Ukuqhathanisa kobuchwepheshe nokukhetha
Inqubo yokuncibilika kwegesi yemvelo ngokuyisisekelo ihlanganisa ukukhishwa kwegesi ephakelayo (ukuhlanzwa), ukucwiliswa koketshezi, ukucindezela komjikelezo wesiqandisi, ukugcinwa komkhiqizo, ukulayisha kanye nezinhlelo ezisizayo. Ukugeleza kwenqubo eyinhloko kuhlanganisa ukuhlanzwa kwegesi yokuphakelayo kanye nokuxutshwa kwegesi ehlanzekile.
Ukukhethwa kwenqubo yokuhlanza igesi yemvelo
Igesi yemvelo njengegesi ephakelayo kufanele ihlanzwe kahle ngaphambi koketshezi. Okungukuthi, susa igesi ye-asidi, amanzi nokungcola kugesi yokudla, njenge-H2S, CO2, H2I-O, Hg nama-hydrocarbon anephunga elimnandi, ukuze ivinjwe emakhazeni ezingeni lokushisa eliphansi kanye nokuvinjwa nokugqwala kwemishini namapayipi.
A)Ithebula 1-1 libala izindinganiso zokwelashwa kwangaphambili kwegesi ephakelayo embonini ye-LNG kanye nobuningi bokuqukethwe kokungcola.
Ithebula 1-1 inani eliphakeme elivumelekile lokungcola kwegesi ye-LNG
| Ukungcola | Umkhawulo wokuqukethwe | Isisekelo |
| H2O | ＜1ppmV | A (ivunyelwe ukweqa umkhawulo wokuhlakazwa ngaphandle kokukhawulela ukukhiqizwa) |
| CO2 | 50 ~ 100ppmV | B (Ultimate solubility) |
| H2S | ＜4ppmV | C (izidingo zobuchwepheshe bomkhiqizo) |
| Isamba sokuqukethwe kwesibabule | 10-50mg/Nm3 | C |
| Hg | ＜0.01μg/Nm3 | A |
| I-hydrocarbon enephunga elimnandi | ≤10ppmV | A noma B |
| Ingqikithi yama-naphthenic hydrocarbons | ≤10ppmV | A noma B |
Kusukela kudatha yegesi yokuphakelayo, okuqukethwe kwe-carbon dioxide kugesi ephakelayo kudlula izinga futhi kufanele kuhlanzwe.
Inqubo ye-MDEA amine liquid iyinqubo efaneleke kakhulu mayelana nokusetshenziswa kwamandla, isikali sokwelapha kanye nezindleko zokutshala izimali kanye nokusebenza. Ngakho-ke, inqubo ye-MDEA amine liquid ikhethelwa igesi yokuqeda i-acidification kulolu hlelo.
B) Ukukhetha inqubo yokuphelelwa amanzi emzimbeni
Ukuba khona kwamanzi egesi yemvelo ngokuvamile kuholela emiphumeleni emibi kakhulu: ngaphansi kwezimo ezithile, amanzi negesi yemvelo yenza i-hydrate ukuze ivimbele ipayipi futhi ithinte inqubo yokupholisa i-liquefaction; Ngaphezu kwalokho, ukuba khona kwamanzi kuzophinde kubangele ukusetshenziswa kwamandla okungadingekile; Ngenxa yokushisa okuphansi kwe-liquefaction yegesi yemvelo kanye nokuba khona kwamanzi, imishini izoba yiqhwa futhi ivinjwe, ngakho-ke kufanele iphelelwe amanzi.
Inqubo yokuphelelwa amanzi kwegesi yemvelo ngokuvamile kuhlanganisa izigaba ezintathu: ukushisa okuphansi kwamanzi emzimbeni, i-solid desiccant adsorption kanye nokumuncwa kwe-solvent. Ukuhlukaniswa okuqandayo kusetshenziswa kakhulu ukugwema amanzi lapho izinga lokushisa legesi yemvelo liphansi. Kodwa-ke, izinga lokushisa eliphansi elikuvumelayo lilinganiselwe futhi alikwazi ukuhlangabezana nezidingo ze-liquefaction yegesi yemvelo; Ukumuncwa kwe-solvent ngokuvamile kuhlanganisa i-asidi egxilile (ngokuvamile i-asidi ephilayo njenge-concentrated phosphoric acid), i-glycol (evame ukusetshenziswa i-triethylene glycol), njll. Izindlela ezivamile zokuqeda amanzi emzimbeni we-desiccant eqinile yindlela ye-silica gel,indlela ye-molecular sievenoma inhlanganisela yalezi zindlela ezimbili.
Indlela ye-adsorption eqinile kufanele yamukelweigesi yemvelo liquefaction dehydration . Ngenxa yokuthi isisefo samangqamuzana sinezinzuzo zokukhetha okunamandla kwe-adsorption, izici eziphezulu zokukhanga ngaphansi kokucindezela okuyingxenye komhwamuko ophansi kanye nokususwa okwengeziwe kwegesi ye-asidi esele, isisefo se-molecular 4A sisetshenziswa njenge-adsorbent yokuphelelwa amanzi emzimbeni kulesi siphakamiso.
C) Ukukhethwa kwenqubo yokususa i-mercury
Njengamanje, kunezinqubo ezimbili eziyinhloko zokususa i-mercury: indlela ye-hgsiv molecular sieve adsorption yenkampani ye-UOP e-United States kanye nekhabhoni ecushwe isibabule efakwe isibabule ukuze yenze i-mercury isabelane nesibabule ukuze ikhiqize i-mercury sulfide futhi iyikhangise kukhabhoni ecushiwe. Eyangaphambili inezindleko eziphakeme futhi ifanele izikhathi ezinokuqukethwe okuphezulu kwe-mercury; Eyakamuva inezindleko eziphansi zokusebenza futhi ifanele izikhathi ezinokuqukethwe kwe-mercury ephansi.
Ngakolunye uhlangothi, izindleko zokusebenza ze-hgsiv molecular sieve ziphezulu kakhulu; Ngakolunye uhlangothi, okuqukethwe kwe-mercury kugesi yokuphakelayo yeyunithi kuphansi kakhulu. Ngakho-ke, inkampani inolwazi oluyimpumelelo ekusebenziseni ikhabhoni ecushwe isibabule efakwe isibabule ukuze kususwe i-mercury.
Xhumana nathi:
I-Sichuan Rongteng Automation Equipment Co., Ltd.
www. rtgastreat.com
I-imeyili:sales01@rtgastreat.com
Ucingo/whatsapp: +86 138 8076 0589
Ikheli: No. 8, Isigaba 2 somgwaqo uTengfei, Isifunda esincane saseShigao,
Indawo Entsha yaseTianfu, idolobha laseMeishan, iSichuan China 620564
No. 8, Isigaba 2 somgwaqo uTengfei, IsiFunda esincane saseShigao,
Isikhathi sokuthumela: Dec-26-2022
