Typicalactivitiesofchemicalengineers化学专业英语省公开课一等奖全

年号读法：1979←→nineteenseventy-nine/nineteenhundred(and)seventy-nine;E.g.：inthe1840's

inthe'60's读作：intheeighteenforties（十九世纪四十年代）年代读法：读作：inthesixties（本世纪六十年代）

指十年（decade），采取“基数词加上十位数复数”形式来表示，前面与介词“in”和定冠词“the”搭配。1/38exercise3钠钾磷氨聚合物聚乙烯氯化物粘度烃催化剂炼油厂添加剂sodiumpotassiumphosphorusammoniapolymerpolyethylenechlorideviscosityhydrocarboncatalystrefineryadditive2/38Unit3

TypicalActivitiesofChemicalEngineers3/38ChemicalengineersandchemistWhatistheclassicalroleofthechemicalengineer?Whatarethedifferencesbetweentheworkofchemistsandthatofchemicalengineers?Whataretherelationshipsbetweenchemicalengineersandchemists?Whyshouldchemicalengineersworkwithotherengineers?Questions：4/38Whatistheclassicalroleofthechemicalengineer?FAQTheclassicalroleofthechemicalengineeristotakethediscoveriesmadebythechemistinthelaboratoryanddevelopthemintomoney-making,commercial-scalechemicalprocess.化学工程师经典职责是接收化学家在试验室中所完成发觉并开发它们成为盈利，商业规模化学过程。5/38Whatarethedifferencesbetweenchemicalengineersandchemists?FAQThechemistworksintesttubesandParrbombswithverysmallquantitiesofreactantsandproducts,usuallyrunning“batch”,constant-temperatureexperiments.The

chemicalengineers

typicallyworkwithmuchlargerquantitiesofmaterialandwithverylarge(andexpensive)equipment.6/38Whataretherelationshipsbetweenchemicalengineersandchemists?FAQThechemicalengineerisofteninvolvedin“scalingup”achemist-developedsmall-scalereactorandseparationsystemtoaverylargecommercialplantThechemicalengineermustworkcloselywiththechemist……7/38Thechemicalengineermustworkcloselywiththechemistinordertounderstandthoroughlythechemistryinvolvedintheprocessandtomakesurethatthechemistgetsthereactionkineticdataandthephysicalpropertydataneededtodesign,operate,andoptimizetheprocess.反应动力学数据物理性质数据设计、操作和优化过程8/38Whyshouldchemicalengineersworkwithotherengineers?FAQThechemicalengineermustalsoworkcloselywithmechanical,electrical,civil,andmetallurgicalengineersinordertodesignandoperatethephysicalequipmentinaplant—thereactors,tanks,distillationcolumns,heatexchangers,pumps,compressors,controlandinstrumentationdevices,andsoon。机械、电子、土木、冶金等工程师9/38Chemist：Testtubes,Parrbombs,smallcontainersmallqualitiesofreactantsandproductsCatalyst,samplesChemicalengineer：largeequipment,distillationcolumnslargerqualitiesofmaterialofteninvolvedin“scalingup”Workcloselywiththechemist…andotherengineers10/38Whatarethetypicalactivitiesofchemicalengineers?Tocommercializethelaboratorychemistry,thechemicalengineerisinvolvedindevelopment,design,construction,operation,sales,andresearch.11/38Typicalactivities

ofchemicalengineersdevelopmentdesignconstructionoperationsalesresearch12/381.developmentWhatisdevelopment?Whatdochemicalengineersdointhispart？Whydoweneedpilotplantinthedevelopment?13/38Wordsandexpressionsreactorscale-upproblemmixingimperfectiontemperaturegradientsmaterialsofconstructionMeasurementtechniquesProcesscontrolstrategies反应器放大问题搅拌不均匀温度梯度建造物料测量技术工艺过程控制策略14/381.developmentDevelopmentistheintermediatesteprequiredinpassingfromalaboratory-sizeprocesstoacommercial-sizeprocess.developmentisusuallypartofthecommercializationofachemicalprocessbecause“scale-up”problemisaverydifficultoneWhatisdevelopment?15/381.developmentThechemicalengineerworkswiththechemistandateamofotherengineerstodesign,constructandoperatethepilotplant.Oncethepilotplantisoperational,…evaluatetheprocessfromaneconomicpointofviewChemicalengineersactivities16/381.developmentThepilotplantofferstheopportunitytoevaluatematerialsof‘,measurementtechniques,andprocesscontrolstrategies.Theexperimentalfindingsinthepilotplantcanbeusedtoimprovethedesignofthefull-scaleplantfunctionsofthe“pilot-plant”建造材料测量技术工艺过程控制策略17/382.DesignWhatisdesign?Whatdochemicalengineersdointhispart？What’stheproductofdesignstage?18/382.DesignBasedontheexperienceanddataobtainedinthelaboratoryandthepilotplant,ateamofengineersisassembledtodesignthecommercialplant.Whatisdesign?基于试验室和中试厂取得试验和数据，工程师们集中起来设计工业厂19/382.DesignThechemicalengineer’sjobistospecifyallprocessflowratesandconditions,equipmenttypesandsizes,materialsofconstruction,processconfigurations,controlsystem,safetysystems,environmentalprotectionsystems,andotherrelevantspecifications.Chemicalengineersactivities流速和条件建造材料控制系统环境保护系统20/382.DesignProductsofthedesignstage(1)FlowSheets(2)PandIDrawings(3)EquipmentSpecificationSheets工艺流程图仪器和管线图设备详细图表21/383.ConstructionprocessConstructionphaseCheck-outphaseStartupperiod22/38MajorpiecesofequipmentDistillationcolumnsHeatexchangerPumpCompressorinstrumentalsensorsAutomaticcontrolvalveTheconstructionphaseistheassemblingofallthecomponentsintoacompleteplant23/383.Constructionaveryexcitingandrewardingtimeformostengineers.…seeingyourideasbeingtranslatedfrompaperintoreality…engineersusuallyonshiftworkduringthestartupperiod.Chemicalengineersactivities24/383.ConstructionresultsOncetheplanthasbeensuccessfullyoperatedatitsratedperformance,itisturnedovertotheoperatingormanufacturingdepartmentforroutineproductionofproducts额定性能正常（常规）生产25/384.ManufacturingChemicalengineersoccupyacentralpositionPlanttechnicalservicegroupsareresponsibleforthetechnicalaspectsofrunninganefficientandsafeplantOperations,production26/384.ManufacturingChemicalengineersactivitiesruncapacityandperformancetestsdeterminebottlenecksandremovethemreduceoperatingcost…studywaystoimproveproductqualityandreduceenvironmentalpollution测试设备容量和性能27/385.TechnicalSalescalloncustomersmakerecommendationsonparticularproductstofillcustomer’sneedsbeingsurethatordersarehandledsmoothlySalesengineeristhecompany’srepresentativeandmustknowthecompany’sproductlinewell.28/386.Researchworkwithchemistindevelopingneworimprovedproductdevelopnewandimprovedengineeringmethodsworkonimprovedsensorsforon-linephysicalpropertymeasurementsstudyalternativeprocessconfigurationsandequipmentChemicalengineersactivities29/38AssignmentWhatdochemicalengineersdoinmanufacturing？TranslateFinishexercises3and4onyourtextbookPreviewunit430/38scale-upfigureofReactorstructureforammonia

laboratoryPilotplantCommercialplant31/38TheflowsheetShowalltheequipmentschematicallyWithallstreamslabeled,conditionsspecified(flowrate,temperature,pressure,composition,vi