General information and design capacity:
Airflow: 22,800 SCFM; 97 psi; 105°F
Oxygen Gas Production: 250 TPD with 99.5% purity
Nitrogen Gas Production: 4200 SCFM with 10 ppm O2 Purity
Energy Consumption: 151,200 KW-H/day
Water Consumption: 4400 GPM
Capacity- 230 metric tpd GOX (99.5% purity and 450psig pressure) - 200 metric tpd GAN (<10ppm O2 content, 10barg pressure) - 10tpd liquid (LOX/LIN)
- MAC : 7000HP motor, 4160V, 60Hz, 3-phase- O2 Comp : 1750HP motor, 2300V, 60Hz, 3-phase- N2 Comp : 1250HP, 2300V, 60Hz, 3-phase.
The principal components of air (nitrogen, oxygen and argon) can be liquefied when subjected to temperatures as low as -315°F at atmospheric pressure. Such temperatures are commonly employed in low temperature air separation installations.
With air as with other gases and vapors, the condensation (liquefaction) temperature increases when the pressure is raised. However, it is necessary to reduce the temperature of the air below its critical temperature, before it can be liquefied. The separation of the components of a liquid mixture can be obtained by vaporization of the mixture, the more volatile components being driven off from the others. In a similar way, the different boiling points of nitrogen and oxygen make their separation possible by distillation.
The Air Separation is performed by distillation, in two steps:
- The high pressure column produces nitrogen and oxygen enriched liquid.
- The low pressure column separates this liquid into 99.5% pure oxygen and nitrogen.
The refrigeration required by the unit is produced by expansion of nitrogen in a turbine.
Heat exchanger, Control system and Water and process Piping. Lubrication system
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