焦炉煤气合成甲醇和发电系统关键技术研究

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1、华北电力大学（保定）博士学位论文焦炉煤气合成甲醇和发电系统关键技术研究姓名：张学镭申请学位级别：博士专业：热能工程指导教师：王松岭;陈海平20070501AbstractCokeOVengas(coo)ishighqualityrawmaterialandgasfuelwithhigherheatvalue．COGisrichinChiua，butinfact，theutilizationamountofCOGiSverylitOeandtheleveliSverylow,whichnotonlywas

2、testheresourc圮，butalsopollutestheenvironmentseverely．MethanolsynthesisandelectricpowergenerationbygasturbinecombinedcyclepossesswidespreadavailableprospectofusingCOGbutdesign,integration,simulationofthesystemhaven’tbeenstudied,whichpreventstheutilization

3、ofCOGSo，thekeytechnologyofusingCOGtosynthesizemethanolandgenerateelectricpowerisstudiedinthepaper．111emainresearchworksofthepaperincludeasfollows：Theperformanceofproducingmethanolsynthesisgas、撕thCOGaslawmaterialbycatalyst-basedpartialoxidationmethodisstu

4、diedinthepaper．11∞influenceofoxygen-carbonratio，water-carbonratioandsupplementarycarbonbeforestoveontheperformanceofcatalyst-basedpartialoxidationand陀agtionproductcompositionisanulyzedinthepaper．11"calculationprogramofmethanolsynthesismoduleiswritten,and

5、theprocessflowofmethanolsynthesisbasedonLurgigasphaseandliquidphasetechnologyaredesignedandsimulatedbyAspenPlussoftware．Themathematicmodelsofkeyequipmentsofgasturbinecombinedcyclearebuiltinthepaper．Theoff-designperformancemodelofaxial—flowcompressorisbui

6、ltbasedonbladeelementmethod．Anothermethodofextrapolatingcompressorperformancemapbasedonsimilaritylawsisputforward．11"resultsobtainedbybladeelementandextrapolationmethodsarerespectivelyverifiedinthepaper．Thedistributionandflowofcoolmgairisstudiedbasedonse

7、nli-ffxpaienceformula,andtheperformancecalculationmodelofsimplecycleofPG6541Bgasturbineisbuiltandproventobetrue．11地conceptionofvaryingloadroutechartisputforward,whichisproventobetheoptimalloadregulationway．Heattransferdensityofheatexchangerofheatrecovery

8、steamgenerationisdefined,andit’Scalculationmethodondesignconditionandoff-designconditionisstudied．111cperformancecalculationmodelofsingle-pressureheatrecoverysteamgenerationwithanintegraldeaeratorisbuiltinthepaper．111eperf