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Air Separation Units (ASU) | Cryogenic Oxygen & Nitrogen Plants | MINGXIN

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Product Overview

MINGXIN’s Air Separation Unit (ASU) is a modular, highly energy-efficient engineering solution designed to generate high-purity oxygen, nitrogen, argon, and rare gases for demanding industrial applications. By leveraging state-of-the-art cryogenic distillation and advanced adsorption technologies, our ASUs deliver a continuous, highly reliable gas supply while drastically minimizing your facility's long-term operational costs (OPEX).

Core Product Offerings

To perfectly match your facility’s specific gas consumption, MINGXIN provides three distinct system architectures:

  1. Small & Medium-Sized Cryogenic ASUs: Engineered for production capacities ranging from 200 to 10,000 Nm³/h. These units are the backbone for heavy industries requiring bulk liquid and gaseous O₂, N₂, and Ar.

  2. High-Purity Nitrogen Plants: Dedicated nitrogen generation systems delivering ultra-high purity up to 99.999% (5N), perfectly suited for electronics, semiconductor manufacturing, and food packaging.

  3. Pressure Swing Adsorption (PSA) Systems: Non-cryogenic generators offering incredibly fast startup times (≤30 minutes) and low maintenance. Utilizing minimal moving parts, they provide a highly cost-effective on-site gas generation solution.

Key Features & Design Highlights

  • Low-Pressure Process Innovation: Integrates an advanced low-pressure cycle design that significantly reduces the air compressor's workload, cutting overall energy consumption by up to 20% compared to conventional ASU designs.

  • Modular, Skid-Mounted Architecture: Core system components are pre-engineered into modular skids. This allows for customized configurations, faster on-site deployment, and greatly reduced civil engineering costs.

  • Intelligent Automation (PLC): Equipped with a sophisticated PLC-based control system, featuring fully automated operations, real-time purity monitoring, and remote diagnostic capabilities.

  • Unrivaled Reliability: Built with robust, world-class components and redundant sub-systems to guarantee an exceptional 99.5% operational uptime.

  • Strict HSEQ Compliance: Manufactured in strict adherence to ISO 9001, ISO 14001, and OHSAS 18001 standards, ensuring maximum workplace safety and environmental responsibility.

Technical Specifications

  • Gas Purity: 99.5% – 99.999% (O₂ / N₂ / Ar)

  • Production Capacity: 200 Nm³/h – 10,000 Nm³/h

  • Output Pressure Range: 0.8 MPa – 1.6 MPa (Gaseous output)

  • Specific Power Consumption: ≤ 0.65 kWh/Nm³ (for Oxygen production)

  • Acoustic Noise Level: < 85 dB(A)

  • Backup Liquid Storage: Optional integrated cryogenic liquid storage tanks (5 m³ – 50 m³) for emergency peak-shaving and backup supply.

Industry Applications

  • Metallurgy & Steel Mills: Providing massive volumes of high-purity oxygen for steelmaking, smelting, and metal fabrication (cutting and welding).

  • Petrochemical & Refining: Supplying continuous nitrogen for inert gas blanketing, pipeline purging, and hydrogen purification processes.

  • Medical & Healthcare: Serving as the central production hub for life-saving, medical-grade oxygen supply to hospitals and clinics.

  • Electronics & Semiconductors: Delivering the ultra-high purity nitrogen (5N) required for defect-free microchip and semiconductor fabrication.

The MINGXIN Advantage

At MINGXIN, building an Air Separation Unit is a partnership. We provide comprehensive Turnkey EPC (Engineering, Procurement, and Construction) services—from initial thermodynamic simulations and custom cold-box manufacturing to on-site installation, commissioning, and operator training. Backed by our 24/7 technical support, critical spare parts inventory, and routine energy efficiency audits, a MINGXIN ASU ensures that your industrial gas supply remains reliable, pure, and incredibly cost-effective for decades to come.