AspenPlus高級班課件(前3天)

高級精餾在石化及電解質(zhì)方面的應(yīng)用中國石油化工集團燕山仿真培訓中心二OO六年六月1IntroductiontoAspenPlusforPetroleumProcesses一、復(fù)習初級班并介紹高級班內(nèi)容★建立流程模擬的主要步驟★主要的物性方法★高級班內(nèi)容2IntroductiontoAspenPlusforPetroleumProcesses1、建立流程模擬的步驟（1）確定所要模擬的過程（普通化工過程、煉油過程、電解質(zhì)過程等）（2）確定單元操作之間的物流關(guān)系（畫出所模擬過程的物料流程圖)（3）確定所采用的單位制及結(jié)果中需要報告的內(nèi)容(setup)（4）定義組分(components)

3IntroductiontoAspenPlusforPetroleumProcesses1、建立流程模擬的步驟（續(xù)）（5）選擇物性方法（properties)：物性方法是一個若干個公式的集合，用于計算所模擬過程的熱力學性質(zhì)和熱傳遞性質(zhì)。（6）輸入進料的溫度、壓力、組成、流量(streams)（7）輸入各個單元操作的操作條件或設(shè)備尺寸條件(blocks)4IntroductiontoAspenPlusforPetroleumProcesses2、主要的物性方法（1）極性物系：NRTL、UNIFAC、UNIQUAC、WILSON

（2）非極性物系：PENG-ROB、RK-SOAVE、SRK（3）煉油系統(tǒng)：BK10、CHAO-SEA、GRAYSON（4）電解質(zhì)：ELECNRTL（5）聚合物：POLYNRTL（6）水蒸汽：STEAM-TA5IntroductiontoAspenPlusforPetroleumProcesses3、高級班主要內(nèi)容（1）RadFrac

模型的進一步應(yīng)用①RadFrac的輸入規(guī)定②RadFrac的設(shè)計與核算③三相蒸餾、共沸蒸餾、萃取蒸餾、反應(yīng)蒸餾、吸收④中間再沸器(冷凝器）⑤RadFrac的收斂方法（包括斷裂流股的收斂)6IntroductiontoAspenPlusforPetroleumProcesses3、高級班主要內(nèi)容（續(xù)）（2）電解質(zhì)過程（3）煉油過程（4）EO模型（5）CulumnTargeting7IntroductiontoAspenPlusforPetroleumProcesses二、RadFrac介紹（2-18頁）2.1RadFrac

FlowsheetConnectivity(2頁)2.2Mult-StageSeparators-RigorousDistillation(3頁)（簡介）2.3RadFracSimulation(4頁)2.4CalculationandConfigurationOption(5頁)2.5NewRadFracFeatures(6頁)8IntroductiontoAspenPlusforPetroleumProcesses二、RadFrac介紹（續(xù)）2.6RadFracModes(8頁)(1)RatingMode (2)DesignMode2.7RatingMode(9頁)2.8FeedConvention(10頁)2.9ChoosingFeedConventions(11頁)2.10ColumnOperatingSpecifications(12-13頁)9IntroductiontoAspenPlusforPetroleumProcesses例題1：乙苯/苯乙烯填料塔設(shè)計文件名：DIST001.BKP)例題位置：19-79頁10IntroductiontoAspenPlusforPetroleumProcesses例題目的①用戶單位制的建立。②塔設(shè)計中，塔壓初始條件的規(guī)定。③塔設(shè)計中，對塔壓的修正。④最大能力因數(shù)。⑤起泡因子的考慮。⑥水力學參數(shù)的獲取。⑦等板高度的修正。11IntroductiontoAspenPlusforPetroleumProcesses已知條件①基本工況：見教材20頁。②填料條件：見教材21頁。③要求：苯乙烯質(zhì)量含量≥99.5%，塔底壓力≤104torr(mmHg)。12IntroductiontoAspenPlusforPetroleumProcesses求解內(nèi)容計算填料塔的直徑和高度13IntroductiontoAspenPlusforPetroleumProcesses注意事項①注意觀察塔底溫度。②塔設(shè)計中對塔壓的修正③水力學參數(shù)的獲取14IntroductiontoAspenPlusforPetroleumProcesses例題2:氯乙烯生產(chǎn)裝置脫HC塔的模擬-------雙溢流塔的核算文件名：DIST002.BKP例題位置：80-99頁15IntroductiontoAspenPlusforPetroleumProcesses例題目的①基于組分的D/F（B/F）的概念。②塔盤結(jié)構(gòu)和雙溢流塔盤的結(jié)構(gòu)及輸入方法。③全塔效益的規(guī)定。④收斂方法的修改。⑤液泛的判斷條件。16IntroductiontoAspenPlusforPetroleumProcesses已知條件基本工況：見教材83-84頁。17IntroductiontoAspenPlusforPetroleumProcesses求解內(nèi)容(總:81頁)①找出限制塔操作能力的塔板②如何改變操作條件使分離達到要求?③處理量提高30%,塔能否操作?④尋找合適的操作范圍和可能的改造方案2023/1/1518IntroductiontoAspenPlusforPetroleumProcesses求解內(nèi)容(1A：基礎(chǔ)工況)(84頁)

