Gelless Secondary Growth of Zeolitic Aluminophosphate Membranes on Porous Supports with High Performance in CO /CH Separation.

Zeolitic aluminophosphate, a three-dimensional microporous material, with an average pore size of 0.38 nm is good candidate for molecular sieve application in CO gas separation. The separation of CO /CH gas mixtures for precombustion processes is desirable from the standpoint of both environmental concerns and energy efficiency.