Coke deposition in the SAPO-34 membranes for examining the effects of zeolitic and non-zeolitic pathways on the permeation and separation properties in gas and vapor permeations

▸ SAPO-34 membranes with different gas permeation properties were synthesized. ▸ Methanol-to-olefins reaction over SAPO-34 membrane was performed. ▸ Effects of zeolitic and non-zeolitic pathways on permeation properties were examined. ▸ Size and hydrophilicity of non-zeolitic pores are important factors.