Ib qho LNG ua kev cog yog tsob nroj uas purifies thiab txias ntuj roj rau ib ncig ntawm -162℃thiab noo noo, thiab tsim tawm liquefied nkev (lng). Cov khoom muaj cov yam ntxwv ntawm Calorific tus nqi siab, chaw muaj kuab paug tsis txaus, thiab kev thauj mus los, muab cov roj muaj roj thiab txuag hluav taws xob.
Cov ncauj lus kom ntxaws nrog cov txheej txheem ntawm tag nrho cov txheej txheem ntawm cov pa roj ntuj liquefaction
Pretreatment theem
Kev ua ntej lim
Tshem tawm cov tshuab hluav taws xob xws li hmoov av, dej, condensate, thiab lwm yam los ntawm nkev
Siv Lim Argators, Lub ntiajteb txawj nqus cais tawm thiab lwm yam khoom siv kom ua tiav kev sib cais ua ntej
Tshem tawm ntawm corrosive impurities
Tshem tawm ntawm hydrogen sulfide (h₂s): los ntawm amine ntxuav cov txheej txheem (xws li meye, DEA daws) lossis DREA DESULFURNION Tus neeg sawv cev adsorption.
Tshem tawm cov Mercury (HG): Siv zinc sulfide adsorbent lossis ua kom cov roj carbon adsorption los tiv thaiv kev txhim kho corrosion thiab khov ntawm kev hloov cua sov.
Acid roj tshem tawm thiab lub cev qhuav dej
Acid Rauv Tshem Tawm
Tshem tawm cov pa roj carbon dioxide (CO₂): Tshuaj tsis haum los ntawm cov amine absorber (xws li methylldiethanolline MDEA)
Tswj cov ntsiab lus co₂ tsawg dua los yog sib npaug rau 50ppm kom tsis txhob qhuav cov dej khov lub raj xa hluav taws xob thaum liquefaction
Lub cev qhuav dej kho mob
Siv adsorbent (molecular sab cib, silica gel) lossis Triethylene Glycol (Teg) kev nqus txoj kev tshem tawm kom tshem tawm ya raws
Tswj cov ncauj lus dej tsawg dua los yog sib npaug rau 1ppm los tiv thaiv cov khoom siv dej khov rau lub sijhawm liquefaction
Hnyav HydroCarbon Cabation
Fractation Txheej Txheem
Cov nkev muaj feem ntau dhau los ntawm ib tug distillation ntauwd los cais pentane thiab hnyav hydrocarbons (c 5+)
Cov roj ntau heev hydrocarbons tuaj yeem rov qab los ntawm cov khoom kom tsis txhob muaj kev tsim ntawm hydrocarbon muaju thaum lub liquefaction
Liquefaction theem
Kev Kho Mob Ua Ntej
Siv cov khoom lag luam lossis ammonia lub voj voog kom ntev mus rau kev ua kom muaj roj txias
Sib sib zog nqus tub yees liquefaction
Siv cov khoom xyaw ua tub yees (n₂, c₁-c₅ hydrocarbon sib xyaw) tub yees
Txias rau liquefaction taw tes (-162 degree, -260 ℉), lub ntim ntawm cov nkev roj yog txo rau 1/600 ntawm cov thawj ntim
Liquefied nkev (lng) cia
Khw lng hauv ob-walled rwb thaiv tsev tso tsheb hlau luam lossis ua npuas dej iav rwb thaiv tsev) kom tswj hwm qhov kub tsawg dua lossis sib npaug ntawm cov qib qis
Cia thiab Tsheb Thauj Mus Los
Onshore cia
Siv cov tso tsheb hlau luam loj insululated cia (peev xwm tuaj yeem ncav cuag 100,000-200,000 lo lus sau meters) rau luv luv luv
Marine tsheb thauj mus los
Siv Kev Thauj Mus Los Ntawm Thauj Nkoj (Nruab Nrog Tsawg-Kub Tiv Thaiv Cov Hluav Taws Xob Hluav Taws Xob Los Yog C-Hom Indassent cia khoom Tank)
Kev thauj mus los thauj tau cov ntsuas kub yog tswj hwm ntawm -162℃thiab lub siab yog ze rau kev ua kom zoo
Regasification Theem
LNG GASICATION
Thaum tau txais lub davhlau ya nyob twg, LNG yog rhuab mus rau gaseous lub xeev los ntawm dej hiav txwv ua kom sov thiab cua kub vaporizer (orv)
Cov pa roj muaj roj muaj ntau dua los yog sib npaug rau 5 degree, uas ua tau raws li kev thauj mus los ntawm kev thauj hluav taws xob
Pipeline Kev Thauj Sib Tw
Thauj mus rau hauv nroog muaj roj network lossis cov neeg siv khoom lag luam los ntawm cov roj hluav taws xob siab siab
Cim npe nrov: LNG txheej txheem cog, Tuam Tshoj LNG txheej cog cov chaw tsim tshuaj paus, cov chaw muag khoom
