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1、Articlepubs.acs.org/EFExperimentalInvestigationonHydrogenProductionbyAnthraceneGasificationinSupercriticalWaterHuiJin,*ShankeLiu,WenwenWei,DemingZhang,ZeningCheng,andLiejinGuoStateKeyLaboratoryofMultiphaseFlowinPowerEngineering,Xi’anJiaotongUniversity,Xi’an710049,ChinaABSTRACT:Charconversioni
2、stherate-determiningstepforcoalgasificationinsupercriticalwater,becausethemaincomponentsofchararepolycyclicaromatichydrocarbons(PAHs)withchemicalstability.AnthracenewasselectedasthemodelPAHcompoundtoexplorethegasificationmechanismofcoalinsupercriticalwater.Theexperimentalparametersinvestigated
3、withautoclaveswerewithinthefollowingranges:temperature,600−750°C;residencetime,5−30min;andpressure,23−25MPa.ThemaingasproductswereH2andCO2.Theliquidintermediateswereanalyzedbygaschromatography−mass-selectivedetection(GC-MSD)forqualitativeanalysisandquantitativeanalysis,respectively.Benzenean
4、dnaphthalenewerefoundtoberelativelystablecompoundsintheliquidproducts.Effectivecatalystandappropriatetemperaturewereobtainedtoenhancethegasificationprocess.10,28,291.INTRODUCTIONviewtoknowaboutthereactioncharacteristics,suchasChinaisabundantincoalresourceandsufferingfromtheheavydesulfuration,de
5、nitration,andpyrolysis.Anthraceneisthepollutioncausedbycoalburningintheair.Coalgasificationforsimplestpolycyclicaromatichydrocarbon(PAH)offormula30,31hydrogenproductionismuchcleanerfortheenvironmentthanC14H10,consistingofthreefusedbenzenerings.Itappearsdirectburning,becausemosttheemissionsare
6、collectedinthecommonlyinthecoalchemicalindustryandthepetrochemicalgasificationprocess.1−3Supercriticalwatergasificationisacleanindustry,especiallyintheincompletegasificationprocessof32,33andeffectivemethodinconvertingcoalwithnonitrogenoxidecoalgasification.Therefore,anthracenewasselectedasaorsulf
7、uroxideemission.Supercriticalwaterprovidesamodelcompoundtoexplorethecompletegasificationmethod.homogeneousandrapidreactionenvironmentsforcoalTheproductdistributionwasinvestigatedastheresidencetimegasification,becauseofthefollowinguniqueproperties:4−6
