Intuthuko Ebuchwephesheni Bokuhlikihla Ama-Molecular Ithuthukisa Ukukhishwa Kwe-sulfur kanye Nokusebenza Kahle Kokuhlanzwa Kwegesi
Imboni yokucubungula igesi yemvelo ibona intuthuko ebalulekile kubuchwepheshe bokususa i-sulphurization yesihlungo sama-molecule kanye nokuphelelwa amanzi emzimbeni, okuqhutshwa ukwanda kwezidingo zemininingwane kaphethiloli ehlanzekile kakhulu kanye nokusebenza kahle. Izinto ezintsha zakamuva zigxile ekuthuthukiseni ukuzinza kwe-catalyst kanye namakhono okuvuselela imishini yokuphelelwa amanzi emzimbeni wegesi yemvelo, ikakhulukazi izitshalo ze-LNG kanye nokululama kwe-NGL ekusetshenzisweni kwegesi yemvelo.
Okuphambili ukuthuthukiswa kwezisefo zama-molecular ze-mesoporous ezifakwe i-cobalt-doped ezihlanganiswe ne-N,N-dihydroxypyromellitimide (Co-SBA-15-NDHPI), okubonisa ukuzinza okurekhodiwe ngesikhathi sokususwa kwe-oxidative okubangela i-catalytic. Le nhlanganisela ye-organic-inorganic iqinisa umphumela wokubambisana phakathi kwezingxenye ezisebenzayo kanye nezisekelo ezinezimbobo, ithuthukisa kakhulu ukusebenza kahle kokuguqulwa kwe-sulfide-to-sulfone ngenkathi imelana nokungasebenzi.
Kuhlanganisiwe Amayunithi Okuqeda Ukuphelelwa Yimanzi Emzimbeni Ukuthola Ukudonsa
Imiklamo yesimanje yamayunithi okukhipha amanzi emzimbeni ihlanganisa lezi ntuthuko nezinhlaka zokusebenza ezilungiselelwe kahle:
Ukulungiswa kwe-Modular: Amayunithi afakwe ku-skid anokushintsha okuzenzakalelayo phakathi kokumuncwa, ukuvuselelwa, kanye nemijikelezo yokupholisa (izinhlelo ezimbili noma ezintathu) zivumela ukusebenza okuqhubekayo kwe--70°C dewpoint kubalulekile kakhulu I-LNG/Izinqubo ze-NGL
Ukusebenza kahle kokuvuselelwa: Ama-heater asebenza ngqo noma kagesi manje avuselela ama-seeve ama-molecule ku-230-300°C esebenzisa igesi eyomile ehambisanayo, abuyisela amandla okufakwa kwe-adsorption ngenkathi enciphisa ukusetshenziswa kwamandla ngamaphesenti afinyelela ku-30%.
Ukulawulwa kokungcola okuningi: Izisefo zama-molecule zesizukulwane esilandelayo zihlose ngasikhathi sinye i-H₂S, i-SO₂, kanye nomhwamuko wamanzi ngezakhiwo ze-pore ezilungiselelwe wena—ezinezimbobo ezincane (
Ukusetshenziswa Kwensimu Nokusebenza
Esigungwini saseShandong LNG eShayina, amayunithi okuphelelwa amanzi emzimbeni wesihlungo sama-molecule athuthukisiwe anciphise imvamisa yokuvuselelwa ngo-40% ngenkathi egcina imininingwane yegesi yomkhiqizo ingaphansi kwama-compounds esibabule angu-0.1 ppm kanye nephuzu lamazolo -70°C. Ngokufanayo, iPermian Basin Ukutakula kwe-NGL Izikhungo zibika isikhathi sokuphila sesihlungo eside ngo-15% ngemva kokushintshela kumasihlungo e-ZSM-5 aguqulwe nge-vanadium, okuthuthukisa ukusebenza kahle kwe-thiophene desulfurization ngo-11% uma kuqhathaniswa nezinto ezivamile.
"Ukuhlanganiswa kwezingxenye zokususa i-sulfurization ezizinzile kakhulu ngaphakathi kwemibhoshongo yokuphelelwa amanzi emzimbeni kumelela ushintsho olubonakalayo. Izitshalo azisadingi amayunithi ahlukene okususa isibabule namanzi, zinciphisa i-CAPEX ngo-25% ngenkathi zifinyelela igesi ekhethekile yepayipi ngesinyathelo esisodwa." — Umholi Wobunjiniyela Be-Petrochemical eJiangsu Rudy
Njengoba ukuhweba kwe-LNG emhlabeni wonke kulindeleke ukuthi kukhule ngo-70% ngo-2040, ukusungulwa kwesihlungo sama-molecular kukulungele ukusekela imigomo emibili yemboni yokwandisa nokunciphisa ukukhishwa kwegesi. Ucwaningo oluqhubekayo luhlose izihlungo ezisekelwe ku-MOF ezinamakhono okuhlukaniswa kwama-molecule ukuze kususwe ngesikhathi esisodwa izinhlobo ze-mercury, amanzi, kanye ne-sulfur emishinini yokuphelelwa amanzi kwegesi yemvelo yesizukulwane esilandelayo.
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