当前位置: Home / Faq / Liquefied air separation FAQ /

Cryogenic distillation process of liquid air plant in Nitrogen and Oxygen

Cryogenic distillation process of liquid air plant in Nitrogen and Oxygen
Mar 17, 2025
Author: DEAR AST

After refrigeration, of course, liquid air can be used as the cooling source to provide the condenser with cold quantity to organize the deep cooling air separation process. However, it is difficult to choose heating to reboiler. Most of the commonly known substances are solid state and cannot be used as heat carrier under the condition of deep cooling. Of course, electric heating is not available, and the only option is pressurized air. Once pressurized air is selected as the heat source of reboiler, the pressurized air will liquefy into liquid air when it provides heat to reboiler. After decompression, it can provide cold source to condenser, but it is a kind of closed heat pump distillation process with air as circulating working medium. This is a single tower deep cold air separation process which can realize complete separation of oxygen and nitrogen. Nitrogen and oxygen can also be used as circulating working medium to organize the deep cooling air separation process. If the process of deep cooling air separation with nitrogen as the circulating working medium is analyzed, it can be found that the condenser is redundant and harmful, and can be cancelled completely. The cancelled process is the new single tower process.

 

Science and technology innovation + management innovation initiated the reform of the air separation industry mode, and developed the remote intelligent monitoring system with the help of Internet technology. Realize remote control, automatic data acquisition and analysis and other functions to achieve early detection and early warning of equipment failure.

 

DEAR Air Separation has 20 years of air separation equipment manufacturing experience and nearly 10 years of air separation equipment operation and maintenance experience, and has accumulated mature and perfect air separation equipment overall operation and maintenance standard process. Based on the deep integration of the new generation of information and communication technology and advanced manufacturing technology, the intelligent upgrading of enterprises is built based on the automation production technology, which helps customers to achieve rapid growth.

1

DEAR Air Separation Solve YourCryogenic distillation process of liquid air plant in Nitrogen and OxygenYou can also learn about otherLiquefied air separation FAQ about DEAR Air Separation, and solve the problem for you.
Didn’t find the problem encountered?
Please contact live chat or email for quick help.
Related FAQ
More Related FAQ
Answer: select the small cryogenic air separation unit with argon, and give priority to verifying the real continuous operation performance of the unit with argon below 1000nm ³/h, avoiding the scheme with only drawings and no long-term operation record. Key dimensions of model selection: 1. operation performance: it is confirmed that the manufacturer has a long-term stable production case of small flow air separation with argon. Deere air separation small-scale hydrogen free total distillation argon extraction air separation, supports scale customization below 1000nm ³/h, and is equipped with intelligent control system, with mature landing performance. 2. power consumption per unit liquid argon
2026.11.06
Answer: the default unit gauge pressure is MPa (g), and the mainstream is cryogenic full low pressure external compression process. Design pressure of conventional energy-saving models in the industry: 0.50~0.55 MPa (g); The lower limit of stability of ordinary process is about 0.45 MPa (g). In general, it is not recommended to be lower than 0.42 MPa (g) for a long time in the conventional scheme. If the pressure is too low, there will be risks such as poor heat exchange in the precooling tower, insufficient purification of molecular sieve, difficult to balance the cooling capacity, and the air compressor close to the surge area. The internal compressed air is distributed with a booster. The main air compressor is mostly 0.55~0.65 MPa (g), and the lower limit is mostly 0.50 MPa (g), which is difficult to achieve below 0.45MPa (g). Deere air separation ultra-low discharge pressure patented energy-saving external compression air separation, through the collaborative optimization of the w
2026.11.06
Need more information?
Contact us for more details about our air separation equipment, solutions and services.
Products
  • Large air separation
  • Small air separation
  • High purity nitrogen air separation
  • Liquefaction air separation
  • Complete air separation
  • Biogas purification
  • Air separation parts
Need more information?
Tel:+86-19837850537
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top