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Carbon molecular sieve

Carbon molecular sieve is a new-model adsorbent that was developed in the 1970s, and it’s an excellent nonpolar carbon material. Carbon molecular sieve is white columnar solid. It has a large number of pores with diameters of 0.28-0.36nm and a small number of macropores and mesopores.

Air separating power of nitrogen generation carbon molecular sieve depends on different diffusion rates in pores of carbon molecular sieve of oxygen and nitrogen in the air. The internal pore size distribution of common carbon molecular sieve is between 0.28 and 0.36nm, and within this pore size range, oxygen (aerodynamic diameter is 0.346nm) can pass through the pores, which nitrogen (aerodynamic diameter is 0.364nm) cannot, thus the nitrogen and oxygen separation can be achieved.