Liquid Nitrogen/Oxygen Separation Plant: GFED Series 

Nitrogen/Oxygen


Prolific Group is proudly supplying the Cosmodyne GFED Series Air Separation Plants with a capacity range of 4-7 metric tons per day.

There are more than 50 GFED plants currently producing liquid oxygen and nitrogen for Aerospace, medical, industrial, oil field, and military applications in some of the most remote regions of the world.

The GFED series are state-of-the-art modular air separation plants that can be designed as water-cooled or air-cooled. These plants produce high-purity liquid oxygen and liquid nitrogen by cryogenic distillation of atmospheric air. The plants also produce high-purity gaseous oxygen which can be used for future liquefaction or an on-site pipeline. Structurally ideal for emerging markets and remote locations, the GFED plants are simple, energy-efficient, and robust, and have been proven in over 45 locations worldwide.

The comprehensive scope of supply includes three pre-assembled skid-mounted modules and all necessary interconnecting materials. Plant modules include a feed air compressor, air treatment module, and cold box module. The air treatment module contains the air chiller, air purifier with dual bed adsorption system, regeneration/thaw heater, and turbo expander system preassembled into a single module.

The compact, modular design concept simplifies installation, minimizes installation time and cost, and ensures the highest level of overall plant quality. The GFED ALPHA boasts a skid-mounted design that minimizes shipping costs and allows easy maintenance access

ModelGFED 1GFED 2GFED 3
Operating
Mode
MAX
LOX
MAX
LIN
MAX
LOX
MAX
LIN
MAX
LOX
MAX
LIN
Liquid
Nitrogen
Nm3/hr
———
MTPD
0.0
——
0.0
137
——
4.1
0.0
——
0.0
183
——
5.5
0.0
——
0.0
227
——
6.8
Liquid
Oxygen
Nm3/hr
———
MTPD
119
——
4.1
3.0
——
0.1
152
——
5.2
3.0
——
0.1
190
——
6.5
7.0
——
0.2
Total
Liquids
Nm3/hr
———
MTPD
119
——
4.1
140
——
4.2
152
——
5.2
186
——
5.6
190
——
6.5
234
——
7.0
Oxygen
Gas
Nm3/hr
———
MTPD
0.0
——
0.0
28
——
1.0
0.0
——
0.0
39
——
1.4
0.0
——
0.0
79
——
2.7
Product Purity
Oxygen% O299.699.699.6
Nitrogen% N299.999.999.9
Pressure
Nitrogenbarg4.84.84.8
Oxygenbarg0.550.550.55
PowerkW299297366363449447
Specific PowerkWh/Nm³1.512.132.401.952.361.91

NOTES
Performance is based on STP (20 ºC, 50% RH, Sea Level, Cooling water 24 ºC)
Nm³ is measured at 1.0 Atmospheres and 0 ºC
Nitrogen purity to 1ppm O2 in N2 possible
Liquid N2 subcooled to -188ºC
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Advantages:

  • Minimized shipping time and rapid deployment
  • Convenient installation by shipping the plant in three distinct pre-piped and pre-wired modules in two 40-foot shipping containers
  • Easy access to equipment maintenance
  • Producing both LIN / LOX in 1 equipment

Cosmodyne Packaged Plants also offers a balance of scope liquid storage, pumping, and cylinder filling solutions. The innovative, skid-mounted system is engineered for the safe and efficient storage of liquid Oxygen and liquid Nitrogen in low-pressure horizontal tanks. The package facilitates remote process monitoring, automatic pump cool-down and loss of prime protection, inventory control, liquid pump transfers to road tankers, high-pressure pumping and vaporization for cylinder filling, as well as off-specification liquid disposal.

Due to their convenient installation and efficiency, the GFED plants are designed to meet the most severe operating conditions.

Customizable Scope:

  • An interface skid to tie all components together, for one or two tanks, transfer pumping skid, high-pressure pump, HP vaporizer for cylinder filling, and a dump vaporizer
  • 25 /50 /75/100 m³ vacuum + perlite insulated horizontal type storage tank designed to ASME sec. VIII div. I Ed.2010 with “U” stamp certification. PED as an option
  • ACD (Air Liquide Turbo) transfer pumps with VFD controls for road tanker or VIE filling. ACD P2K cylinder-filling pump for cylinder filling features a vertical pump with a dual wrist-pin bearing design, allowing higher rod loading and greater drive-end life. Vacuum jacket at the cold end minimizes the losses
  • Customizable Vaporizers for Customer pipeline backup or HP Cylinder filling requirements
  • A state-of-the-art Siemens PLC Control System with HMI touch-screen Electrical and PLC panels
  • The tank has a pressure build-up coil to allow for pressure decants from the tank if necessary
  • Variable Frequency Drives for transport pumps
  • Insulated Pump suction lines with aluminum weather-proof jacketing
  • Independent liquid feed lines are provided to all pumps, facilitating the separate operation of the Transfer pump and Cylinder Filling pump
  • Interface between the plant PLC and the tank PLC system so that both systems can be viewed from either location
  • The PLC includes automatic cool-down protection, loss of prime on both pumps as well as the tank level and pressure indication
  • HMI screen incorporates a sun shield for easy viewing in bright environments
  • The design includes the safe disposal of liquid from safety and vent valves

For more information, don’t hesitate to contact us here.

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