unit operations for food industry外语英文电子书

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1、ApplicationsinFoodIndustries&BiochemicalTechnologiesQUESTION:QUESTION:•Whatdothisproductshaveincommon?2©LucianGavrila–UnitOperationsANSWER:ANSWER:•TheyarealltheproductofaPROCESSINDUSTRY.SSECORP3©LucianGavrila–UnitOperationsPROCESSINDUSTRYPROCESSINDUSTRY–Indust

2、rywherevariousrawmaterials(ofmineral,animalorvegetalorigin)aretransformedthroughphysical,chemicalorbiochemicalprocessesinordertoobtainproductswithhighervalueandutility.4©LucianGavrila–UnitOperationsExamplesofprocessindustries:Examplesofprocessindustries:•Chemi

3、calindustry•Petroleumrefiningindustry•Petrochemicalindustry•Pulpandpaperindustry•Foodandbeverageindustry•Pharmaceuticalindustry•Metallurgicalindustry•Powerindustry5©LucianGavrila–UnitOperationsTechnology,technologicalprocessTechnology,technologicalprocess••Tec

4、hnologyTechnology=thewholeofknowledgeaccordingmeansandprocessesusedforproducinggoodsinrationalandorganizedmanner.••ProcessProcess=evolutionofasystem,intimeand/orspace.••TechnologicalprocessTechnologicalprocess=achainofstepsfollowedbytherawmaterial(s)inordertob

5、ecameafinishedproduct.6©LucianGavrila–UnitOperationsThetechnologicalprocessThetechnologicalprocessRawmaterial(s)INTECHNOLOGICALPROCESSFinishedproduct(s)OUTBlackbox7©LucianGavrila–UnitOperationsThetechnologicalprocessThetechnologicalprocess•Howevercomplexitmayb

6、e,atechnologicalprocessiscomposedbyachainofoperationsbasedonphysicaland/orchemicalprocesses:–preparatoryoperationsforrawmaterials(usualphysicalprocesses);–molecularchangesoftherawmaterials’components(chemicalorbiochemicalprocesses);–separationprocessesforfinit

7、eproductisolationandpurifying(usualphysicalprocesses).8©LucianGavrila–UnitOperationsThetechnologicalprocessThetechnologicalprocessRAWENERGY,MATERIALSINFORMATIONSPreparationTransformationPurge(Reaction)SeparationPRODUCTSRESIDUES9©LucianGavrila–UnitOperationsThe

8、technologicalprocessThetechnologicalprocessRawmaterial(s)RawmaterialpreparationReaction(chemicalorbiochemical)SeparationRecycleprocessBy-product(s)Finishedproduct(s)10©LucianGavril