Cryogenic Air Separation Plant

Name: China Cryogenic Air Separation Plant Manufacturers Suppliers Factory - Shenger Gas Equipment
Brand: Shenger
SKU: 205057523

In modern industry, high-purity oxygen, nitrogen and argon are indispensable industrial gases. Shenger Gas relies on decades of profound technology accumulation to provide you with efficient, stable and reliable cryogenic air separation plants. Our equipment adopts mature cryogenic distillation technology, which can separate various gas products from the air on a large scale and continuously, with a purity of up to 99.999%. It is widely used in many core industrial fields such as metallurgy, chemical industry, medical treatment, and electronics.

Send Inquiry

Chat Now

Product Introduction

The cryogenic air separation plant produced by Shenger Gas is a highly integrated system engineering. It "decomposes" air into its component gases through a series of precise processes such as compression, purification, cooling, and distillation. Our product lines range from small nitrogen production units of tens of cubic meters per hour to large cryogenic air separation plants of tens of thousands of cubic meters per hour. We can tailor solutions for customers that best meet their flow and purity needs.

Core technical principles

The basic principle of cryogenic air separation technology is to use the different boiling points of various components in the air (mainly nitrogen, oxygen, and argon) to achieve separation through deep freezing and distillation.

1. Air compression and purification: After the ambient air is filtered to remove dust, it is compressed to working pressure by the main air compressor, and then enters the molecular sieve purification system to completely remove impurities such as moisture, carbon dioxide, and hydrocarbons.

2. Heat exchange and cooling: The purified air exchanges heat with the returning low-temperature product gas in the main heat exchanger and is cooled to close to the liquefaction temperature.

3. Distillation separation: The liquefied air enters the distillation tower system. In the fractionating tower, since the boiling point of oxygen (-183°C) is higher than the boiling point of nitrogen (-196°C), oxygen is enriched into liquid oxygen at the bottom of the tower, while nitrogen is enriched into gaseous nitrogen at the top of the tower. Through the multi-stage mass transfer and heat transfer of the tower plates, high-purity liquid oxygen is finally obtained at the bottom of the tower, and high-purity gas nitrogen is obtained at the top of the tower. Further separation can also extract rare gases such as liquid argon.

4. Product output: The separated oxygen, nitrogen and other products can be stored and transported in liquid or gaseous form.

Key Performance Indicators

Product Gas	Typical Purity Range	Flow Range (Nm³/h)	Output Pressure (MPaG)
Gaseous Oxygen (GOX)	99.6% ~ 99.8%	100 ~ 80,000	0.5 ~ 3.0
Liquid Oxygen (LOX)	≥99.6%	Customized per liquefaction capacity	N/A
Gaseous Nitrogen (GAN)	99.999% ~ 99.9999%	100 ~ 60,000	0.1 ~ 0.8
Liquid Nitrogen (LIN)	≥99.999%	Customized per liquefaction capacity	N/A
Liquid Argon (LAR)	≥99.999%	Extracted based on feed air volume	N/A

Temperature and Energy Consumption Indicators:

Operating Temperature Range: The core unit operates at a cryogenic environment of -175°C to -195°C.
Energy Consumption Indicator: By optimizing process design and employing efficient turbo expanders, Sheng'er Gas achieves industry-leading power consumption per unit of product. For instance, the specific power consumption for large-scale oxygen plants can be as low as 0.35 ~ 0.45 kWh/Nm³ O₂.

Maintenance and service

To ensure the long-term stable operation of air separation equipment, regular maintenance is crucial:

Daily inspection: Check compressor vibration and temperature, molecular sieve switching program, and detect liquid pump sealing gas.
Regular maintenance: Regularly replace air filter elements, lubricating oil, molecular sieves and catalysts.
Key note: Strictly prevent the accumulation of hydrocarbons in liquid oxygen, and regularly analyze the content of acetylene and other hydrocarbons to ensure safety.
Shenger Service: We provide full life cycle services of remote monitoring, regular inspections, spare parts supply and emergency maintenance.

Technical parameters and certification standards

Design standards:

Shenger Gas's air separation equipment strictly follows internationally recognized design and manufacturing specifications to ensure the safety and reliability of the equipment.
Pressure vessels and piping: Comply with ASME Boiler and Pressure Vessel Code (ASME BPVC) and ASME B31.3 Process Piping.
Quality management system: The entire design, manufacturing, installation and service process has passed ISO 9001:2015 quality management system certification.
Safety standards: Comply with GB/T, EN and other national and international safety standards.

Choosing Shenger Gases means choosing a long-lasting and reliable industrial gas guarantee. We are not only a manufacturer of equipment, but also your partner throughout the entire process. Contact us now to get exclusive technical solutions and quotations!

About us

Shenger's capital investment in talents and scientific research accounts for more than 7% of whole sales, andalways insists on creating its own golden business card of high efficiency, innovation and energy saving. Maintainlong-term and stable cooperation with world-class well-known enterprises, such as Germany's Siemens, BURKERTGEMU, and Japan's Takeda Corporation, lwatani Corporation, etc.