（2） Amadivayisi okususa igesi yemvelo
Amagesi e-Feed angena ku- amayunithi okususa igesi yemvelo ngokulandelana. Le yunithi isebenzisa ikhambi le-MDEA ukususa amagesi ane-asidi njenge-CO22 kanye no-H2S kugesi yokuphakelayo.
Igesi yemvelo ingena isuka engxenyeni engezansi yombhoshongo wokumunca bese idlula embhoshongweni wokumunca kusuka phansi kuya phezulu; isixazululo se-MDEA esivuselelwe ngokugcwele (uketshezi olungenamafutha) singena sisuka engxenyeni engenhla yombhoshongo wokumunca bese sidlula embhoshongweni wokumunca kusuka phezulu kuya phansi. Isixazululo se-MDEA kanye negesi yemvelo egeleza ngakolunye uhlangothi kusembhoshongweni wokumunca. Ngemva kokuthintana ngokugcwele, i-CO22 kanye no-H2Igesi iyamuncwa bese ingena esigabeni soketshezi. Izingxenye ezingamuncwanga ziholwa zisuka phezulu kombhoshongo wokumuncwa bese zingena esiqandisini segesi esisusa isulfurization kanye nesihlukanisi. Igesi ephuma esihlukanisi segesi esisusa isulfurization ingena kudivayisi yokuphelelwa amanzi ngesihlungo sama-molecule, bese i-condensate iya ethangini le-flash.
H2Okuqukethwe kwe-S ezintweni zemvelo ezicutshunguliwe kungaphansi kuka-5 mg/Sm3.
I-MDEA emunce i-H2I-S ibizwa ngokuthi uketshezi olucebile futhi ithunyelwa embhoshongweni wokuhwamuka kwe-flash. Igesi yemvelo ekhishwa ngokukhishwa kwengcindezi ithunyelwa ohlelweni lukaphethiloli. Ngemva kokuba uketshezi olucebile olukhanyayo lushintshana ngokushisa nesisombululo (uketshezi olungenamafutha) oluphuma phansi kombhoshongo wokuvuselela, izinga lokushisa liphakanyiswa liye ku-~98°C engxenyeni engenhla yombhoshongo wokuvuselela, lapho ukuhlubula nokuvuselela kwenziwa khona embhoshongweni wokuvuselela kuze kube yilapho izinga loketshezi olungenamafutha olungenamafutha lifinyelela ekuhlosweni.
Uketshezi oluthambile oluphuma embhoshongweni wokuvuselela ludlula ku-exchanger yokushisa koketshezi olucebile kanye ne-cooler yoketshezi oluthambile. Uketshezi oluthambile luyapholiswa lufike ku-~104°F. Ngemva kokucindezelwa yiphampu yoketshezi oluthambile, lungena lusuka engxenyeni engenhla yombhoshongo wokumunca.
Igesi etholakala phezulu embhoshongweni wokuvuselela idlula efrijini le-carbon dioxide bese ingena emshinini wokuhlukanisa i-carbon dioxide. Igesi ephuma esihlukanisi se-carbon dioxide ithunyelwa ohlelweni lokukhipha i-carbon dioxide. I-condensate icindezelwa yiphampu ye-reflux bese ithunyelwa embhoshongweni wokuvuselela.
Umthombo wokushisa we-reboiler yombhoshongo wokuvuselela unikezwa uwoyela wokudlulisa ukushisa osezingeni eliphakathi ovela ohlelweni lwawoyela wokudlulisa ukushisa.
Igesi ene-asidi ekhishwa uhlelo lokususa i-sulfurization ikhishwa ngqo emoyeni. Empeleni akukho manzi angcolile akhishwayo, futhi amanzi akhishwa yigesi ene-asidi akhishwa ngohlelo lokulinganisela amanzi akhishwe usawoti; amanzi akhishwa uhlelo lokususa amanzi angena ohlelweni lokuhlanza indle ngohlelo lokukhipha amanzi oluvaliwe bese ekhishwa ngemva kokudlula kokwelashwa.
(3) Ukuphelelwa amanzi emzimbeni ngegesi yemvelo amadivayisi
Le divayisi isebenzisa ubuchwepheshe bokudonswa kwegesi ngokushintshashintsha kwezinga lokushisa ukuze kuhlukaniswe futhi kuhlanzwe igesi. Ubuchwepheshe bokudonswa kwegesi ngokushintshashintsha kwezinga lokushisa busekelwe ekudonsweni kwegesi okubonakalayo ebusweni bangaphakathi be-adsorbent (izinto eziqinile ezinezimbobo). Amandla okudonswa kwegesi ashintsha ngokushisa kanye nokucindezela kokudonswa. Ngaphansi kwesimo sokuthi i-adsorbent imunca ngokukhetha izingxenye zegesi ezahlukene, imunca izingxenye ezithile kugesi exubile ekushiseni okuphansi kanye nokucindezela okuphezulu, kanti izingxenye ezingadonswanga zigeleza ngesendlalelo se-adsorber, futhi zimunca lezi zingxenye ezidonswayo ekushiseni okuphezulu kanye nokucindezela okuphansi. Kokunye okulandelayo kokudonswa kwegesi okuphansi kanye nokucindezela okuphezulu, imibhoshongo eminingi yokudonswa ingasetshenziswa ukufeza injongo yokuhlukaniswa kwegesi okuqhubekayo.
I iyunithi yokomisa igesi yokondla ifakwe ama-adsorber amathathu okusebenza ngokushintsha, okuhlanganisa elilodwa lokumunca, elinye lokufutha okubandayo, kanye nelinye lokufudumeza nokuvuselela.
Iyunithi yokomisa igesi yokuphakelwa isebenzisa inani elincane legesi yokuphakelwa njengendawo yokufutha ebandayo kanye neyokuvuselela. Ngemva kokuba igesi evuselelwe iphume embhoshongweni wokumunca, iyapholiswa bese ihlukaniswa bese icindezelwa nge-booster bese ithunyelwa embhoshongweni wokumunca ukuze imunca.
Igesi yokuvuselela idlula kuqala ku-adsorber epholile kusukela phezulu kuya phansi. Bese igesi yokuvuselela ishiswa izinga lokushisa lokuvuselela elingu-392 ~ 428 ° F yi-heater yokuvuselela, bese ingena kusukela phansi kwe-adsorber ukuze isuse amanzi afakwe yi-adsorbent. Igesi yokuvuselela iphuma phezulu kwe-dryer, ipholiswe yi-cooler yokuvuselela, bese ingena ku-regeneration gas separator. Ngemva kokuba uketshezi seluhlukanisiwe, ingena ku-supercharger bese icindezelwa bese ithunyelwa embhoshongweni we-adsorption ukuze isetshenziswe.
Ngemva kokudlula kule yunithi, amanzi egesi yemvelo eyomile angama-≤ 15 ppm.
Xhumana:
I-Sichuan Hengzhong Automation Equipment Co., Ltd.
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Isikhathi sokuthunyelwe: Jan-24-2024