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X300400(),,,,,,,,,,,,,,,,()1,/,,,,1,,,,[1]1[1,8,10],,,,1%1.5%,,2090,70%,20,60%[2]512007,17(2)X:,1951:(022)86810797,,,19602060,PVC,2060,,,,1115kg/cm2(G),,,6090,,(),(Ray2chem),2[1,4]20,(1),,,,,,,,(2),,,(3),50%,,,,(4),-,(5.5,80.1),,3040,,,,-,,(5),,,,,2,(6),,,1617,300m61CHEMICALENGINEERINGDESIGN2007,17(2)2,,(7),,,(),(8)P&I,(isometricdrawings):SH/T3040-2002,,,3[7],,,:;;;,,,50%,,,,311,,,,150,,23,,3,,,:(1),,(2),150(3),300kt/a520kt/a300600kt/a,,,,312,712007,17(2),,,:(1),(2),(3),(4),150313(Raychem)[3]31311(1):CIDI;;;35;40(2):50;40mm;40TC60(3):100mm(4):CIDI15HQTV(5):,,31312(1):;-8;35;(2):;30;30;10;30(3):;;;12mm150mm(4):BTV2-CT:QTVR2-CT;XTV2-CT:KTV2-CT;:6km(5):;;;;;,31313(1):;-13;35(2):;:25;80()200()(3):80mm100mm150mm(4):PC10QTVR2-CT2000m;15QTVR2-CT1500m;5KTV2-CT1000m;15KTV2-CT1200;Monitrace200NPC(5):Monitrace200N,,,;;,;31434[1],34[3,5,10],,81CHEMICALENGINEERINGDESIGN2007,17(2)4411(1),,,(2),,5,,6,4120165018/kWh,315kg/cm27075/t,01260128/kWh2152191112kg/cm2,20/t,01074/kWh,818101850%,,5,,,,56413/,,,1/21/3,414,,,,415,,,,416,,912007,17(2),,,,,,,5[47,9],,Fluent,,,511(1),,(2),,,,,(3),(4)(5)512,(1)(2),(3),(4)(5),,(6),(7),,(8),,,(9):40m,,,100mm,;40m,L,3040m,U,,U,(10),16kg/cm2,(11),,6(1),,,(34)02CHEMICALENGINEERINGDESIGN2007,17(2)5511=018,(12)(15)(16)(7)(8),:b1=21795143:Rb1=9917365%99199999710%512=019,(12)(15)(16)(7)(8),:b2=11994129[4],:Rb2=971670%9919991066%6(1),;,,,,,(2),(3)0180,;0180,0185(4),931448%991664%751175%941408%=01800185,,9917365%99199999710%971670%9919991066%(5),-,[8,9],,;1Ben2HaimY,ElishakoffI.Convexmodesofuncertaintyinap2pliedmechanics.Amsterdam:ElsevierScience,19902Ben2HaimY.Anon2probabilisticconceptofreliability.Struc2turalSafety,1994,14(4):2272453,[J]..,2003,25(5):5215294.[M].:,19845.[J].,2003(6):11146GB150-1998,[S]7.[J].,2004,33(4):17198,.[J].,2005(1):31,339.[J].,2005,26(4):1820(2006-11-06)(20),,,(2),,,(3),,,,,,(4)1E.Fisch,Winterizingprocessplants,ChemicalEngineering,August20,1984,p.1281432VeraLamandChetSandberg,ChoosetheRightHeat-TracingSystem,Chem.Eng.Prog.March1992,p.63673Raychem(),(C20015/01)4..,1996,26(2):51565JosephRadle.Steamtracingkeepsfluidsflowing.ChemicalEn2gineering,Feb.1997:94976.2006,36(3):43477[M].20051:4134778.Ó2.589:7147169.[J].,1992(12)(2006-09-30)43CHEMICALENGINEERINGDESIGN2007,17(2)ABSTRACTSAnalysisandOptimizationoftheRemovingC9TowerDistillationProcessinPyrolysisGasolineHydrogenationPlantHaoZhao(TianjinUniversity,Tianjin300072)IncreasetheseparatingeffectandtheC8aromaticsyieldbyusinghighefficientregularpacking.Inordertosolvetheeffectproblem,amodelofdistillationprocessforpackingtowerissetuptocalculatethereasonableminimumrefluxratioandbottomtemperatureofthetower.Atthesametime,aoptimumoperationprogramisputfor2wardandusedinproduction.KeywordspackingtowermathematicalmodeloptimizationProcessDesignofMethylAcetateHydrolysisShiYouli(PetrochemicalIndustrialDesignInstituteofFujianProvince,Fuzhou350001)Basedontheanalysisofdomesticmethylacetatehydrolysis,thenewprocessofcatalyticdistillationinsteadofthetraditionalfixedbedreactorputforwardbyFuzhouUniversitycanbeused.Thisarticlemainlydiscussestheprocessoftheengineeringdesign.KeywordsmethylacetatehydrolysisprocessdesignTheElaborationonLiquid2liquidEquilibriumComputerAlgorithmRoutineLvHuichao,etal(AnyangInstituteofTechnology,Anyang455000)Theliquid2liquidequilibriumdataarethebasisonwhichtheex2tractionapparatusisdesigned.Whenthedataareunavailable,thecompositionofeachphasecanbecalculatedbycomputerprogramun2dertheconditionofreasonablethermodynamicsmodelandtakingintoaccountsomedetails.Thesedetailsareelaboratedinthispaper.Keywordsliquid2liquidequilibriumactivitycoefficientmodeldetailsProbeonPivotalProcessofProductionControlinSyntheticAmmoniaCombiningMethanolYanXin(HunanChemicalIndustryTechniqueandProfessionCollege,Zhuzhou412004)Brieflyintroducethegeneraldevelopingsituationandthenewestdevelopmentinthesyntheticammoniacombiningmethanol,sumupandanalyzethecharactersofthenewesttechnology,andthepivotalprocessesofproductioncontrolaremakingcoal2gas,transform,finedesulfurization,ammoniasynthesis,removingcarbondioxideandsoon.Keywordssyntheticammoniacombiningmethanolprocessra2tioofmethanolandammoniaproductioncontrolpivotalprocessesDiscussionBrieflyonWinterizingPetrochemicalProcessPlantsXueZuyuan(ChinaTianchenChemicalEngineeringCorporation,Tianjin300400)Inordertomaintainthenormaloperationinwinter,putforwardthenormalwinterizingproceduresandcomparetheirapplications.Pointouttheconsiderationsindesignandoperation.Makesomesug2gestionsforreference.Keywordswinterizingwinterizingdesigncriteriasteamtrac2ingelectrictracingDataFittingofMulti2parametersSheetsinApplicationofProcessEquipmentCAPPDingWenjie,etal(NingxiaUniversityMechanicalEngineeringColleges,Yinchuan750021)InthedevelopmentandapplicationsofprocessequipmentCAPP,theformulawhichisfittedfrommulti2parameterdatasheetscanbebetterusedtomeetdemandsoffreeformanualbookconsultationandautomaticcalculation.Usingdatafittingsoftwaretools,suchasEx2celandTableCurve,followingtherulesofbatchesinfittingandtheconsensusofformulastructure,themulti2par