天然氣處理工藝設備與原理

天然氣處理工藝設備與原理天然氣處理工藝設備與原理天然氣處理工藝設備與原理脫硫SulfurRemoval脫水Dehydration硫磺回收SulfurRecovery尾氣處理TailGasTreatment主體工藝MainProcess空氮站Air&N2Station鍋爐給水框架BoilerFeedwater燃料氣系統(tǒng)FuelGasSys.火炬與放空系統(tǒng)Flare&VentSys.硫磺成型與儲存SulfurStorage&Forming商業(yè)計量站GasCommercialMeteringStation水處理系統(tǒng)WaterTreatmentSys.氣田水處理系統(tǒng)ProducedwaterTreatment公用工程與輔助設施Utilities&AuxiliaryFacilities自控機柜間CentralControlRoom35kV變電站35kVSubstation循環(huán)水系統(tǒng)CoolingWaterSys.消防水給水系統(tǒng)FireWaterSupplySys.天然氣處理廠GasTreatmentPlant

工廠組成PlantComponents2人有了知識，就會具備各種分析能力，明辨是非的能力。天然氣處理工藝設備與原理天然氣處理工藝設備與原理天然氣處理工1脫硫SulfurRemoval脫水Dehydration硫磺回收SulfurRecovery尾氣處理TailGasTreatment主體工藝MainProcess空氮站Air&N2Station鍋爐給水框架BoilerFeedwater燃料氣系統(tǒng)FuelGasSys.火炬與放空系統(tǒng)Flare&VentSys.硫磺成型與儲存SulfurStorage&Forming商業(yè)計量站GasCommercialMeteringStation水處理系統(tǒng)WaterTreatmentSys.氣田水處理系統(tǒng)ProducedwaterTreatment公用工程與輔助設施Utilities&AuxiliaryFacilities自控機柜間CentralControlRoom35kV變電站35kVSubstation循環(huán)水系統(tǒng)CoolingWaterSys.消防水給水系統(tǒng)FireWaterSupplySys.天然氣處理廠GasTreatmentPlant

工廠組成PlantComponents2脫硫脫水硫磺回收尾氣處理主體工藝空氮站鍋爐給水框架燃料氣系統(tǒng)溶劑脫硫SulfurRemoval脫水Dehydration硫磺回收SulfurRecovery尾氣處理TailGasTreatment主體工藝MainProcess空氮站Air&N2Station鍋爐給水框架BoilerFeedwater燃料氣系統(tǒng)FuelGasSys.火炬與放空系統(tǒng)Flare&VentSys.硫磺成型與儲存SulfurStorage&Forming商業(yè)計量站GasCommercialMeteringStation水處理系統(tǒng)WaterTreatmentSys.氣田水處理系統(tǒng)ProducedwaterTreatment公用工程與輔助設施Utilities&AuxiliaryFacilities自控機柜間CentralControlRoom35kV變電站35kVSubstation循環(huán)水系統(tǒng)CoolingWaterSys.消防水給水系統(tǒng)FireWaterSupplySys.天然氣處理廠GasTreatmentPlant

工廠組成PlantComponents3溶劑脫硫脫水硫磺回收尾氣處理主體工藝空氮站鍋爐給水框架燃料氣GasPlantoverviewSulfurRemovalUnit脫硫裝置(2)TailGasTreatment&SourH2OStripping尾氣處理&酸H2O汽提(1)SulfurRecoveryUnit硫磺回收裝置(1)SulfurRemovalUnit脫硫裝置(1)CommercialMeteringStation商業(yè)計量站Dehydration三甘醇脫水LiquidSulfurStorageTanks液硫儲罐Incinerator

灼燒爐SulfurForming硫成型Incinerator灼燒爐SulfurRecoveryUnit硫磺回收裝置(2)TailGasTreatment&SourWaterStripping尾氣處理&酸H2O汽提(2)FeedGasFromGasTerminalStation

