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KDONAr-8200/8900/280 (620TPD+12TPD)
Project model : KDONAr-8200/8900/280 (620TPD+12TPD)
Location : Qinghai
Year : 2018
Application field : Chemical
ASU specs :
| Operating conditions | Oxygen yield (optional LOX yield) | O2 purity (upgradable) | Gox Pressure | Nitrogen yield (optional LN yield) | Nitrogen purity | Gas Nitrogen Pressure (compressor inlet/outlet) | Argon yield | Argon purity |
| Design | 8200nm3/h or 280TPD （800nm3/h or 27TPD | 99.6%O2 | 8.25 MPa | 8900nm3/h or 265TPD (1600nm3/h or 48TPD) | ≤10PPmO2 | 10kpa /0.9MPa | 280nm3/h or 12TPD | 10kpa /0.9MPa |
| Condition1 | 4300nm3/h or 145TPD (2900nm3/h or 100TPD) | 8900nm3/h or 265TPD | 220nm3/h or 9.5TPD |
Process brief
This process is an internal compression air separation process integrating normal temperature molecular sieve adsorption purification, air pressurization booster, high and low-temperature pressurized turbine expander, full distillation of packed fractionation tower to produce argon. And is one of the most advanced internal compression air separation processes in the world.
Main features :
1. Uses liquid pumps to pressurize liquid oxygen, then converse LOX into GOX in the main heat exchanger.
2. Has a higher outlet pressure at the booster end of the expander so it saves more energy.
3. Has a secondary operating condition so the client has option of more fraction of LOX product.
