Iskar gas ta halitta

Bayani

Iskar gas mai fitar da iskar gas, wacce aka fi sani da LNG, tana mayar da iskar gas mai narkewa zuwa ruwa ta hanyar sanyaya iskar gas mai fitar da iskar gas a ƙarƙashin matsin lamba na yau da kullun zuwa - 162 ℃. Ruwan iskar gas na halitta na iya adana sararin ajiya da jigilar kaya sosai, kuma yana da fa'idodin babban ƙimar kalori, babban aiki, mai dacewa da daidaiton daidaita nauyin birane, mai taimakawa wajen kare muhalli, rage gurɓataccen birni da sauransu.

Liquefaction shine ginshiƙin samar da LNG. A halin yanzu, hanyoyin samar da iskar gas mai girma sun haɗa da tsarin liquefaction cascade, tsarin liquefaction gauraye da kuma tsarin liquefaction tare da expander.

Tsarin shaye-shayen iskar gas ta Cascade yana amfani da ma'aunin tafasa daban-daban na refrigerant a ƙarƙashin matsin lamba na yau da kullun don rage zafin sanyaya mataki-mataki don cimma manufar shaye-shayen iskar gas ta halitta.

Tsarin sake sanyaya iska (MRC) tsari ne da ake amfani da shi wajen haɗa na'urorin sanyaya iska masu gauraye da yawa, kamar C1 ~ C5 Hydrocarbons da N2, a matsayin ruwan da ke aiki don tarawa, ƙafewa da faɗaɗa matakai-mataki don samun ƙarfin sanyaya iska a matakan zafin jiki daban-daban, sannan a hankali a sanyaya iskar gas ta halitta. Tsarin sake sanyaya iskar gas mai gauraye yana raba zuwa nau'ikan zagayowar sanyaya iska daban-daban.

Tsarin liquefaction tare da expander yana nufin tsarin liquefaction na iskar gas ta hanyar amfani da refrigerant mai matsin lamba don cimma refrigeration na Claude cycle tare da fadada turbo expander.

Tsarin aikin ya ƙunshi: na'urar daidaita matsin lamba na iskar gas da kuma aunawa, na'urar tsarkake iskar gas da kuma na'urar fitar da iskar gas, tsarin adanawa na firiji, tsarin matsewa na refrigerant, na'urar adanawa da kuma lodin kaya ta LNG.

Iskar gas da ke shiga tashar ta fara wucewa ta sashin daidaita matsin lamba da aunawa, wanda ke tabbatar da daidaita matsin lamba da auna iskar gas mai shigowa; Iskar gas ta shiga sashin tsarkake iskar gas, inda iskar gas ta kasance tana fuskantar cire CO2, cire H2S da maganin bushewar ruwa. Ana ba da shawarar tsarin MDEA don cire carbon da cire H2S, tsarin bushewar sieve na kwayoyin halitta tare da tsarin bushewar ruwa na TEG mai hawa uku. Kuma ana ba da shawarar amfani da BOG da aka dawo da shi da kuma wanda aka matse don iskar gas mai sabuntawa;

Ana ba da shawarar iskar gas mai tsafta a cikin sashin ruwan gas na halitta, mai sanyaya iska (tsarin ruwan MRC) don ruwan gas na halitta; ana adana LNG mai sanyaya iska a cikin tankin ajiya, kuma ana ba da shawarar tsarin ajiya na yanayi da ƙarancin zafin jiki don ajiyar LNG. Tankin ajiya ɗaya mai ƙarancin zafin yanayi yana da na'urar kwampreso ta BG, kuma ana amfani da na'urar kwampreso ta BOG don matsa BOG kafin shiga cikin na'urar busar da sieve ta ƙwayoyin halitta. Sabuntawa, ya danganta da famfon cryogenic don cimma shigarwa.

Sigogi na fasaha

1 Ƙarfin samarwa 90×104 m3/rana
Tanki 2 10000 m3