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.
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.
The principle and characteristics of large air separation cryogenic nitrogen production
Nitrogen is the main component of air, accounting for about 78% of air. With the progress of science and technology and economic development, the application of nitrogen is expanding and has penetrated into many industrial sectors and daily life.
There are several main methods of producing nitrogen. One of them is cryogenic air separation nitrogen, which is a traditional method of nitrogen production and ha...
Isothermal throttling refrigeration in large air separation plant
Air can be reduced in temperature by throttling, isothermal throttling is an isoenthalpy process and does not produce cooling. If the gas is to be cooled by isothermal throttling, it is compressed by isothermal compression and expanded by throttling. The enthalpy of the gas decreases during isothermal compression and the work of the compressor and the enthalpy drop of the gas are transferred to the environment together as...