來自末站的原料氣WetTreatedGas

處理濕氣AcidGas酸氣AcidGas酸氣AcidGas酸氣SalesGastoGrid商品氣至管網(wǎng)ProductSulfurtoStorage硫磺產(chǎn)品儲存VenttoAtm.VenttoAtm.AcidGas酸氣4GasPlantoverviewSulfurRemov脫硫單元Sulfur

Removal

Unit脫硫單元5GasPlantoverviewSulfurRemovalUnit脫硫裝置(2)TailGasTreatment&SourH2OStripping尾氣處理&酸H2O汽提(1)SulfurRecoveryUnit硫磺回收裝置(1)SulfurRemovalUnit脫硫裝置(1)CommercialMeteringStation商業(yè)計量站Dehydration三甘醇脫水LiquidSulfurStorageTanks液硫儲罐Incinerator

灼燒爐SulfurForming硫成型Incinerator灼燒爐SulfurRecoveryUnit硫磺回收裝置(2)TailGasTreatment&SourWaterStripping尾氣處理&酸H2O汽提(2)FeedGasFromGasTerminalStation

來自末站的原料氣WetTreatedGas

處理濕氣AcidGas酸氣AcidGas酸氣AcidGas酸氣SalesGastoGrid商品氣至管網(wǎng)ProductSulfurtoStorage硫磺產(chǎn)品儲存VenttoAtm.VenttoAtm.AcidGas酸氣6GasPlantoverviewSulfurRemov脫硫目的Purpose通過氣-液吸收、氣-固吸附和化學轉化等途徑除去天然氣中的含硫化合物和部分CO2，使其達到商品天然氣管輸標準。ToremovesulfurcompoundsandexcessiveCO2fromsournaturalgasbymeansofgas-liquidabsorption,gas-solidadsorptionandchemicalconversionssothatthegasmeetsthepipelinetransportationspecifications.脫硫目的Purpose通過氣-液吸收、氣-固吸附和化學轉化7脫硫工藝方法 ?本廠使用砜胺溶液Sulfinol-M（薩菲諾-M）進行脫硫TheplantusesSulfinol-Mtoremovesulfur.?溶液組份：甲基二乙醇胺50%，環(huán)丁砜15%，水35%。CompositionoftheSolvent:50%MDEA,15%sulfolane,35%water脫硫工藝方法 8

SulfurRemovalUnit脫硫裝置再生塔Regenerator閃蒸罐FlashTank主吸收塔MainAbsorber回流泵過濾分離器FeedgasFilter分離部分SeparationSection去除原料氣中的大量水和雜質Removewaterandimpuritiesfromthefeedgas吸收部分AbsorptionSectin砜胺溶液和原料氣在吸收內(nèi)逆向接觸，吸收H2S、CO2和部分有機硫（脫硫）Thesulfinol-McountercurrentswithfeedgasandabsorbsH2S,CO2andpartoforganicsulfur(sulfurremoval)閃蒸部分FlashSection閃蒸出砜胺富液中夾帶的碳氫化合物Flashhydrocarbonoutoftherichsulfinol-M再生部分RegenerationSection用加熱的方式解析出富液中的酸氣，Therichsulfinol-Misregeneratedbyheatingittodriveoffacidgas富液再生Richsulfinol-Mregeneration將再生后的貧液打回吸收塔循環(huán)使用Theleansulfinol-Mregeneratedisroutedtoabsorberforrecycling濕凈化氣去脫水單元WetTreatedgastodehydrationunit解析出的酸氣送入硫磺回收單元Acidgastosulfurrecoveryunit9SulfurRemovalUnit脫硫裝置SulfurRemovalUnit脫硫設備清單塔脫硫吸收塔

閃蒸氣吸收塔

再生塔

罐原料氣分離器

濕凈化氣分離器

閃蒸罐

回流罐砜胺液排放罐

凝結水分離器

EquipmentList-SulfurRemovalColumnsMainAbsorberColumnFlashGasAbsorberColumnRegeneratorColumnDrumsFeedGasSeparatorDrumWetTreatedGasK.O.DrumFlashDrumRefluxDrumSulfinolDrainDrumCondensateWaterSeparator10SulfurRemovalUnit脫硫設備清單EquipSulfurRemovalUnit換熱器和冷凝器貧富砜胺液換熱器

