O le a le eseesega i le va o sieves molecular 3a, 4a ma le 5a?Po'o fa'aoga tutusa ia ituaiga 3 mole mole mole?O a mea e feso'ota'i ma le ta'iala galue?O fea pisinisi e sili atu ona talafeagai mo?Sau e su'e ma JXKELLEY.
1. Le fua fa'a kemikolo o le 3a 4a 5a sieve mole
3A molecular sieve fua fa'atatau kemikolo: 2/3K₂O1₃·Na₂₂O·Al₂O₃·2SiO₂.·4.5H₂O
4A mole mole sieve fua faatatau kemikolo: Na₂O·Al₂O₃·2SiO₂·4.5H₂O
5A molecular sieve fua faatatau kemikolo: 3/4CaO1/4Na₂OAl₂O₃·2SiO₂·4.5H₂O
2. O le pore tele o le 3a 4a 5a sieve mole
O le mataupu faavae galue o sieves mole e masani ona fesootai i le pore tele o sieves mole, lea e 0.3nm/0.4nm/0.5nm faasologa.E mafai ona latou fa'afefe mole kasa o lo'o la'ititi le lautele o le mole nai lo le pu.O le tele o le tele o le pore size, o le sili atu foi lea o le malosi o le adsorption.O le tele o le pore e ese, ma o mea e faʻamama ma vavae ese e eseese foi.I ni faaupuga faigofie, 3a mole mole sieve e mafai ona adsorb molelaʻau i lalo ole 0.3nm, 4a mole mole sieve, o le adsorbed molelini e tatau foi ona itiiti ifo i le 0.4nm, ma le 5a mole sieve e tutusa.A faʻaaogaina e fai ma faʻamaʻi, e mafai e le molecular sieve ona mitiia le 22% o lona lava mamafa ile susu.
3. 3a 4a 5a molecular sieve talosaga alamanuia
3A molecular sieve e masani ona faʻaaogaina mo le faʻamagoina o le suauʻu gaʻo kasa, olefin, kesi faʻamamaina ma le suauʻu kasa, faʻapea foʻi ma le desiccant i vailaʻau, vailaʻau, tioata faʻapipiʻi ma isi pisinisi.E masani ona faʻaaogaina mo le faʻamagoina o vai (e pei o le ethanol), faʻamagoina o le ea o tioata faʻapipiʻi, faʻamago kasa faʻafefiloi ma hydrogen, faʻamago refrigerant, ma isi.
4A mole mole sieves e masani ona faʻaaogaina mo le faʻamagoina o kesi masani ma kasa vailaʻau eseese ma vai, refrigerants, pharmaceuticals, faʻamatalaga faʻaeletoroni ma mea faʻafefe, faʻamamaina argon, ma vavae ese methane, ethane ma propane.Fa'aaogaina mo le fa'agogo loloto o kasa ma vai e pei o le ea, kasa masani, hydrocarbons, refrigerants;sauniuniga ma le faamamaina o argon;fa'amago fa'atutu o mea fa'aeletoroni ma mea e pala;fa'amama vai i vali, polyesters, vali ma fa'alavalava .
5A molecular sieve e masani ona faʻaaogaina mo faʻamago kasa masani, desulfurization ma carbon dioxide aveese;tuueseeseina o le nitrogen ma le okesene e saunia ai le okesene, nitrogen ma le hydrogen;suau'u dewaxing e tu'u'ese'ese ai vai kaponi masani mai fa'apalapala fa'apala ma vai fa'ata'amilo.
Ae ui i lea, o le tele o luga o le eleele ma le polar adsorption o faʻafouina 5A molecular sieves e mafai ona ausia loloto adsorption o le vai ma le ammonia totoe.O le fa'afefiloi o le nitrogen-hydrogen ua pala e ulu i totonu o se mea fa'agogo e aveese ai le susu o totoe ma isi mea leaga.O le masini fa'amamāina e fa'aaogaina ai olo fa'alua fa'alua, tasi e fa'amamago le ammonia decomposition kasa, ma le isi desorbs susu ma toega amonia i se tulaga vevela (masani 300-350 ℃) e ausia ai le fa'amoemoe o le toe fa'afouina.Ia, E mafai ona e maua le eseesega i le va o 3a 4a 5a sieves mole?
Taimi meli: Aukuso-09-2022