1  Chidule cha Dongosolo

Mpweya wothira mafuta umalowa mu dongosolo lokonzekera mpweya wachilengedwe ukatha kusefedwa, kulekanitsidwa, kulamulidwa ndi kukakamizidwa ndi kuyezedwa. Mukachotsa CO2, mpweyawo umalowa mu dongosolo lokonzekera mpweya wachilengedwe ukatha kusefedwa, kulekanitsidwa, kulamulidwa ndi kukakamizidwa.₂, H₂O, ma hydrocarbon olemera ndi Hg, imalowa mu bokosi lozizira la liquefaction, ndipo imaziziritsidwa, kusungunuka, kuzizira pang'ono ndikuyikidwa mu chosinthira kutentha cha plate-fin. Kenako imalowa mu thanki yosungira LNG ngati chinthu cha LNG.

Njira zazikulu zaukadaulo za chipangizochi ndi izi:

• Gwiritsani ntchito MDEA kuchotsa carbon dioxide;

• Masefa a molekyulu amagwiritsidwa ntchito kuchotsa madzir
• Gwiritsani ntchito mpweya wopangidwa kuti muchotse ma hydrocarbon olemera;

• Gwiritsani ntchito mpweya wopangidwa ndi sulfure kuti muchotse mercury;

• Gwiritsani ntchito zinthu zolondola zosefera kuti musefe sieve ya molecular ndi fumbi la carbon logwiritsidwa ntchito;

• Mpweya wachilengedwe wonse woyeretsedwa umasungunuka ndi njira ya MRC (mixed refrigerant) yozungulira yoziziritsira;

  Dongosolo la ndondomekoyi limaphatikizapo:

• Kusefa ndi kulekanitsa mpweya wodyetsa chakudya, malamulo oyendetsera kuthamanga kwa mpweya ndi makina oyezera;

• Njira yochizira isanakwane (kuphatikizapo kuchotsa mpweya woipa m'thupi, kutaya madzi m'thupi, kuchotsa mafuta ambiri m'thupi, kuchotsa mercury, ndi kuchotsa fumbi);

• Dongosolo lowerengera kuchuluka kwa MR ndi dongosolo la kuzungulira kwa MR;

• dongosolo la LNG lothira madzi;

• Dongosolo lobwezeretsanso la BOG

2   Kufotokozera kwa dongosolo lililonse

2.1      Kupatukana kwa kusefera mpweya ndi gawo lowongolera kuthamanga kwa mpweya

1) Kufotokozera njira

Mpweya wothira mafuta wochokera kumtunda umayendetsedwa ndi mphamvu kenako umalowa mu feed gas inlet filter separator, kenako umalowa mu downstream system pambuyo poti wapanikizika, walekanitsidwa ndikuyesedwa.

Zipangizo zake zazikulu zoyendetsera ntchito ndi separator ya feed gas filter, flow meter, compressor ndi zina zotero.

2) Magawo a kapangidwe

Kutha kugwiritsa ntchito: 10 × 10 ⁴ Nm ³ /tsiku

Kusintha kwa mitundu: 50% ~ 110%

Kupanikizika kwa compressor outlet: 5. 2Mpa.g

2.2      Chipangizo chochepetsera asidi m'mpweya wodyetsa

1) Kufotokozera njira

Mpweya wothira kuchokera kumtunda umalowa mu unit deacidification, ndipo unit iyi imagwiritsa ntchito njira ya MDEA yothetsera kuchotsa mpweya wa asidi monga CO2₂ ndi H₂S mu mpweya wodyetsa.

Mpweya wachilengedwe umalowa kuchokera pansi pa nsanja yoyamwitsa ndipo umadutsa mu nsanja yoyamwitsa kuchokera pansi kupita pamwamba; yankho la MDEA lokonzedwanso mokwanira (madzimadzi osalimba) limalowa kuchokera pamwamba pa nsanja yoyamwitsa, limadutsa mu nsanja yoyamwitsa kuchokera pamwamba kupita pansi, ndipo yankho la MDEA ndi mpweya wachilengedwe womwe ukuyenda mosiyana uli mu nsanja yoyamwitsa.₂ mu mpweya _ndi Zimalowa mu gawo lamadzimadzi, ndipo zinthu zosayamwa zimatengedwa kuchokera pamwamba pa nsanja yoyamwa ndikulowa mu choziziritsira ndi cholekanitsa mpweya chochotsedwa kabotolo. Mpweya wotuluka mu cholekanitsa mpweya chochotsedwa kabotolo umalowa mu unit yochotsera mercury gas feed, ndipo condensate imapita ku thanki ya flash.

CO₂ Zomwe zili mu mankhwala achilengedwe ndi zosakwana 50ppmv.

MEDA yotengedwa ndi CO2₂ Amatchedwa madzi olemera, ndipo amatumizidwa ku flash tower, ndipo mpweya wachilengedwe womwe umatuluka pansi pa kupsinjika umatumizidwa ku dongosolo la mafuta. Pambuyo pa kunyezimira, madzi olemerawo amasinthanitsa kutentha ndi yankho (madzi ofooka) lomwe limayenda kuchokera pansi pa nsanja yokonzanso, kenako kutentha kumakwezedwa kufika pa ~98 °C kupita ku gawo lapamwamba la nsanja yokonzanso.

Madzi osalimba ochokera ku nsanja yokonzanso zinthu amadutsa mu chosinthira kutentha chamadzimadzi cholemera kwambiri ndi choziziritsira madzi chosalimba, madzi osalimba amaziziritsidwa kufika pa ~40 ℃, ndipo atakakamizidwa ndi pampu yamadzimadzi osalimba, amalowa kuchokera kumtunda kwa nsanja yoyamwitsa.

Mpweya womwe uli pamwamba pa nsanja yokonzanso umadutsa mu choziziritsira mpweya wa asidi ndikulowa mu cholekanitsa mpweya wa asidi. Mpweya wochokera ku cholekanitsa mpweya wa asidi umatumizidwa ku dongosolo lotulutsa mpweya wa asidi, ndipo condensate imakakamizidwa ndi mpope wobwezeretsa kenako imatumizidwa ku cholekanitsa cha flash.

Gwero la kutentha la reboiler ya nsanja yokonzanso limatenthedwa ndi mafuta osamutsa kutentha.

Zipangizo zazikulu zogwirira ntchito za chipangizochi ndi nsanja yoyamwitsa ndi nsanja yokonzanso.

2) Magawo a kapangidwe

Kutha kugwiritsa ntchito: 10 × 10 ⁴ Nm ³ /tsiku

Mpweya wodyetsa CO₂ mfundo yopangira: 3%

Kuthamanga kwa nsanja yoyamwa: 5Mpa.G

Kutentha kwa nsanja yoyamwitsa: 40 ℃ ~ 60 ℃

Nsanja yokonzanso: 0.03 Mpa.G~0.05 Mpa.G

Kutentha kwa ntchito ya nsanja yokonzanso: 95 ℃ ~ 120 ℃

Kutentha kosinthika: Kutentha kwa mafuta osinthira kutentha

CO₂ mpweya mu mpweya wochotsedwa mu kabati ndi ≤50ppm

Lumikizanani nafe:

Sichuan Hengzhong Automation Equipment Co., Ltd.

www.rtgastreat.com

Imelo: sales01@rtgastreat.com

Foni/whatsapp: +86 138 8076 0589