Uyini umehluko phakathi kwezisefo ze-molecular 3a, 4a kanye no-5a?Ingabe lezi zinhlobo ezi-3 zezisefo zamangqamuzana zisetshenziselwa injongo efanayo?Yiziphi izici ezihlobene nesimiso sokusebenza?Yiziphi izimboni ezifaneleke kakhulu?Woza uthole nge-JXKELLEY.
1. Ifomula yamakhemikhali ye-3a 4a 5a isisefo se-molecular
3Ifomula yekhemikhali ye-molecular sieve: 2/3K₂O1₃·Na₂₂O·Al₂O₃·2SiO₂.·4.5H₂O
4Ifomula yekhemikhali ye-molecular sieve: Na₂O·Al₂O₃·2SiO₂·4.5H₂O
5Ifomula yekhemikhali ye-molecular sieve: 3/4CaO1/4Na₂OAl₂O₃·2SiO₂·4.5H₂O
2. Usayizi wembotshana we-3a 4a 5a isisefo se-molecular
Isimiso sokusebenza sezisefo zamangqamuzana ikakhulukazi sihlobene nosayizi wezimbotshana zezisefo zamangqamuzana, angu-0.3nm/0.4nm/0.5nm ngokulandelana.Bangakwazi ukukhangisa ama-molecule egesi ubukhulu bawo be-molecule buncane kunosayizi we-pore.Ubukhulu bosayizi wembotshana, bukhulu amandla okukhangisa.Ubukhulu bembotshana buhlukile, futhi izinto ezihlungwayo nezihlukaniswayo nazo zihlukile.Ngamagama alula, isisefo se-molecular 3a singakhanga kuphela ama-molecule angaphansi kuka-0.3nm, 4a isisefo samangqamuzana, ama-molecule akhangisiwe nawo kufanele abe ngaphansi kuka-0.4nm, kanye no-5a isisefo se-molecular kuyafana.Uma isetshenziswa njenge-desiccant, isisefo se-molecular singamunca kuze kufike ku-22% wesisindo saso emswanini.
3. 3a 4a 5a imboni yokufaka isisefo samangqamuzana
I-3Isisefo samangqamuzana sisetshenziswa kakhulu ukomisa igesi yokuqhekeka ye-petroleum, i-olefin, igesi yokuhluza kanye negesi yase-oilfield, kanye ne-desiccant kumakhemikhali, imithi, ingilazi yokuvikela kanye nezinye izimboni.Ikakhulukazi isetshenziselwa ukomisa uketshezi (okufana ne-ethanol), ukomiswa komoya kwengilazi evikela ukushisa, i-nitrogen ne-hydrogen exutshwe negesi yokomisa, ukomiswa kwesiqandisi, njll.
4Izisefo zamamolekyuli zisetshenziselwa kakhulu ukomisa igesi yemvelo kanye namagesi amakhemikhali ahlukahlukene noketshezi, iziqandisi, imithi, idatha ye-elekthronikhi nezinto eziguquguqukayo, i-argon yokuhlanza, nokuhlukanisa i-methane, i-ethane ne-propane.Ikakhulukazi esetshenziselwa ukomiswa okujulile kwamagesi noketshezi olunjengomoya, igesi yemvelo, ama-hydrocarbon, iziqandisi;ukulungiswa nokuhlanzwa kwe-argon;ukomiswa okumile kwezakhi ze-elekthronikhi nezinto ezibolayo;i-ejenti eqeda amanzi emzimbeni kumapende, ama-polyester, odayi nama-coatings.
5Isisefo se-molecular sisetshenziswa kakhulu ukomisa igesi yemvelo, i-desulfurization kanye nokususwa kwe-carbon dioxide;ukuhlukaniswa kwe-nitrogen ne-oxygen ukulungisa umoya-mpilo, i-nitrogen ne-hydrogen;i-petroleum dewaxing ukuze ihlukanise ama-hydrocarbon ajwayelekile kuma-hydrocarbons anegatsha kanye nama-cyclic hydrocarbon.
Kodwa-ke, indawo enkulu ethile engaphezulu kanye ne-polar adsorption yamasefa e-molecular 5A avuselelekayo angakwazi ukuzuza ukujula kwamanzi kanye ne-ammonia esele.Ingxube ye-nitrogen-hydrogen ebolile ingena endaweni yokomisa ukuze isuse umswakama osele nokunye ukungcola.Idivayisi yokuhlanza isebenzisa imibhoshongo ephindwe kabili, eyodwa idonsa igesi eyomile yokubola kwe-ammonia, kanti enye iqeda umswakama ne-ammonia esele endaweni eshisayo (ngokuvamile engu-300-350℃) ukuze kuzuzwe injongo yokukhiqiza kabusha.Manje, Ungakwazi yini ukuthola umehluko phakathi kwezisefo ze-molecular 3a 4a 5a?
Isikhathi sokuthumela: Aug-09-2022