貧砜胺液冷卻器

貧砜胺液后冷卻器

再生塔重沸器塔頂冷凝器

塔頂后冷器

過濾器原料氣過濾分離器

砜胺液機械過濾器

活性炭過濾器砜胺液后過濾器

排放溶液過濾器

Exchangers&CoolersLean/RichSulfinolExchangersLeanSulfinolCoolerLeanSulfinolTrimCoolerRegeneratorReboilerOverheadCondenserOverheadTrimCooler

FiltersFeedGasFiltersLeanSulfinolFilterActivatedCarbonFilterSulfinolTrimFilterDrainedSulfinolFilter11SulfurRemovalUnit換熱器和冷凝器ExchSulfurRemovalUnitPumps&DriversLowPressureLeanSulfinolPumpsHighPressureLeanSulfinolPumpsRefluxPumpsDrainedSulfinolPumpPowerRecoveryTurbine泵和驅動器低壓貧砜胺液泵

高壓貧砜胺液泵回流泵

排放溶液泵

富砜胺液能量回收透平

）12SulfurRemovalUnitPumps&DriENVIRONMENT

FOCUS

環(huán)保關注點氣體污染：H2S泄漏、含硫閃蒸氣泄漏Gaspollution:H2Sleakage,flashgasleakage固體污染：固廢物堆放、Solidpollution:solidwastepiles液體污染：脫硫溶液泄漏、化學藥劑泄漏、Liquidpollution:desulfurizationsolutionleakage,chemicalleakage熱輻射：換熱器、重沸器、蒸汽泄漏HeatRadiation:heatexchanger,re-boilerandsteamleakage噪聲污染：管線噪聲、機械噪聲Noisepollution:ductnoise,mechanicalnoiseENVIRONMENTFOCUS

環(huán)保關注點氣體污染：H13脫水單元Dehydration

Unit脫水單元14GasPlantoverviewSulfurRemovalUnit脫硫裝置(2)TailGasTreatment&SourH2OStripping尾氣處理&酸H2O汽提(1)SulfurRecoveryUnit硫磺回收裝置(1)SulfurRemovalUnit脫硫裝置(1)CommercialMeteringStation商業(yè)計量站Dehydration三甘醇脫水LiquidSulfurStorageTanks液硫儲罐Incinerator

灼燒爐SulfurForming硫成型Incinerator灼燒爐SulfurRecoveryUnit硫磺回收裝置(2)TailGasTreatment&SourWaterStripping尾氣處理&酸H2O汽提(2)FeedGasFromGasTerminalStation

來自末站的原料氣WetTreatedGas

處理濕氣AcidGas酸氣AcidGas酸氣AcidGas酸氣SalesGastoGrid商品氣至管網(wǎng)ProductSulfurtoStorage硫磺產(chǎn)品儲存VenttoAtm.VenttoAtm.AcidGas酸氣15GasPlantoverviewSulfurRemov脫水目的Purpose采用不同工藝脫除天然氣中水份，使其達到商品天然氣管輸標準中水露點。Toremovewaterfromgasbydifferentmethodstoensurethegasiswithindewpointspecificationforsalesgaspipelinetransportation.脫水目的Purpose采用不同工藝脫除天然氣中水份，使其達16脫水工藝方法（本廠使用TEG（三甘醇）脫水TheplantusesTEGfordehydration.—OH），在結構上與水相似，甘醇的羥基與水分子可以形成氫鍵，由于締合分子的鍵長很長，鍵能小，因此締合分子是可逆的，并且可在低于甘醇沸點，高于水的沸點溫度下再生提純以供循環(huán)使用。脫水工藝方法（17Dehydration脫水CriticalEquipmentTableTEGAbsorberProductGasK.O.DrumTEGFlashDrumBufferContainerTEGRecoveryTankOffGasK.O.DrumTEGReserveTankFuelGasBufferDrumTEGCoolerRichTEGHeaterLean/RichTEGHeatExchanger關鍵設備列表TEG吸收塔

