Cryogenic Separation
After being compressed and cooled to a liquefied state, air enters a fractionating tower, where it is fractionated based on the boiling point differences between components such as oxygen (−183°C) and nitrogen (−196°C). This method produces high-purity oxygen (>99.5%) and nitrogen, while also recovering rare gases such as argon for use in high-value-added processes.
Membrane Separation
The membrane separates oxygen and nitrogen from the air through highly selective membrane materials, making it suitable for low- to medium-purity oxygen supply. The membrane separation system offers fast response, meeting the short-cycle, variable-load oxygen demands of petrochemical processes.
Pressure Swing Adsorption (PSA)
Oxygen enrichment is achieved through the selective adsorption of nitrogen by an adsorbent at both high and low pressures. The PSA unit offers flexible response and can be used as a supplementary or backup oxygen supply system, making it suitable for small and medium-sized petrochemical plants or for applications requiring a flexible gas source.
Applications
Oxygen combustion heating
The high-purity oxygen provided by ASU is used in combustion equipment such as cracking furnaces, heating furnaces, and steam boilers to form a high-temperature combustion zone, improve thermal efficiency, reduce fuel consumption, and shorten heating time.
Chemical reaction oxidation support
During hydrogenation, oxidation or dehydrogenation reactions, high-purity oxygen provides an ideal oxidation environment, accelerating the chemical reaction rate, increasing the yield of the target product, and reducing the formation of by-products.
Waste gas treatment and environmental protection
Oxygen-enriched combustion can significantly optimize flue gas composition, reduce CO, unburned hydrocarbons, SOx and NOx emissions, making petrochemical production more environmentally friendly and in compliance with strict emission standards.
| Quality Index: | |||
| Product | Oxygen / Liquid oxygen | Nitrogen / Liquid nitrogen | Liquid argon |
| Purity | ≥99.6% | ≥99.9% | ≥99.999% |
FAQ
Q: What petrochemical processes are NEWTEK's air separation units suitable for?
A: Our ASUs can be used in cracking furnaces, heating furnaces, steam boilers, hydrogenation and oxidation reaction units, providing high-purity oxygen support for petrochemical production and achieving efficient combustion and chemical conversion.
Q: What is the oxygen purity?
A: The oxygen purity provided by NEWTEK can reach over 99.5%, and the nitrogen purity can reach 99.99%, meeting the strict gas quality requirements of high-end petrochemical processes.
Q: Can we provide customized air separation solutions?
A: Yes. We offer modular or fully customized ASU solutions based on gas output, purity, plant layout, and process requirements, ensuring a perfect match with your production process.
Q: What are the energy consumption and operating costs of an air separation unit?
A: NEWTEK ASU uses advanced energy-saving technologies, including high-efficiency compressors, cryogenic separation, and intelligent control systems, which can reduce unit gas energy consumption and overall operating costs.
Hot Tags: air separation unit for petrochemical oxygen combustion, China air separation unit for petrochemical oxygen combustion manufacturers, suppliers, air liquide air separation unit, air separation contract, Air Separation Plant, Air Separation Unit For Oxygen, ASU oxygen plant, oxygen production maintenance
