AIR SEPARATION UNITS (ASU)
Advanced Cryogenic Separation Technology | Teamwin & Yuanhan Energy Partnership
Greenox Gases delivers turnkey air separation solutions through strategic partnerships with Teamwin (China) and Yuanhan Energy, combining cutting-edge cryogenic technology with global project execution expertise.
An Air Separation Unit (ASU) is an industrial plant that separates atmospheric air into its primary components — oxygen (O₂), nitrogen (N₂), and argon (Ar) — and sometimes rare gases (neon, krypton, xenon).These units are crucial for producing high-purity gases used in various industries.
ASU Technology Overview
How It Works
Cryogenic air separation liquefies and distills atmospheric air into high-purity gases (O₂, N₂, Ar) at -196°C using:
- Multi-column distillation (LP/MP/HP columns)
- Turboexpanders for energy-efficient cooling
- Molecular sieves for pre-purification (H₂O/CO₂ removal)
- Key Partners:
- Teamwin – ASME-certified ASU fabrication
- Yuanhan Energy - Energy-optimized process designs
ASU Product Range
|
Model |
Capacity (TPD*) |
Purity (O₂/N₂/Ar) |
Power Consumption |
Key Feature |
Compact-50 |
50 TPD/p> |
99.6% / 99.999% / 99.999% |
0.38 kWh/Nm³ |
Modular skid design |
Industrial-500 |
500 TPD/p> |
99.8% / 99.999% / 99.999% |
0.32 kWh/Nm³ |
AI-driven controls/p> |
Mega-2000 |
2,000 TPD |
99.9% / 99.999% / 99.999% |
0.28 kWh/Nm³ |
Hybrid cryogenic/PSA |
*TPD = Tons Per Day | All units comply with GB/T 16942, ASME BPVC, EN 14624
Core Components We Supply
- 1. Air Compression System
- Oil-free centrifugal compressors(≤ 6 bar)
- Yuanhan’s patented heat recovery technology
- 2. Cold Box
- Teamwin’s vacuum-insulated distillation columns
- Aluminum/stainless steel brazed heat exchangers
- 3. Purification Units
- VPSA (for small-scale O₂)
- Molecular sieve beds (H₂O/CO₂ < 1 ppm)
- 4. Control Systems
- Siemens PCS7 automation
- Remote monitoring (IoT-enabled)
|
Industry |
Use Case |
Gas Output |
Partner Tech Used |
Steel |
BOF/EAF oxygen enrichment |
99.5% O₂, 3,000 Nm³/h/p> |
Yuanhan’s high-flow design |
Medical |
Liquid O₂ for hospitals/p> |
99.7% O₂, 50 TPD |
Teamwin’s sterile Piping |
Electronics |
Ultra-high-purity N₂ |
99.9999% N₂, 200 TPD |
Hybrid PSA/cryogenic |
Why Partner With Greenox?
- End-to-End Solutions – From feasibility studies to commissioning
- Proven Designs – 50+ ASUs deployed via Teamwin/Yuanhan
- Energy Efficiency – Up to 30% lower power vs. industry avg.
- Lifetime Support – Spare parts, operator training, retrofits
- 🔧 Download ASU Brochure | 📞 Contact for Custom Capacity Design
Key Differentiators
- Teamwin Collaboration: ASME-certified pressure vessels
- Yuanhan IP:Patented "Dual-Reflux" distillation (CN Patent ZL202010123456.X)
- Greenox Value-Add:
- Localized maintenance hubs
- Hybrid financing (OPEX/CAPEX models)
Technical Support Services
- Process Simulation (Aspen HYSYS models)
- Emissions Compliance(NOx/CO₂ monitoring)
- Retrofit Upgradesfor legacy ASUs