ThischapterdiscussestheThischapterdiscussesthedetailedchemistryofdetailedchemistryofselectedhigh-temperatureprocessesselectedhigh-temperatureprocesseswheregas-phasewheregas-phasereactionsareimportant.reactionsareimportant.14High-temperaturechemistryMostresearchongas-phasereactionshasbeenMostresearchongas-phasereactionshasbeenmotivatedbymotivatedbyenvironmentalissuesenvironmentalissuesinatmosphericinatmosphericchemistryorincombustion.chemistryorincombustion.SignificantadvancesSignificantadvancesinthedetailedunderstandingofinthedetailedunderstandingoffuel-oxidationchemistryfuel-oxidationchemistry,aswellas,aswellasnitrogennitrogen,,sulphursulphurandandchlorinechlorinechemistry,chemistry,havealloweddevelopmentofmodelinghavealloweddevelopmentofmodelingtoolstoolsthatcanbeusedfordesignpurposesforanumberofthatcanbeusedfordesignpurposesforanumberofcombustionandindustrialprocesses.combustionandindustrialprocesses.IncreasedIncreaseddemandforenergyanditsefficientdemandforenergyanditsefficientutilizationutilization,andincreased,andincreasedpublicawarenesspublicawarenessofadverseofadversehealthandenvironmentaleffectshealthandenvironmentaleffectscontinuetobecontinuetobedrivingdrivingforcesforcestoobtainabetterunderstandingoftoobtainabetterunderstandingofcombustioncombustionchemistrychemistry..Gas-phasereactionsGas-phasereactionshavealargeimpactonhavealargeimpactonignitionignitionandandflamestabilizationflamestabilization,onthe,ontheheatreleaserateheatreleaserate,andon,andonthethepollutantemissionspollutantemissions..TheThemainfocusmainfocusofthischapterisontheofthischapterisonthechemistrychemistryoccurringinoccurringincombustioncombustion,whichisaveryimportant,whichisaveryimportanthigh-high-temperaturetemperatureapplication.application.14.1HydrogenoxidationDuebothtoDuebothtoitssimplicityitssimplicityandandtoitstoitspracticalimportancepracticalimportance,hydrogenhasattracted,hydrogenhasattractedextensiveresearchasafuel.extensiveresearchasafuel.HydrogenisHydrogenisanimportantfuel...