產(chǎn)品氣分離器

TEG閃蒸罐

緩沖罐

TEG回收罐

廢氣分液罐

TEG儲罐

燃氣緩沖罐

TEG冷卻器

富液加熱盤管

TEG貧/富液換熱器

18Dehydration脫水CriticalEquipmenDehydration脫水關鍵設備列表TEG重沸器

TEG預過濾器

活性炭過濾器

TEG后過濾器

TEG貧液循環(huán)泵

TEG回收泵

TEG補充泵

TEG回收總管燃氣/商業(yè)氣計量系統(tǒng)火炬CriticalEquipmentTableTEGReboilerTEGPre-FilterActivatedCarbonFilterTEGTrimFilterLeanTEGCirculationPumpTEGRecoveryPumpTEGMake-upPumpTEGRecoveryHeaderFuel/CommercialGasMeteringSystemFlaresESDNarrativeReference19Dehydration脫水關鍵設備列表CriticalEqDehydration脫水CriticalEquipmentTableTEGAbsorberProductGasK.O.DrumTEGFlashDrumBufferContainerTEGRecoveryTankOffGasK.O.DrumTEGReserveTankFuelGasBufferDrumTEGCoolerRichTEGHeaterLean/RichTEGHeatExchanger關鍵設備列表TEG吸收塔

產(chǎn)品氣分離器

TEG閃蒸罐

緩沖罐

TEG回收罐

廢氣分液罐

TEG儲罐

燃氣緩沖罐

TEG冷卻器

富液加熱盤管

TEG貧/富液換熱器

20Dehydration脫水CriticalEquipmenTEGDehydrationUnit(onepertrain)三甘醇脫水裝置（一列一套）K.O.Drum產(chǎn)品氣氣液分離罐FlashDrum閃蒸罐TEGAbsorber吸收塔Reboiler重沸器WetTreatedGas處理濕氣Productgas產(chǎn)品氣Flashgastofuelgassystem到燃料氣系統(tǒng)的閃蒸氣

OffgastoIncinerator不合格氣體到灼燒爐Lean-Richexchanger貧富液交換器TEGPump

TEG泵Buffertank緩沖罐MPsteam中壓蒸氣Strippinggas汽提氣LeanTEG貧液RichTEG富液21TEGDehydrationUnit(oneperENVIRONMENT

FOCUS

環(huán)保關注點液體污染：TEG溶液泄漏、化學藥劑泄Liquidpollution:TEGleakage,chemicalleakage熱輻射：換熱器、重沸器、蒸汽泄漏HeatRadiation:heatexchanger,re-boilerandsteamleakage噪聲污染：管線噪聲、機械噪聲Noisepollution:ductnoise,mechanicalnoiseENVIRONMENTFOCUS

環(huán)保關注點液體污染：T22硫磺回收單元Sulfur

RecoveryUnit(SRU)23硫磺回收單元23GasPlantoverviewSulfurRemovalUnit脫硫裝置(2)TailGasTreatment&SourH2OStripping尾氣處理&酸H2O汽提(1)SulfurRecoveryUnit硫磺回收裝置(1)SulfurRemovalUnit脫硫裝置(1)CommercialMeteringStation商業(yè)計量站Dehydration三甘醇脫水LiquidSulfurStorageTanks液硫儲罐Incinerator

灼燒爐SulfurForming硫成型Incinerator灼燒爐SulfurRecoveryUnit硫磺回收裝置(2)TailGasTreatment&SourWaterStripping尾氣處理&酸H2O汽提(2)FeedGasFromGasTerminalStation

