硫磺回收装置结垢初步研究

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1、中国石油大学（华东）硕士学位论文硫磺回收装置结垢初步研究姓名：李敏申请学位级别：硕士专业：工业催化指导教师：涂永善;杨朝合20060401被溶解并析出的量越大，且递增趋势明显。综上所述，造成装置产生Si02结垢并非是由某一原因单独作用的结果，而是由上述三个因素共同作用而形成的。其中，装置所用的脱氧水pH值长期偏低，且硅含量偏高，对装置产生结垢的影响最为明显。论文还就如何避免或减少装置出现Si02结垢堵塞问题提出了建设性意见。关键词：硫磺回收，克劳斯法，结垢111PrimaryStudiesonfoulingofClausUnitLiMin(IndustrialCatalysis)D

2、irectedbyProfessorTaYong-shan&ProfessorYaagChao-heAbstractProducingcleanandenvironment-friendshipfudmeansfurtherdesulf-urizationofgasolineanddieseloilforvehicle．Withthedevelopmentofthedesulphurizationtechnology,thecontentofH2Sinthesourwaterfromtheprocessofoilrefiningisgettinghigherandhigher．To

3、reducethepollutionbroughtbysourwater,itisnecessarytorecoverythes11Ifilrfromit．SotheClausunitsaregettingincreasinglyimportantintheproductionofrefinery．‘ThisthesisisfocusedontheproblemoffoulinghappenedintheClausunitofShenglipetrochemicalrefinery．Thefoulingsampleanalysisshowedthatitsdomaincompone

4、ntisSi02．Thissituationseldomappearsinthiskindofunits．Therearethreeprobabilitiescausedthefouling．Firstoneisthattheproductofthereactionbetweensandandsulfur；secondoneisthatsilicieacidinsaturatedsteammightbedehydratedtoformSi02；thirdoneisthatSi02coulddissolvedinsuperheated-steamandseparateoutatthe

5、conditionwithgreattemperaturedrop．Aself-designedlaboratoryreactionsystemhasbeenemployedtoinvestigatethereactionbetweensandandsulfur．ThereWasnotanySi02appearedintheproductsbecameofthelimitationoflabcondition．TheamountoffoulingWasreducedaftersomemeasures．Itshowsthatthereactionbetweensandandsulfu

6、rwasrelatedtotheunitproblem．IthasbeenⅣdiscussedthatthesilicieacidcarriedbysaturatedsteammightbedehydratedtoSi02，IthasbeenanalysedthatSi02dissolvedinsuperheated-steammightleadtotheproblem，andtherecameupaviewpointthatsuperheated-steamdissolvingSi02mightbeoneofthefactorswhichcausethefouling．Keywo

7、rds：Sulfurrecovery,Clausprocess，foulingV独创性声明本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知，除了文中特别加以标注和致谢的地方外，论文中不包含其他人已经发表或撰写过的研究成果，也不包含为获得石油大学或其它教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示了谢意。签名：砌J年矿,Ej力日关于论文使用授权的说明(保密论文在解密后应遵守此规