Kev sib piv thiab kev xaiv txog kev siv tshuab
Cov txheej txheem ntawm kev ua kom cov roj av ua kua feem ntau suav nrog kev kho ua ntej rau cov roj pub (kev ntxuav), kev ua kua, kev nias lub voj voog txias, kev khaws cia cov khoom, kev thauj khoom thiab cov txheej txheem pabcuam. Cov txheej txheem tseem ceeb suav nrog kev ntxuav cov roj pub thiab kev ua kom cov roj huv.
Kev xaiv cov txheej txheem ntxuav roj av
Cov roj av ua cov roj pub yuav tsum tau ntxuav kom huv si ua ntej ua kua. Uas yog, tshem tawm cov roj kua qaub, dej thiab cov khoom tsis huv hauv cov roj pub, xws li H2S, CO2, H2O, Hg thiab cov hydrocarbons uas muaj ntxhiab, kom tiv thaiv lawv kom tsis txhob khov ntawm qhov kub qis thiab thaiv thiab ua rau cov khoom siv thiab cov kav dej puas.
Ib) Rooj 1-1 teev cov qauv kev kho ua ntej ntawm cov roj pub hauv LNG cog thiab cov ntsiab lus siab tshaj plaws ntawm cov khoom tsis huv.
Rooj 1-1 qhov siab tshaj plaws uas tso cai rau cov pa roj LNG pub
| Kev tsis huv | Kev txwv ntawm cov ntsiab lus | Lub hauv paus |
| H2TUS | A (nws raug tso cai kom dhau qhov txwv kev yaj yam tsis txwv kev tsim khoom) | |
| CO2 | 50 ~ 100ppmV | B (Qhov kawg yaj tau) |
| H2S | C (cov kev cai ntawm cov khoom) | |
| Tag nrho cov ntsiab lus sulfur | 10 ~ 50mg / Nm3 | C |
| Hg |
| Ib |
| Cov roj hydrocarbon uas muaj ntxhiab tsw qab | ≤10ppmV | A los yog B |
| Tag nrho cov hydrocarbons naphthenic | ≤10ppmV | A los yog B |
Los ntawm cov ntaub ntawv ntawm cov roj pub, cov ntsiab lus ntawm cov pa roj carbon dioxide hauv cov roj pub tshaj qhov tus qauv thiab yuav tsum tau ntxuav.
Cov txheej txheem kua amine MDEA yog cov txheej txheem tsim nyog tshaj plaws hauv kev siv hluav taws xob, qhov ntsuas kev kho mob thiab kev nqis peev thiab cov nqi ua haujlwm. Yog li ntawd, cov txheej txheem kua amine MDEA raug xaiv rau cov roj deacidification hauv txoj kev npaj no.
B) Kev xaiv cov txheej txheem dehydration
Qhov muaj dej nyob rau hauv cov roj av feem ntau ua rau muaj kev rau txim loj: nyob rau hauv qee qhov xwm txheej, dej thiab cov roj av tsim cov hydrate los thaiv cov kav dej thiab cuam tshuam rau cov txheej txheem txias liquefaction; Tsis tas li ntawd, qhov muaj dej kuj tseem yuav ua rau kev siv hluav taws xob tsis tsim nyog; Vim yog qhov kub qis ntawm cov roj av thiab qhov muaj dej, cov khoom siv yuav khov thiab thaiv, yog li nws yuav tsum tau qhuav.
Cov txheej txheem ua kom qhuav roj av Feem ntau muaj peb pawg: qhov kub qis dehydration, khoom desiccant adsorption thiab cov kuab tshuaj absorption. Kev sib cais khov feem ntau yog siv los zam hydrate thaum qhov kub ntawm cov roj ntuj qis. Txawm li cas los xij, qhov kub qis uas nws tso cai yog txwv thiab tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov roj ntuj liquefaction; Kev nqus cov kuab tshuaj feem ntau suav nrog cov kua qaub concentrated (feem ntau yog cov kua qaub organic xws li cov kua qaub phosphoric concentrated), glycol (feem ntau siv triethylene glycol), thiab lwm yam, tab sis cov txheej txheem no muaj qhov tob dehydration qis thiab tsis tuaj yeem siv rau hauv cov chav cryogenic; Cov txheej txheem dehydration feem ntau ntawm cov khoom desiccant yog silica gel txoj kev, txoj kev siv molecular sieve los yog kev sib xyaw ua ke ntawm ob txoj kev.
Yuav tsum tau siv txoj kev adsorption khoom khov kho rau kev ua kom cov roj av liquefaction dehydrationVim tias molecular sieve muaj qhov zoo ntawm kev xaiv adsorption muaj zog, cov yam ntxwv adsorption siab nyob rau hauv cov dej tsawg vapor ib feem siab thiab tshem tawm ntxiv cov roj acid seem, 4A molecular sieve yog siv los ua dehydration adsorbent hauv qhov kev thov no.
C) Kev xaiv cov txheej txheem tshem tawm mercury
Tam sim no, muaj ob txoj kev tshem tawm mercury tseem ceeb: txoj kev adsorption molecular sieve hgsiv ntawm UOP lub tuam txhab hauv Tebchaws Meskas thiab sulfur impregnated activated carbon kom ua rau mercury teb nrog sulfur los tsim mercury sulfide thiab nqus nws rau ntawm activated carbon. Tus thawj muaj tus nqi siab thiab tsim nyog rau cov xwm txheej uas muaj cov mercury ntau; Tus tom kawg muaj tus nqi ua haujlwm qis thiab tsim nyog rau cov xwm txheej uas muaj cov mercury tsawg.
Ntawm ib sab tes, tus nqi khiav lag luam ntawm hgsiv molecular sieve siab heev; Ntawm qhov tod tes, cov ntsiab lus mercury hauv cov roj pub ntawm lub tshuab yog qis heev. Yog li ntawd, lub tuam txhab muaj kev paub dhau los hauv kev siv sulfur impregnated activated carbon rau kev tshem tawm mercury.
Tiv tauj peb:
Sichuan Hengzhong Automation Khoom Co., Ltd.
www.rtgastreat.com
Email: sales01@rtgastreat.com
Xov tooj/whatsapp: +86 138 8076 0589
Chaw Nyob: No. 8, Seem 2 ntawm Tengfei Road, Shigao Subdistrict,
Tianfu Tshiab Cheeb Tsam, Meishan City, Sichuan, Suav teb 620564
Tsis muaj. 8, Ntu 2 ntawm Tengfei Txoj Kev, Shigao Subdistrict,
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-26-2022