Nkhani

Pressure swing adsorption kupanga nayitrogeni

amagwiritsa mpweya monga zopangira, mpweya maselo sieve monga adsorbent, ntchito mfundo kuthamanga kusinthasintha adsorption, ntchito mpweya maselo sieve kusankha adsorb mpweya ndi nayitrogeni kulekanitsa nayitrogeni ndi mpweya, amene amadziwika kuti PSA asafe.Njira imeneyi ndi teknoloji yatsopano yopanga nayitrogeni yomwe idakula mwachangu m'ma 1970.Poyerekeza ndi njira yachikhalidwe yopanga nayitrogeni, ili ndi zabwino zake zoyenda mosavuta, kuchuluka kwamagetsi, kupanga gasi mwachangu (mphindi 15-30), kugwiritsa ntchito mphamvu zochepa, kuyeretsedwa kwazinthu kumatha kusinthidwa mokulirapo malinga ndi zosowa za ogwiritsa ntchito, ntchito ndi kukonza ndi yabwino, ndi opareshoni Ndi makhalidwe otsika mtengo ndi wamphamvu kusinthasintha, ndi mpikisano ndithu mu zipangizo nayitrogeni kupanga zosakwana 1000Nm3/h, ndipo kwambiri ndi wotchuka kwambiri ndi ang'onoang'ono ndi sing'anga nayitrogeni ogwiritsa.Kupanga nayitrogeni kwa PSA kwakhala njira yoyamba kwa ogwiritsa ntchito ang'onoang'ono komanso apakatikati.

Cryogenic Air Separation Nayitrojeni

Kupanga nayitrogeni wa Cryogenic polekanitsa mpweya ndi njira yachikhalidwe yopanga nayitrogeni yokhala ndi mbiri yazaka makumi angapo.Imagwiritsa ntchito mpweya ngati zinthu zopangira, zoponderezedwa ndi zoyeretsedwa, kenako zimagwiritsa ntchito kusinthana kwa kutentha kuti zisungunuke mpweya kukhala mpweya wamadzimadzi.Air Liquide makamaka osakaniza amadzimadzi okosijeni ndi nayitrogeni wamadzimadzi, pogwiritsa ntchito malo otentha osiyanasiyana amadzimadzi okosijeni ndi nayitrogeni wamadzimadzi (pa 1 atmosphere, kuwira koyambirira ndi -183 ° C, ndipo komaliza ndi -196 ° C) , kupyolera mu kukonzanso kwa Liquid Air , Alekanitse kuti apeze nayitrogeni.Cryogenic mpweya kupatukana nayitrogeni zipangizo kupanga ndi zovuta, chimakwirira dera lalikulu, mkulu zomangamanga ndalama, zambiri nthawi imodzi zida ndalama, mkulu ntchito ndalama, pang'onopang'ono mpweya kupanga (12-24h), mkulu unsembe zofunika, ndi mkombero yaitali.Comprehensive zida, unsembe ndi zomangamanga zinthu, zida m'munsimu 3500Nm3/h, ndalama lonse la PSA chipangizo cha mfundo yomweyo ndi 20% -50% m'munsi kuposa chipangizo cryogenic mpweya kulekana.Zida zopangira nayitrogeni za Cryogenic mpweya ndizoyenera kupanga nayitrogeni m'mafakitale akuluakulu, pomwe kupanga nayitrogeni wapakatikati ndi pang'ono sikuli bwino.

Membrane Air Separation Nitrogen Production

Kugwiritsa ntchito mpweya ngati zopangira, pansi pazifukwa zina, kugwiritsa ntchito mpweya ndi nayitrogeni ndi mpweya wina wokhala ndi zinthu zosiyanasiyana mu nembanemba zimakhala ndi ma permeation osiyanasiyana kuti alekanitse mpweya ndi nayitrogeni.Poyerekeza ndi zida zina zopangira nayitrogeni, ili ndi maubwino a mawonekedwe osavuta, voliyumu yaying'ono, osasintha valavu, kusamalidwa pang'ono, kupanga gasi mwachangu (≤3 mphindi), komanso kukulitsa mphamvu.Ndiwoyenera makamaka kuyera kwa nayitrogeni ≤ 98% ya ogwiritsa ntchito apakati ndi ang'onoang'ono a nayitrogeni ali ndi chiŵerengero chabwino kwambiri cha mtengo ndi ntchito.Pamene kuyera kwa nayitrogeni kuli pamwamba pa 98%, mtengo wake ndi woposa 15% kuposa jenereta ya PSA ya nayitrogeni yofanana.