.Chikamu chekuchenesa mweya inobvisa nitrogen kubva mugasi rechisikigo kugadzirira kutakurwa kwemapaipi. Sekureva kwedata reNatural Gas Research Institute, 17% yemagasi echisikigo muUnited States ane nitrogen yakawanda. Mitemo mizhinji yemapaipi inoda kuti nitrogen yakawanda mugasi rechisikigo ive pasi pe4%. Gasi rechisikigo rine nitrogen yakawanda rinongovharirwa nekuti harigone kutakurwa kuenda kumusika kuburikidza nemapaipi. Kana paine nitrogen yakawandisa mupaipi, pane njodzi yekupwanywa kwegasi kana kupiswa zvisina kunaka. Nitrogen inoderedzawo kukosha kwemafuta egasi, zvichikonzera kudzikira kweBTU nekukosha kwayo.
Nekuti nitrogen (N2) nemethane (CH4) zvine saizi dzakafanana dzemamorekuru uye ma dielectric constants akaderera, uye kushaya reactivity yakasarudzwa, senge carbon dioxide kana hydrogen sulfide mumayuniti eamine, denitrification inonetsa kupatsanurana kwehunyanzvi.
Kudzvinyirirwa kwesimba remhepo (Pressure swing adsorption - PSA), kupatsanurwa kwekupisa kushoma uye kunyudzwa kwemafuta asina mafuta zvakashandiswa kubvisa nitrogen kubva mugasi rechisikigo.
Kudzvanywa kwesimba (PSA) kunoshandisa chinhu chinokwevera mvura kuti chisanyanya kusviba paradzanisa nitrogen kubva ku methaneGasi rinozobva ragadzirwazve kubva muchinhu chinokwevera mweya kuburikidza nekusanganiswa kwekumanikidzwa nekuchinja kwekupisa. PSA inoshandiswa pakubvisa carbon dioxide, kubvisa hydrogen, kubvisa madhayirisiti uye kudzora madonhwe emvura mu hydrocarbon.
Kupatsanurwa kweCryogenic kunoshandisa cryogenic Thermodynamic Separation Zvichibva pakuenzanisa kwemethane (-259° F) uye nitrogen (-320° F). Sezvo musanganiswa uchitonhora, methane inozoguma yaoma isati yasvika nitrogen, nokudaro ichiparadzanisa maviri acho.
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