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Large Liquid Air Separation Plant
Description
Technical Parameters
As a world-class air separation unit (ASU) manufacturer, NEWTEK's production capacity far exceeds that of small and medium-sized plants:
●Oxygen/Nitrogen Production: Typically 10,000 to 100,000+ Nm³/h (gaseous) or 50-500+ TPD (liquid), with some very large plants achieving even higher outputs.
●Product Flexibility: Simultaneous production of liquid oxygen (LO₂), liquid nitrogen (LN₂), and liquid argon (LAr) is possible. Liquid products can be stored in cryogenic tanks for long-term bulk storage and long-distance transportation, while gaseous products can be supplied directly to on-site pipelines for immediate use.
●Purity Standards: Meets stringent industrial requirements: Liquid oxygen purity reaches up to 99.995%, liquid nitrogen purity reaches up to 99.9999%, and liquid argon purity reaches up to 99.999%-suitable for industries with extremely high purity requirements (e.g., semiconductors and aerospace).
Large Liquid Air Separation Plant Working Principle
Air Pretreatment
Ambient air is filtered to remove dust, moisture, and CO₂ (via adsorbers) to avoid equipment blockage or corrosion.
High-Pressure Compression
Clean air is compressed by multi-stage centrifugal compressors (with load adjustment) to high pressure, laying the groundwork for cooling.
Cryogenic Cooling
Compressed air is cooled via heat exchangers and expanded through turbines to generate cold energy, lowering the temperature to ~-180°C to -196°C .
Distillation Separation
Cooled air enters a large-scale double/triple distillation column system – based on boiling point differences , components are separated: nitrogen rises and is liquefied, oxygen accumulates at the column bottom as liquid, and argon is extracted from the middle section .
Technical Advantages for Large-Scale Use
Free consultation with our technical experts:+8619906611480
High Energy Efficiency: Equipped with cold energy recycling systems (using waste nitrogen to pre-cool incoming air) and variable-frequency compressors, reducing energy consumption by 10–20% compared to small units – critical for lowering long-term operational costs of large facilities.
Stable & Continuous Operation: Adopts redundant design (e.g., backup compressors, dual heat exchangers) and intelligent monitoring systems (real-time tracking of pressure, temperature, purity) to ensure 24/7 stable output, minimizing downtime (annual availability rate ≥98%).
Scalability & Customization: Can be tailored to user demand – e.g., adjusting the ratio of liquid/gaseous products, adding argon separation modules, or expanding capacity via modular design to adapt to future production growth.
FAQ
1.What's the output range of this plant, and can it meet ultra-large industrial demand?
Gas production capacity 10,000–100,000+ Nm³/h, liquid production 50–500+ TPD; ultra-large models can reach even higher rates, fully adapting to massive continuous demand.
2.Does it achieve the high purity required for semiconductors and aerospace?
Yes-liquid oxygen up to 99.995%, liquid nitrogen up to 99.9999%, liquid argon up to 99.999%, meeting ultra-high purity needs of these sectors.
3. How does it reduce energy consumption to lower operational costs?
It has cold energy recycling (via waste nitrogen) and variable-frequency compressors, cutting energy use by 10–20% vs small units.
4.Can it be customized according to different product ratio or capacity needs?
Absolutely-supports adjusting liquid/gaseous product ratio, adding argon separation modules, and modular capacity expansion for future growth.
5. What guarantees stable long-term operation, and is after-sales support available?
Redundant design (backup compressors, dual heat exchangers) and intelligent monitoring ensure ≥98% annual availability; full after-sales (maintenance, troubleshooting) is provided.
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