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China Liquid Oxygen and Liquid Nitrogen ASU Plant Suppliers | Fullcryo Cryogenic Air Separation Factory
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China Liquid Oxygen and Liquid Nitrogen ASU Plant Suppliers | Fullcryo Cryogenic Air Separation Factory

Discover Fullcryo Cryogenic Air Separation Systems, proudly manufactured in China. Our models, including KDO, KDN, KDON, and KDONAr, offer impressive flow rates ranging from 50 to 80,000 Nm3/h. As leading suppliers in the industry, we specialize in R&D, high-quality manufacturing, and expert onsite installation.

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At our state-of-the-art factory, we combine innovative design with advanced manufacturing technologies to deliver unparalleled service before and after your purchase. Our dedicated air separation operation management team is committed to ensuring your complete satisfaction, making us your trusted partner in air separation solutions.

    Product Description

    The basic principle of air separation is use cryogenic rectification to condense air into liquid and separate the air according to the evaporation temperature of each component. The two-stage rectification tower simultaneously obtains pure nitrogen and pure oxygen at the top and bottom of the upper tower. It is also possible to take out liquid oxygen and liquid nitrogen from the evaporation side and the condensation side of the main cooling respectively.

    The air separation in the rectification tower is divided into two stages, air is separated for the first time in the lower tower to obtain liquid nitrogen and at the same time obtain oxygen-enriched liquid air. The oxygen-enriched liquid air is sent to the upper tower for rectification to obtain pure oxygen and pure nitrogen. The upper tower is divided into two sections: with the liquid-air inlet as the boundary, the upper part is the rectification section, which rectifies the rising gas, recovers the oxygen component, and purifies the nitrogen purity, and the lower section is the stripping section to remove the nitrogen components in the liquid, separated to improve the oxygen purity of the liquid.

    The function of liquid oxygen and liquid nitrogen is to provide a convenient and efficient way to store and transport these gases for a variety of industrial, medical and scientific applications.

    Liquid Oxygen Applications:

    Used in respiratory support in medical facilities, in industrial processes such as metal cutting and welding, and in the production of chemicals and fuels. It is also used in the aerospace industry for rocket propulsion and in the medical field for cryotherapy and cryopreservation.

    Liquid Nitrogen Applications:

    Has a wide range of applications, including as a coolant for preserving biological samples, in the food industry for freezing and packaging, in the semiconductor industry for cooling during manufacturing processes, and in the medical field for use in cryosurgery and dermatology.

    The liquid forms of these gases are easier to store and transport than their gaseous counterparts, and also enable precise and controlled delivery of the gas to the point of use. This makes liquid oxygen and liquid nitrogen vital to many critical applications across industries.

    Air separation product description diagram

    Parameters

    Air separation equipment parameters specification sheet

    Factory Pictures

    Factory manufacturing facility view 1Factory manufacturing facility view 2Factory manufacturing facility view 3Factory manufacturing facility view 4
    Factory manufacturing facility main equipment

    Frequently Asked Questions

    What is the basic working principle of air separation?
    Air separation operates on the principle of cryogenic rectification. The air is cooled until it liquefies and is then separated in a rectification tower based on the different boiling (evaporation) temperatures of its individual components, such as oxygen and nitrogen.
    How does the two-stage rectification process work?
    The process is divided into two stages. First, air is separated in the lower tower to produce liquid nitrogen and oxygen-enriched liquid air. This oxygen-enriched liquid is then transferred to the upper tower for further rectification to extract pure oxygen and pure nitrogen.
    What are the primary applications of liquid oxygen?
    Liquid oxygen is widely used for respiratory support in medical facilities, metal cutting and welding in industrial settings, chemical and fuel production, aerospace rocket propulsion, as well as cryotherapy and cryopreservation in medicine.
    What are the typical uses of liquid nitrogen?
    Liquid nitrogen serves as an effective coolant for preserving biological samples, freezing and packaging food, cooling manufacturing processes in the semiconductor industry, and performing cryosurgery and dermatological procedures.
    Why are oxygen and nitrogen stored and transported in liquid form?
    Liquid forms of these gases are significantly more compact, making them easier and more economical to store and transport than high-pressure gaseous forms. They also allow for highly precise, controlled delivery at the point of use.