Igesi yemvelo emanzi esimweni sokugcwala ihlukaniswa yisihlukanisi sesihlungi ukuze ihlukanise amaconsi oketshezi angu-5 μ m nangaphezulu, bese ingena ekamelweni lokuhlukanisa igesi noketshezi engxenyeni engezansi ye- Umbhoshongo wokumunca we-TEG (Triethylene gly) kwe iyunithi yokuphelelwa amanzi emzimbeni ukuhlukanisa uketshezi olukhululekile olungalethwa embhoshongweni wokumunca lapho isihlukanisi sesihlungi sisesimweni sengozi. Ngena esigabeni sokumunca ngesikhuphuli sombhoshongo wokumunca. I-TEG evuselelwe ipompelwa phezulu kombhoshongo wokumunca ukuze ixhumane ngokugcwele negesi yemvelo kusukela phansi kuya phezulu embhoshongweni wokumunca ukuze kudluliswe ubuningi futhi kususwe umswakama. Igesi yemvelo eyomile ikhishwa embhoshongweni ngemva kokususa amaconsi e-glycol angaphezu kuka-5 μ m nge-tower top mist catcher.
Ngemva kokuphuma embhoshongweni, ukushisa kushintshaniswa ne-glycol eshisayo engashisi ngaphambi kokungena embhoshongweni nge-tubular heat exchanger ukunciphisa izinga lokushisa le-TEG engena embhoshongweni. Ngemva kokushintshaniswa kokushisa, igesi yemvelo ingena kwisihlukanisi sesihlungi ukuze ihlukanise i-glycol ethwalayo bese ingena epayipini lokuthumela ngaphandle. I-TEG ecebile, emunca umswakama kugesi yemvelo, iphuma embhoshongweni wokumunca bese ingena ku-valve yokulawula izinga loketshezi. Ngemva kokunciphisa ukucindezeleka, ingena epuletini lokupholisa le-reflux phezulu kwekholomu yokuncibilikisa uketshezi ukuze ishintshanise ukushisa nomoya oshisayo okhiqizwa ku-reboiler. Ngemva kokunikeza amandla okupholisa e-reflux phezulu kwekholomu, i-TEG ecebile ishiswa cishe ku-50 ℃. Ipayipi lokukhipha lingena ethangini le-TEG flash. I-glycol ecebile icindezelwa ibe ngu-0.4MPa ~ 0.6MPa ethangini le-flash. Igesi ye-hydrocarbon namanye amagesi ancibilikisiwe ku-TEG ayakhishwa, futhi lawa magesi asetshenziswa njengegesi kaphethiloli yokushisa i-reboiler.
Ngemva kokukhanyisa, i-TEG ewuketshezi ecebile ingena esihlungini somshini ukuze ihlunge ukungcola komshini, bese ingena esihlungini se-carbon esisebenzayo ukuze imunce izinto ze-hydrocarbon ezincibilikisiwe ku-TEG kanye nezinto zokubola ze-TEG. Bese ingena ku-plate type rich and mild liquid heat exchanger ukuze ishintshane ngokushisa ne-TEG ethambile yokushisa ephezulu evela ethangini eliphansi le-TEG reboiler. Izinga lokushisa lokushintshana ngokushisa lenyuka lifike ku-120 ~ 130 ℃ bese lingena kukholomu ye-liquid distillation ecebile.
Ku-TEG reboiler phansi kwekholomu yokuhluza, i-TEG ishiswa kufike ku-193 ℃, bese amanzi aku-TEG ehlukaniswa futhi akhishwe phezulu kwekholomu yokuhluza. Ukuhluza okungaba ngu-99% (WT) kwe-lean glycol kugcwala ethangini elingaphansi le-TEG heat exchange buffer yikholomu yokuhluza uketshezi oluthambile ku-reboiler. Ngaphansi kwesenzo segesi eyomile kukholomu yokuhluza uketshezi oluthambile, ukuhluza kwe-lean glycol engena ethangini lokuhluza ukufudumala kungafinyelela ku-99.5% ~ 99.8%.
Ethangini le-glycol buffer, i-glycol engenamandla enokushisa okungaba ngu-193 ℃ ingena ku-glycol heat exchanger ecebile nembi ukuze ishintshane ngokushisa ne-glycol ecebile. Lapho izinga lokushisa lehla laya cishe ku-100 ℃, lingena empompini. I-TEG engenamandla iphonswa ku-external gas-liquid heat exchanger yombhoshongo wokumunca ngepompo. Ngemva kokupholisa nge-gas heat exchanger ephuma embhoshongweni, ingena phezulu kombhoshongo wokumunca kusuka engxenyeni engenhla yepayipi le-casing ukuze iqedele ukujikeleza kwe-solvent.
Umfudlana wegesi eyomile ukhishwa engxenyeni yegesi eyomile endaweni yokuphuma kombhoshongo wokumunca, bese ungena epayipini lokushisa legesi eyomile lethangi le-heat exchange buffer engxenyeni engezansi ye-TEG reboiler. Ngemva kokufudunyezwa yi-TEG eyomile, icindezelwa ibe yi-0.4MPa nge-valve elawula ukucindezela ezisebenzela yona bese ingena ethangini le-fuel gas buffer. Ngemva kokuphuma ethangini le-fuel gas buffer, ihlukaniswe yaba izindlela ezimbili, enye yazo ifudunyezwa bese ingena engxenyeni engezansi yekholomu ye-lean liquid stripping njengegesi ye-lean liquid stripping, kanti enye njengegesi ye-fuel ye-reboiler. Lena inqubo ye amanzi akhipha igesi yemvelo.
Isikhathi sokuthunyelwe: Feb-26-2023