High Quality China Small Scale Liquefied Natural Gas Factory - Musamman 2 ~ 10×104m3 / D iskar gas liquefaction shuka - Rongteng

Gabatarwa

Gina aikin 50 × 10⁴m³/ D aikin samar da iskar gas da kayan tallafi da tanki mai cikakken 10000 m3 LNG. Babban raka'o'in aiwatarwa sun haɗa da matsi na iskar gas, na'urar kashe kuzari, rukunin bushewa, mercury da naúrar cirewar hydrocarbon mai nauyi, rukunin ruwa, ajiyar firiji, matsi mai walƙiya, filayen tanki na LNG da wuraren lodi.

Yaya pre-liquefaction maganin iskar gas ke aiki?

Ruwan rijiyar ciyarwar shuka yana zuwa a sigar gas ta bututu. Iskar iskar gas da ake hakowa daga kasa tana dauke da datti, ruwa da sauran abubuwan da ke hade da su, don haka kafin a samu ruwa, iskar ta bukaci a bi ta hanyar kula da abubuwan da ba a so. Gas yana bi ta cikin jerin tasoshin ruwa, damfara da bututu inda aka ware iskar gas a mataki na gaba da ruwa mai nauyi da datti.

Da farko, ana cire ruwa da condensate, sannan a biyo bayakawar da acid gas(carbon dioxide, CO2), hydrogen sulfide (H2S) da mercury (Hg). Wadannan abubuwan ba a so, saboda suna iya haifar da ƙanƙara a yayin da ake yin ruwa da lalata a cikin bututun da masu musayar zafi na LNG. Sauran abin da ya rage an sanyaya shi, sannan a raba sauran, mafi nauyi, ruwan iskar gas daga gaurayawan kafin a yi ruwa. Ana iya adana abubuwan da aka cire na hydrocarbons kuma a sayar da su daban. Ragowar iskar gas galibi ya ƙunshi methane da wasu ethane, wanda ake kawo ruwa.

Ta yaya liquefaction na LNG ke aiki?

Yin jigilar iskar gas mai nisa mai nisa da bututu na iya yin tsada kuma yana ɗaukar lokaci, amma ta hanyar sanyaya iskar gas zuwa -162°C, ya zama ruwan ruwa, ƙarar sa yana raguwa da sau 600. Wannan yana ba da damar jigilar iskar gas ta jirgin ruwa, kuma ana yin wannan tsari a tashar LNG. A liquefaction da LNG tsarin sanyaya sun dogara ne a kan thermodynamic refrigeration hawan keke, kuma yana faruwa a cryogenic zafi Exchanges, wanda shafe zafi daga halitta gas. Ana iya amfani da gas mai walƙiya da BOG azaman mai don injin turbin da ake amfani da shi don samar da wutar lantarki.

Mun bambanta tsakanin manyan nau'ikan hanyoyin ruwa guda biyu: tsarin cascade na gargajiya inda ake amfani da refrigerants daban-daban waɗanda suke yin vaporize a yanayin zafi daban-daban, da kuma gaurayawan sake zagayowar refrigerant inda ake sanyaya ci gaba, gauraya guda ɗaya na refrigerants. Ko ta yaya, samfurin ƙarshe shine LNG, wanda aka adana a cikin tankuna na cryogenic akan wurin kafin a tura shi.