High Quality China LNG Plant Opanga - Makonda 50×104m3 / D gasi liquefaction chomera - Rongteng

Mawu Oyamba

Ntchito yomanga 50 × 10⁴m³/ D pulojekiti yowonongeka kwa gasi ndi malo othandizira ndi thanki imodzi ya 10000 m3 LNG. Njira zazikuluzikulu zogwirira ntchito zimaphatikizapo kuponderezedwa kwa gasi, decarbonization unit, dehydration unit, mercury ndi heavy hydrocarbon remover unit, liquefaction unit, refrigerant storage, flash steam pressurization, LNG tank famu ndi malo osungiramo katundu.

Kodi mankhwala a gasi asanayambe kuthira madzi amadzimadzi amagwira ntchito bwanji?

Chitsime cha chakudya cha zomera chimabwera mu mawonekedwe a mpweya ndi chitoliro. Gasi wachilengedwe wotengedwa pansi amakhala ndi zonyansa, madzi ndi madzi ena ogwirizana, kotero kuti liquefaction isanayambe, mpweya uyenera kudutsa njira yochizira kuchotsa zinthu zosafunikira. Mpweyawu umadutsa muzotengera zingapo, ma compressor ndi mapaipi pomwe mpweya umasiyanitsidwa ndi madzi olemera ndi zonyansa.

Choyamba, madzi ndi condensate amachotsedwa, kenakokuchotsa asidi asidi(carbon dioxide, CO2), hydrogen sulfide (H2S) ndi mercury (Hg). Zinthuzi ndizosafunika, chifukwa zimatha kuyambitsa madzi oundana panthawi ya liquefaction ndi dzimbiri m'mapaipi ndi zosinthira kutentha kwa LNG. Kusakaniza kotsalako kumasungunuka kale, ndipo zina, zolemera kwambiri, zamadzimadzi za gasi zachilengedwe zimasiyanitsidwa ndi kusakaniza kusanachitike. Ma hydrocarbon ochotsedwa amatha kusungidwa ndikugulitsidwa padera. Mpweya wotsalawo nthawi zambiri umakhala ndi methane ndi ethane, yomwe imalowetsedwa.

Kodi LNG liquefaction imagwira ntchito bwanji?

Kunyamula gasi woponderezedwa mtunda wautali ndi chitoliro kumatha kukhala kokwera mtengo komanso kuwononga nthawi, koma pozizira gasi wachilengedwe kufika -162 ° C, amasanduka zinthu zamadzimadzi, ndipo kuchuluka kwake kumachepa ndi nthawi 600. Izi zimapangitsa kuti zitheke kunyamula gasi pa sitima yapamadzi, ndipo izi zimatheka pafakitale ya LNG. The liquefaction ndi LNG kuzirala ndondomeko zimachokera thermodynamic firiji mkombero, ndipo zimachitika cryogenic kutentha exchanger, amene amatenga kutentha kwa gasi. Gasi wa Flash ndi BOG atha kugwiritsidwa ntchito ngati mafuta opangira ma turbines omwe amagwiritsidwa ntchito popangira magetsi pamalopo.

Timalekanitsa makamaka pakati pa mitundu iwiri ikuluikulu ya njira zothira madzi: njira yachikale ya cascade pomwe mafiriji osiyanasiyana omwe amawuka pa kutentha kosiyana amagwiritsidwa ntchito, ndi kuzungulira kwa refrigerant komwe kusakanikirana kosalekeza, kumodzi kwa refrigerants kumazirala. Mulimonsemo, chomaliza ndi LNG, chomwe chimasungidwa muakasinja a cryogenic pamalopo asanatumizidwe.