Purpose: Carbon Molecular sieve is a new adsorbent developed in the 1970s, is an excellent non-polar carbon material, Carbon Molecular Sieves (CMS) used to separate air enrichment nitrogen, using room temperature low pressure nitrogen process, than the traditional deep cold high pressure nitrogen process has less investment costs, High nitrogen production speed and low nitrogen cost. Therefore, it is the engineering industry’s preferred pressure swing adsorption (P.S.A) air separation nitrogen rich adsorbent, this nitrogen is widely used in chemical industry, oil and gas industry, electronics industry, food industry, coal industry, pharmaceutical industry, cable industry, metal heat treatment, transportation and storage and other aspects.