I-Gas Sweetening Skid Ihlanganisa i-Molecular Sieve Desulphurization kanye ne-TEG Dehydration yezitshalo ze-LNG zesizukulwane esilandelayo
Njengoba imboni yomhlaba wonke yegesi yemvelo ewuketshezi (i-LNG) iqhubekela phambili ekufinyeleleni ekucacisweni okuphezulu kokuhlanzeka ngo-2026, i-skid yokuphuza igesi iphenduke yaba yindawo yokwelapha ehlanganiswe ngokugcwele, ihlanganisa i-molecular sieve desulphurization ethuthukisiwe ne-TEG gas dehydration unit ukuze inikeze igesi yokondla eyomile kakhulu, engenasibabule ukuze kuncishiswe uketshezi olungaphansi komfula.
Ngokwesiko, izinhlelo ezisekelwe kuma-amine zazisingatha ukususwa kwegesi enobuthi, kodwa i-gas sweetening skid yanamuhla manje ihlanganisaUkususwa kwe-molecular ngesihlungo ungqimba—kusetshenziswa ama-zeolite okwenziwa anobukhulu be-pore obulawulwa kahle—ukupholisha umfudlana wegesi ngokumunca ama-mercaptan asele, i-COS, nokulandelela i-H₂S phansi kumazinga angaphansi kwe-ppm. Lokhu kususwa kwe-sulphurization okujulile kubalulekile kuma-heat exchanger e-LNG plant cryogenic, lapho ngisho nama-compounds amancane esibabule angabangela ukwakheka okuqinile kanye nokungcola ku--162 °C.
Kuhlanganiswe nalesi sivivane se-molecular kukhona iyunithi yokuphelelwa amanzi yigesi ye-TEG, esebenzisa i-triethylene glycol ukumunca umhwamuko wamanzi, ifinyelele ekucindezelweni kwama-dew-point angu-40-60 °C futhi yehlise okuqukethwe kwamanzi kube ngaphansi kuka-0.1 lb/MMscf. Uma ihlelwe ngokulandelana ku-skid eyodwa yokunandisa igesi, i-Molecular sieve desulphurization ehlanganisiwe kanye ne-TEG dehydration sequence iqinisekisa ukuthi igesi elashwe ihlangabezana nezidingo zokungena kwepayipi kanye ne-LNG plant ngaphandle kwesidingo semikhumbi ehlukene, edla isikhala.
Idatha yakamuva yasensimini evela esitshalweni esikhulu se-LNG saseNingizimu-mpumalanga ye-Asia ikhombisa ukuthi ukufaka esikhundleni amayunithi azimele nge-integrated gas sweetening skid kunciphisa umthelela ngo-35% futhi kunciphisa ukusetshenziswa kwamandla okuvuselela cishe ngo-20%. Abasebenzi bayazuza futhi ngezinsimbi ezihlanganyelwe, ama-valve okushintsha okuzenzakalelayo, kanye ne-gas regeneration loop evamile ethuthukisa ukusebenza kahle kokushisa.
“Njengoba imikhawulo eqinile yokukhishwa komoya iqala ukusebenza kulo nyaka, ukushelela kwegesi akuseyona nje into yokwengeza—kuyinhliziyo yokusebenza kwesitshalo se-LNG okuthembekile,” kusho unjiniyela omkhulu wenqubo enkampanini ehamba phambili ye-EPC. “Ukususwa kwe-molecular sieve desulphurization kunikeza ukupholisha kokugcina, kuyilapho Iyunithi yokuphelelwa amanzi emzimbeni ngegesi ye-TEG iqinisekisa ukusebenza kahle okumelana nokuqandisa; ndawonye, bakha isitimela esiqinile sokwelashwa kwangaphambi kwesikhathi esisebenzisa isikhathi esiningi sokuphuza uketshezi.
Njengoba umthamo we-LNG womhlaba wonke ukhula ngamathani angaphezu kwezigidi ezingama-60 ngonyaka ngo-2026-2027, isidingo sama-skid aqinile, asebenza kahle kakhulu okwandisa ukunambitheka kwegesi ane-sieve yama-molecule ehlanganisiwe kanye nokuphelelwa amanzi emzimbeni kwe-glycol kulindeleke ukuthi sikhule, okuqhuba ukusungula izinto ezintsha ekwakhiweni kwe-modular okufakwe kuma-skid kanye namakhono okuqapha akude.
Xhumana:
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