I-Gas Sweetening Skid idibanisa i-Molecular Sieve Desulphurization kunye ne-TEG Dehydration kwizityalo ze-LNG zesizukulwana esilandelayo
Njengoko ishishini legesi yendalo elinyibilikisiweyo (LNG) kwihlabathi liphela liqhubela phambili kwiinkcukacha eziphezulu zokucoceka ngo-2026, i-skid yokwenza i-gas sweetening Iguqukele ekubeni yindawo yokunyanga edityaniswe ngokupheleleyo, idibanisa i-molecular sieve desulphurization ephucukileyo kunye neyunithi yokuphelisa amanzi kwigesi ye-TEG ukuze inike igesi yokutya eyomileyo kakhulu, engenasulfur yokuhambisa amanzi amdaka angaphantsi komsinga.
Ngokwesiko, iinkqubo ezisekelwe kwi-amine bezisingatha ukususwa kwegesi ene-asidi eninzi, kodwa inkqubo yanamhlanje yokuthambisa igesi ngoku ibandakanyaUkususwa kwe-molecular ngesihluzo umaleko—kusetyenziswa ii-zeolite zokwenziwa ezinobukhulu beembobo ezilawulwa ngokuchanekileyo—ukupolisha umjelo wegesi ngokufunxa ii-mercaptans ezisele, i-COS, kunye nokulandelela i-H₂S ukuya kumanqanaba angaphantsi kwe-ppm. Olu daka olunzulu lokususa i-sulphurization lubalulekile kwi-LNG plant cryogenic heat exchangers, apho iikhompawundi zesulfure ezincinci zinokubangela ukwakheka okuqinileyo kunye nokungcolisa kwi--162 °C.
Idibene nale bhedi yesihluzo semolekyuli kukho iyunithi yokuphelelwa ngamanzi kwegesi ye-TEG, esebenzisa i-triethylene glycol ukufunxa umphunga wamanzi, ifikelela ekuthotyweni kwe-dew-point ye-40–60 °C kwaye yehlise umxholo wamanzi ube ngaphantsi kwe-0.1 lb/MMscf. Xa icwangciswe ngolandelelwano kwi-skid enye yokuthambisa igesi, i-desulphurization ye-Molecular sieve edibeneyo kunye ne-TEG dehydration sequence iqinisekisa ukuba igesi ephathwayo ihlangabezana neemfuno zokungena kwepayipi kunye ne-LNG plant ngaphandle kwesidingo seenqanawa ezahlukeneyo, ezithatha indawo.
Idatha yakutshanje evela kwisityalo esikhulu se-LNG eMzantsi-mpuma Asia ibonisa ukuba ukutshintsha iiyunithi ezizimeleyo nge-integrated gas sweetening skid kunciphisa unyawo ngama-35% kwaye kunciphisa ukusetyenziswa kwamandla okuhlaziya phantse ngama-20%. Abaqhubi bakwaxhamla kwizixhobo ezisetyenziswa kunye, iivalvu zokutshintsha ezizenzekelayo, kunye ne-gas loop eqhelekileyo yokuhlaziya ephucula ukusebenza kakuhle kobushushu.
“Njengoko imida yokukhupha umbane engqongqo isebenza kulo nyaka, ukutyibilika kwegesi akuseyonto nje yokongeza—yintliziyo yemisebenzi yezityalo ze-LNG ethembekileyo,” utshilo injineli ephezulu yenkqubo kwinkampani ephambili ye-EPC. “Ukususwa kwe-molecular sieve desulphurization kunika ukupholisha kokugqibela, ngelixa Iyunithi yokuphelisa amanzi emzimbeni ngegesi ye-TEG iqinisekisa ukusebenza kakuhle okungenakuqandwa; xa zidibene, zenza uloliwe oqinileyo wonyango lwangaphambi konyango oluphucula ixesha lokusebenza kolwelo.
Njengoko amandla e-LNG kwihlabathi liphela esanda ngaphezulu kweetoni ezingama-60 ezigidi ngonyaka ngo-2026-2027, imfuno ye-skids ezithambileyo zegesi ezisebenza kakuhle nezine-sieve ye-molecular edibeneyo kunye nokuphelelwa ngamanzi emzimbeni yi-glycol kulindeleke ukuba ikhule, nto leyo eqhuba ubuchule kuyilo lwe-modular olufakwe kwi-skid kunye nobuchule bokujonga kude.
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