Application field of pressure swing adsorption oxygen plant
At present, domestic electric furnace enterprises have begun to replace the cryogenic separation oxygen or liquid oxygen storage tanks in the plant with pressure swing adsorption devices. In recent years, some electric furnace steelmaking enterprises have replaced the oxygen production device with the pressure swing adsorption oxygen production device to replace the original oxygen production method. The following pressure swing adsorption oxygen production device-Suzhou Jiarui gas to tell you in detail about the application field of pressure swing adsorption oxygen production device :
The pressure swing adsorption oxygen production device can produce oxygen with a purity of up to 93 %. Some electric furnace enterprises worry that the purity of pressure swing adsorption is low and can not make special steel. In fact, the process of electric furnace smelting special steel and smelting steel front end is the same. Adding ingredients to the electric furnace, changing the composition of the steel, blowing oxygen to promote combustion and blowing oxygen to decarbonize, so as to obtain the required steel grade, and there is no need to blow oxygen in the refining process. Therefore, the requirements for oxygen in electric furnace smelting special steel and smelting steel are essentially the same.
The oxygen produced by pressure swing adsorption contains about 3 % nitrogen and 4 % argon. Some electric furnace enterprises worry that the nitrogen will affect the acceptance index of special steel. In fact, there is no clear regulation on the nitrogen in alloy steel such as spring steel, bearing steel and seamless steel pipe used at room temperature in China ( not to mention ordinary steel ). Too much nitrogen will cause the problem of excessive nitrogen content in low temperature impact resistant steel ( China has clear regulations on the nitrogen content of low temperature impact resistant steel such as ship steel and oil well pipe steel, which should be ≤ 70ppm ). Most of our electric furnace steelmaking enterprises do not produce low temperature impact resistant steel. Therefore, the prospect of applying pressure swing adsorption to electric furnace smelting special steel is very broad.
According to the results of sufficient data research, there are also rich practical experience in the use of oxygen in electric furnaces abroad. American Praxair has done a long time of research on electric furnace steelmaking. The test results show that the oxygen steelmaking prepared by pressure swing adsorption in electric arc furnace will not cause the increase of nitrogen content in molten steel. About 60 % ~ 70 % of electric furnace steelmaking enterprises in Japan choose pressure swing adsorption as oxygen production method. At present, nearly 100 electric furnaces in the world have adopted oxygen prepared by pressure swing adsorption for steelmaking. Long-term practice has also proved that the oxygen prepared by pressure swing adsorption meets the requirements of electric furnace steelmaking.
The above is organized and released by the pressure swing adsorption oxygen production device-Suzhou Jiarui gas. For more information, please visit the website of Suzhou Jiarui Gas System Co., Ltd. Suzhou Jiarui is a science and technology company specializing in the research and development of gas separation and purification technology. The company has a science and technology development building, gas separation device assembly plant. Provide users with pressure swing adsorption hydrogen production, nitrogen production, oxygen production, purification or removal of carbon dioxide and other services, looking forward to win-win cooperation with you.