來自末站的原料氣WetTreatedGas

處理濕氣AcidGas酸氣AcidGas酸氣AcidGas酸氣SalesGastoGrid商品氣至管網(wǎng)ProductSulfurtoStorage硫磺產(chǎn)品儲存VenttoAtm.VenttoAtm.AcidGas酸氣24GasPlantoverviewSulfurRemov硫磺回收工藝描述硫磺回收裝置的三個部分：克勞斯熱反應部分克勞斯催化反應部分脫氣部分ProcessDescriptionThreesectionsthatmakeuptheSulfurRecoveryUnit:ClausThermalReactionsectionClausCatalyticReactionsectionDegassingsection25硫磺回收工藝描述ProcessDescription25硫磺回收熱化學反應（克勞斯反應）熱化學反應階段由主燃燒器，燃燒室，余熱鍋爐和一級硫磺冷凝冷卻器組成。主燃燒器中的來料酸氣與空氣進行不完全燃燒（即次化學當量）。進料酸氣中三分之一的H2S以這種方式燃燒生成SO2，而其它雜質，碳氫化合物則完全燃燒，變成二氧化碳和水。余下三分之二的H2S與SO2反應，轉化為硫。這個平衡反應稱為克勞斯反應?？藙谒狗磻闹饕攸c是H2S與SO2之間2:1的比例。這個比例在整個過程中是恒定的，并通過在主燃燒器中適量空氣的燃燒來控制。一些硫直接在主燃燒器火焰上形成，這就是所謂的硫化氫自動分解反應。ThermalReactionStage（Clausreaction）Thethermalstageconsistsofthemainburner,combustionchamber,wasteheatboilerandfirstsulfurcondenser.Inthemainburnerthesourgasfeedisburntsubstoichiometrically(=shortageofoxygen)withair.One-thirdoftheH2Spresentinthesourgasfeediscombustedinthisway,whereastheseveralfeedgasimpurities,hydrocarbons,areburntcompletelytocarbondioxideandwater.Themajorpartoftheremainingtwo-thirdsofH2SisthermallyconvertedintosulfurbythereactionwithSO2.ThisequilibriumreactioniscalledtheClausreaction.ThecharacteristicfeatureoftheClausreactionisthe2:1ratiobetweenH2SandSO2.Thisratioisconstantthroughouttheprocessandisobtainedbypropercombustionaircontrolatthemainburner.Somesulfurisdirectlyformedinthemainburnerflamebytheso-calledauto-dissociationreactionofH2S,andunderformationofhydrogen.26硫磺回收熱化學反應（克勞斯反應）ThermalReacti硫磺回收催化反應下游催化反應階部分，在低溫情況下，在隨后的兩級反應階段通過采用一種特殊的催化劑（三氧化二鋁）來繼續(xù)克勞斯平衡反應。脫氣硫磺回收裝置產(chǎn)生的硫含有大約300ppmwtH2S，部分化學反應生成的硫化物(H2Sx)，以與部分發(fā)生物理溶解的硫。為從液體硫中脫除H2S和H2Sx

，消除在處理，運輸和儲存液體硫磺時潛在的毒性和爆炸風險，“殼牌硫磺脫氣工藝”應運而生。采用殼牌脫氣工藝的脫氣流程能將H2S含量減至10ppmwt以下。通過噴淋器將空氣注入液體硫中，實現(xiàn)脫氣反應，一部分溶解的H2S從硫磺中被汽提出，一部分H2S發(fā)生氧化反應，產(chǎn)生單質硫。而且，從硫磺中脫除H2S能促進H2Sx分解成H2S和硫CatalyticReactionStageInthedownstreamcatalyticreactionstagestheClausequilibriumreactioniscontinuedatlowertemperaturebymeansofusingaspecialcatalystintwosubsequentreactorstages.DegassingStageThesulfurproducedintheSRUcontainsabout300ppmwtH2S,partlychemicallyboundaspolysulfides(H2Sx)andpartlyphysicallydissolved.ToremoveH2SandH2Sxfromliquidsulfur,eliminatingpotentialtoxicandexplosionhazardassociatedwithhandling,transportandstorageofliquidsulfur,the‘ShellSulfurDegassingProcess’hasbeendeveloped.DegasificationbymeansoftheShelldegassingprocessreducestheH2Scontenttolessthan10ppmwt.Degasificationisobtainedbyinjectingairviaspargersintheliquidsulfur,therebypartlystrippingthedissolvedH2Sfromthesulfurandpartlyoxidizingittoelementalsulfur.Furthermore,theremovalofH2SfromthesulfurpromotesthedecompositionofthepolysulfidesintoH2Sandsulfur27硫磺回收催化反應CatalyticReactionSta硫磺回收熱反應部分主風機—透平和減溫器主風機—透平主風機—電機酸氣分離器和酸水泵（高級燃燒器控制

