.Chipinda chochotsera madzi m'thupi amachotsa nayitrogeni mu mpweya wachilengedwe kukonzekera kutumiza mapaipi. Malinga ndi deta ya bungwe la Natural Gas Research Institute, 17% ya mpweya wachilengedwe womwe uli ku United States uli ndi nayitrogeni wambiri. Miyezo yambiri ya mapaipi imafuna kuti nayitrogeni wambiri mu mpweya wachilengedwe ukhale wochepera 4%. Mpweya wachilengedwe wokhala ndi nayitrogeni wambiri umakhala wosowa chifukwa sunganyamulidwe kumsika kudzera m'mapaipi. Ngati pali nayitrogeni wochuluka mupaipi, pali chiopsezo cha kutsekeka kwa mpweya kapena kuyaka kosakwanira. Nayitrogeni imachepetsanso mphamvu yamagetsi ya mpweya, zomwe zimapangitsa kuti BTU ndi mtengo wake zichepe.
Popeza nayitrogeni (N2) ndi methane (CH4) zili ndi kukula kofanana kwa mamolekyulu ndi ma dielectric constants otsika, komanso kusowa kwa reactivity yosankha, monga carbon dioxide kapena hydrogen sulfide m'mayunitsi a amine, denitrification ndi kulekanitsa kovuta kwaukadaulo.
Kutulutsa mpweya wa pressure swing (PSA), kugawa kutentha pang'ono komanso kuyamwa mafuta pang'ono kwagwiritsidwa ntchito kuchotsa nayitrogeni mu mpweya wachilengedwe.
Kuthamanga kwa kuthamanga kwa magazi (PSA) kumagwiritsa ntchito chokometsera madzi kuti chisamalire bwino. siyanitsani nayitrogeni ndi methaneMpweyawo umabwezeretsedwanso kuchokera ku adsorbent pogwiritsa ntchito kuphatikiza kwa kuthamanga ndi kusintha kwa kutentha. PSA imagwiritsidwa ntchito pochotsa mpweya m'madzi, kuchotsa carbon dioxide, kuchenesa ndi kulamulira madontho a hydrocarbon dew.
Kupatukana kwa cryogenic kumagwiritsa ntchito cryogenic Thermodynamic Separation Kutengera ndi malo owiritsa ofanana a methane (- 259° F) ndi nayitrogeni (- 320° F). Pamene chisakanizocho chikuzizira, methane imaundana isanayambe nayitrogeni, motero imalekanitsa ziwirizi.
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