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过程工程学报 2004
InfluenceofCatalystTypeandRegenerationonUpgradingofCrudeBio-oilthroughCatalyticalThermalCrackingKeywords: catalyticcracking,biomass,catalyst,regeneration Abstract: Catalysts,suchasHZSM-5(Si/Al=50),HZSM-5(25),zeolite5A,CaHZSM-5(50),ZnHZSM-5(50),andKaolinwereusedinupgradingofcrudebiomassoilfrompyrolysisinafixed-bedreactorunderatmosphericpressure,inordertoinvestigatetheeffectsofcatalysttypeontheyieldofdesiredproduct.Ablanktestwascarriedoutinabedofinertpackingstodeterminetheextentofnon-catalyticalthermalcracking.Thegasproducedinthereactionwasanalyzedbythechemicalabsorptionmethod.Amongthosecatalysts,HZSM-5(50)gavethehighestyieldofthedesiredorganicdistillatewhileKaolingavetheleastformationofcoke.RegenerationofdeactivatedHZSM-5(50)wasstudied.Intermsofyieldoforganicdistillateandformationrateofcoke,thecatalyticactivitydidnotchangemuchduringthefirst3timesofregeneration.
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