... ,4A,5A,carbon molecular sieve as catalyst for air separation industry 1.Beads 4*8mesh 8*12mesh 2.Pellets ... ,4A,5A,carbon molecular sieve as catalyst for air separation industryMolecular Sieve 3A is an alkali metal alumina-silicate; ... and on the conditions of the process. Size 3A – zeolite are available in beads of 1-2 mm, (10x18 mesh ... 4A,5A,carbon molecular sieve as catalyst for air separation industry