007Characteristics and Interactions between Coal and Carbonaceous Wastes during Co-Combustion

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1、JournaloftheEnergyInstitutexxx(2015)1e9ContentslistsavailableatScienceDirectJournaloftheEnergyInstitutejournalhomepage:http://www.journals.elsevier.com/journal-of-the-energy-instituteCharacteristicsandinteractionsbetweencoalandcarbonaceouswastesduringco-combustion

2、*AshakMahmudParvez,TaoWuKeyLaboratoryofCleanEnergyConversionTechnologies,TheUniversityofNottinghamNingboChina,Ningbo315100,ChinaarticleinfoabstractArticlehistory:ThisworkfocusesonthecombustioncharacteristicsofanAustraliancoal,asuiteofcarbonaceousma-Received15Septe

3、mber2015terials,andtheirblends.AdropinbothignitiontemperatureandburnouttemperaturewasobservedReceivedinrevisedformwhencarbonaceouswasteswereblendedwithcoalatdifferentproportions(10wt%and30wt%).The17November2015ignitionindexvaluesofcoal/polystyreneandcoal/oatstrawb

4、lendsincreasedby78%and52%,respec-Accepted24November2015tivelywhentheblendingratioincreasedfrom10wt%to30wt%.Similarly,2.6timesincreaseincom-Availableonlinexxxbustionindexwasalsoobservedincoal/oatstrawblendduetoalargeincreaseofmasslossratecontributedbythedevolatilis

5、ationofoatstraw.Thesignificantdropinbothpeakandburnouttem-Keywords:peraturesforalltheblendsstudiedinthisresearchdemonstratedthattherewerestronginteractionsInteractionsCo-combustionduringtheco-processingofcoalwithcarbonaceousmaterials,whichcouldbequantifiedbytherootC

6、arbonaceousmaterialsmeansquareinteractionindex(RMSII).Itwasfoundthatcoal/oatstrawandcoal/polystyreneblendshadIgnitionandcombustionindexthehighestRMSIIvalues,whichindicatedthepresenceofstronginteractionsbetweencoalandoatstraw/polystyreneintheblendsduringco-combusti

7、on.©2015EnergyInstitute.PublishedbyElsevierLtd.Allrightsreserved.1.IntroductionCo-processingofbiomasswithcoalisacost-effectiveandenvironmentallybenignapproachtomitigatetheemissionofgaseouspol-lutantsofCO2,SO2andNOxfromfossilfuelcombustion[1e3],andiscommonlyadopted

8、bycoal-firingpowerplantsinwesterncountriesasanoptiontoreducecarbonemissions[4].Itisestimatedthat[5],thesubstitutionof10%ofcoalwithbiomassforthegeneration