I-molecle i-sievesZeziphi izixhobo ezibalulekileyo ezisetyenziswa kwiinkqubo ezahlukeneyo zemizi mveliso zokuphula iimolekyuli ngokusekwe kubungakanani kunye nobume bayo. Ziyi-alristalline ye-altinosilicates ene-aluenting ye-aluminiing ye-alumina kunye ne-silica tetrahedra. Eyona isetyenziswayoI-molecle i-sieveszii-3a kunye ne-4A, eyahlukileyo kubungakanani babo bezinto kunye nezicelo.
I-4a molecular inobukhulu obunemongo malunga ne-4 ye-Angstroms, ngelixaI-3a i-molecularYiba nobungakanani obuncinci obuphakamileyo malunga nee-AGSTROM ezi-3. Umahluko kubungakanani be-Poree ziphumo ngokwamahluko kwizakhono zabo ze-adsorction kunye nokukhetha iimolekyuli ezahlukeneyo.I-4A moleclerzihlala zisetyenziselwa ukupheliswa kwenkunkuma yegesi kunye nolwelo, kunye nokususwa kwamanzi kwi-sliols nakwigesi yendalo. Kwelinye icala, i-SEORINGINS iqashiwe ngokuyintloko ikhutshelwe ngamanzi amdaka kunye ne-hydrocarbons engekhoyo kunye ne-polar.
Ukwahluka kobukhulu be-pore kuchaphazela iindidi zeemolekyuli ezinokubonakala ngohlobo ngalunye lwe-molecular. I-4a i-molecular isebenza kakuhle kwiimolekyuli ezinkulu ezinje ngamanzi, i-carbon diokroxide, kunye ne-chave ezingenakuthelekiswa, ngelixa i-chavesm ye-hydrocar, ngelixa i-hiolopurm ithathela ingqalelo kwiimolekyuli ezincinci njengamanzi, i-ammonia, kunye ne-alconia, kunye notywala. Oku khetha ukukhetha kubalulekile kwizicelo apho kunyanzelekile ukuba kususwe kumxube wegesi okanye ulwelo.
Enye into ebalulekileyo ekufuneka uyiqwalasele xa ukhetha phakathiI-3A kunye ne-4A ye-moleclekukukwazi kwabo ukumelana namanqanaba ahlukeneyo omswakama. I-3ieves ze-molecular zinokuchasana okuphezulu kwi-vapor yamanzi xa kuthelekiswa ne-4A Molecular, ezibenza bazilungele izicelo apho ubukho bokufuma yinkxalabo. Oku kwenza ukuba i-3A Molecular ilungele ukusetyenziswa kwiinkqubo zomoya kunye negesi eyomisa apho ukususwa kwamanzi kubalulekile.
Ngokwezicelo zemizi-mveliso, i-SEERUNE ye-MOECURO iqhele ukusetyenziswa kwimveliso yeoksijini kunye ne-nitrogen kwiinkqubo zokwahlukana koMoya, kunye nokomisa kweenyoka kunye negesi yendalo. Ukukwazi kwabo ukususa amanzi ngokufanelekileyo kunye ne-carbon diokside kubangela ukuba baxabiseke kwezi nkqubo. Kwelinye icala, i-SEORINGINA MOLERAN ifumana ukusetyenziswa kakhulu kokusoma kwee-hydrocarbons ezingenazo, ezinje ngerhasi eqhekekileyo, i-propleyne, kunye ne-butadiene, kunye nokucocwa kwegesi yepetroleum yepetroleum.
Kubalulekile ukuba uqaphele ukuba ukhetho phakathi kwe-3a kunye ne-4A ye-MALECRUS ixhomekeke kwiimfuno ezithile zesicelo, kubandakanya uhlobo lweemolekyuli eziza kuqinisekiswa, kunye nokucoceka okufunwayo kwemveliso yokuphela. Ukuqonda umahluko phakathi kwale mimandla yemolekyuli kubalulekile ekukhetheni eyona ndlela ifanelekileyo kwinkqubo ethile yemizi-mveliso.
Ukuqukumbela, ngelixa zombiniI-3A kunye ne-4A ye-moleclezibalulekile kwii-disdication ezahlukeneyo kunye neenkqubo zokucoca, ukwahluka kwawo kubukhulu be-pore, ukukhetha ukukhetha, kunye nokuxhathisa kumswakama kubenze balungele izicelo ezahlukileyo. Ngokuqonda lo mahluko, amashishini anokwenza izigqibo ezinolwazi malunga nokukhethwa kunye nokusetyenziswa kwemolekyuli yokuphucula iinkqubo zabo kwaye kufezekise ukucoceka kwemveliso oyifunayo.
IXESHA LOKUQALA: Jun-27 ukuya ku-4024