酸氣壓力和流量控制空氣需求量控制燃料氣流量控制蒸汽/燃料氣流量比控制（低壓蒸汽用于冷卻）氮氣流量控制（用于啟動吹掃）

主燃燒器和燃燒室

余熱鍋爐

和排污罐ThermalReactionSectionMainAirBlower-Turbine&De-SuperheaterMainAirBlower-TurbineMainAirBlower-ElectricMotorAcidGasKnockoutandCondensatePumpsAdvancedBurnerControlAcidGasPressureandFlowControlAirDemandControlFuelGasFlowControlSteam/FuelGasFlowRatioControl(LPSteamforcooling)NitrogenFlowControl(forstart-uppurge)MainBurnerandCombustionChamberWasteHeatBoilerandBlowdownDrum28硫磺回收熱反應部分ThermalReactionSect硫磺回收催化反應部分一級硫磺冷凝冷卻器一級再熱器和反應器

二級硫磺冷凝冷卻器二級再熱器和反應器三級硫磺冷凝冷卻器尾氣控制

和旁通一級/二級/三級液硫封

CatalyticReactionSectionFirstSulfurCondenserFirstReheaterandReactorSecondSulfurCondenserSecondReheaterandReactorThirdSulfurCondenserTailGasControlandBypassFirst/Second/ThirdSulfurLocks29硫磺回收催化反應部分CatalyticReactionSSulfurRecoveryUnit脫氣部分液硫池和控制噴射器/泵/液硫池蒸汽盤管

凝結水閃蒸罐排污罐DegassingSectionSulfurPitandControlEjector/Pumps/SteamCoilCondensateFlashDrumBoilerBlowdownDrum30SulfurRecoveryUnit脫氣部分DegassThermalStage:熱反應段Inthemainburnersomeoftheacidgasfeedandairareburnt.在主燃燒器，會有酸氣供給，空氣燃燒。

H2S+1?O2->SO2+H2O+heat生熱

Theairtotheacidgasratioiscontrolledsuchthatintotal1/3ofallhydrogensulfide(H2S)isconvertedtoSO2.ThisisastronglyexothermicandpromotesthefollowingClausreaction:

空氣在酸氣中的比率需控制以讓1/3的H2S能轉化為SO2。這是一個強烈的放熱反應：2H2S+SO2→3S+2H2OSulfurRecoveryUnit硫回收裝置

(Claus)MainBurner主燃燒器1stCondenser

一級凝結器FuelGas燃料氣AcidGas酸氣Air空氣LiquidSulfur液硫MPSteam廢熱鍋爐產(chǎn)生中壓蒸汽LPSteam冷凝器產(chǎn)生低壓蒸汽

AcidGas酸氣組成H2SC02H20壓力0.07MPag198CApprox70%ofthesulfurisobtainedinthethermalprocessstep,andcondensedtoliquidstateinthe1stcondensor.大概70%的硫磺在這個步驟中產(chǎn)生，并在一級冷凝器中冷暖成液硫。AcidGasSources酸氣來源SulfurRemovalUnit脫硫裝置TailGasTreatementUnit尾氣處理裝置Producedwaterstripper產(chǎn)品氣汽提)ClausProcess克勞斯工藝

Twostages兩級1.Thermal熱反應段2.Catalytic催化反應31ThermalStage:熱反應段SulfurRecoSulfurRecoveryUnit硫回收裝置

(Claus)MainBurner主燃燒器1stCondenser

一級冷凝器1stReactor

一級反應器FuelGas燃料氣AcidGas酸氣Air空氣LiquidSulfur液硫1streheater

一級再熱器MPSteamMPSteam<1t/hAcidGas67%H2S29%C024%H20LPSteamCatalyticstep催化階段TheClausreactioncontinuesinthecatalyticstepwithactivated,andservestoboostthesulfuryield.Morehydrogensulfide(H2S)reactswiththeSO2formedduringcombustioninthemainburner,andresultsingaseous,elementalsulfur.

