ZSM5分子筛膜制备和其表征.pdf

PREPARATION AND CHARACTERIZATION OFZSM..5 ZEOLITE MEMBRANE MATERIALS ABSTRACT MFI zeolitecrystal(ZSM·5)has a system ofintersecting channels withpore 】[Il,and issuitableforseparation ofmany industrialraw materials because oftheirexcellent characteristics such as thermal stability,acid -5 zeolitemembranes have beenreceived increasiIlg attention inmany fieldsbecause oftheadjustable Si/A1ratioandgood hydrophily ·5 zeolitemembranes Can beused as separation membrane mate矗a1. Compared withtraditionalseparationmethods,echniques forseparation has advantages oflessenergy consumption . The processes ofzeolitemembrane preparation involving position of synthesis solution,hydrothermal synthesis conditions have agreat influence On the performance thispaper,the influences ofthemodified surface of the position ofsynthesis solution,preparation of seed layers were investigated. (1)Electrolessplating was used to modify the surface ofthe ofelectrolessplating solutionwere controlled toobtain aIlunifo姗plating layer on thecarriers·The impact ofdifferentplating timeformorphology ofthecamer ponent gaspermeation testwas alsoprepared. (2)Zeolite membranes were prepared onthemodified carriersurfacebvelectroless plating·Analyzed themechanism ofthemetal elements topromote thegrowth zeolite membranes and found thatzeolitemembrane crosslinking effectispeffect on plating. (3)Nano crystal seedswere synthesized by influences ofsynthetic ofliquid watercontent,crystallization timewere systematicallv methods were used toactivated thezeoliteseedsand found that thecatalytichydrocracking template method Was areference forthe 万方数据 removal ofzeolitemembrane template agent in thefuture. (4)ZSM-5 zeolitemembrane was synthesized by seeding growth influences ofdifferentseeds,prepa