Carbon molecular sieve

The carbon molecular sieve (CMS) is a kind of late-model nonpolarity sorbent. It has the performance to absorb oxygen in the air under changing pressure of normal temperature, so it can gain rich nitrogen gas. Traditional rich nitrogen in air plant is produced to adopt deep freezing method, that is to make air liquefy under low temperature, separate oxygen and nitrogen through rectification. Now our plant adopts the new technique of changing pressure adsorptive process of carbon molecular sieve, compared with deep freezing, it has many characteristics. Its most remarkable characteristic is that N2 has little impurity content, N2 concentration and air current can be adjusted according to the requirements, and can gain high purity N2 with less than 5ppm O2 content and lower than -60?? dew point through refine.