医疗废物热解特性及动力学模型研究

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1、妞面揖⑧天津大蓦中国近代第一所大学博士学位论文__■啊●_●■■0●爿j}一■疆■■●lP■■■■_一级学科：动力工程殛工挥热物珲学科专业：热能工程作者姓名：邓娜指导教师：张于峰教授天津大学研究生院2005年11月Pyrolysistechnologyisregardedasamostpotentialthermochemistrytreatmenttechnologyformedicalwastes．11”hingeofitstechnologicdevelopmentanddesignconsi

2、stsinthethroughknowledgeonpyrolysischaracteristicsofmedicalwastes．Inthisdissertation，organicmedicalwastescompositionsaredividedinto7kindsbymaincomponentcharacteristics，and18typicalcompositionsaleselectedfromabovekindsofwastesfortheserialexperimentaland

3、modelingstudy011pyrolysischaracteristics．Themainworkandresultsareasfollows：1．Experimentalandmodelingstudyonpyrolysischaracteristicsofmonoeomponentmedicalwaste：(1)Proximateanalysis，ultimateanalysisandLHVofthemostofmedicalwastecompositionsareobtainedbyex

4、perimenttoprovidebasisdatumforpyrolysischaracteristicsstudy．(2)Non-isothermalkinetictestsalecarriedoutusingathermogravimetricanalyzer(TGA)withN2forthermaldegradationofmonoeomponentmedicalwaste．AccordingtoTG／DTGcnl-ves，takingaccountofsampleinformationof

5、maincomponent,proximateanalysis，andultimateanalysis，indetail，mechanismanalyzingofpyrolysisreactionreasonablyexplainanddescribeweightlossbehaviorofallsamples；accordingtoDTAcurves，thestudyreportsheatchangeinpyrolysisprocess；thepropertiesofpyrolysisresidu

6、esofwastesamplesarealsogiveninthedissertation．Theresultsrevealsthatpyrolysisbehaviorsarecomplicated，andevidentlydifferfromheterogeneityofwastematerials；byreasonofdifferenceincharacteristicimpurityandtreatingprocessformedicalwastesaimingtospecialpurpose

7、formedicalservice，eveninhomogeneouswastesample，thepyrolysischaracteristicsvaryfromeachothertoo．(3)Threeeonventionalmethods：Coats·Redfern、OzawaandKissingerareusedtodeterminethekineticsparametersonthermaldegradationallmedicalwastes．11heresultsarediscusse

8、dandcomparedwithaviewofpyrolysismechanism．(4)Atmitivemechanismisputforwardonpyrolysisforsinglemedicalwastecomposition,andthecorrespondingmodelcouldsatisfactorilydescribethermaldegradationprocessofallsamples．Theeffectoftheoriginalwasteco