Use of crystalline molecular sieves containing charged octahedral sites in removing volatile organic compounds from a mixture of the same

A cyclic process for the removal of volatile organic compounds from a mixture of the same with moist gas stream wherein said mixture is adsorbed at ambient temperature or substantially ambient temperature and is subsequently desorbed which comprises contacting said mixture with a molecular sieve containing octahedrally coordinated active sites and thereafter thermally regenerating said sieve at temperatures up to 150.degree. C.