wsa硫酸裝置設(shè)備腐蝕與防護(hù)措施研究

1、湘潭大學(xué)碩士學(xué)位論文WSA硫酸裝置設(shè)備腐蝕與防護(hù)措施研究姓名：龔德勝申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：謝放華20050401湘潭大學(xué)碩士學(xué)位論文WSA硫酸裝置設(shè)備腐蝕與防護(hù)措施研究湘潭大學(xué)碩士學(xué)位論文WSA硫酸裝置設(shè)備腐蝕與防護(hù)措施研究4AbstractAbstractThearticledescribesthetechnologicalprincipledevelopmenttrendofH2Ssulfuricacidmaki

2、ngplant.ItmainlyresearchesthetechnologicalprincipletechnicalfeaturestechnicalproceduretechnoeconomicfWSAwetsulfuricacidmakingofTopsoeaCompany(Denmark).ItanalysisthecrosionanticrosionofH2Ssulfuricacidmakingplantdomesticab

3、roadincludesthatthecrosionquestionswhichhappenedinChanglingPetrochemicalCompanyarenotsameasothercompany.Inallusiontotheinstanceweresearchanalysisthereasonsofthecrosionffinishedconcentratedsulfuricacidpipesprocessgascoole

4、rE104pipesinWSAsulfuricacidplantinChanglingPetrochemicalCompany.Thereasonsarerelatedtothefaultofweldingquality.Theweldingbeambasemetalbeamhavemanydifferences.Theyhavedifferentenergetic.Theelectrochemicalactivityinwelding

5、areaishigherthanitinthebasemetalbeam.Theelectrochemicalcrosioniseasytohappenfthemedium.Thecrosionofconcentratedsulfuricacidisrelatedtothetemperaturetheimpuritycontent.Thecrosionrateisraisedupwhenthetemperatureishigher.If

6、thesulfuricacidhassomeionnitratedthepipecrosionwillraiseuptoo.Theproduct’scolisunusual.Thearticleputsfwardsomeanticrosionmeasuressuggestionsaboutpipeerosiverestantliningcrosionmonitingprocesscrosionprotectionimprovingwel