在活性氧化鋁催化劑的作用下，克勞斯反應在催化階段繼續(xù)，產(chǎn)生硫磺。在主燃燒器燃燒階段，更多的H2S和SO2反應，產(chǎn)生氣態(tài)元素硫。2H2S+SO2→3S+2H2O

Thecatalyticstepconsistsofthreesubsteps:催化階段由以下3個分部組成：1)heatingtopreventsulfurcondensationinthecatalystbed,whichcanleadtocatalystfouling,過程氣再熱，獲得反應器合適的溫度，以與防止硫磺在催化劑床凝結導致催化劑污染。2)catalyticreactionand催化反應3)coolingpluscondensation.硫磺冷凝2ndCondenser

二級冷凝器32SulfurRecoveryUnit硫回收裝置

(ClaSulfurRecoveryUnit硫回收裝置

(Claus)MainBurner主燃燒器1stCondenser一級冷凝器1stReactor一級反應器2ndCondenser二級凝結器TailGastoTGTU到尾氣處理裝置的尾氣2ndreheater二級再熱器2ndReactor二級反應器FuelGas燃料氣AcidGas酸氣Air空氣LiquidSulfur液硫1streheater一級再熱器3rdCondenser三級凝結器MPSteamMPSteamAnalyzersforH2SandSO2onTailGascontroltheamountofairtotheMainburnertomaintainthe2:1Ratio.三級冷凝器出口的H2S和SO2分析儀控制到主燃燒器的空氣比率為２：１。AcidGas67%H2S29%C024%H20LPSteam330C33SulfurRecoveryUnit硫回收裝置

(ClaLiquidSulfurDe-gasing液硫脫氣液流來自液硫封Liquidsulfurfromsulfurlocks液流池Sulfur

Pit脫氣后的液流去硫磺廠儲罐degassedliquidsulfurtothetanksinsulfurplant鼓泡空氣Airbubble34LiquidSulfurDe-gasing液硫脫氣液流來ENVIRONMENT

FOCUS

環(huán)保關注點氣體污染：酸氣(H2S,SO2)泄漏Gaspollution:acidgas(H2S,SO2)leakage固體污染：固廢物堆放、催化劑儲存與填裝時的粉塵Solidpollution:solidwastepiles,dustwhenstoringandfillingcatalyst液體污染：鍋爐排污、冷凝器排污、液硫與液硫池泄漏Liquidpollution:boilerblowdown,condenserblowdown,liquidsulfurleakage,andsulfurpitleakage熱輻射：燃燒爐、再熱爐、冷凝器、反應器、蒸汽泄漏Heatradiation:burner,reheatingfurnace,condenser,reactorandsteamleakage噪聲污染：管線噪聲、機械噪聲Noisepollution:ductpollution,mechanicalpollutionENVIRONMENTFOCUS

環(huán)保關注點氣體污染：酸氣35尾氣處理單元TailGasTreatmentUnit(TGTU)36尾氣處理單元36GasPlantoverviewSulfurRemovalUnit脫硫裝置(2)TailGasTreatment&SourH2OStripping尾氣處理&酸H2O汽提(1)SulfurRecoveryUnit硫磺回收裝置(1)SulfurRemovalUnit脫硫裝置(1)CommercialMeteringStation商業(yè)計量站Dehydration三甘醇脫水LiquidSulfurStorageTanks液硫儲罐Incinerator

灼燒爐SulfurForming硫成型Incinerator灼燒爐SulfurRecoveryUnit硫磺回收裝置(2)TailGasTreatment&SourWaterStripping尾氣處理&酸H2O汽提(2)FeedGasFromGasTerminalStation

