Process for producing molecular sieve carbon fibers

Details Process for producing molecular sieve carbon fibers Process for producing molecular sieve carbon fibers

1986-08-19

1988-03-29

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Free carbon containing

55 74, 55 75, 55389, 55527, 264 292, 4234472, 4234476, 502433, 502435, B01J 2030, B01J 2028, D01F 912

Patent

active

047343940

ABSTRACT:
Molecular sieve carbon fibers capable of separating and purifying nitrogen from air in large quantities are provided. The carbon fibers have diameters of 5 to 50 .mu.m and micropores opening directly at the surface of the carbon fibers with pore sizes of 0.5 nm or less. They are capable of separating nitrogen at a purity of 98% or higher, even 99.9% or higher from air, etc., with a relatively low adsorbing pressure and deadsorbing vacuum. The molecular sieve carbon fibers do not deteriorate during operation since they are resistant to division or powdering and the adsorbing pressure and deadsorbing vacuum are relatively low.

REFERENCES:
patent: 4014725 (1977-03-01), Schulz
patent: 4197283 (1980-04-01), Crepaux et al.
patent: 4484938 (1984-11-01), Okamoto et al.
patent: 4552148 (1985-11-01), Gomi et al.

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