基于复合工艺优化的伴生气脱酸技术研究

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Deacidification technology for associated gas based on composite process optimization

LIU Tao

SafetySupervisionandetectionCenter，HuabeiOilfieldCompany，ChinaNationalPetroleumCorporationLimited，enqiu652，

China

Abstract：Toreducetheprocsseergconsumptionintedeacidificationprocessforasociatedgasbythetraditionalalcoholaine absorptionmdtizatidutoptcdorlqdateagesellasgenatiode traditionalprocess.Underthepremiseoffxedpurifiedasqalityteifluenceofchangs incompositeprocesparametersoeergy consumptionwasanalyzedbasedonsimulationsoftware.Theoptimalcomposite processcombinationwasdeterminedwhilethe key productparameters，keyequipmentsize，ndeconomywereevaluated.Theresultsshowthattheextractionpositionof theinterstage colingirculationflowshouldbekeptatthe13thtrayandtheinterstagecolingtemperatureshouldbethelowestwithinthe requirementforteeatexchangeperformance（33C）.Teenergyconsumptionleveloftecompositeproessreachditsigstwith theraw gassplitratio of 25% ，therichliquidsplitratioof 10% ，andthesecond rich liquid inlet position beingat the fifth tray.Lean liquid throttle pressure should be the lower limit （ 70kPa ）. The optimal composite process is interstage cooling + rich liquid splitting + rawgas spliting.Compared with the traditional process，the energy saving rate of this composite process is 25.35% . The product quality of the optimalcomposite processis better than thatofthe traditional process，with apayback period of 1.59 years.

Keywords：associated gas;deacidification; alcohol amine solution; absorption tower; regeneration tower

天然气作为一种优质的清洁过渡能源，在一次能源中的占比大幅提升[1]。（剩余5822字）