甲烷二氧化碳重整催化劑制備及反應(yīng)性能研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文甲烷二氧化碳重整催化劑制備及反應(yīng)性能研究姓名：陶凱申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：膜科學(xué)與技術(shù)指導(dǎo)教師：王金渠椿範(fàn)立20070615!縫三墨些型重墼堡劍魚墨星鏖堡絲受塞StudyOilpreparationandcatalyticperformanceofcatalystsforcarbondioxidereformingofmethaneAbstractrIk∞土alyticreformingofC磁withC02is

2、industriallyattractivenotonlybecallseityieldssyngaswithH2，COmtio(1)deskableforFischertropsehsynthesis，butalsobecauseitcanbeusedinsolBeplantfavorablecircumstancestotransformeffluentcontainingC02intovaluablefeedstockwhichi

3、sofgreatimportancetoeontrolincreasingenvironmentalpollution。Catalystdeactivationwhichiscausedbycokedepositionand／orsinteringathightemperatureinhighC／HratiofeedisthebiggestproblemofCHdC02reformingreactionPreparationofcata

4、lystwithhi醇activityandstabilityisthekeyofCILgC02reformingreactionAserialofworksaboutCHjC％reformingcatalystsageconductedinthisdissertationFirstbimodalsupportsateobtainedbyincipientwemessimpregnationofcommercialavailablesi

5、licagelQ50withSi02，Zr02andA1203sol，respectively111esurfaceareaporesizedistributionandporevolumeofcatalystsareinvestigatedbyNjphysicalabsorptionExperimentmsultsprovethattheobtainedbimodalsupportshowsalargeandasmallporeatt

6、hesalnetimeandincreasedBET$urfaceareacomparedtoQ一50Platinumsupportedcatalystswitll3wt％metalloadingarepreparedbyincipientwetnessimpregnationofdifferentsupports，includingb／modalones，andthentheircharacterizationandtheeffect

7、onthereactionofC02reformingCI14areinvestigatedbyactivityassay，ChemisorptionXRDandTGA—DTA，besides。theeffectofW／FandchemicaleffectofprecursorsolsarealsoinvestigatedExperimentresultsrevealthatPlatinumsupportedbimodalcatalys

8、tsshowhigherPtmetaldispersionbetterdiffusionofreactantandresultantandhighercatalyticactivity3wt％Pt／A1203bimodalcatalystshowhighestcatalyticactivityunderW但；19h／toolreactionconditionandtheinitialconversionofC02arriveat84％T

9、hedeactivationsofPtsupportedbimodalcatalystsagecausedbysinteringratherthanbycokedepositionSubsequently，CcxzrlqJ覘solidsolutionsupportispreparedbycoprecipitationmethodNickel—supportedcatalystsarcob=tainedbyimpregnationofCe

10、xZrlx02supportsv6thnickelpreettrsorToinvestigatetheeffectofpreparationmethodoncatalyticperformanceofcatalystNixCeyZrl扣2solidsolutioncatalystispreparedbycoprecipitationmethoddirectlyThecharacterizationandcatalyticper、，Bla