納米ZSM-5沸石上C-,4-液化氣低溫芳構化反應研究.pdf

1、大連理工大學碩士學位論文納米ZSM5沸石上C液化氣低溫芳構化反應研究姓名：葉娜申請學位級別：碩士專業(yè)：工業(yè)催化指導教師：郭洪臣20060601塑鲞壟堅蘭鯊互=蘭魚鎏些墨堡望莖塑些星塑莖StudyontheLow—temperatureAromatizationofC4LiquifiedPetroleumGasoverNanosizedZSM。5ZeoliteAbstractc4liquefiedpetroleum(C4LPG)gasri

2、chinbutylenesismainlyby—producedfromthepetrolumerefiningandpetrochemicalindustriesForalongtime，themajorityofC4LPGhasbeenconsumedasfuelandtheutilizationofitforchemicalpurposeiSquitelOWOptimizationutilizationofC4LPGforprod

3、uctswithhi【ghadditionalvalueisnotonlyanimportantwaytoimproveeconomicbenefit，butalsohasprofoundsocialsignificanceInthisstudy，wefocuseontheutilizationofC4LPGtoproducehi曲octanenumbergasolineviathe10W—temperturearomatization

4、ofbutylenesAfterthecompleteconversionofbutylenestheresidualalkanescanbeusedtoproducepropyleneandethylenebysteamingcrackingorusedasfuelformotorsNanosizedZSM5zeolitehasbeenappliedinOTAprocessforFCCgasolineupgradeduotoitsex

5、cellentperformanceforaromatization，isomerization，alkylationandstrongeabilitytoresistcokingInthispaper，thearomatizationofthebutylenesofC4LPGiscomparativelystudiedwithHZSM一5catalystswithdifferentcrystalsizeundermildtempera

6、turenlecrystalsizeofzeoliteisanimportantfactorthataffectsthepropertiesofthecatalystResultsshowthatllano—sizedHZSM一5catalystpossesseshi曲toleranceabilityforcokeandfavorablearomatizationperformanceduetoitssmallsizeandshorte

7、rchannelofmicroporeOnthebasis，theeffectsoffeedingimpuritiesandreactionconditionsonthearomatizationofthebutylenesofC4LPGovernano—sizedHZSM。5catalystareinvestigatedResultsshowthat，bothdieneandalkalinenitrogen—containingcom

8、poundsallhavenegativeinfluencesonthearomatizationstabilityofthecatalystundermildtemperatureComparatively，thenegativeinfluenceofthealkalinenitrogencontainingcompoundsismuchstrongerthanthatofdieneThearomatizationstabilityi

9、sobviouslyimprovedunderthehydrogenambienceduotocokingprohibitionduringthereactionReactiontemperature，pressureandWHSVLPGalsoshowsignificantinfluencesontheperformanceofthecatalystTheoptimumreactionconditionsarecenteredarou

10、nd450℃，20MPaandWHSVLPG=O83h一Highcokingspeedofthecatalystisseenwhenhightemperature，pressureandWHSVLpGconditionsareused，UndertheoptimumconditionsofV(H2)／V(LPG，liquid)=260，WHSV=O83h1，pressure=30MPaandtemperature=450℃thecata