Low Pressure Turbo Series Oxygen-Nitrogen Plants

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Low Pressure Turbo Series Oxygen-Nitrogen Plants

BDM Cryofusion & Mandressi ITALIA is one of the Leading Manufacturers of Industrial Gas Plants, Air Separation Plants with Société Générale de Surveillance (SGS) quality approval and ISO 9001:2000 certification. We are manufacturers of Latest Low Pressure Air Separation Plants of the Brand Cryofusion and Mandressi Italia and employ the latest Low Pressure Turbo Technology Series Industrial Gas Plants and Air Separation Plants of Cryofusion and Mandressi operating at a working pressure of 6 to 8 bar. Our company uses Rotary Screw type Air Compressors of Atlas Copco and a very efficient Air Separation Column (Cold Box) for achieving 99.9% yield to give a waste Nitrogen purity of nitrogen gas at the outlet of the cold box as low as 3 Parts per million.

Turbo Plants

The description of all the processes involved in the operation and working of the Low pressure Turbo Plant is as follows:

1. COMPRESSION OF ATMOSPHERIC AIR BY AIR:

In the first step of operation of the plant air is compressed at a very low pressure of 5-7 bar (kg/cm2) with the help of advance technology trouble free rotary screw compressor.

2. PRE COOLING SYSTEM

The second stage of the process uses a low pressure refrigerant for pre cooling of the processed air to the temperature of around 12 deg C before it enters the purifier.

3. PURIFICATION OF AIR BY PURIFIER:

In the purification unit the air enters a purifier consisting of twin Molecular Sieve drier, which works alternatively. The Molecular Sieves remove the Carbon dioxide & moisture from the processed air before the air enters Air Separation Unit.

4. COOLING OF AIR BY turbo (EXPANDER):

The air has to be cooled to sub zero temperatures for liquification & the cryogenic refrigeration. The cooling is provided by highly efficient turbo expander, which cools the air to temperature almost below (-) 165 to (-) 170 deg Centigrade.

5. SEPARATION IF LIQUID AIR INTO OXYGEN AND NITROGEN BY AIR SEPARATION COLUMN

The air free from oil, moisture and Carbon dioxide now enters into low pressure fin type Heat Exchanger where the air is cooled below sub zero temperatures by air expansion process in the turbo expander.

Air gets liquefied when it enters the air separation column & gets separated into oxygen & nitrogen by the process of rectification.
Oxygen is available at the outlet of the ASU at a purity of 99.6%.

Nitrogen is also available at the outlet as a second product at purity of 99.9% up to 3ppm simultaneously without loss of oxygen product.

6. Compression and filling of Oxygen in cylinders.

The final product in the form compressed Oxygen/Nitrogen goes to the high pressure oxygen cylinders at 150 bar or up to higher as required.

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Turbo Dryer

We manufacture Turbo dryers for oxygen and nitrogen production. These are manufactured with Société Générale de Surveillance (SGS) quality approval and ISO 9001:2000 certification. Turbo dryers delivers very uniformly dried product because material is intermittently redistributed with plug-flow operation. Uniform inside temperature or zoned temperature regions. The closest product temperature control of any dryer possible.

Oxygen Production: -

Oxygen Output (in cu.m/hr): 40 to 1000 cu.m/hr
Oxygen Purity: 99.6%
Oxygen pressure in cylinders: 150 bar(kg/cm2)

Nitrogen Production: -

Nitrogen Pressure out of Column (bar): 5 bar (up to 150 bar optional)
Nitrogen Output (cu. Mtr/hr): 40 to 1000 cu.m/hr
Nitrogen Purity (ppm optional): 99.9% to 99.99% (3ppm opt.)
Nitrogen filling in cylinders (optional): 150 bar (kg/cm2)
Type: Low Pressure
Operational Pressure: 7 bar (kg/cm2)
Operational period: 24 hours continuous
Screw Compressor: Rotary/Screw
Expander: Turbo
Downtime for repair: Very low due to screw compressor and low working Pressure there are no leakages.
Air separation unit: High yield >99%
Exchanger efficiency (plate fin type): Very High
Oxygen & nitrogen production: Simultaneous (no loss of oxygen)
Power: Connected: As per capacity
Consumed: As per Model
Specific power per m3 of oxygen: Up to 0.6 Units Depending upon the Capacity
Specific power per m3 of oxygen + nitrogen (pure): 0.4kwh (units)
Voltage 3 phase**: 380-415 50/60 Hz

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Mr. Bharat
R-19, Hauz Khas Enclave
New Delhi, Delhi - 110 016, India
Telephone: +(91)-(124)-4386230

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