Ama-molelisalar sieves: Funda ngezicelo zabo nokusebenzisa

 

ngenisa

 Ama-molelisalar sieves, eyaziwa nangokuthi amaZeolites okwenziwa, ayizinto zokwenziwa ze-porous ezikhethwe ama-molecule akhethiwe asuselwa kusayizi nobukhulu babo. Le mpahla eyingqayizivele ivumelaama-molelisalar sievesUkuthola izinhlobo ezahlukahlukene zezicelo ezimbonini ezahlukahlukene. Kulesi sihloko, sizokwehla sijule ngombuzo "Ayini ama-molefanelar sieves asetshenziselwa?" futhi ihlola ezinye izicelo ezijwayelekile.

 

Izicelo zezimboni

Enye yezicelo ezibaluleke kakhulu zamazwi ama-molefanelar isemboni kagesi nowoyela. Ama-molelisalar sives adlala indima ebalulekile ekususeni umswakama nokungcola kusuka kugesi yemvelo, okwenza kube lula ukuthutha nokusebenzisa. Ngokufanayo, kusetshenziswe ama-molelisalar sieves ngezinqubo ze-ethanol dehydration futhi ekuhlanzeni kwama-hydrocarbons, okwenza ukukhiqizwa kwamafutha namakhemikhali asezingeni eliphakeme.

Ngaphezu kwalokho, ama-molelisalar sieves asetshenziswa kabanzi ezinqubweni zokwahlukana komoya, kufaka phakathi ukukhiqizwa kwe-nitrogen, umoya-mpilo kanye namanye amagesi ezimboni. Amandla we-adsorption wama-molelisalar sieves asiza ukuhlukanisa umoya-mpilo emoyeni, akhiqize umoya-mpilo wokuhlanzeka okuphezulu okuhlangabezana nezidingo zezimboni eziningi kufaka phakathi ukunakekelwa kwezempilo, ukuthungwa kanye nokusika insimbi.

Embonini ye-petrochemical,ama-molelisalar sievesYenza njengama-catalysts noma ama-adsorbents ngesikhathi sokuguqulwa kanye nezinqubo zokuhlanza. Basiza ukususa ukungcola okufana nesibabule kanye nesibabule kanye ne-carbon dioxide futhi kuthuthukise ukusebenza kwama-catalysts, ukuthuthukisa ukukhiqizwa kwamakhemikhali namafutha.

Isicelo semvelo

Amandla we-molelisar sieves 'ama-molecule wamanzi e-adderb avela ku-liquids namagesi abenza baluleke ngezicelo ezahlukahlukene zezemvelo. Ngokwesibonelo,ama-molelisalar sieveszisetshenziswa kwisiqandisi kanye nezinhlelo zomoya womoya ukuze ususe amanzi, ngaleyo ndlela kuvinjelwe ukugqwala nokuqhwa.

 

Ngaphezu kwalokho, ama-molefanelar sieves asetshenziswa kabanzi njenge-desiccants ezintweni zokupakisha ukugcina imikhiqizo efana nemithi yezemithi kanye nama-elekthronikhi owomile. Izakhiwo ze-Hygroscopic zama-molefanelar sieves ziqinisekisa ukulondolozwa kwekhwalithi futhi kunwebe impilo yeshelufu yalezi zinto ezibucayi.

 

Izicelo zezokwelapha

Emkhakheni wezokwelapha,ama-molelisalar sievesdlala indima ebalulekile ekukhiqizeni umoya-mpilo wezokwelapha nokususa i-carbon dioxide kusuka emoyeni ophelile ngesikhathi sokubulala izinzwa. Basiza ukuphatha amagesi ezokwelapha ngokuphepha nangendlela efanele, ethuthukisa ukunakekelwa kweziguli.

 

Ekuphetheni

Ngamafuphi, ama-molelisar sieves anezinhlobonhlobo zezicelo futhi ziyizinto ezibalulekile kugesi yemvelo, uphethroli, ukuvikelwa kwemvelo, ukuvikelwa kwemvelo, ezokwelapha kanye nezinye izimboni. Amandla abo okukhetha ama-molecule akhetha ngosayizi ne-polarity kumenza asuswe izinqubo ezisukela ekuhlanzeni komzimba nokuhlanzwa kokuhlukahluka komoya kanye nokusabela kwe-catalytic. Njengoba isidingo sokuhlanza, ubuchwepheshe obusebenza kahle buqhubeka bukhula, amangqamuzana amangqamuzana ahlala eyingxenye ebalulekile ezinhlotsheni eziningi zezimboni.