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J76JB/T755119941994-12-091995-10-011122.1naturalgasseparation2.2naturalgasliquefaction2.3naturalgaspurificationnaturalgaspreconditioning2.4naturalgasdehydration2.5desulfurization2.6carbondioxideremoval2.7acidgasremovalsourcomponentsremoval2.8adsorption2.9absorption2.10absorbent2.11absorptionoil2.12adsorbentregeneration1994-12-09JB/T755119941995-10-01JB/T7551199422.13refrigeration–40~–45cryogenictemperaturerefrigeration,lowtemperature2.14rectificationfractionationdistillation2.15flash2.16naturalgas(NG)2.17sournaturalgas2.18acidgasCO2H2SCOSSO2CO2H2SCOSsourcomponents2.19feedgas2.20leangas2.21richgas2.22wetgas2.23drygas2.24residusgas2.25liquefiednaturalgas(LNG)2.26lighthydrocarbons2.27liquefiedpetroleumgas(LPS)JB/T7551199432.28naturalgascondensatecondensate2.29naturalgasoline2.30naturalgasliquid(NGL)2.31commercialethane2.32commercialpropane2.33commercialbutane2.34commercialmixtureofpropaneandbutane2.35cryogeniccyclewithexpander2.36cryogeniccyclewithexpanderandaidofrefrigeration2.37cyclewiththrottlingexpansion2.38cascadecycle2.39mixedcomponentrefrigerantcycle(MCR)MCRTealarc2.40nominalfeedgasthroughput2.41normalstate0101.325kPa2.42recoveryrate2.43nitrogendisplacementJB/T7551199442.44peakshavingLNG2.45adiabaticexpansion2.46differenceintemperatureatinlet2.47differenceintemperatureatoutlet2.48coldlosscausedbyheatinleak2.49recycle2.50coldlosscausedbyinsufficientwarm–up2.51isentropicexpansion2.52isentropicefficiencys33.1naturalgasseparationplant3.2naturalgascompressionsystem3.3naturalgaspurificationsystemnaturalgaspreconditioningsystem3.4naturalgascryogenicprocessingsystem3.5unitapparatus3.6separatorJB/T755119945gas–liquidseparator3.7expanderinletseparator–3.8expanderoutletseparator–3.9trithaseseparator––3.10filter3.11flamearrester3.12packedcolumn3.13rectificationcolumn–fractionationcolum3.14absorptioncolumn3.15stripper3.16stabilizer3.17demethanizer3.18deethanizer3.19depropanizer3.20debutanizer3.21condenser3.22refluxcondenser3.23reboilerJB/T7551199463.24sidereboiler3.25heatexchanger3.26cooler3.27electricheater3.28steamheater3.29heater3.30dryer3.31refluxaccumulator3.32flashdrum3.33flare3.34packagedunit,skidmountedunit3.35LNGpeakshavingplant3.36turboexpander,expansionturbinebooster,compressorJB/T755119947AB2.41C2.243.243.23D2.372.363.52.432.512.523.27F3.62.382.502.21G2.233.302.403.10H3.253.313.222.422.393.33J3.292.143.132.45L2.473.213.26P2.483.83.72.352.20Q3.153.342.26R2.46S3.92.153.322.342.322.332.312.222.182.17T2.163.42.13.12.42.33.32.283.22.22.302.293.122.44()JB/T7551199483.363.193.202.63.172.52.73.18W3.16X2.82.102.122.93.142.11Y2.272.253.352.19Z2.493.282.133.11JB/T75511994JB/T75511994*2100044*88012301/163/416,000199531995300,0015006.0094111