%0 Journal Article
%T ConversionofMethanolUsingModifiedH-MORZeoliteCatalysts
%J ´ß»¯Ñ§±¨
%P 412-417
%D 2011
%R 10.1016/S1872-2067(10)60187-8
%X £¿Theconversionofmethanolwascarriedoutovervariousmordenitezeolitecatalyststoevaluatetheircatalyticperformance.Apost-preparationtreatmentoftheH-MORcatalystbyhalogenationwithNH4ClorNH4FandbyhydrohalogenationwithHClorHFwascarriedoutanditseffectonmethanolconversionreactionsat100¨C300¡ãCinacontinuousflowreactorwasinvestigated.Theas-synthesizedH-mordenite(H-MOR)isgenerallymoreactiveduringdimethylether(DME)productionthantheNH4-MORandNa-MOR.FluorinatedtreatmentwithHForNH4FsignificantlyimprovedthecatalyticactivityduringmethanolconversionandtheformationofDMEincomparisontochlorinatedtreatmentswithHClorNH4Cl.ThisisprincipallyattributedtothehigherSi/Alratioandanincreaseinthenumberofacidsitesandtheirstrength.HalogenationtreatmentwiththeacidsofbothF¨CorCl¨CgavethehighestconversionactivityforDMEproductioncomparedtohalogenationtreatmentswiththesaltsofthesamehalogens.Zeolitedealuminationbytheacidswasmoreprofoundthanthatbythehalogenionsalts,whichresultedinadecreaseinthecrystallinityandcrystallitesizesofthezeolite.
%K methanol
%K conversion
%K H-MOR
%K halogenation
%K hydrohalogenation
%U http://www.chxb.cn/CN/abstract/abstract20327.shtml