①Plottheliquidcompositionprofilesforallcomponents.②Plotthetemperatureprofiles③Whatarethecondenserandreboilerduties?④displaycomponentsplitfractionsamongproduct.⑤whichisthelimitingstagewithregardtojetflooding?1⑥whatstagehasthemaxmumDCbackup/trayspacingrating?⑦whatisthepredictedpressuredropforthesection?2023/1/1519IntroductiontoAspenPlusforPetroleumProcesses求解內(nèi)容(1B：問題研究)文件名：DIST002A.BKP例題位置：94頁2023/1/1520IntroductiontoAspenPlusforPetroleumProcesses求解內(nèi)容(1B：問題研究)①如何改變操作條件，使分離達到要求？a.100ppmVCM(molebasis)intheoverheadb.100ppmHCL(molebasis)inthebottomsc.VaryD:FandRRtoachievespecifications2023/1/1521IntroductiontoAspenPlusforPetroleumProcesses②如果將處理量提高30%，塔能否操作？★Specifyasensitivityblocktostutytheeffectofincreasesinfeedrateonthefloodingapproachanddowncomer

bachup/trayspacing.Considerincreasesof5to50%.UseaMULTblochtohandlethefeedvariation.★ForthebasecasedefineFRACTOR=1.3inMULT.2023/1/1522IntroductiontoAspenPlusforPetroleumProcesses③尋找合適的擴能操作范圍和可能的改造方案。★Plotthevariationonfloodingapproachanddowncomerbackup/trayspacing.withincreasedcapacity.★Whatisthevalueofthemanipulatedvariableswhichsatisfythespecsforthebasecase?2023/1/1523IntroductiontoAspenPlusforPetroleumProcesses三、Three-PhaseDistillation三相蒸餾

24IntroductiontoAspenPlusforPetroleumProcesses3.1Three-PhaseOptions（101）3.2Vapor-liquid-liquid（101）3.3Vapor-liquid-Freewater

Condencer（102）3.4Vapor-liquid-Freewater

Anystage（102）25IntroductiontoAspenPlusforPetroleumProcesses3.5SpecifyingaThree-PhaseApplication3.6Three-PhaseSpecification3.7ColumnSpecifications（104）3.8DecanterSpecifications（106）3.9Three-PhaseSpecificationConsiderations26IntroductiontoAspenPlusforPetroleumProcesses3.10Example:3-phaseDistillation（108-110頁）目的：演示講解（1）Decanter規(guī)定方法（2）檢查三相位置(Ex3a-r3phase)27IntroductiontoAspenPlusforPetroleumProcesses3.11ConvergenceDifficulties（110）3.12AlgorithmSelectionTips（111）28IntroductiontoAspenPlusforPetroleumProcesses3.13RepresentingPhaseEquilibrium3.14UsingKLLExpressiontoRepresentKLL3.15UsingKLLSubroutinetoRepresentKLL29IntroductiontoAspenPlusforPetroleumProcesses3.16HandingEfficiencies（114）3.17Three-PhaseReactiveDistillation3.18Free-waterCalculation（115）3.19Free-waterMethod（116）30IntroductiontoAspenPlusforPetroleumProcesses3.20UsingFree-water（117）3.21Water-HydrocarbonProperties（118）3.22Free-waterPhaseProperties（118）3.23Free-waterK-values（118）31IntroductiontoAspenPlusforPetroleumProcesses3.24WaterSolubilityEquals0or13.25WaterSolubilityEquals2or33.26propertiessetup（120）2023/1/1532I