plant, liquid nitrogen /oxygen plants and equipment since 1985 under supervision of qualified engineers to meet inter-national specification. Our Company is engaged as manufacturers and suppliers of air separation plant and gas plants in India. We are producing the air separation plants, oxygen plant, nitrogen plant and acetylene plants of latest technology of ING &A BOSCHI,ITA Y who have been the world leader in setting up oxygen/nitrogen/acetylene plants, machine, factory and related machinery since 1930 in Italy along with LINDE Germany. Our oxygen plants factory have been exported to all countries including South Africa, Tanzania, Kenya, Congo, Liberia, Columbia, Congo, Jordan, Libya, UAE, Saudi Arabia, Iraq, Iran, Europe, Italy, Spain, Australia.


Detailed Manufaturing Process

Air Compressor
Step 1: Air Compressor (air supply)

The free saturated air is sucked from atmosphere through a highly efficient dry-
type suction filter into the first stage of the horizontally balanced
opposed, reciprocating air compressor.





Purification of Air
Step 2: Purification of Air (Process Skid)

This consists of purification of the air by removing moisture, oil traces and carbondioxide in the process air. Compressed air is chilled to 12 °C in a chilling unit and evaporation cooler, compressed air passes through the oils of the hilling unit at a temperature of 12 °C to a moisture separator, where the condensed moisture gets removed before entering into Molecular Sieve Battery. Before sending the air to MOLECULAR SIEVE BATTERY, air is passed through an OIL ABSORBER where air becomes oil free. Chilled air passes through the Molecular Sieve Battery consisting of Twin Tower packed with molecular sieves to remove moisture and carbon dioxide present in the air.

Molecular Sieve Battery operates on Twin Tower System, when one tower is under production the other tower is regenerated by passing waste nitrogen gas at 200 °C through a REACTIVATION HEATER .After interval of 8 to 10 hours, the tower under production gets exhausted and regenerated by similar process before use and, thus the cycle continues. Any dust particle gets filtered in the DUST FI TER before air enters the AIR SEPARATION COLUMN All the equipments are mounted on process skid.(See our Catalog)



Step 3: Expander (Expansion Engine)

Expansion Engine

The process air before liquefication in the air separation unit needs to be cooled to temperatures sub-zero (cryogenic). The main portion of the air after the process skid enters the expansion engine through the heat exchanger no.1 after pre-cooling. The temperature of the air drops to around -165degC by the Expander which is a very highly efficient advanced design with Teflon piston rings and completely hydraulic mechanism with leakproof ball valves.

Rest of air at (-80) degC from Heat Exchanger No.1 enters into a highly efficient EXPANSION ENGINE, where the air further gets cooled down to (-150)deg C before entering into bottom column. The liquefied air from both these streams collected at the BOTTOM COLUMN is known as RICH LIQUID.
Note: we also supply plants with TURBO EXPANDERS.


Step 4: Air Separation Unit
After the process skid, the air enters the air separation unit (cold box)where the air converts into liquid air by deep cooling at cryogenic (low temperatures)and is separated into liquid oxygen and nitrogen.

Air Separation UnitChilled, Oil-free and moisture-free air enters into multi-pass HEAT EXCHANGER No.1 where it gets cooled to (-80)degC by cold gained from outgoing waste nitrogen and oxygen. A part of air, this enters a multi-pass HEAT EXCHANGER NO.II or LIQUEFIER made of special alloy tubes. This air cools to (-170)degC before passing through an expansion valve. Due to Joule Thompson Effect after the expansion valve, air gets further cooled down and gets liquefied before entering into Bottom Column .

The RICH LIQUID in the BOTTOM COLUMN enters into feed tray of top column. Similarly the liquid nitrogen called POOR LIQUID enters into top column as a reflux &it takes away the latent heat of condensing oxygen and gets vaporized whereas the liquid oxygen flows down the trays of the TOP COLUMN into the condenser. Liquid Oxygen from CONDENSER passes through a SUB-COOLER to a LIQUID OXYGEN PUMP.

Step 5: Cylinder filling by Liquid Oxygen Pump

Liquid Oxygen passes from the condenser to the cryogenic liquid oxygen pump for filling gas into cylinders.
Consisting of the following:

1. Cryogenic Pump
2. Internal Vaporizer
3. 2 Cylinder Filling Manifold
4. Gas Lines

Pressure upto 155/200 bar

Liquid Oxygen PumpFilling of Oxygen by liquid oxygen pump (oil & water free) ensures:

1. Bone dry Industrial/Medical oxygen
2. Low power consumption
3. Compact
4. Virtually zero maintenance as compared to old type of bulky oxygen compressors
5. No gas holder / balloon required
6. No moisture
7. No rusting in cylinders