carbon molecular sieve for nitrogen| carbon molecular sieve for CH4|PSA generaton|China Carbon Molecular Sieve Co., Ltd..

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Due to the dynamic diameter of CO2 N2 and CH4 are 0.33nm, 0.38nm and 0.382nm. The physical and chemical properties of CO2, N2 and CH4 are similar. but their kinetic diameters are different in separation operations, The diffusion rate of CO2, N2 in carbon molecular sieve-CH4 much greater than the diffusion rate of CH4. Based on the kinetic principle, most of the CO2 and N2 are adsorbed by carbon molecular sieve-CH4 in the initial stage of adsorption, and CH4 is directly enriched in the overhead gas. Efficient carbon molecular sieve-CH4 and PSA generator purification and separation technology can improve the treatment of shale gas The recovery rate of low-concentration CH4 in coalbed methane and landfill gas is meaningful to alleviate the contradiction between energy supply and demand and improve the atmospheric environment.
Therefore, the pressure swing adsorption method using carbon molecular sieve-CH4 as the adsorbent is an effective method to separate CO2, N2 and low-concentration CH4 to increase the recovery rate of CH4.
China Carbon Molecular Sieve Co., Ltd. uses high-purity raw materials through carbonization and chemical vapor deposition of CH4 to realize the control of the microporous structure, and prepares carbon molecular sieve-CH4 with uniform pore size, with a microporosity of 93%, and it is very effective for CO2 /CH4, ,N2/CH4 has good separation ability and high CH4 recovery rate. When the pore size diameter of our carbon molecular sieve-CH4 is 0.35nm, the (N2,CO2)/CH4 separation coefficient is as high as 13.6, and the recovery rate is over 97%