Oxygen Generation Air Separation

Air separation plant is to provide oxygen, nitrogen and argon for metallurgy, steel, chemical industry (petrochemical industry, natural gas chemical industry), machinery, environmental, electronics, pharmaceutical, glass, tires, polysilicon, energy, etc

As one of our core products, Air Separation Plant adopts mature cryogenic air separation technology, efficiently separating oxygen from the air through compression, purification, cooling, distillation, and other steps. The core principles employed are the adsorption method (Pressure Swing Adsorption, PSA) or the distillation method: the adsorption method utilizes molecular sieves to separate oxygen quickly based on differences in gas adsorption, offering convenient startup; the distillation method purifies oxygen through multiple evaporation and condensation cycles by leveraging differences in gas boiling points, making it suitable for large-scale production.

Our oxygen purity can be flexibly adjusted according to customer requirements, ranging from 93% (oxygen-enriched) to 99.99% (high-purity oxygen), meeting oxygen standards for various scenarios. The equipment is renowned for its high reliability, low energy consumption, and high degree of automation, widely applied in steel smelting, coal chemical engineering, medical oxygen supply, glass melting furnaces, and other fields, serving as the cornerstone for customers to enhance processes and improve efficiency.

In terms of core technical parameters, the output pressure ranges from 0.1 to 1.6 MPa, with an operational load adjustment range of 30% to 110%. The liquefaction system can achieve a minimum temperature of -196°C. The equipment is compatible with motor power ranging from 100 kW to 4,000 kW (mostly powered by 6 kV/10 kV high-voltage electricity), featuring energy consumption over 10% lower than traditional equipment and equipped with an intelligent monitoring system to ensure stable operation.

The air separation unit output ranges from 500 to 60,000 Nm³/h, covering energy supply needs from small-scale industrial applications to large-scale plants, with purity customizable as required.

Leveraging extensive process experience, we provide optimal process flows, including all air separation processes such as internal compression, external compression, and hydrogen-free argon production.

Air undergoes pressurization and filtration, preliminary cooling and initial dehydration, followed by deep dehydration via PPU. One portion enters the booster for pressurization, after which a fraction is extracted to pass through the expander for pressurization and cooling. It then enters the main heat exchanger of the cold box for further cooling before entering the expander for expansion refrigeration. Subsequently, it enters the lower column to participate in distillation. Another portion is cooled to a liquid phase via the main heat exchanger and enters the lower column for distillation. The remaining air directly enters the main heat exchanger, cooled to the dew point, and enters the lower column for distillation. After distillation in the lower column, liquid oxygen is extracted from the top, while lean liquid air and oxygen-rich liquid air are extracted from the lower sections. These three streams enter different sections of the upper column as reflux liquids to participate in distillation. Ultimately, product oxygen is obtained at the bottom of the upper column, and product nitrogen is obtained at the top. After reheating via the heat exchanger, the products are discharged from the cold box. Unlike conventional processes, this flow includes an argon enrichment column. Argon-enriched fractions are extracted from the mid-lower section of the upper column and enter the argon enrichment column. Through distillation in the argon enrichment column, argonrich gas is discharged from the top, and a fraction with higher oxygen concentration is obtained at the bottom and returned to the upper column for distillation.

·Manufacturing, Installation, and Commissioning Period:

Modularized for factory assembly and on-site installation, ensuring efficient product delivery. The total project duration from contract signing to successful commissioning is <8 months.

·Air Compressor Parameters:

Exhaust flow: 62,500 Nm³/h; Exhaust pressure: 5.17 bar.A. Commissioning results: Extraction rate >99.3%.

·Advantages:

This oxygen production air separation unit offers a wide production capacity range and broad adaptability. Utilizing advanced adsorption or distillation technology, it ensures stable oxygen purity (90%~99.99%) and high gas production efficiency. Designed for industrial continuous energy supply needs, it features flexible operational load adjustment (40%~110%), energy consumption over 10% lower than traditional equipment, convenient operation and maintenance, and comprehensive safety protection. It can stably support oxygen-demanding processes such as smelting and chemical engineering.

·Why It Is a Classic Case:

The extraction rate of this unit has been upgraded from the conventional internal compression air separation rate of 98% to 99.3%, reducing energy consumption by 3%. Moreover, the commissioning time from starting the expander to product output was only 17 hours, demonstrating our company's manufacturing capabilities for large-scale air separation units.

Q: Are you a manufacturer or a trading company?
We are a professional manufacturer in the cryogenic equipment field.

Q: What's your advantage?
We provide you not only technology-leading, stable and reliable, cost-efficient equipment, but also solutionsand after-sales service.

Q: Have your engineers participated in any foreign projects?
Yes, our engineers have more than 15 years of experience in this field and have participated in the design, manufacturing, installation, and commissioning of the equipment in Turkey, Egypt, Myanmar, etc.

Q: How can I get the exact price of the product?
Please tell us your specific requirements and environmental data,so we can provide the most suitable products and solutions for you.