Microwave Assisted Synthesis of Nano Zeolite Seed for Synthesis Membrane and Investigation of its Permeation Properties for H2 Separation

Mfi-type zeolite membranes (zsm-5) were prepared on (alpha)-alumina tubular supports and tested for separation of h2/co mixtures. the effect of pressure and temperature on h2 and co flows and selectivity was investigated. the best results in this work were obtained with a zsm-5 membrane prepared over a porous (alpha)-alumina tube seeded with zeolite nanocrystals synthesized with microwave technique. in this case the h2 permeance was obtained 2.8 × 10^-6 mol/ (m^2.s.pa) with a h2/co ideal selectivity of 4.9 at 373 k. the permeation results of four gas (h2, co, n2, ch4) on the synthesized membrane were also investigated.