Design case:
Product | Output,Nm3/h | Purity % | Pressure at cold box outlet/Temperature Mpa/(℃) | Pressure at Battery outlet/Temperature Mpa/(℃) |
Gaseous Oxygen | 28,000 | 99.6% O2 | 0.015/24.9 | 3.0/≤42 |
Liquid Oxygen | 300 | 99.6% O2 | 0.15/-181.7 | - |
Gaseous Nitrogen | 28,000 | ≤5ppm O2 | 0.007/24.9 | - |
Liquid Nitrogen | 100 | ≤5ppm O2 | 0.2/-193 | - |
Pressure Nitrogen | 600 | ≤5ppm O2 | 0.434/24.9 | As sealing gas for oxygen compressor |
Liquid Argon | 1,000 | ≤5ppm O2+N2 | 0.16/-183.8 |
Note: Nm3/h means at the condition of 0℃, 1.013bar(A)
Liquid product Nm3/h data refers its gaseous state transferred
Continuous operation period between two defrost≥2 years
Time required for defrost~36 hours
Time required for start-up (from the start-up of expander to attainment of oxygen purity)
~36 hours
The instrument air need to be provided by user during start-up, will be provided by ASU itself when running.
Utility Consumption List see next page.
Unit power consumption(without oxygen compression)0.384Kwh/Nm3 O2 ±4%
{28000+(300+100+1000)X3}/12365=0.384
Unit power consumption (with oxygen compression) 0.555Kwh/Nm3 O2 ±4%
{28000+(300+100+1000)X3}/17865=0.555
Note: -Power refers to shaft power as per primary design
- Liquid product output taken as 3 time gaseous output for calculation
- Electrical heaters for oil lubrication system, oil pumps and smoke fan motor for oxygen compressor as well as turbo expander are not included.
- Final figures depend on final design of the Air Separation plant and the compressors chosen after final design.
We can design, manufacture and complete air separation plant according to end users' climatic, geologic and water quality conditions, as well as their different purity and quantity requirements for oxygen, nitrogen and argon. We have the capability to design and fabricate air separation plant with capacity from 10,000Nm3/h to 100,000Nm3/h.