Nitrogen

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  PSA Nitrogen Gas Generators 
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Well Proven Pressure Swing Adsorption Technology

More Than 10,000 Units Working Satisfactorily Worldwide
Skid Mounted Pre-commissioned Ready To Use Units
Fully Automatic Plant - Requires No Operator’s Attention
Low Generation Cost - Pay Back Period Less Than A Year
Negligible Maintenance No Hassles of Changing Cylinders
Continuous Purity Check - Purity Up to 99.9999% Achievable
The Technology
Our Nitrogen Generators operates on Pressure Swing Adsorption, commonly known as P S A Technology. P S A Technology is based on the selective adsorption phenomena of gas molecules under pressure on the surface of highly porous and efficient adsorbent, In this case of Nitrogen Generation the Adsorbent is carbon based Molecular Sieve (C.M.S.) In P S A System when compressed air is passed through a adsorption tower field with C.M.S. the molecules of oxygen, moisture & other unwanted gases are adsorbed on surface of C.M.S. and Nitrogen which is not adsorbed by C.M.S. comes out of adsorption tower and is collected in a surge vessel. For continuous generation of nitrogen two Adsorption towers are provided which are interconnected with Auto change over valves controlled by PLC in the control panel. After saturation of one tower with oxygen the process automatically changes over to another tower and thus the nitrogen production is continuous. Our systems are the best ones in industry to ensure the highest efficiency, user friendly design, Reliable Economical and Durable. Our onsite nitrogen generators are custom made and can be adjusted to give the desired nitrogen quality for your process and application
            
Safety Features and Audio Visual Alarms

The Nitrogen Gas Generator are Skid Mounted and Pre-commissioned at our works. Are fully automatic and requires virtually no attention of the Operator. Once started it can be left-unattended. All operations take place automatically and Nitrogen Purity remains very consistent. In case of any abnormality the gas Generator would trip automatically with Audio Visual Alarms for Necessary action.
In case of Storage Tank Getting Filled The Gas Generator Goes to Sleep and restarts Once the pressure in storage Tank is Reduces to set Limit.
Audio Visual alarms in our Standard System
  • Air Compressor Trip
  • Low Feed Air Pressure & High Air Inlet Pressure
  • Low Surge Tank Pressure
  • High & Very High Oxygen Content - 2 Set Limits
  • High Moisture Content (Optional)
  • High Storage Tank Pressure


The System Starts with only three Switches
Control on  - To Energize the Control Panel
System on  - To Start the System or Gas Generator
Nitrogen on - To Start Feeding Nitrogen  to your System
 
Standard Scope of supply
  • Air Intake after cooler, Moisture separator, Prefilter, Auto Drain valve & Wet Air Receiver
  • Twin Tower Desiccant based Air Dryer Fully Automatic with Pneumatically Operated Changeover-Valves ( REF. Dryer - Optional )
  • Dry Air Receiver with Pressure Gauge, Pressure Switch and Candle type After Filter
  • Twin Tower P.S.A. Module with Automatic Pneumatically Operated Changeover valves, Pressure Gauges & Interconnecting Piping
  • Surge Vessel with Instruments & Drain valve
  • C.M.S. ( CARBON MOLECULAR SIEVES )
  • One Charge filled in P.S.A. Adsorption Towers
  • Flow meters for Nitrogen with Flow control valve, Nitrogen Three Way Vent Valve NRV and Back Pressure Controller
  • Centralized control panel with sequence programmer and Fault Indications Lamps
  • Online Oxygen Analyser with settable high oxygen and very high oxygen alarms.
Upstream Equipment for Feed Air
In case the Feed Compressed Air required for Nitrogen Generator is not available from your centralized air supply you will be required to attach the following upstream equipment.
Choose Between Screw or Reciprocating Compressor
Packaged Screw Compressor Air Cooled Lubricated Electrically Operated Silent, complete with integral Instruments & Starter Panel along with oil filters (needs no foundation and is vibration free) OR Oil free Water Cooled Reciprocating Compressor with its Standard Accessories, Electric Motor, Drive Arrangement, Foundation Bolts for Grouting it to Foundation, with Instrument Panel and Separate Motor Starter Panel.
Downstream Equipment for Nitrogen Purification
For Nitrogen required with oxygen content in PPM level following downstream equipments can be added.
1) Palladium based De-Oxo System
2) Copper based De-Oxo System
Allied Equipments / Accessories
  • Ammonia Crackers & Manifolds
  • Gas Purification & Mixing Stations
  • Storage Vessels
  • Gas Analysers

CUSTOM MADE PLANTS OF HIGHER CAPACITIES UPTO 5000 Nm3/Hr OFFERED ON REQUEST.


Models for Onsite Skid Mounted AP P.S.A. Nitrogen Gas Generator

Models

NITROGEN GAS PURITY

98.00%

99.00%

99.50%

99.90%

99.99%

AP-005

8

6

5 3 1.7

AP-010

16 12 10 6 3.3
AP-015 24 18 15 9 5.0
AP-020 32 24 20 12 6.7
AP-025 41 30 25 15 8.3
AP-030 49 36 30 18 10
AP-040 65 48 40 24 13
AP-050 81 60 50 30 17
AP-060 97 72 60 36 20
AP-075 122 90 75 45 25
AP-100 162 120 100 60 33
AP-125 203 150 125 75 42
AP-150 243 180 150 90 50
AP-175 284 210 175 105 58
AP-200 324 240 200 120 67
AP-250 405 300 250 150 83
AP-300 486 360 300 180 100
AP-400 649 480 400 240 133
AP-500 811 600 500 300 167
AP-1000 1620 1200 1000 600 335
NIT/AIR RATIO 45% 38% 34% 25% 18%

Note : The Figures above are capacity ( in Nm3/hr ) of Nitrogen Generated at Various Purity.

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