Seediscussions,stats,andauthorprofilesforthispublicationat:http://www.researchgate.net/publication/227791525FlowreactorstudiesandkineticmodelingoftheH2/O2reactionARTICLEinINTERNATIONALJOURNALOFCHEMICALKINETICS·JANUARY1999ImpactFactor:1.52·DOI:10.1002/(SICI)1097-4601(1999)31:2<113::AID-KIN5>3.0.CO;2-0CITATIONS146READS1164AUTHORS,INCLUDING:Frederick.L.DryerPrincetonUniversity340PUBLICATIONS9,096CITATIONSSEEPROFILEAvailablefrom:Frederick.L.DryerRetrievedon:29October2015FlowReactorStudiesandKineticModelingoftheReactionH/O22M.A.MUELLER,T.J.KIM,R.A.YETTER,F.L.DRYERDepartmentofMechanicalandAerospaceEngineering,PrincetonUniversity,Princeton,NewJersey08536Received10June1998;accepted20August1998ABSTRACT:ProfilemeasurementsoftheH2/O2reactionhavebeenobtainedusingavariablepressureflowreactoroverpressureandtemperaturerangesof0.3–15.7atmand850–1040K,respectively.ThesedataspantheexplosionlimitbehaviorofthesystemandplacesignificantemphasisonHO2andH2O2kinetics.TheexplosionlimitsofdiluteH2/O2/N2mixturesextendtohigherpressuresandtemperaturesthanthosepreviouslyobservedforundilutedH2/O2mixtures.Inaddition,theexplosionlimitdataexhibitamarkedtransitiontoanextendedsecondlimitwhichrunsparalleltothesecondlimitcriteriacalculatedbyassumingHO2formationtobeterminating.Theexperimentaldataandmodelingresultsshowthattheex-tendedsecondlimitremainsanimportantboundaryinH2/O2kinetics.Nearthislimit,smallincreasesinpressurecanresultinmorethanatwoorderofmagnitudereductioninreactionrate.Atconditionsabovetheextendedsecondlimit,thereactionischaracterizedbyanoverallactivationenergymuchhigherthaninthechainexplosiveregime.Theoveralldataset,consistingprimarilyofexperimentallymeasuredprofilesofH2,O2,H2O,andtemperature,furtherexpandthedatabaseusedforcomprehensivemechanismde-velopmentfortheH2/O2andCO/H2O/O2systems.SeveralrateconstantsrecommendedinanearlierreactionmechanismhavebeenmodifiedusingrecentlypublishedrateconstantdataforH�O2(�N2)�HO2(�N2),HO2�OH�H2O�O2,andHO2�HO2�H2O2�O2.Whenthesenewrateconst...
