Air separation industry

As long as the air separation industry has equipment, free air can continuously create gas products. Now the air separation industry has been expanded a lot and has been widely used in many industrial fields. The air separation industry has high technical requirements, so when selecting air separation equipment suppliers, enterprises with rich industry experience should be selected. Kaifeng DEAR air separation industry Co., Ltd., formerly known as Kaifeng Air Separation Group Instrument Co., Ltd., was transformed into an independent company in 2004. DEAR is a major equipment manufacturer and gas supplier in Chinese air separation industry. Combined with many years of air separation plant manufacturing and operation experience, to provide you with the most appropriate solution. For details, please contact customer service online or leave a message.

Products of Air separation industry

Large air separation plant KDON (Ar)-36000/72000-1200

Get quotes

Large air separation plant KDON (Ar)-30000/70000-900

Get quotes

Large air separation plant KDON(Ar)-20000/30000-650

Get quotes

Complete air separation plant KDON(Ar)-20000/30000-650

Get quotes

Cases of Air separation industry

Case of DEAR air separation and Anfeng Iron and Steel Company

Case of DEAR air separation and Sanhe Company

Case of DEAR air separation and Chilwee Group

News of Air separation industry

Kaifeng DEAR air separation successfully signed the supply contract of liquid oxygen vaporization pressure stabilizing device with Luoyang Zhongchao

Oct 14, 2020

On October 13, it was reported that Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as DEAR air separation) and Luoyang Zhon

Delegation from Qinzhou City of Guangxi Province for investigation and interchange in DEAR air separation

Sep 30, 2020

On September 24, a delegation from QinZhou Federation of Industry and Commerce of Guangxi province came to DEAR air separation for investigation and i

Video of Air separation industry

The first intelligent workshop of air separation in China

Dec 08, 2023

DEAR air separation builds the intelligent warehousring management system

Dec 06, 2023

Analysis of the hidden danger of the main cooling system and preventive measures

Jul 28, 2023

Albums of Air separation industry

Case of DEAR air separation and DaHua Technology

Sep 21, 2023

DEAR air separation design and research institute

Jun 30, 2023

DEAR air separation plant production workshop

Jan 14, 2021

Solutions of Air separation industry

Large air separation plant KDON (Ar)-18000/36000-600 solution for chemical industry

Chemical industry has the characteristics of large scale, long industrial chain and so on. It is the basic industry and an important part of Chinese national economy. In recent years, environmental protection has been paid more and more attention, and the green development of chemical industry is also very important. In addition, the chemical industry in the industrial integration, scientific and technological innovation is also in constant efforts to advance. DEAR air separation helps the chemical industry to transform and upgrade to be environmental-friendly. DEAR’s large-scale air separation plant KDON (Ar) - 18000 / 36000-600 can use ultra-low pressure discharge energy-saving air separation technology patent, which can reduce the energy consumption of equipment operation by 5% - 15% and save a lot of production costs.

Learn More

Large air separation plant KDON-20000/20000 solution for metallurgical industry

DEAR air separation has cooperated with customers in metallurgical industry domestic and abroad in many projects, and has rich project experience. DEAR has continuously invested in the research and development of large-scale air separation plant. In view of metallurgical industry, DEAR combined with the characteristic of this industry, develops high-efficiency energy-saving air separation plant, to meet the needs of large and medium customers. DEAR air separation uses the rapid development of internet technology to establish a remote monitoring system to collect real-time operation data of each air separation plant, and provides the best suggestions for users by using big data analysis.

Learn More

Faq of Air separation industry

Heat exchange form of precooling system in air separation unit

In the air separation unit of molecular sieve adsorption purification process, after the air is compressed at the last stage of the air compressor, the temperature out of the air compressor reaches 80-90 ℃. Since the adsorption capacity of molecular sieve is inversely proportional to the temperature, in order to improve the working efficiency of molecular sieve adsorber and ensure the purification effect, the compressed air from the air compressor must be cooled to reduce the temperature of the compressed air before entering the purification system.

May 30, 2025

Characteristics of internal compression air separation process with liquid oxygen in air separation unit

The oxygen and nitrogen products produced by the air separation unit in the external compression process are low-pressure oxygen and nitrogen from the upper column, which are sent out of the cold box after being reheated by the heat exchanger. The product gas pressure out of the cold box is generally 0.12MPa. After being compressed to the pressure required by the user by the oxygen compressor, it is sent to the user’s pipeline. The internal compression process of oxygen is that liquid oxygen products are directly extracted from the condensing evaporator, compressed to the user's required pressure by the liquid oxygen pump in the cold box, and then sent to the user's pipeline after reheating and gasification by the heat exchanger.

May 22, 2025