间歇过程用水网络综合研究

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1、大连理工大学硕士学位论文间歇过程用水网络综合研究姓名：王传强申请学位级别：硕士专业：化学工程指导教师：都健;陈理20080609间歇过程用水网络综合研究StudyonSynthesisofWaterUtilizationNetworkinBatchProcessesAbstractDuetothescarcityofwaterresoul"ceandseriOtisenvironmentpollution,reducingfreshwaterandwastewaterbecomesagreatmatterofurgency．Synthesisofwaternetworkhasbeenprov

2、idedwithdualbenefitsofimprovingtheefficiencyinresourceutilityandreducingtheenvironmentalpollutionbywaterreuse，regenerationreuseaswellasregenerationrecycle．Sotheresearchinwaternetworkdesignhasachievedgreatprogress．Batchproductionisappliedwidelyforfood．medicinechemicalsandfinechemicals．nlereforeconsi

3、derableattentionhasalsobeendedicatedtothesynthesisofbatchwaternetworkswithinrecentdecade．Comparedtocontinuousprocesses．也ereisatimeconstrainttobesatisfiedinbatchprocesses．inadditiontotheconcentrationconstraint．CenterreusablewaterstoragesCandeal砸t}lthetimeconstrainteffectivelyandenhantethewaterrecove

4、ry．Inbatchprocesses，whenthewater-usingoperationfinishes，wastewaterisdepositedinstorages．Itisreusedtofollowingunitsaswaterresources．AndtheresourcesCanbeutilizedwithinthewholeprocess．nleutilizationefficiencyofwaterisimprovedgreatly．T11ispaperpresentsanon·linearprogramming(NLP)mathematicalmodelforfres

5、hwaterandwastewaterminimizationinbatchprocesseswithcenterreusablewaterstorages．Theminimizationoffreshwaterisachievedthroughtheexploitationofreuseandmcycleopportunities．nlecontentofthispaperislistedasfollows：(1)Astothesynthesisofwaterutilizationnetworkinbatchprocesses，thispaperpresentsaNLPmathematic

6、sformulationforfreshwaterminimization．Waterusingunitsarearrangedaccordingtotime．11圮wastewaterfromtheunitsisusedtowaterresourcesforfollowingunits．111estreamswi吐lthesameconcentrationaredepositedinthesamestorage．ItisforbiddentoreusetotheunitwhichconcentrationiSlowerthanwaterresource．TheNLPmathematicsm

7、odelisconsideredaccordingtomassload．inletconcentrationconstraint．111enwesolvethemathematicsmodelbyGAMSandobtaintheminimumfreshwater．Thenweincorporatestoragesandremovetheredundantstreamsbytimeandobtaintheopt