China Carbon Molecular Sieve Co., Ltd. manufactures 0.35nm micro pore diameter carbon molecular sieves(CMS) for separation methane with high methane recovery rate over 97% and with purity 99.5% methane.

Due to the dynamic diameter of CO2, N2 and methane(CH4) are 0.33nm, 0.36nm and 0.382nm. The physical and chemical properties of CO2, N2 and methane(CH4) are similar. but their kinetic diameters are different in separation operations, The diffusion rate of CO2, N2 in carbon molecular sieve(CMS) for methane(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 in the initial stage of adsorption, and CH4 is directly enriched in the overhead gas.
Efficient carbon molecular sieve(CMS) for methane(CH4) and PSA generator purification and separation technology can improve the treatment of shale gas The recovery rate of low-concentration CH4 in coal bed methane and landfill gas is meaningful to alleviate the contradiction between energy supply and demand. improving the atmospheric environment.
Therefore, the pressure swing adsorption method is an effective method for separating CO2, N2 and methane(CH4) by be using carbon molecular sieve(CMS) for methane(CH4) as the adsorbent, which increase the recovery rate of methane(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 micro porous structure, and prepares carbon molecular sieve for methane(CH4) with uniform pore size, with a micro porosity 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(CMS) for methane(CH4) is 0.35nm, the (N2,CO2)/CH4 separation coefficient is as high as 13.6, and the recovery rate is over 97%. recovery rate separation