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PSA PLANTS
PSA Oxygen/Nitrogen generator utilizes zeolite molecular sieve as Adsorbent and produces Oxygen/Nitrogen 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. PLC controls the pneumatic valve to realize two towers for alternate adsorption and desorption as per pressure change for carrying out oxygen/nitrogen separation and produces nitrogen with desired purity.
In the PSA Oxygen/Nitrogen plants the production of Nitrogen gas from the Atmospheric Air is based on Pressure Swing Adsorption (PSA) principle by adsorption of oxygen gas using a special grade of imported Carbon Molecular Sieves (CMS). |
SALIENT FEATURES
 | - Fast and Easy Start up
- Low Power Consumption
- Compact Body
- Production attained within 15 minutes
- Fully Automatic Operation
- Digital Flow Meters
- Digital Purity Analyzers
- Touch Screen Panel
- Continuous Supply
- Safe and Convenient
- Customized Requirements
- Easy Installation and Usage
- Cost Effective
- High Reliability High Molecular Sieves Life
- Adjustable
- Less Space Required
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PROCESS DESCRIPTION
| STEP I: - In the first molecular bed, compressed air is fed in which nitrogen is trapped and oxygen flows out.
STEP II: - When the first bed is filled with nitrogen, air flows into the second bed.
STEP III: - When the second bed separates oxygen from nitrogen, nitrogen is vented out in the atmosphere in the first bed.
STEP IV: - Again the compressed air flow in to the first bed, the process continues and there is a constant flow of oxygen.
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PLANT LAYOUT AND APPLICATIONS
| Applications:
- Water Process
- Ferrous Metallurgy
- Non-ferrous Metal Refinery
- Coal mines
- Pharmacy
- Others: Chemical industry production, solid garbage burning, concrete production, glass manufacturing, medical oxygen, etc.
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TECHNICAL SPECIFICATION
| PSA - High Purity Oxygen Generator | PLANT MODEL | CAPACITY (cu.m per Hr.) | PURITY(%) | CYLINDER FILLING/DAY | | DM- HG 2 | 2 m3 | 95-98% | 8 | | BDM-HG 4 | 4 m3 | 95-98% | 16 | | BDM-HG 6 | 6 m3 | 95-98% | 24 | | BDM-HG 10 | 10 m3 | 95-98% | 40 | | BDM-HG 15 | 15 m3 | 95-98% | 60 | | BDM-HG 20 | 20 m3 | 95-98% | 80 | | BDM-HG 25 | 25 m3 | 95-98% | 100 | | BDM-HG 35 | 35 m3 | 95-98% | 140 | | BDM-HG 40 | 40 m3 | 95-98% | 160 | | BDM-HG 50 | 50 m3 | 95-98% | 200 |
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TECHNICAL SPECIFICATION
| | PLANT MODEL | CAPACITY (cu.m/per Hr.) | PURITY(%) | CYLINDER FILLING/DAY | | BDM-OG 2 | 2 m3 | 93-95% | 8 | | BDM-OG 4 | 4 m3 | 93-95% | 16 | | BDM-OG 6 | 6 m3 | 93-95% | 24 | | BDM-OG 10 | 10 m3 | 93-95% | 40 | | BDM-OG 15 | 15 m3 | 93-95% | 60 | | BDM-OG 20 | 20 m3 | 93-95% | 80 | | BDM-OG 25 | 25 m3 | 93-95% | 100 | | BDM-OG 35 | 35 m3 | 93-95% | 140 | | BDM-OG 40 | 40 m3 | 93-95% | 160 | | BDM-OG 50 | 50 m3 | 93-95% | 200 | Note : PSA Generator Plants are also available for Purity of 95-98%
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SCOPE OF SUPLY
| • Air Compressor
This is a multi stage, heavy duty water-cooled air compressor for 24 hours operation, horizontal type complete with fly wheel inter cooler, foundation bolts, motor pulley, motor, v belt, guard and slide rails. This is used to compress atmospheric air.
• Air Purifier / Process Skid:
This consists of the following Parts:
1) After cooler with tank
2) Nitrogen cooler with tank
3) Moisture separators
4) Chilling units with Freon unit
5) Oil absorber filled with alumina
6) Molecular sieve batteries on skid
7) Defrost heaters
8) Gas/Air/water line as per standard layout on skid /platform prefabricated and ready for installation
9) Water pump
10) Inlet & outlet water lines
11) Drain manifold complete with ball valves for draining moisture. All the above equipments are properly mounted on skid /platform complete with interconnecting piping and ready for installation.
• Expansion Engine
Complete with branded motor/starter of Siemens / ABB world class quality. Expansion Engine is complete with hydraulic valve control, bursting disc for safety, complete with fly wheel pressure gauge, motor pulley V belt, Belt guard, slide rails inter connected pipes (inlet and outlet).
• Air Separation Column - Cold Box
This consist of the complete cold box (outer steel casing) complete with top column, bottom column, condenser, sub-cooler, re-boiler, exchanger 1, exchanger 2, control panel, instruments, pressure gauges, digital automatic temperature scanner withpt-100 sensors, expansion valves, analysis valves, inlet & outlet, air oxygen and nitrogen, gas lines with control valves neatly mounted and firmly fixed on the cold box.
STAINLESS STEEL IS REQUIRED FOR HOSPITAL OXYGEN, FOOD GRADE QUALITY AND ALSO TO MAKE EXPLOSION PROOF.
NOTE: OLD TYPE OF COPPER VESSELS/COLUMNS/TRAYS LIKE CHINESE AND LOCAL TYPE DISCONTINUED 10 YEARS BACK.
• Liquid Oxygen Pump
Horizontal single acting pump with Piston, Piston Rings - oil free - Teflon with guide ring, Safety Devices, Non-Return Valves, Motor with Pulley, V-Belts, Belt Guard, Inter Connecting Pipes with ducting to cold box suitable for filling Oxygen.
• High Pressure Filling Manifold
For filling high-pressure Oxygen to Cylinders. It consists of main High Pressure Isolation Valve and Pigtail filling connection with individual regulation Valve with Pressure Gauge and Safety Relief Valve.
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