预览加载中，请您耐心等待几秒...

蜡油加氢裂化装置高压换热器结垢物分析及建议.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

蜡油加氢裂化装置高压换热器结垢物分析及建议 Title:AnalysisandSuggestionsonScalingMaterialsinHigh-pressureHeatExchangerofWaxOilHydrocrackingUnit Abstract: Scalinginhigh-pressureheatexchangersisawidespreadprobleminpetroleumrefiningindustry.Thispaperaimstoanalyzeandprovidesuggestionstoaddresstheissueofscalingmaterialsinthehigh-pressureheatexchangerofthewaxoilhydrocrackingunit.Variousfactorsthatcontributetoscalingformation,suchasimpuritiesinthefeedstockandprocessconditions,arediscussed.Differenttechniquesformonitoringandanalyzingthescalingmaterialsareevaluated.Basedontheanalysis,recommendationsaregiventomitigatescalingrisksandimprovetheperformanceoftheheatexchanger. 1.Introduction Thewaxoilhydrocrackingprocessplaysacrucialroleinconvertingheavywaxoilfeedstocksintovaluableproducts,suchasdieselandgasoline.However,thepresenceofimpuritiesinthefeedstock,suchasasphaltenes,heavymetals,andsalts,canleadtoscalinginthehigh-pressureheatexchanger.Scalingreducesheattransferefficiency,increasespressuredrop,andrequiresfrequentmaintenanceandcleaningoperations.Toaddresstheseissues,itisessentialtounderstandthecausesofscalinganddevelopeffectivestrategiestomitigatetheproblem. 2.Factorscontributingtoscaling 2.1.Impuritiesinfeedstock 2.2.Processconditions(pressure,temperature,flowrate) 2.3.WatercontentandpH 3.Analysistechniquesforscalingmaterials 3.1.Visualinspection 3.2.Chemicalanalysis(SEM-EDX) 3.3.X-raydiffraction(XRD) 3.4.Thermalanalysis(TG-DTA) 4.Recommendationstomitigatescalingrisks 4.1.Feedstocktreatment 4.2.Monitoringandcontrolofprocessconditions 4.3.Antiscalantinjection 4.4.Regularinternalinspectionandcleaning 4.5.Materialselectionandheatexchangerdesignoptimization 5.Casestudiesandindustrypractices 5.1.Casestudy1:Scalingformationandmitigationstrategies 5.2.Casestudy2:Effectofwatercontentonscaling 5.3.Comparativeanalysisofindustrypractices 6.Conclusion Scalinginthehigh-pressureheatexchangerofthewaxoilhydrocrackingunitisasignificantchallengeinthepetroleumrefiningindustry.Thispaperhasprovidedacomprehensiveana