NEWTEK Cryogenic Air Separation Plant

What is a cryogenic air separation unit?

 

A cryogenic air separation unit is a core industrial equipment that efficiently separates gases through a distillation process, using compression and deep cooling to a liquid state. It then utilizes the boiling point differences between oxygen (-183°C), nitrogen (-196°C), and argon (-186°C). As a leading global gas system service provider, NEWTEK combines this proven technology with its global experience in deploying over 9,000 systems. This technology covers a wide range of scenarios, from small semiconductor-specific equipment to large-scale industrial-grade installations, earning the trust of global customers.

 

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Application Cases: Empowering Development Across Industries

●Industrial Manufacturing:

A 4×40,000 Nm³/h cryogenic air separation project in Peru provides high-purity oxygen to a large local steel mill, helping to increase steelmaking efficiency by 25%. It also uses nitrogen to prevent oxidation of molten steel.
 

●Medical:
A Philippine government hospital oxygen supply system uses a small JNC50 device to provide a stable supply of medical oxygen with a purity of 99.5%, ensuring respiratory support for critically ill patients.

●Electronics:
A customized JNR150 device for a Southeast Asian semiconductor factory produces high-purity nitrogen with a purity of 0₂≤0.01ppm, meeting the inert environment requirements for wafer cleaning and packaging.

●Energy:
A 30,000 Nm³/h project in Ghana provides oxygen to a coal gasification plant, enabling efficient syngas production while also integrating with a carbon capture system to reduce carbon emissions.

1. Can NEWTEK cryogenic air separation units operate at high altitudes (e.g., above 3,000 meters)?

Yes. To address the low air pressure and density at high altitudes, the equipment features customized optimizations of the compressor intake system (including an intake pressure compensation module) and the cold box insulation (thickened to at least 150 mm). Furthermore, adjustments are made to the distillation column operating parameters to ensure stable gas production at high altitudes. This feasibility has been verified in high-altitude projects such as Qinghai and Peru.

2. If a temporary increase in nitrogen/oxygen production is required during operation, can the equipment support short-term overload operation?

Yes. Within the range of 105%-110% of the equipment's design load, short-term overload operation can be achieved by increasing the frequency of the variable-frequency compressor and dynamically adjusting the distillation column reflux ratio. A single overload operation is recommended for no more than 72 hours. If long-term overload is required, contact the NEWTEK technical team to upgrade core components (such as replacing larger packings) to avoid excessive equipment wear.

3. How does the equipment ensure long-term stability in meeting the "0₂ ≤ 0.01ppm high-purity nitrogen" standard required by the semiconductor industry?

In addition to the full range of oil-free processes, the equipment is equipped with a dual purification system-a pre-molecular sieve for deep impurity removal, followed by secondary purification using a palladium catalytic deoxygenation module. It is also equipped with an online purity monitor, providing real-time feedback and automatically adjusting process parameters to ensure a stable nitrogen purity of 0₂ ≤ 0.01ppm.

4. Does molecular sieve replacement during equipment operation require downtime? Is the replacement process complicated?

A short downtime (usually 8-12 hours) is required, and the process is not complicated. NEWTEK's molecular sieve adsorption tower is designed with a quick-opening structure, allowing for quick removal of the end cap. It also offers "pre-pressurized molecular sieve modules," which can be directly replaced with the old module without the need for on-site refilling, significantly reducing downtime and impact on production.

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