Process and apparatus for dehumidification and VOC odour remediation

摘要

An air stream (10) withdrawn from the passenger compartment of a transportation vehicle is subjected to dehumidification and VOC odor remediation by employing a continuously rotating wheel (30) having a substrate surface coated with an adsorbent selective for the adsorption of water and VOCs. The wheel (30) is coated with a unique zeolite adsorbent selected from the group consisting of zeolite Y-74, zeolite Y-84, zeolite Y-85, a low cerium rare earth exchanged zeolite Y-84, a rare earth exchanged zeolite LZ-210 and mixtures thereof. A surprisingly significant increase in the thermal efficiency is possible as a result of the lower regeneration temperature of the adsorbent.