Cryogenic Air Separation Units
Premium Engineering offers a wide model range of cryogenic ASUs.
| Specification of standard cryogenic ASUs | |||
| Oxygen | Nitrogen | Argon | |
| Capacity | up to 70,000 nm3/h | up to 200,000 nm3/h | up to 2,500 nm3/h |
| Purity | up to 99.9% vol.О2 | up to 0.0001% vol.О2 |
up to 0.0001% vol.О2 up to 0.0001% vol.N2 |
The ASUs are designed using the latest innovative technologies which not only provide high energy efficiency but also give the user the option of various operating modes within the framework of one ASU. All our ASUs can be adapted to specific industrial application, according to the customer’s requirements.
Advantages of the cryogenic ASUs
| ASUs produce gases with the lowest possible content of impurities (special purity products). |
О2 – 99,5…99,9% N2 – 99,9995% Ar – 99,9995% |
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ASUs can produce several gases simultaneously (this is known as complex separation). Cryogenic ASUs offer the customer a choice between gas and liquid output. Implementation of various operating modes within the framework of one ASU with a wide range of product specification. |
О2+N2 O2+Ar О2+N2+Ar gas liquid gas + liquid |
| ASUs consume comparatively less power while producing high purity products | |
| Long operation period between two warms-up | up to 2 years |
| High reliability, long service life | up to 25 years |
Cryogenic cycles
ASUs implement highly efficient cryogenic cycles, such as LP cycles with an expander, «two-pressure» cycles, and cycles with an independent circulation loop. Also, they use the boosting of the flow in the booster part of the turboexpander to increase the cooling capacity of the cycle without any additional power consumption. The pressures of the cycle are optimized owing to the thermodynamic efficiency of the process and the availability of the most efficient and reliable equipment, including compressors.
