CeMn复合氧化物上PTA尾气的催化燃烧黄小康

Ce－MnPTA*11111121.2100092.210009Ce－MnPTA。W/V、、、W/V200g·min/L0.8%30000h－1350280℃、95%。、、CO2H2O440℃。Ce－MnCATALYTICCOMBUSTIONOFPTAOFF-GASOVERCe-MnCOMPOSITEOXIDESHuangXiaokang1ChenXian1TangJihai1LiuFengfen1CuiMifen1QiaoXu121.CollegeofChemistryandChemicalEngineeringNanjingUniversityofTechnologyNanjing210009China2.StateKeyLaboratoryofMaterials-OrientedChemicalEngineeringNanjingUniversityofTechnologyNanjing210009ChinaAbstractCatalyticcombustionofPTAoff-gaswasstudiedoverCe－Mncompositeoxides．TheeffectofW/Vimpuritiestheinlettemperatureofcatalystbedtheconcentrationoforganicimpuritiesandtotalspacevelocityoncombustionperformanceofp-xyleneandmethylacetatewereinvestigated．Theresultsshowedthat95%removalrateofp-xyleneandmethylacetatewasobtainedwhileairwasusedastheoxidantthereactionconditionwasasfollowsW/Vimpuritieswasabove200g·min/Lvolumefractionoforganicimpuritywasbelow0.8vol%thetotalspacevelocitywaslessthan30000h－1andthereactiontemperaturewas350℃and280℃respectively．Thecombustionofbinaryandternarymixtureconsistingofp-xylenemethylacetateanddibromomethanewasresearchedseparately．Itwasfoundthatthecompleteremovingtemperatureofbinarymixtureconsistingofp－xyleneandmethylacetatedependsonp-xyleneandthecompleteremovingtemperatureoftheternarymixtureis440℃higherthananysinglecomponentbecauseofthecompetitionadsorptionofCO2andH2Ogeneratedfromcombustionofmethylacetateandp-xylenewithdibromomethaneonthecatalystactivesite．KeywordsCe－MncompositeoxidesPTAcatalyticcombustion*8632009AA03Z504。0PTA、1165g/m32900mg/m3。。PTA。PTAPt、Pd、Rh3-4、、5-67。Ce－MnPTAPTA、89201110295DOI:10.13205/j.hjgc.2011.05.030。11.1Ce－Mn。nCe∶nMn=1∶5CeNO33·6H2O、MnNO32。pH10。6hpH120℃10h550℃5h、。1.2PTA。24mm4mm。0.71～1mm30。、SP－6800ATCD。COCO2O2。H225mL/min1mL40℃40℃TCD60℃150mA。22.1W/V1%1L/minW/VWV1。1W/VW/Vg·min/L/℃/%/℃/%30035095.228099.620035095.128097.310035084.228074.31350℃W/V300g·min/L100g·min/L95.2%84.2%。280℃W/V300g·min/L100g·min/L99.6%74.3%。18PTA。11%1L/minW/V。1W/VW/V。11W/V200g·min/L95%。a—b—1W/V2.21%W/V200g·min/L30000h－12。2。207℃7%239℃95.1%。9TiO299201110295CuMnOx。190℃95%200℃。。a—b—22.3330000h－10.2%0.4%0.6%0.8%1.0%。30.2%～1.0%。1.0%310℃350℃40%95%。0.8%240℃270℃45%98%。10。2.4424000h－1a—b—330000h－136000h－142000h－1。0.4%0.8%。4。350℃30000h－199%270℃30000h－198%。PTA8000m3/h2PTA。110.17%10000h－1320℃。0.4%、24000h－11120℃340℃。2.55。001201110295a—b—45a、1.0%1L/min。n∶n=1∶1。5b、、1.0%1L/min。n∶n∶n=1∶1∶1。5a。5b、、290360℃410℃440℃。CO2H2OCO2H2O。531W/V、、、W/V200g·min/L0.8%30000h－195%、350280℃。2、。、、、CO2H2O440℃。1．PTAJ．200733138-39.2．P．CN1013015702008-06-20.3ChenBSCarsonJGibsonJ．DestructionofPTAoffgasby591012011102955CW4。。320～4792mg/kg12～16d。。1．J．20023419-13．2．J．200630339-40．3．J．200527475-78．4．J．200018462-64．5．J．20029629-31．6GB3838—2002S．7．J．19971718-13．8GB/T16488—[e-mail]2011－02－22櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅101catalyticoxidationJ．ChemicalIndustries200389179-189.4HerbertKJ．TheroleofpreciousmetalsintheglobalgrowthopportunitiesforstationaryemissioncontrolJ．PreciousMetals199620147-160.5AgueroFNBarberoBPGambaroL．CatalyticcombustionofvolatileorganiccompoundsinbinarymixturesoverMnOx/Al2O3catalystJ．AppliedCatalysisBEnvironmental200991108-112.6BertWRobertSPieterV．CatalyticdestructionofhalogenatedhydrocarbonsPUS7476374.2009-01-13.7WuYSZhangYXLiuMetal．CompletecatalyticoxidationofoxyleneoverMn-Cuoxidespreparedusingaredox-precipitationmethodJ．CatalysisToday201019283-289.8．Ce－MnJ．201032631-35.9．TiO2CuMnOxJ．200873012-15.10SpiveyJJ．CompletecatalyticoxidationofvolatileorganicsJ．IndustrialandEngineeringChemistryResearch1987262165-2180[e-mail]2011－04－0895201110295