Phapano ke efe lipakeng tsa 3a, 4a le 5a sieve ea molek'hule?Na mefuta ee e 3 ea lisefa tsa molek'hule li sebelisetsoa morero o le mong?Ke lintlha life tse amanang le molao-motheo oa ho sebetsa?Ke liindasteri life tse loketseng haholoanyane?Tloo 'me u tsebe ka JXKELLEY.
1. Mokhoa oa lik'hemik'hale oa 3a 4a 5a sieve ea molek'hule
3A molecular sieve chemical formula: 2/3K₂O1₃·Na₂₂O·Al₂O₃·2SiO₂.·4.5H₂O
4A molecular sieve chemical formula: Na₂O·Al₂O₃·2SiO₂·4.5H₂O
5A molecular sieve chemical formula: 3/4CaO1/4Na₂Oal₂O₃·2SiO₂·4.5H₂O
2. Boholo ba pore ea 3a 4a 5a sieve ea molek'hule
Molao-motheo oa ts'ebetso oa li-sieve tsa limolek'hule o amana haholo le boholo ba pore ea sieve ea molek'hule, e leng 0.3nm/0.4nm/0.5nm ka ho latellana.Ba ka adsorb limolek'hule tsa khase tseo bophara ba tsona ba molek'hule bo leng nyane ho feta boholo ba pore.Ha boholo ba boholo ba pore bo le boholo, matla a adsorption a maholo.Boholo ba pore bo fapane, 'me lintho tse sefiloeng le tse arohaneng le tsona li fapane.Ka mantsoe a bonolo, 3a sieve ea limolek'hule e ka bapa limolek'hule tse ka tlase ho 0.3nm, 4a sieve ea molek'hule, limolek'hule tse batiloeng le tsona li tlameha ho ba ka tlase ho 0.4nm, 'me 5a sieve ea molek'hule e tšoana.Ha e sebelisoa e le desiccant, sieve ea molek'hule e ka monya ho fihlela ho 22% ea boima ba eona ka mongobo.
3. 3a 4a 5a indasteri ea kopo ea molecular sieve
3Sieve ea molek'hule e sebelisoa haholo-holo bakeng sa ho omisa khase ea petroleum, olefin, khase e hloekisang le khase ea oli, hammoho le desiccant ka lik'hemik'hale, meriana, likhalase tse sireletsang metsi le liindasteri tse ling.Haholo-holo e sebelisetsoa ho omisa metsi (joaloka ethanol), ho omisa moea ka khalase e sireletsang, naetrojene le hydrogen e omisitsoeng ka khase e tsoakiloeng, ho omisa ka sehatsetsing, joalo-joalo.
4 Li-sieve tsa molek'hule li sebelisoa haholo ho omisa khase ea tlhaho le likhase tse fapaneng tsa lik'hemik'hale le lino, lihatsetsi, meriana, lintlha tsa elektroniki le lintho tse senyehang, ho hloekisa argon le ho arola methane, ethane le propane.Haholo-holo e sebelisetsoa ho omisa ka botebo ba likhase le lino tse kang moea, khase ea tlhaho, li-hydrocarbon, lihatsetsi;ho lokisetsa le ho hloekisa argon;ho omisoa ha static ha likarolo tsa elektronike le lisebelisoa tse senyehang;ho felloa ke metsi 'meleng ka lipente, li-polyester, lidae le lirafshoa.
5Sieve ea molek'hule e sebelisoa haholo-holo bakeng sa ho omisa khase ea tlhaho, desulfurization le ho tlosa carbon dioxide;karohano ea naetrojene le oksijene ho lokisa oksijene, naetrojene le hydrogen;petroleum dewaxing ho arola li-hydrocarbon tse tloaelehileng ho li-hydrocarbon tse nang le makala le li-cyclic hydrocarbon.
Leha ho le joalo, sebaka se seholo se khethehileng sa holim'a metsi le polar adsorption ea li-sieve tsa molek'hule tsa 5A tse ka nchafatsoang li ka finyella ho kenngoa ho tebileng ha metsi le masala a ammonia.Motsoako o bolileng oa naetrojene le haedrojene o kena se omisitsoeng ho tlosa mongobo o setseng le litšila tse ling.Sesebelisoa sa tlhoekiso se amohela litora tse habeli tsa adsorption, e 'ngoe e monya khase e omileng ea ammonia,' me e 'ngoe e senya mongobo le masala a ammonia sebakeng se futhumetseng (ka kakaretso 300-350 ℃) ho fihlela sepheo sa ho nchafatsa.Joale, na u ka fumana phapang lipakeng tsa 3a 4a 5a sieve ea molek'hule?
Nako ea poso: Aug-09-2022