Internal Compression Process Air Separation Equipment
Product Summary
Internal Compression Process Air Separation Equipment is designed to supply high-pressure gaseous oxygen directly from the cold box. By leveraging high-pressure liquid oxygen pumping and internal vaporization, this design eliminates external oxygen compressors, delivering up to 10 MPa oxygen pressure with higher operational safety.
Key Engineering Values
Reduced OPEX & Maintenance: Liquid oxygen pumping consumes considerably less energy than high-power gas compression, cutting long-term electricity and maintenance expenses.
Intrinsic Plant Safety: Removing external high-pressure gas compressors eliminates direct mechanical ignition risks in high-purity oxygen environments.
Direct High-Pressure Supply: Delivers 4.0 to 10.0 MPa gaseous oxygen straight to downstream reactors or gasifiers without secondary booster systems.
24/7 Continuous Reliability: Built for 8,000+ hours of uninterrupted annual operation with extended overhaul intervals.
Target Applications
Coal Gasification & Coal-to-Chemicals
Synthetic Ammonia & Methanol Production
Petrochemical & Refining Complexes
Metallurgy & Blast Furnace Oxygen Injection
Integrated Gasification Combined Cycle (IGCC)
Industrial Gas Utilities & Chemical Parks
Parameter
|
Oxygen production |
oxygen purity |
oxygen pressure |
Final pressure of oxygen |
Nitrogen products |
Liquid oxygen/liquid nitrogen production |
Unit oxygen consumption |
|
10,000–120,000 Nm³/h |
≥ 99.6% (industrial grade) |
4.0 –10.0 MPa(G) |
0.8-3.0 MPa (G) or higher |
Purity≤5 ppm O ₂ |
Up to 1% of oxygen production can be achieved |
Approximately 0.40-0.50 kWh/Nm ³ at 4.0MPa oxygen |
(For reference only)
Customized Engineering Specifications & Capabilities
|
Technical Parameter |
Standard & Customizable Options |
|
Gaseous Oxygen Capacity |
5,000 – 120,000+ Nm³/h |
|
Oxygen Output Pressure |
4.0 – 10.0 MPa (Internal Compression) |
|
Oxygen Purity |
99.6% (Standard) / 99.8% (High-Purity) |
|
Co-Product Yields |
High-Purity GAN, LOX, LIN, LAr |
|
Control System & Automation |
Siemens / ABB / Yokogawa DCS |
|
International Standards |
ASME Sec. VIII, CE-PED, GB, ISO |
|
Utilities & Drives |
Steam turbine / Electric motor drive |
Step-by-Step Customization Process
Requirement Submission
You provide required capacity, discharge pressure, purity, and site utility conditions.
Custom Engineering & Quotation
Our engineers calculate process mass-energy balance and deliver a tailored technical proposal and budget estimate.
Technical Clarification & Contract
We finalize process P&ID, plant layout, interface boundaries, and commercial terms.
Custom Fabrication & Assembly
Equipment is manufactured, integrated, and factory-tested strictly according to your specified project standards.
Site Installation & Commissioning
On-site installation supervision, system purging, cold trial run, and performance acceptance test.
Quality Assurance & Standards
Certified pressure vessel welding and 100% non-destructive testing (NDT).
Cryogenic leak detection (Helium mass spectrometer) before shipment.
Complete factory cold-box module integration to minimize site installation time.
Full traceabilty for all critical pressure-bearing components.
Global Logistics & Lifecycle Support
Export-grade specialized modular packaging for oversized cryogenic cold boxes.
On-site supervision by senior installation and commissioning engineers.
Operational training for site engineers and 24/7 remote technical assistance.
Long-term spare parts supply and preventive maintenance lifecycle support.
FAQ
Q: What pressure range can this internal compression system achieve?
A: Gaseous oxygen can be delivered directly from the system at pressures ranging from 4.0 MPa to 10.0 MPa, tailored to your downstream process requirements.
Q: How does internal compression reduce operating costs compared to external compression?
A: Pressurizing liquid oxygen via a cryogenic pump requires substantially less power than compressing high-volume gaseous oxygen with a mechanical compressor. This significantly lowers electricity consumption and avoids costly maintenance of specialized oxygen gas compressors.
Q: Can this unit simultaneously produce high-purity nitrogen and liquid co-products?
A: Yes. The system can be configured to produce high-purity nitrogen gas, as well as liquid oxygen (LOX), liquid nitrogen (LIN), and liquid argon (LAr) as co-products.
Q: What design standards and pressure vessel certifications do you support?
A: Equipment can be engineered and manufactured in compliance with international codes including ASME, CE-PED, or ISO standards, depending on the destination country's regulatory requirements.
Q: What key data is required to receive a customized technical proposal and budget quote?
A: Please provide required oxygen capacity (Nm³/h), discharge pressure (MPa), purity level, site climate/utility conditions (cooling water, power supply), and any required liquid co-product ratios.
Q: Do you offer full EPC turnkey execution and international site services?
A: Yes. We provide end-to-end engineering, manufacturing, global shipping, on-site installation supervision, system commissioning, and long-term aftermarket technical support worldwide.
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