关于深拔型减压加热炉管内结焦问题的研究的中期报告AbstractInthispaper,wereportontheprogressmadeinourresearchontheproblemofcokinginsidethedeep-drawntypepressure-reducingheatingfurnacetube.Wefirstprovideabriefintroductiontotheresearchbackground,includingtheimportanceofthefurnacetubeinindustrialprocesses,aswellastheproblemsoffoulingandcokingthatcanariseduringoperation.Wethendescribethemethodandresultsofourmid-termstudy,whichinvolvedacombinationofexperimentalandtheoreticalapproaches.Ourexperimentalworkinvolvedrunningthefurnaceundervariousoperatingconditions(e.g.differenttemperatures,steamflowrates,andfuelmixtures),andmonitoringtheformationandbuild-upofcokedepositsinsidethetube.Wealsoconductedthermodynamicmodelingtobetterunderstandthefactorsthatcontributetocoking,suchastheinteractionsbetweenfuelandprocessgas,aswellasthethermodynamicsandkineticsofcokeformation.Ourinitialresultssuggestthatthemostsignificantfactorsaffectingcokinginthefurnacetubearetheoperatingtemperatureandthefuelcomposition,withlowertemperaturesandhigherhydrocarbonfuelscontributingtogreatercokeformation.Ourongoingresearchwillfocusondevelopingstrategiesforminimizingcokingandfoulinginthefurnacetube,suchasadjustingthefuelmixandoptimizingprocessconditions.Wewillalsocontinuetorefineourunderstandingofthethermodynamicandkineticprocessesinvolvedincokeformation,withthegoalofdevelopingpredictivemodelsthatcanbeusedtooptimizefurnaceperformanceandreducemaintenancecosts.IntroductionThedeep-drawntypepressure-reducingheatingfurnacetubeisacriticalcomponentinmanyindustrialprocesses,includingoilrefining,petrochemicalproduction,andchemicalsynthesis.Thefurnacetubeisresponsibleforheatingprocessgastohightemperatures,andisoftensubjecttosevereoperatingconditionsincludinghighpressure,hightemperature,andcorrosivegasmixtures.Onecommonproblemthatcanariseduringfurnaceoperationistheformationofcokedepositsontheinnersurfaceofthetube,whichcanreduceefficiency,increasemaintenancecosts,andevencausecatastrophicfailure.Understandingthefactorsthatcontributetocoking