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1、美国提出化工工艺设计新方向（TheUnitedStatesproposesnewdirectionsinchemicalprocessdesign）ThisarticleiscontributedbyliukaihappyPdfdocumentsmayexperiencepoorbrowsingontheWAPside.ItisrecommendedthatyoufirstselectTXT,ordownloadthesourcefiletothelocalview.FiftyCHEMICENGINEERINGDESIGNALChemi
2、caldesign2000,10(3)TheUnitedStatesproposesnewdirectionsinchemicalprocessdesignZhuZengHui1XAbstractkeywordsChinaChemicalInformationCenterBeijing100029Thispaperintroduces7subjectsforimprovementofchemicalprocessdesignbasedonthe2020technologyassumptionintheUnitedstates.Chemi
3、calprocessdesignintheUnitedStatesTheU.S.government,therelevantindustriesandacademicdepartmentspublished52020yearsoftechnologicalassumptionsin1996,6.Subsequently,theAmericanchemicalindustrytoachievethegoal,accordingtotherequirementsofchemicalprocess,andreachedthedevelopme
4、ntdirection,whichputsforward7topicsofprocessengineering,thedesignprocessimprovementdevice,soastoimprovethecompetitiveabilityintheglobalmarket.The5chemicalengineeringprogressin6toconductasystematicreview,themaincontentsofexcerptsinreferenceforresearch.Inrecentyears,proces
5、sengineeringhasundergonetremendouschanges,mainlyembodiedintwoaspects:thedevelopmentofnewconcepts(suchasunitoperationandheatexchangenetwork)andnewanalysisandoptimizationmethods.Throughthedynamicanalysisofthechemicalindustry,canbeseentobeintheprocessofchangewilloftenencoun
6、tergreatresistance,themainreasonisthecharacteristicofchemicalindustryiscapitalintensive,oncetheprocessoffailurewillcausehugefinanciallosses.Throughtheanalysisofthecostcompositionofchemicalsandplasticsproduction,itcanbeseenthatthecapitalconstructioninvestmentandrawmateria
7、lsaccountforthemajorityofthetotalcost.Becausethedevicecostsalot,itoftenrunsforyears.Manydevicesnowhave50yearsoflife,andrebuildingthem,expandingcapacity,andsolvingweaknessesaremuchcheaperthanbuildinganewdevice.Accordingtothistrendanalysis,about4oftheproductssoldin2020will
8、stillbeproducedbytheequipmentoperatedin1999,buttheequipmentperformance,capacityexpansionandpollutionred