來自末站的原料氣WetTreatedGas

處理濕氣AcidGas酸氣AcidGas酸氣AcidGas酸氣SalesGastoGrid商品氣至管網(wǎng)ProductSulfurtoStorage硫磺產(chǎn)品儲存VenttoAtm.VenttoAtm.AcidGas酸氣37GasPlantoverviewSulfurRemov尾氣處理裝置三個階段中的工藝和設備:SCOT反應部分-SCOT尾氣處理裝置的作用是利用特殊催化劑將硫磺回收裝置排放的尾氣中的硫化物轉化為硫化氫焚燒爐部分-焚燒爐部分用來焚燒脫水裝置、Claus和SCOT裝置排放的尾氣酸水汽提部分-脫硫單元、硫磺回收單元和SCOT單元產(chǎn)生的污水進入酸水汽提塔脫去硫化氫。然后含硫化氫的尾氣被送往硫磺回收裝置進行硫回收。TGTU

尾氣處理裝置ThreestagesthatmakeuptheTailGasTreatingUnit:SCOT

ReactionSection-ThepurposeoftheSCOTsectionistoconvertsulfurintheoff-gasfromSulfurRecoverytoHydrogenSulfideusingspecialcatalystIncineratorSection-IntheIncineratorSection,theobjectiveistocombustwastegassesfromtheDehydrationUnit,ClausandSCOTsectionsbeforeatmosphericventing.SourWaterStrippingSection-ProcesswatersfromtheSCOT,SulfurRemovalandSulfurRecoveryplantsfeedtheSourWaterStrippercolumnwhereHydrogenSulfideisremoved.Theoff-gasissenttoSulfurRecoveryforconversion38尾氣處理裝置三個階段中的工藝和設備:TGTU尾氣處理裝置TTGTU尾氣處理裝置設備表—尾氣處理裝置-SCOT部分SCOT燃燒器

混合室SCOT反應器余熱鍋爐排污罐急冷塔噴射器急冷水泵急冷水冷卻器急冷水后冷卻器過濾器SCOT吸收塔環(huán)丁砜胺液泵—電機泵環(huán)丁砜胺液泵—透平泵減溫器

EquipmentTable–TailGasTreatingUnit-SCOTSection:SCOTBurnerMixingChamberSCOTReactorWasteHeatBoilerBlowdownDrumQuenchColumnEjectorsQuenchPumpsQuenchCoolerTrimCoolerFilterSCOTAbsorberSulfinol-M(Solvent)MotorPumpSulfinol-MTurbinePumpDe-Superheater39TGTU尾氣處理裝置設備表—尾氣處理裝置-SCOT部分EqTGTU尾氣處理裝置灼燒爐部分:灼燒爐風機—透平驅動

灼燒爐風機—電機驅動

閃蒸氣罐

灼燒爐燃燒器

灼燒爐燃燒室

余熱鍋爐分離器

過熱器

尾氣煙囪

IncineratorSection:IncineratorAirBlower-TurbineDriverIncineratorAirBlower–MotorDriverFlashDrumIncineratorBurnerIncineratorChamberWasteHeatBoilerSeparatorSuperheaterStack40TGTU尾氣處理裝置灼燒爐部分:IncineratorSTGTU尾氣處理裝置酸水汽提部分:酸水收集罐

酸水汽提塔進料泵

汽提水冷卻器

急冷水后冷卻器

換熱器

汽提塔

酸水汽提塔塔底泵

重沸器

酸水汽提塔冷凝器

酸水汽提塔回流泵酸水汽提塔回流罐

污水罐

蒸汽噴射器

工廠邊界SourWaterStripper:SourWaterStripperCollectionDrumStripperFeedPumpsStrippedWaterCoolerTrimCoolerHeatExchangerStrippingColumnStrippedWaterPumpsReboilerStrippingCondenserStripperRefluxPumpsRefluxDrumWasteWaterDrumSteamEjectorPlantBatteryLimit41TGTU尾氣處理裝置酸水汽提部分:SourWaterSSCOTReactor反應器SCOTReheater再熱器TailGasTreatmentUnit尾氣處理裝置MPSteam中壓蒸氣Tailgas尾氣

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