air separation plant(asu) Applications:
From steel manufacturing and chip production to chemical reactions and air separation units, our products have been integrated into industry and people's livelihood, and more application areas are waiting to be developed together with you.
In the steelmaking industry:
High-purity oxygen is the "industrial breath" of converter steelmaking. By blowing oxygen into molten iron, impurities such as carbon and sulfur can be quickly removed, significantly improving steelmaking efficiency while also enabling precise control of molten steel composition, ensuring key properties such as strength and toughness. It is a core process in modern steel production.
In the chemical industry:
Nitrogen, due to its inert properties, is an ideal shielding gas. It is widely used in chemical reactor purging and storage of flammable and explosive materials, effectively mitigating oxidation and explosion risks. Oxygen acts as an oxidant in the production of basic chemical raw materials such as synthetic ammonia and methanol, while argon plays a key role in isolating air in specialty welding and metal smelting, contributing to the stable production of fine chemical products.
In the semiconductor industry:
High-purity nitrogen is the "clean barrier" of chip manufacturing. In precision processes such as photolithography and deposition, nitrogen maintains an ultra-clean environment free of dust and oxygen, preventing contamination or oxidation of microcircuits, which directly impacts chip yield and performance. It is a crucial enabler for the semiconductor industry's advancement towards high precision and high integration.
First, the compression stage involves compressing air through equipment to increase its pressure, laying the foundation for subsequent processes.
Next, the cooling and liquefaction stages involve cooling the compressed air to extremely low temperatures, converting it to a liquid state.
Next, the distillation process involves transferring the liquefied air to a distillation tower, where the different boiling points of oxygen, nitrogen, and argon are utilized to separate the components.
Finally, product separation occurs. After distillation, the oxygen, nitrogen, and argon gases are collected separately as individual products.
ASU key components
From air compression to cryogenic liquefaction, and then to distillation separation and product collection, the air separation unit (ASU) provides you with a stable, high-purity gas output through precise processes.
Air compressor:
Compresses the air.
Heat exchanger:
Cools and heats the air stream.
Distillation column:
Gas separation occurs.
Refrigeration system:
Provides the low temperatures required for liquefaction.
| Quality Index: | |||
| Product | Oxygen / Liquid oxygen | Nitrogen / Liquid nitrogen | Liquid argon |
| Purity | ≥99.6% | ≥99.9% | ≥99.999% |
FAQ
What is the function of an air separation unit (ASU)?
An ASU separates gases such as oxygen, nitrogen, and argon from air through processes such as compression, cooling, liquefaction, and distillation, providing essential gas raw materials for various industries.
What is an ASU in oil and gas?
An ASU in oil and gas refers to an air separation unit (ASU). It is primarily used to separate oxygen, nitrogen, and other gases from the air. It plays a role in oil and gas extraction and processing, such as providing oxygen for combustion and nitrogen for inertization.
What is the cost of an ASU?
The cost of an ASU is influenced by many factors, including plant size, production capacity, technological level, required gas purity, and equipment materials. Therefore, the cost varies greatly and needs to be determined based on specific circumstances.
What is an ASU in the fertilizer industry?
ASUs in the fertilizer industry are primarily used to separate nitrogen from the air. Nitrogen is a key raw material for synthetic ammonia and other fertilizers. ASUs provide a stable nitrogen source for fertilizer production, ensuring smooth operation.
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