Cryogenic Air Separation
High-purity gas separation is achieved by compressing air, pre-cooling, liquefying it, and then fractionating it using the different boiling points of air components (O₂: −183 °C, N₂: −196 °C, Ar: −186 °C).
Membrane Separation
The selective permeability of the polymer membrane is used to increase the concentration of nitrogen or oxygen, making it suitable for the supply of medium and low purity gases.
Pressure Swing Adsorption (PSA)
By utilizing the selective adsorption of oxygen or nitrogen by the adsorbent at different pressures, rapid switching of gas supply can be achieved, which is suitable for small-scale or flexible processes.
Applications
Nitrogen (N₂) Applications:
Nitrogen is primarily used in the chemical industry to provide an inert atmosphere to prevent oxidation or explosion during organic reactions and storage. It is also used as a gas diluent or carrier gas for reaction control and analytical testing. It can also be used for inert protection of liquid chemical pipelines, improving production safety and equipment life.
Oxygen (O₂) Application:
Oxygen is mainly used in oxidation reactions and combustion processes in the chemical industry, such as nitric acid, ethylene oxidation, methanol synthesis and ethylene oxide production, to increase reaction rate and yield. At the same time, in exhaust gas treatment and organic waste incineration, oxygen-enriched combustion can improve efficiency and reduce harmful emissions. It is a key reactant in many chemical synthesis and petrochemical processes.
| Quality Index: | |||
| Product | Oxygen / Liquid oxygen | Nitrogen / Liquid nitrogen | Liquid argon |
| Purity | ≥99.6% | ≥99.9% | ≥99.999% |
FAQ
Q: What industries are NEWTEK's air separation units suitable for?
A: Our ASU products are widely used in the chemical, steel, power, pharmaceutical and environmental protection industries, providing a stable supply of high-purity oxygen, nitrogen and argon to meet various process requirements.
Q: Can NEWTEK provide customized air separation units?
A: Yes. We offer modular designs and customized solutions based on gas output, purity requirements, and plant conditions, ensuring a perfect match with your production process.
Q: What is the gas purity of the air separation unit?
A: We provide oxygen with a purity of more than 99.5% and nitrogen with a purity of 99.99%, meeting the strict standards of high-end chemical, electronics and steel industries.
Q: What are the energy consumption and operating costs of an ASU?
A: NEWTEK's air separation unit uses advanced compression, cryogenic separation, and energy-saving control technologies to optimize energy consumption and reduce unit gas production costs.
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