SAPO-34 and FAPO-34 coated sheets were prepared for desiccant coated heat exchanger.
SAPO-34 and FAPO-34 coated sheets had better sorption capacity than silica gel.
Performance curves of both desiccant coatings were divided into three sections.
FAPO-34 can be a promising desiccant in a desiccant coated heat exchanger system.