Amanzi nokungcola okukhona ezincibilikisini kuyizici ezingezinhle ezinqubweni zezimboni, futhi zidinga ukususwa ngezisefo zamangqamuzana ze-zeolite, ezaziwa ngokuthi ukomiswa kwe-solvent noma ukwelapha izinyibilikisi. Ngobukhulu bazo bezimbotshana ezinembile kanye nokuzinza kwamakhemikhali, izisefo zamangqamuzana azishintsheki futhi izinto ezisebenza kahle kakhulu zokwelashwa kwezincibilikizo, ikakhulukazi ezimbonini ezinhle zamakhemikhali nezemithi.
Izinkinga Ezijwayelekile Ekulapheni Kwe-Solvent
Izincibilikisi zasezimbonini zivame ukuqukatha ukungcola, okufana namanzi eqile (avame kakhulu nanamandla kakhulu), izinto ezine-asidi noma ezine-alkaline, izinto eziphilayo, namagesi angcolile (i-carbon dioxide, i-nitrogen, nama-hydrocarbons) ezethulwe ngemva kokutholakala kwe-solvent, njll.
Imithelela yalawa manzi nokungcola ezinqubweni zezimboni ihlanganisa (kodwa kungagcini lapho): ukuphazamisa ukusebenza kwamakhemikhali, izakhiwo ezilulazayo, okudala izingozi zemvelo nempilo. Ngakho-ke kufanele zisuswe ukuze kweneliswe izidingo zenqubo, kanye nokuvimbela ukuyekelela kwikhwalithi yomkhiqizo nokugaywa kabusha kwezinyibilikisi.
Kungani I-Molecular Sieve Ingenakushintshwa?
Ukusebenza kahle: Izisefo zamangqamuzana zinamandla okukhangisa aphezulu kakhulu kanye nezinga le-adsorption, elizenza zikwazi ukususa kahle amanzi kuzincibilikisi phakathi nesikhathi esifushane, futhi ngokwenza kanjalo zithuthukise ukusebenza kahle kokomisa.
Ukukhetha: Izisefo ze-molecular zikhetha ngokukhetha ama-molecule okungcola ngaphandle kokuthikameze kakhulu ezinye izakhi ku-solvent. Lesi sakhiwo se-adsorption esikhethiwe sinikeza ama-molecular sieve izinzuzo ezihlukile ezinqubweni zokwelapha ezincibilikisiwe.
Ukuzinza: Njengezinto ezinhle kakhulu ze-adsorption, izisefo zamangqamuzana zibonisa ukuzinza okuphezulu kokushisa kanye nokuzinza kwamakhemikhali, futhi zingagcina ukusebenza kwe-adsorption okuzinzile ngaphansi kwezimo ezihlukahlukene zokusebenza nezimo ze-kinetic.
Ukwenziwa Kabusha: Izisefo zamangqamuzana ziwumsebenzi ohambisana nemvelo, futhi ukusebenza kwawo kwe-adsorption kungabuyiselwa ngenqubo yokuvuselela, okuvumela ukugaywa kabusha futhi ngaleyo ndlela kwehle izindleko zomnotho.
Ama-Sieve E-Molecular For Solvent Ukwelapha
Thayipha i-3A Zeolite Molecular Sieve: Ifanele ukomisa izincibilikisi ze-molecule ze-polar ezifana ne-ethanol, i-methanol, i-acetone, i-DMF, i-THF, njll. Ingase futhi isetshenziselwe ukomisa izincibilikisi ezifana ne-acetonitrile ne-2-propanol.
Thayipha i-4A Zeolite Molecular Sieve: Isetshenziswa ngokuvamile futhi ibiza{1}}i-desiccant esebenzayo enamandla okumunca. Ilungele ukomisa ama-solvents aphakathi nendawo njenge-chloroform, i-dichloromethane, i-ether, i-ethane nokunye.
Thayipha i-5A Zeolite Molecular Sieve: Ingakwazi ukumunca amanzi, i-carbon dioxide, i-hydrogen sulfide, nama-molecule amancane njengama-alkanes aqondile. Ilungele ukwelapha izinyibilikisi ezixubile, ukususa ukungcola kwe-polar, nokuhlukanisa ama-hydrocarbon.
Thayipha i-13X Zeolite Molecular Sieve: Inosayizi wezimbotshana ezinkudlwana namandla okukhangisa aphezulu, futhi ifanele ukwelashwa kwe-polar nokungeyona{1}}i-polar solvent. Isetshenziswa kabanzi ukususa amanzi nokungcola ezincibilikisini ezifana nephunga elimnandi nama-alkanes.
