Process for the preparation of carbon membranes for gas separation.

摘要

Process for the preparation of frogs carbon for gas separation. The membrane developed is a carbon membrane, flat, symmetrical, formed by a dense layer of carbon microporous, thickness 2 to 3 mm, with molecular sieve properties and which is supported on a carbon substrate macroporous (plane ) or ceramic-like (tubular). For the preparation of the carbon membrane developed in this invention the following scheme was followed: The polymer (phenolic resin), is dissolved in methanol. Sometimes other solvent as a diluent was used; The polymer solution was deposited evenly and extended on the surface of a substrate; Formed polymeric membrane was cured in air; The polymeric membrane, cured and deposited on the substrate was slowly heated under vacuum to a temperature such that polymer decomposition and transformation occurs in a microporous carbon film.