X()730060LL/HD,1(PE),1939195190,,,56,2003,56100kt/aPE,PE(LDPE)(LLDPE)(MDPE)(HDPE)LDPE/LLDPEHDPE,,PE,,,PE,LL/HD2,(),(019410197g/cm3)(0191501940g/cm3,)(019150193g/cm3,,)(018601914g/cm3)HDPELDPELLDPELL/HD,1968,,,(),3,LL/HD:UnivationUnipolPEBPIn2noveneBASELLSpherileneLL/HD,,311,1-1-92006,16(4)X:1987:(0931)7557201-3329,,,,,,,LL/HD11LL/HD312(1)Univation12,11Univation12(kt/a)199060319886019961001996100199660199810020022001995604502501560(2)BP7,22BP7(kt/a)19906019916215219956023002905(3)BASELL5,33BASELL5(kt/a)22013022303001010,UnipolPE,1560kt/a,64%BASELL31344UnivationBPBASELL,kg10151020101910151025,m375105135130,kg657016,Nm3907920,Nm35,Nm33514,kWh305355420370430:,LLDPE4,,,Univation,BP31455UnivationBPBASELL11212118166213264757101129213645/88104135194265357,/,,Univation,,BASELL01CHEMICALENGINEERINGDESIGN2006,16(4),31531511Univation(1),,,12%14%;21413MPa(G),100,,;,,,,,,2152%,4h(2)1,,,31512BP(1),,,15%;213MPa(G),7295,,,,,2152%,3h(2),,,,31513BASELL(1),,214MPa(G),7285,Z-N,,,,,,,,,32%,2h/(2),,4:411(1)Univation,(2)BP,,,(3)BASELL,Z-N,,412(1)BPUnivation,,,112006,16(4)(2)BASELLSpherilene,413,,,,,41466UnivatonLLDHDBPLLDHDBASELLLLDHD,dg/10minD1238010115001051000101100,g/cm3D1238019150197001915019650190801970,%D63858003001010240800400100010800200800,MPa()D63882211331015293211141629,1009512785127,775149(1)Univation,,,(2)Univation-1BP,,,(3)Univation,(4)BASELLSpherilene(),5511Univation(1),,5%,,,(2)Unipol,,,(3),,(4),(5),(6),,512BP(1)BP-AmocoInnovene,,(2),,(3),,,(4),(5),(6),,(7),513BASELL(1)BASELLSpherilene(2)Z-N,(3),,21CHEMICALENGINEERINGDESIGN2006,16(4),(4),,,,(5),6(1)UnivationUnipolPE,,20000kt,,,,100%200%,,,,,(2)BPInnoveneU2nipol,,,,,,,Innovene,Unipol,U2nipol,,UnivationUnipolPE,,1.[M].:,1992(2006-03-30)(24)(10),,,,,,,6,,,,,,1SH3502-2000,[S].(2006-04-25)(29),HeatTransferResearchInc1(HTRI)PTA:(1),(2),,(3),4000mm,1125mm,25mm1.[M].:,19872.[M].:,2003(2006-06-08)312006,16(4)ABSTRACTSDomesticCustomizationofAcrylonitrileGasIncineration(AOGI)TechnologyWangZhan,etal(NingboEngineeringCo.,ShanghaiCompany,Shanghai201108)DiscussesthedomesticcustomizationofAOGItechnologywithex2ampleofAOunitinShanghaiPetroGroup,describesourdigestionofintroducedtechnologiesfromforeigncountryanddevelopthedomes2ticcustomizedtechnologiesforthesaidunitwithfineeffectandsig2nificantreducedtheinvestment.KeywordswastegasincinerationAOunitdomesticcus2tomizationComparisonofProcessTechnologyofGasPhasePEFluidizedBedDengZhewen(NingboEngineeringCo.,Ltd.,Lanzhou730060)BycomparisonofprocesstechnologyofgasphaseLLPE/HDPEfluidizedbed,proposedtheprocesstechnologysuitableforourcoun2try.KeywordsPEgasphasefluidizedbedprocesstechnologycomparisonDiscussiononProcessDesignforLiquidChlorineStorageKongJianmei,etal(YunnanChemicalDesignInstituteCo.,Ltd.,Kunming650041)Schemecomparisonoftheprocessdesignforliquidchlorinestoragebasedonfirefightingandsafetypointofviewandrecommendsthehumanfriendlyscheme.KeywordsliquidchlorinestorageschemescomparisonhumanfriendlydesignProcessandControlSchemeofPilotPlantofDryCoalPowderGasificationUnitHeDesong(WuhuangScience&TechnologyCo.,Ltd.,Wuhan430079)Byintroducingandmodificationtheairfluidbeddrypowdergasifi2cationtechnology,primaryandsecondarycoalpowdergasificationtechnologyisimproved.Theoxygenconsumptionisdecreased,com2pressionpowerconsumptionisreducedforthecirculatingcoolcoalgasandthelargeradiationwasteheatboilerisnolongerrequired.Thispaperintroducesthecontrolschemeandapplicationoftheunitandthedesigndataandoperatingdataareprovidedfortheconstruc2tionofthelarge-scaleunit.Keywordsdrycoalpowdertwosectionpressurizationgasifica2tioncontrolDiscussiononWeldingofTitaniumPipingQiRong(LuoyangPetrochemicalCorporation,Luoyang471003)Discussesthechangingmechanismoftitaniummaterialundertheheatingprocesssuchasfabricatingandwelding,raisestheviewpointthatthepollutionpreventionisthekeyofweldingquality.Andana2lyzesthereasonandformingmechanismofthedefectssuchascoldcrack,airporosityandoxidationetc.proposesthemeasuresofweld2ingprocesstoensuretheweldingquality.KeywordstitaniummaterialweldingtemperaturecorrosionpollutionairprotectionStressCalculationofHighPressureBendPipeWuYing(ChinaWuhuangChemicalEngineeringCorporation,Wuhan730079)Stresscalculationequationforsectionareavariationhighpressurebendpipeisobtainedbyoverlappedmodule,andcomparedwiththeresultsbyfiniteelementmethodandtheresultsshowthatthetoler2ancesiswithintheallowablerangeandtheequationcanbetherefer2enceforengineeringdesign.KeyWordshighpressurebendpipeovalsectionstresscal2culationfiniteelementmethodDiscussiononDesignofReboilerofDistillationTowerinSolventRecoverySectionofPTAPlantYangJun,etal(ShanghaiEngineeringCo.,Ltd.,Shanghai200120)Discussesthedesignofthekeyequipmenti.e.reboilerofdistilla2tiontowerofPTAplant.UsingprocesssimulationsoftwareAspenPlustosimulatetheimperfectstatueofaceticacidandwaterandreli2ablethermodynamicdataareobtained.CalculatetheheatexchangingeffectofthereboilerunderdifferentevaporationrateanddifferentstructureparametersbyusingtheHTRIheatexchangingsoftwareandcomparetheresults.Considerinwholeroundviewforfactorssuch