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Cryogenic Air Separation Plant China Suppliers | Factory High-Purity N2 O2 Ar Production, Energy Efficient, Modular Design
I. Small Cryogenic Air Separation Unit — Technical Specifications
| Model | KDON-50/50 | KDON-80/160 | KDON-180/300 | KDON-260/500 | KDON-350/700 | KDON-550/1000 |
|---|---|---|---|---|---|---|
| O₂ Output Nm³/h | 50 | 80 | 180 | 260 | 350 | 550 |
| O₂ Purity %O₂ | ≥99.6 | ≥99.6 | ≥99.6 | ≥99.6 | ≥99.6 | ≥99.6 |
| N₂ Output Nm³/h | 50 | 160 | 300 | 500 | 700 | 1000 |
| N₂ Purity ppm O₂ | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 |
| Unit Energy KWh/Nm³O₂ | ≤1.3 | <0.85 | ≤0.68 | ≤0.65 | ≤0.65 | ≤0.65 |
| Footprint m² | 145 | 150 | 160 | 180 | 250 | 420 |
II. High-Purity Nitrogen (Cryogenic) Unit — Technical Specifications
| Model | KDN-200 | KDN-300 | KDN-400 | KDN-700 | KDN-1000 | KDN-1600 |
|---|---|---|---|---|---|---|
| N₂ Output Nm³/h | 200 | 300 | 400 | 700 | 1000 | 1600 |
| N₂ Purity ppm O₂ | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 |
| LN₂ Output L/h | / | 10 | 10 | 20 | 40 | 60 |
| N₂ Pressure MPa | 0.34~1 | 0.34~1 | 0.34~1 | 0.34~1 | 0.34~1 | 0.34~1 |
| Footprint m² | 95 | 150 | 220 | 260 | 300 | 320 |
III. Liquid Cryogenic / Liquefaction Unit — Technical Specifications
| Model | KDO-180y | KDO-250y | KDO-400y | KDON-1200y/300y | KDONAr-1300y/200y/40y |
|---|---|---|---|---|---|
| LO₂ Output Nm³/h | 180 | 400 | 400 | 1200 | 1300 |
| LO₂ Purity % | ≥99.6 | ≥99.6 | ≥99.6 | ≥99.6 | ≥99.6 |
| LO₂ Pressure MPa | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| LN₂ Output Nm³/h | — | — | — | 300 | 200 |
| LN₂ Purity PPm O₂ | — | — | — | ≤5 | ≤5 |
| LN₂ Pressure MPa | — | — | — | 0.5 | 0.5 |
| LAr Output Nm³/h | — | — | — | — | 40 |
| LAr Purity | — | — | — | — | ≤1.5ppm O₂+4ppm N₂ |
| LAr Pressure MPa | — | — | — | — | 0.2 |
| Footprint m² | 250 | 300 | 350 | 850 | 4000 |
IV. Physical Properties of Air Components (Table 1) — Composition
| Component | Symbol | Volume Fraction % | Weight Fraction % |
|---|---|---|---|
| Nitrogen | N₂ | 78.084 | 75.5 |
| Oxygen | O₂ | 20.95 | 23.1 |
| Argon | Ar | 0.932 | 1.29 |
| Carbon Dioxide | CO₂ | 0.035 | 0.05 |
| Helium | He | 0.00046 | 0.00006 |
| Neon | Ne | 0.0016 | 0.0011 |
| Krypton | Kr | 0.00011 | 0.00032 |
| Xenon | Xe | 0.000008 | 0.00004 |
V. Physical Properties of Air Components (Table 2) — Physical Data
| Component | Symbol | Boiling Pt. ℃ | Melting Pt. ℃ | Gas Density Kg/m³ | Liquid Density Kg/L | Critical Temp. ℃ | Critical Pressure MPa(G) |
|---|---|---|---|---|---|---|---|
| Nitrogen | N₂ | -195.8 | -209.86 | 1.2506 | 0.81 | -147 | 3.45 |
| Oxygen | O₂ | -183 | -218.4 | 1.4289 | 1.14 | -119 | 5.13 |
| Argon | Ar | -185.7 | -189.2 | 1.784 | 1.4 | -122 | 4.959 |
| Helium | He | -268.9 | -272.55 | 0.18 | 0.125 | -267.7 | 0.2335 |
| Neon | Ne | -246.1 | -248.6 | 0.748 | 1.204 | -228.7 | 2.813 |
| Krypton | Kr | -153.2 | -157.2 | 1.735 | 2.155 | -63.7 | 5.6 |
| Xenon | Xe | -108 | -111.8 | 1.664 | 3.52 | 16.6 | 6.01 |
Frequently Asked Questions (FAQ)
What is the oxygen purity standard for Small Cryogenic Air Separation Units?
All models of our Small Cryogenic Air Separation Units (from KDON-50/50 to KDON-550/1000) produce oxygen with a purity level of ≥99.6% O₂, meeting high industrial and medical specifications.
What is the nitrogen purity level for High-Purity Nitrogen Units?
The KDN series High-Purity Nitrogen (Cryogenic) Units guarantee an oxygen content of ≤3 ppm O₂, ensuring ultra-high purity nitrogen output suitable for electronics, chemical processing, and packaging industries.
Can Liquid Cryogenic Units produce liquid argon?
Yes, specific liquefaction models such as the KDONAr-1300y/200y/40y are designed to produce Liquid Argon (LAr) with a purity level of ≤1.5ppm O₂ + 4ppm N₂ at a rate of 40 Nm³/h.
What are the primary boiling points of main air components?
Based on physical properties data, Nitrogen (N₂) has a boiling point of -195.8 ℃, Oxygen (O₂) has a boiling point of -183 ℃, and Argon (Ar) boils at -185.7 ℃. These differing boiling points facilitate separation via cryogenic distillation.
How much space is required to install these cryogenic units?
The footprint depends on the unit type and capacity. High-purity nitrogen units require between 95 m² to 320 m², small gaseous air separation units require 145 m² to 420 m², while larger liquid liquefaction plants can require up to 4000 m².
