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China Carbon Molecular Sieve Co., Ltd. manufactures
0.35nm micropore 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 coalbed 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 microporous structure, and prepares carbon molecular
sieve for methane(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(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%.
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