Kugereranya no guhitamo tekiniki
Inzira yo gushonga kw'imyuka karemano Muri make harimo gutunganya imyuka ikoreshwa mu kugaburira (gusukura), gukoresha amazi akoreshwa mu kunywesha, gukoresha ibyuma bikonjesha, kubika ibicuruzwa, gushyiramo ibikoresho no kubifasha mu kubyinjiza. Uburyo nyamukuru bwo gukora bukubiyemo gutunganya imyuka ikoreshwa mu kunywesha no gukoresha amazi akoreshwa mu kunywesha imyuka ikoreshwa mu kunywesha imyuka.
Guhitamo uburyo bwo gusukura gazi karemano
Gazi karemano nk'umwuka ukoreshwa mu kugaburira imyuka igomba gusukurwa neza mbere yo kuyikoresha mu kuyungurura. Ni ukuvuga gukuraho umwuka urimo aside, amazi n'imyanda iri mu mwuka ukoreshwa mu kugaburira imyuka, nka H2S, CO2, H2O, Hg na hydrocarbons zihumura neza, kugira ngo hirindwe ko zikonjesha ku bushyuhe buke no kuziba no kwangiza ibikoresho n'imiyoboro.
A) Imbonerahamwe ya 3.1-1 igaragaza ibipimo ngenderwaho by’imyuka ikoreshwa mu gutunganya imyanda mu nganda za LNG n’ingano ntarengwa y’imyanda.
| Umwanda | Umupaka w'ibirimo | Ishingiro |
| H2IKI | 1ppmV | A (byemewe kurenza urugero rw'isesa nta mbogamizi ku musaruro) |
| CO2 | 50～100ppmV | B (Gushonga kwa nyuma) |
| H2S | ＜4ppmV | C (ibisabwa mu bya tekiniki by'ibicuruzwa) |
| Igiteranyo cy'ibikubiye muri sulfure | 10～50mg/Nm3 | C |
| Hg | ＜0.01μg/Nm3 | A |
| Hydrocarbon ihumura neza | ≤10ppmV | A cyangwa B |
| Hydrocarbonique zose za naphthenic | ≤10ppmV | A cyangwa B |
Ukurikije amakuru ajyanye n'imyuka ikomoka ku biryo, ingano ya dioxyde de carbone iri mu biryo irenze urugero kandi igomba gutunganywa.
Uburyo bwo gukoresha amazi ya MDEA amine ni bwo buryo bukwiye cyane mu bijyanye n'ikoreshwa ry'ingufu, ingano y'uburyo bwo kuyitunganya ndetse n'ishoramari n'ikiguzi cyo kuyikoresha. Kubwibyo, uburyo bwo gukoresha amazi ya MDEA amine butoranywa mu rwego rwo gukuraho aside muri iyi gahunda.
B) Uburyo bwo kubura amazi mu mubiri guhitamo
Kuba hari amazi muri gaze karemano akenshi bitera ingaruka zikomeye: mu bihe bimwe na bimwe, amazi na gaze karemano bikora hydrate kugira ngo bizibe umuyoboro kandi bigira ingaruka ku buryo bwo gukonjesha amazi; Byongeye kandi, kuba hari amazi bizanatera ikoreshwa ry'amashanyarazi ritari ngombwa; Bitewe n'ubushyuhe buke bwa gaze karemano n'uko hari amazi, ibikoresho bizakonjeshwa kandi bigafungwa, bityo bigomba kubura amazi.
Uburyo bwo kubura amazi mu mwuka usanzwe Muri rusange harimo ibyiciro bitatu: Kubura amazi mu bushyuhe buke, kunyuzwa kwa desiccant ikomeye no kwinjiza solvent. Gutandukanya gukonjesha bikoreshwa cyane cyane mu kwirinda hydrate iyo ubushyuhe bwa gaze karemano buri hasi. Ariko, ubushyuhe buke bwemerera ni buke kandi ntibushobora kuzuza ibisabwa na liquefaction ya gaze karemano; Kunyuzwa kwa solvent akenshi biba birimo aside ikomeye (ubusanzwe aside organic nka aside phosphoric ikomeye), glycol (triethylene glycol ikoreshwa cyane), nibindi, ariko ubu buryo bufite ubujyakuzimu buke kandi ntibushobora gukoreshwa mu bice bya cryogenic; Uburyo busanzwe bwo kubura amazi mu desiccant ikomeye ni uburyo bwa silica gel, uburyo bwa molecular sieve cyangwa uburyo bwombi buvanze.
Uburyo bwo kunyuza umwuka mu buryo bukomeye bugomba gukoreshwa mu kunyuza umwuka mu buryo busanzwe. Kubera ko urushundura rwa molekile rufite ibyiza byo guhitamo neza uburyo runyuza umwuka mu buryo busanzwe, imiterere yarwo yo kunyuza umwuka mu buryo bwinshi mu gihe cy’umwuka muke w’amazi ndetse no gukuraho umwuka usigaye wa aside, urushundura rwa molekile rwa 4A rukoreshwa nk’urushundura rwo kunyuza umwuka mu buryo busanzwe muri ubu buryo.
C) Guhitamo uburyo bwo gukuraho mercure
Kugeza ubu, hari inzira ebyiri z'ingenzi zo gukuraho mercure: uburyo bwo gukoresha sulfure mu buryo bwa hgsiv molekile sieve bwa sosiyete ya UOP muri Leta Zunze Ubumwe za Amerika hamwe na sulfure iterwa na carbon activated kugira ngo mercure ikoreshwe na sulfure kugira ngo ikore sulfure ya mercure kandi iyinjize kuri carbon activated. Iya mbere ihenze cyane kandi ikwiriye ibihe bifite mercure nyinshi; Iya nyuma ihenze cyane kandi ikwiriye ibihe bifite mercure nke.
Ku ruhande rumwe, ikiguzi cyo gukoresha hgsiv molekile sieve kiri hejuru cyane; Ku rundi ruhande, ingano ya mercure iri mu mwuka ukoreshwa muri iyo mashini ni ntoya. Kubwibyo, iyi sosiyete ifite ubunararibonye mu gukoresha sulfure iterwa na carbon activated mu gukuraho mercure.
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Aderesi: No. 8, Igice cya 2 cy'Umuhanda wa Tengfei, Akarere ka Shigao, Agace Gashya ka Tianfu, Umujyi wa Meishan, Sichuan Ubushinwa 62056
Igihe cyo kohereza ubutumwa: 11 Nzeri 2022