N2 PSA System

GSA's N2 PSA system features simple system and is easy to maintain

GSA’s has a wide variety of gas generators and purifiers

GNG N2 PSA Series

Why N2 Generator?

itrogen is an odorless and colorless gas used as a key ingredient of fertilizer. Liquefied nitrogen is also used for quick freezing in regeneration technology, medicine and research. Unlike oxygen, nitrogen does not have any reactivity so that it is one of the most commonly used industrial gases.
Nitrogen is leased or provided by a third party through a nitrogen tank or small high-pressure container or internally produced and used, using compressed air. GSA N2 Generator adopting pressure swing adsorption (PSA) technology is the best choice to use high-quality nitrogen anytime in a stable fashion at the lowest costs.

Applications

• Electricity and electronics

• Food and beverage packaging

• Pharmaceuticals

• Chemical processing

• Power plant

• Laboratory

• Heat treatment

• Blazing

• Fire prevention

• Oil refining

• Metal working

• Laser cutting

Positive Effect

save money
  • Installed on the site and immediately produces nitrogen from compressed air
  • No production setbacks from an issue in nitrogen refill, delivery or supply
  • Reduction of operating and maintenance costs
  • Able to design diverse purity according to customer needs (95% to 99.999%)

N2 Generator

pressure swing adsorption

The N2 generator is operated under the following mechanism: Nitrogen is supplied by separating oxygen from compressed air, using desiccants filled in two absorption towers.

Compressed air including both nitrogen and oxygen supplies nitrogen by adsorbing oxygen while passing through a carbon molecular sieve (CMS) layer which has micro pores filled in the absorption towers.

The two absorption towers repeat pressurizing, absorption, depressurizing and cleaning by taking turns and supply nitrogen consecutively.
GSA’s pressure swing adsorption (PSA)-based N2 generator has a specially designed distributor at the bottom of the absorption towers so that it is able to supply high-quality nitrogen which meets customer needs in a continuous and stable manner. In addition, the use of durable valves enables stable operation. Since diverse features needed to control the system are supported, settings and operations which meet user needs are enabled.

N2 Generator with Diverse Features

n2 psa system feature

  1. PRESS. SAFETY VALVE

    Guarantees system stability with KOSHA-certified safety valves

  2. Reliable AUTO Valve

    Guarantees stable operations even under frequent use with proven angle-sheet valves

  3. High-quality Desiccant

    Supplies Nitrogen in a stable fashion, using high-quality carbon molecular sieve(CMS)

  4. Precision Orifice

    Minimizes flow rates for regeneration, using a precision orific

  5. Control Panel

    Enables stable and precise control, using PLC and touchscreen

  6. High-quality Measuring Instruments

    Low failure rates and great operating performances with high-quality measuring instruments such as a pressure gauge

  7. Activated Alumina

    Activated alumina added to the bottom, ensuring stable performances

  8. High-quality Muffler

    Minimizes noise which occurs during purge with Allied Witan or an optimally designed muffler

  9. Distributor for Stable Purity

    Installs a distributor to prevent drifting inside a large absorption towers and ensure stable purity

Technical Specification

Nitrogen Capacity (Nm³/h)
95%
(1.5N)		 9.3 16.2 23.6 37.9 55.0 67.4 82.7 100.4 145.8 228.5 301.5 409.3 479.8 648.3
97%
(1.7N)		 8.6 14.9 21.7 34.9 50.7 62.1 76.1 92.5 134.2 210.4 277.5 376.8 441.7 596.8
98%
(1.8N)		 8.1 14.2 20.7 33.2 48.3 59.1 72.4 88.0 127.6 200.14 264.0 358.4 420.1 567.7
99%
(2N)		 7.4 12.9 18.8 30.2 43.9 53.7 65.9 80.0 116.1 182.0 240.1 326.0 382.1 516.3
99.5%
(2.5N)		 6.7 11.7 17.1 27.5 40.0 48.9 60.0 72.9 105.8 165.8 218.7 297.0 348.1 470.4
99.90%
(3N)		 5.4 9.5 13.8 22.1 32.2 39.4 48.4 58.7 85.2 133.6 176.3 239.4 280.6 379.1
99.95%
(3.5N)		 4.6 8.0 11.6 18.6 27.0 33.1 40.6 49.3 71.5 112.2 147.9 200.9 235.5 318.2
99.99%
(4N)		 3.8 6.7 9.7 15.6 22.7 27.7 34.0 41.3 60.0 94.1 124.1 168.5 197.5 266.8
99.999%
(5N)		 2.6 4.6 6.7 10.8 15.7 19.2 23.5 28.6 41.5 65.1 85.9 116.6 136.7 184.7
Dimensions (mm)
L 2,200 2,600 2,800 3,000 3,500 3,600 3,700 3,800 4,100 4,900 5,300 6,000 6,200 6,400
W 1,300 1,450 1,750 2,100 2,300 2,450 2,450 2,550 2,700 3,300 3,600 4,100 4,400 4,600
H 2,050 2,050 2,050 2,100 2,100 2,100 2,300 2,350 2,650 2,700 2,800 3,200 3,250 3,300
Required Compressed Air (Nm³/h)
Capa. 19 33 48 77 112 137 168 204 296 464 612 831 974 1,316

Design Conditions

  • Inlet Air Press. : 7.0 barg
  • Inlet Air Temp. : 5 ℃ ~ 45 ℃
  • Ambient Temp. : 20 ℃
  • Inlet Air Quality : ISO8573-1 class 1-4-1
  • Unit Performance : ±5%

References

  • Models under membrane type as well as PSA are also customizable.
  • Models under ASME in addition to KS are also customizable.
  • Large models bigger than those stated in the specifications above are also customizable.
  • The specifications are subject to changes without notice for product improvement.

Nomenclature

GNG nomenclature

Components

standard system configuration

  1. Air Compressor

  2. Air Receiver Tank

  3. Air Filter

  4. After-cooler

  5. Air Filter

  1. Ref. Air Dryer or Cooler

  2. Desiccant Air Dryer

  3. Air Filter

  4. Nitrogen Generator with N2 Holder

Certification mark
GSA logo Since 1993

Gas Equipment

Inquiry
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Atmospheric pressure desorption type

  • Process
total solution provider for airgas
샘플이미지 1
Nitrogen PSA Process diagram
샘플이미지 2
N2 PSA Process diagram
샘플이미지 3
  • Features
    - Easy maintenance
    - Simple system
    - Low initial investment cost
    - Purity : 95%~99.999% (95%~99.9% range is most economical)
    - Capacity : max. 2000Nm³/h
    - High recovery at low purity
    - Less energy consumption at low purity
    - Small installation space

Vacuum desorption type N2-VSA

  • Process
Nitrogen PSA Process diagram
  • Features
    - Easy maintenance
    - Simple system
    - Low initial investment cost
    - Purity : 95%~99.999% (95%~99.9% range is most economical)
    - Capacity : max. 2000Nm³/h
    - High recovery at low purity
    - Less energy consumption at low purity
    - Small installation space

Application

  • Sealing of noble gases
    - Sealing and transportation of explosive or inflammable substances
  • Purge
    - Purging of tanks, pipes, etc.
  • Heat treatment
    - Adjustment of atmospheric condition for bright hardening, bright annealing, carburizing, nitriding, tempering, etc.
  • Atmospheric control
    - Tire filling, CA(controlled atmosphere) storage, prevention of oxidation of edible oil, etc.
  • Food packing
    - Tea, instant coffee, cookies, etc.
  • Manufacturing of semiconductors, electronic parts, etc.
  • Reflow furnace