Advanced Cryogenic Air Separation Unit for Oxygen and Nitrogen Production

◆◆ Key Applications ◆◆

1. Steel and Metal Industries:

Oxygen for blast furnace enrichment, BOF/EAF steelmaking, and nitrogen for inerting during metal heat treatment.

2. Chemical and Petrochemical Plants:

High-purity nitrogen for blanketing storage tanks and oxygen for oxidation reactions (e.g., ethylene oxide production).

3. Electronics Manufacturing:

Ultra-pure nitrogen (99.9999%) for semiconductor fabrication, soldering, and laser cutting.

4. Medical and Pharmaceutical:

Medical-grade oxygen (≥99.5%) for hospitals and nitrogen for cryopreservation or drug packaging.

5. Energy and Environmental:

Nitrogen for LNG liquefaction and oxygen for clean combustion in gasification or oxy-fuel systems.

◆◆ Technology and Features ◆◆

1. Cryogenic Air Separation Process:

Air Compression and Purification:

• Ambient air is filtered, compressed, and cooled to remove moisture, CO₂, and hydrocarbons via molecular sieves and adsorbent beds.

Liquefaction and Distillation:

• Air is cooled to -185°C in multi-stage heat exchangers, forming a liquid air mixture.

• Separation occurs in a dual-column distillation system:

• High-Pressure Column: Separates nitrogen (lower boiling point) from oxygen-rich liquid.

• Low-Pressure Column: Further refines oxygen and extracts argon (if required).

Product Compression and Storage:

• Gases are compressed, liquefied (for storage), or vaporized based on end-use requirements.

2. Advanced Components:

• Turboexpanders: Recover energy from high-pressure gas streams to reduce power consumption by 25–35%.

• Brazed Aluminum Heat Exchangers (BAHX): Maximize thermal efficiency in cryogenic conditions.

• Vacuum-Insulated Cold Box: Minimizes heat ingress and operational energy loss.

• Automated Control Systems: PLC/SCADA integration enables real-time monitoring of purity, pressure, and flow rates.

3. Energy Efficiency and Sustainability:

• Waste Heat Recovery: Redirects compressor heat to pre-cool incoming air.

• Variable Speed Drives (VSDs): Adjust compressor loads dynamically to match demand, cutting energy waste.

• Low-Emission Design: Reduces greenhouse gas emissions through optimized combustion and gas recycling.

4. Modular and Scalable Architecture:

• Skid-Mounted or Containerized Units: Simplify installation and relocation for remote or temporary sites.

• Scalable Capacity: Ranges from 500–100,000 Nm³/h for oxygen and nitrogen, adaptable to small factories or mega-industrial complexes.

◆◆ Advantages ◆◆

• Ultra-High Purity: Meets ISO 8573, SEMI F73, and USP-NF standards for critical applications.

• Cost Efficiency: Cuts energy consumption by 20–30% compared to conventional ASUs.

• Operational Flexibility: Simultaneously produces liquid and gaseous oxygen/nitrogen for diverse needs.

• Low Maintenance: Corrosion-resistant materials and self-cleaning filters extend service intervals.

• Sustainability: Supports carbon-neutral goals via energy recovery and reduced waste gas venting.

◆◆ Visual Description (Text-Based) ◆◆
The unit typically comprises:

• A multi-story distillation column system housed in a vacuum-insulated cold box.

• Stainless steel piping networks with frost-resistant insulation for cryogenic gas transfer.

• Skid-mounted turboexpanders and compressors for compact, energy-efficient operation.

• Digital control panels with touchscreen interfaces for real-time system analytics.

◆◆ Conclusion ◆◆
The Advanced Cryogenic Air Separation Unit redefines industrial gas production by merging precision cryogenics with smart, sustainable engineering. Its ability to deliver ultra-pure oxygen and nitrogen at scale—while minimizing energy use and environmental impact—makes it indispensable for modern industries. Whether powering steel mills, semiconductor fabs, or medical facilities, this system exemplifies innovation in gas separation technology, driving efficiency and sustainability across global supply chains.

◆◆ RFQ ◆◆

1. Are you the manufacturer of this equipment？

Yes, we are an experienced manufacturer specializing in this field for 25 years

2. Can the system be customized to meet specific requirements？

We provide custom-engineered solutions for different applications.

3. Have your products been deployed in global markets?

Yes, we have successfully supplied our air separation plants to over 50 countries worldwide, complying with international standards like ASME.

4. What after-sales services do you provide?

We offer comprehensive after-sales support including:

✔ Technical Consultation - 24/7 expert guidance

✔ Remote Monitoring - Real-time system performance tracking

✔ Maintenance Packages - Scheduled inspections & consumable replacements

✔ On-site Service -Engineer oversea service available

✔ Spare Parts Supply - Original components with 18-month warranty

✔ Operator Training - Customized programs for client's technical team

5. Do you offer technical support services?

We cordially invite you to visit our manufacturing facility or participate in our online technical exchange seminar for detailed discussions.

We welcome you to reach out to our technical specialists for detailed consultations and customized solutions.