Kupanga Nitrogen Ndi Pressure Swing Adsorption (PSA) Technology

Kodi Pressure Swing Adsorption imagwira ntchito bwanji?

Mukamapanga nayitrogeni wanu, ndikofunikira kudziwa ndikumvetsetsa mulingo womwe mukufuna kukwaniritsa.Ntchito zina zimafuna chiyero chochepa (pakati pa 90 ndi 99%), monga kukwera kwa mitengo ya matayala ndi kuteteza moto, pamene zina, monga ntchito m'makampani a zakudya ndi zakumwa kapena kupanga pulasitiki, zimafuna milingo yayikulu (kuchokera ku 97 mpaka 99.999%).Muzochitika izi ukadaulo wa PSA ndi njira yabwino komanso yosavuta yopitira.

Kwenikweni, jenereta ya nayitrogeni imagwira ntchito polekanitsa mamolekyu a nayitrogeni kuchokera ku mamolekyu a okosijeni mkati mwa mpweya wopanikizidwa.Pressure Swing Adsorption imachita izi potsekera mpweya kuchokera ku mpweya woponderezedwa pogwiritsa ntchito adsorption.Adsorption imachitika pamene mamolekyu amadzimanga okha ku adsorbent, pamenepa mamolekyu a okosijeni amamangiriridwa ku sieve ya carbon molecular (CMS).Izi zimachitika muzotengera ziwiri zosiyana, zomwe zimadzazidwa ndi CMS, zomwe zimasintha pakati pa njira yolekanitsa ndi kukonzanso.Pakadali pano, tiyeni tizitcha nsanja A ndi nsanja B.

Poyambira, mpweya wabwino ndi wouma woponderezedwa umalowa munsanja A ndipo popeza mamolekyu a okosijeni ndi ang'onoang'ono kuposa mamolekyu a nayitrogeni, amalowa m'mabowo a carbon sieve.Komano mamolekyu a nayitrojeni sangathe kulowa mu pores kotero amadutsa sieve ya carbon molecular.Zotsatira zake, mumatha ndi nayitrogeni wa chiyero chomwe mukufuna.Gawoli limatchedwa adsorption kapena separation phase.

Sizikuthera pamenepo.Nayitrogeni wambiri wopangidwa mu nsanja A amachoka m'dongosolo (okonzeka kugwiritsidwa ntchito mwachindunji kapena kusungidwa), pomwe gawo laling'ono la nayitrogeni wopangidwa limawomberedwa mu nsanja B mbali ina (kuchokera pamwamba mpaka pansi).Kuthamanga kumeneku kumafunika kukankhira mpweya umene unagwidwa mu gawo lapitalo la adsorption la nsanja B. Mwa kutulutsa kupanikizika mu nsanja B, ma sieve a carbon molecular amataya mphamvu zawo zogwira mamolekyu a okosijeni.Iwo adzachotsa ku sieve ndi kutengeka kupyolera mu utsi ndi nitrogen yaing'ono ikuyenda kuchokera ku nsanja A. Pochita izi dongosolo limapanga malo a mamolekyu atsopano a okosijeni kuti agwirizane ndi sieve mu gawo lotsatira la adsorption.Timatcha njira iyi ya 'kuyeretsa' kukhalanso kwa nsanja yodzaza ndi okosijeni.

Choyamba, thanki A ili mu gawo la adsorption pomwe thanki B imayambanso.Mu gawo lachiwiri zombo zonse zimagwirizana kukakamiza kukonzekera kusinthana.Pambuyo posintha, thanki A imayamba kuphuka pomwe thanki B imatulutsa nayitrogeni.

Panthawiyi, kukakamizidwa kwa nsanja zonse ziwiri kudzafanana ndipo iwo adzasintha magawo kuchokera ku adsorbing kupita kukonzanso ndi mosemphanitsa.CMS mu nsanja A idzakhuta, pomwe nsanja B, chifukwa cha depressurization, idzatha kuyambitsanso njira yotsatsira.Njirayi imatchedwanso ' swing of pressure ' , zomwe zikutanthauza kuti zimalola kuti mpweya wina utengeke pazitseko zamphamvu ndikumasulidwa pazitsulo zochepa.Dongosolo la nsanja ziwiri za PSA limalola kupanga nayitrogeni mosalekeza pamlingo womwe ukufunidwa.