MESOPOROUS ZEOLITE HONEYCOMB MONOLITH AND PREPARATION METHOD THEREOF

摘要

PURPOSE: A mesoporous zeolite honeycomb monolith of the present invention can be effectively used to catalytic elimination of macromolecular organic materials such as dioxin and furan, because it has relatively large pore size of 20 to 100Å and specific surface area higher than 1000m¬2/g, leading to an increased adsorption rate to macromolecular organic materials. CONSTITUTION: The method for preparing a mesoporous zeolite honeycomb monolith includes: (i) homogeneous mixing of 60-90wt.% mesoporous zeolite with 9-35wt.% solid inorganic binder; (ii) adding 1-5wt.% of liquid inorganic binder such as alumina sol or silica to prepare a 100wt.% of mixed solution; (iii) adding 2-10wt.% of an organic binder, 1-8wt.% of a plasticizer, 0.3-5wt.% of a lubricant, and 50-200wt.% of water, based on the weight of the mixed solution; (iv) aging the prepared mixture at an ambient temperature for about 1 day; (v) shaping the aged mixture into a honeycomb monolith followed by drying; (vi) baking the honeycomb monolith in the temperature range of 650 to 800deg.C for 4-6hrs.