Ntụnyere teknụzụ na nhọrọ
Usoro nke mmiri gas sitere n'okike isi ihe dị na ya bụ ọgwụgwọ tupu e jiri gas mee ihe (nhicha), ịgbaze mmiri, mkpakọ okirikiri refrigerant, nchekwa ngwaahịa, ibu na sistemụ enyemaka. Isi usoro nhazi gụnyere ịsacha gas nri na ịgbaze mmiri gas dị ọcha.
Nhọrọ nke usoro nhicha gas sitere n'okike
A ga-asacha gas sitere n'okike nke ọma tupu e tinye ya n'ime mmiri. Ya bụ, wepụ gas asịd, mmiri na ihe ndị na-adịghị ọcha dị na gas nri, dịka H2S, CO2, H2O, Hg na hydrocarbons aromatic, ka ha ghara ịfụ oyi n'okpomọkụ dị ala ma gbochie ma mebie akụrụngwa na paịpụ.
A) Tebụl 3.1-1 depụtara ụkpụrụ tupu ọgwụgwọ nke gas nri na ụlọ ọrụ LNG na oke ọdịnaya nke ihe na-adịghị ọcha.
| adịghị ọcha | Oke ọdịnaya | Ntọala |
| H2IHE | ＜1ppmV | A (a na-ekwe ka ọ gafere oke mgbasa na-enweghị igbochi mmepụta) |
| Kọlọ2 | 50～100ppmV | B (Ngwakọta kachasị mma) |
| H2S | ≥4ppmV | C (ihe achọrọ maka teknụzụ ngwaahịa) |
| Mkpokọta ọdịnaya sọlfọ | 10~50mg/Nm3 | C |
| Hg |
| A |
| Hydrocarbon na-esi ísì ụtọ | ≤10ppmV | A ma ọ bụ B |
| Mkpokọta hydrocarbons naphthenic | ≤10ppmV | A ma ọ bụ B |
Site na data nke gas nri, ọdịnaya nke carbon dioxide dị na gas nri gafere ọkọlọtọ ma a ghaghị ịsacha ya.
Usoro mmiri mmiri MDEA amine bụ usoro kachasị mma n'ihe gbasara oriri ike, nha ọgwụgwọ na itinye ego na ọnụ ahịa ọrụ. Ya mere, a na-ahọrọ usoro mmiri mmiri MDEA amine maka gas deacidification na atụmatụ a.
B) Usoro mmiri ịkpọ nkụ nhọrọ
Mmiri dị n'ime gas eke na-ebutekarị nnukwu nsogbu: n'ọnọdụ ụfọdụ, mmiri na gas eke na-emepụta mmiri mmiri iji gbochie ọkpọkọ mmiri ma metụta usoro mmiri oyi; Na mgbakwunye, ịdị adị nke mmiri ga-akpatakwa oriri ike na-enweghị isi; N'ihi obere okpomọkụ mmiri mmiri nke gas eke na ịdị adị nke mmiri, akụrụngwa ahụ ga-akpọnwụ ma gbochie ya, yabụ a ga-akpọnwụ ya.
Usoro mmịpụta mmiri gas sitere n'okike Ọ na-agụnyekarị ụdị atọ: obere okpomọkụ ịkpọ nkụ, mmiri siri ike ịkpọ nkụ na mmiri mmiri. A na-ejikarị nkewa oyi eme ihe iji zere mmiri mmiri mgbe okpomọkụ nke gas eke dị ala. Agbanyeghị, obere okpomọkụ ọ na-ekwe ka ọ dị oke ma ọ nweghị ike imezu ihe achọrọ maka mmiri mmiri gas eke; Mmiri mmiri mmiri na-agụnyekarị acid concentrated (na-abụkarị acid organic dị ka phosphoric acid concentrated), glycol (triethylene glycol a na-ejikarị eme ihe), wdg, mana usoro ndị a nwere obere omimi nkụ mmiri ma enweghị ike iji ya na nkeji cryogenic; Ụzọ ndị a na-ejikarị akpọ nkụ mmiri nke ihe mmiri mmiri siri ike bụ usoro silica gel, usoro sieve molecular ma ọ bụ njikọta nke ụzọ abụọ ahụ.
A ga-eji usoro adsorption siri ike mee ihe maka mmiri gas sitere n'okike. Ebe ọ bụ na sieve molekul nwere uru nke nhọrọ adsorption siri ike, njirimara adsorption dị elu n'okpuru obere nrụgide akụkụ nke mmiri na iwepụ gas acid fọdụrụnụ, a na-eji sieve molekul 4A dị ka adsorbent dehydration na atụmatụ a.
C) Nhọrọ nke usoro mwepụ mercury
Ugbu a, e nwere ụzọ abụọ isi wepụ mercury: usoro hgsiv molecular sieve adsorption nke ụlọ ọrụ UOP na United States na sọlfọ a na-etinye carbon arụ ọrụ iji mee ka mercury meghachi omume na sọlfọ iji mepụta mercury sulfide ma tinye ya na carbon arụ ọrụ. Nke mbụ nwere ọnụ ahịa dị elu ma dabara adaba maka oge nwere nnukwu ọdịnaya mercury; nke ikpeazụ nwere obere ọnụ ahịa ọrụ ma dabara adaba maka oge nwere obere ọdịnaya mercury.
N'otu aka, ọnụ ahịa ọrụ nke hgsiv molecular sieve dị oke elu; N'aka nke ọzọ, ọdịnaya mercury dị na gas nri nke unit ahụ dị obere. Ya mere, ụlọ ọrụ ahụ nwere ahụmịhe na-aga nke ọma n'iji carbon e tinyere na sulfur maka iwepụ mercury.
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Adreesị: Nkebi nke 8, Nkebi nke 2 nke Ụzọ Tengfei, Mpaghara Shigao, Mpaghara Ọhụrụ Tianfu, obodo Meishan, Sichuan China 62056
Oge ozi: Sep-11-2022