Nayitrogeni kupanga maselo sieve

M'munda wamafakitale, jenereta ya nayitrogeni imagwiritsidwa ntchito kwambiri mu petrochemical, liquefaction ya gasi, zitsulo, chakudya, mankhwala ndi zamagetsi. The mankhwala asafe wa nayitrogeni jenereta angagwiritsidwe ntchito ngati chida mpweya, komanso monga mafakitale zopangira ndi refrigerant, amene ndi zofunika pagulu zipangizo kupanga mafakitale. Njira ya jenereta ya nayitrogeni imagawidwa m'mitundu itatu: njira yosiyanitsa mpweya wozizira kwambiri, njira yolekanitsa nembanemba ndi ma cell sieve pressure change adsorption method (PSA).
Deep ozizira mpweya kulekana njira ndi ntchito osiyana kuwira mfundo mfundo ya mpweya ndi nayitrogeni mu mlengalenga, ndi kupanga madzi asafe ndi madzi mpweya kudzera mfundo ya psinjika, refrigeration ndi otsika kutentha distillation ". Njira imeneyi akhoza kutulutsa otsika kutentha madzi asafe ndi mpweya wamadzimadzi, lalikulu kupanga sikelo; kuipa ndi ndalama lalikulu, ambiri ntchito nayitrogeni ndi mpweya kufunika makampani zitsulo ndi zitsulo.
Njira yolekanitsa ma membrane ndi mpweya ngati zopangira, pansi pa zovuta zina, pogwiritsa ntchito mpweya ndi nayitrogeni mu nembanemba ndi mitengo yosiyana ya permeability kuti mpweya ndi nayitrogeni zisiyanitse? Njirayi ili ndi ubwino wa dongosolo losavuta, palibe valavu yosinthira, voliyumu yaying'ono, ndi zina zotero, koma chifukwa zinthu za nembanemba makamaka zimadalira zogulitsa kunja, mtengo wamakono ndi wokwera mtengo ndipo mlingo wolowera ndi wotsika kwambiri, choncho umagwiritsidwa ntchito makamaka pazifukwa zapadera zoyenda pang'ono, monga makina opangira nayitrogeni am'manja.
Molecular sieve kuthamanga adsorption njira (PSA) ndi mpweya monga zopangira, mpweya maselo sieve monga adsorbent, ntchito kuthamanga adsorption mfundo, ntchito mpweya maselo sieve kwa mpweya ndi nayitrogeni adsorption ndi mpweya ndi nayitrogeni kulekana njira ". Njira imeneyi ali ndi makhalidwe a njira yosavuta otaya, mkulu mlingo wa mowa ndi zochita zokha, otsika kwambiri ndi luso nayitrogeni ntchito. mpweya umalowa munsanja ya anthu, madzi mumlengalenga ayenera kuuma kuti achepetse kukokoloka kwa madzi pa sieve ya molekyulu ndikuwonjezera moyo wautumiki wa sieve ya molekyulu ya PSA, nsanja yowumitsa imagwiritsidwa ntchito pochotsa chinyezi mumlengalenga.