i-alumina ye-alumina esebenzayo ye-silica gel

I-Desiccants idlala indima ebalulekileyo ekugcineni umgangatho wemveliso kunye nokuzinza ngokufunxa ukufuma kunye nokulwa nemiba efana nokugqwala, ukubola, kunye nokuthotywa okubangelwa kukufuma. Kule nqaku, siza kujonga ngokuthe kratya kwii-desiccants ezimbini ezidumileyo - i-alumina esebenzayo kunye ne-silica gel, ukuphonononga iimpawu zabo ezikhethekileyo, izibonelelo kunye nokunciphisa.

I-alumina esebenzayo luhlobo olunemingxuma oluphezulu lwe-aluminiyam oxide eyaziwayo ngeempawu zayo ezikhethekileyo zokubhengeza. Isetyenziswa ngokubanzi kwizicelo zokumisa kwimizi-mveliso ngenxa yokukwazi ukususa umswakama emoyeni kunye neegesi. Indawo yayo enkulu kunye ne-porosity ephezulu yenza kube yi-desiccant esebenzayo yokugcina umgangatho weemveliso ezinobuthathaka ezifana namayeza, i-electronics, kunye neekhemikhali. Nangona kunjalo, enye yemida ye-alumina esebenzayo kukuba inokukhulula inani elikhulu lobushushu ngexesha lenkqubo ye-adsorption, enokuthi ingafaneleki kwizicelo ezithile.

Ngakolunye uhlangothi, i-silica gel yi-synthetic desiccant eyenziwe kwi-silicon dioxide. Iyaziwa ngommandla wayo ophakamileyo kunye nobudlelwane obuqinileyo kwiimolekyuli zamanzi, iyenza ibe yinto esebenzayo yokufuma. Ijeli ye-silica idla ngokufumaneka kwiipakethi ngaphakathi kwipakethe yemveliso ukugcina iimpahla zomile kwaye zingenakonakala kumswakama. Ikwasetyenziselwa ukukhusela izixhobo zombane, iikhamera, kunye nempahla yesikhumba ngexesha lokugcinwa nokuthutha. Ngaphandle kokusebenza kwayo, ijeli ye-silica inomthamo omncinci we-adsorption kwaye inokufuna ukutshintshwa okanye ukuhlaziywa rhoqo.

Zombini i-alumina esebenzayo kunye nejeli ye-silica zinamandla kunye nobuthathaka bazo xa kuziwa kwintengiso yokufuma. Ngelixa i-alumina esebenzayo ilungele ukomiswa kwimizi-mveliso kunye nosetyenziso olukhulu, ijeli ye-silica ilunge ngakumbi kwiimveliso ezincinci, ezibuthathaka ngakumbi. Ukuqonda iimpawu ezicacileyo zala ma-desiccants kubalulekile ekukhetheni okulungileyo kwimiba ethile enxulumene nokufuma.

Ukongeza kwiimpawu zabo ezihlukeneyo, zombini i-desiccants ineendlela ezahlukeneyo zokubhengezwa komswakama. I-alumina esebenzayo isebenza ngenkqubo eyaziwa ngokuba yi-physisorption, apho iimolekyuli zamanzi zibhengezwa ngokoqobo kumphezulu we-desiccant. Kwelinye icala, ijeli ye-silica isebenzisa indibaniselwano ye-adsorption ebonakalayo kunye ne-capillary condensation ukuze ibambe ukufuma ngaphakathi kweepores zayo. Ukuqonda ezi ndlela kubalulekile ekuphuculeni ukusebenza kwe-desiccants kwizicelo ezahlukeneyo.

Ngapha koko, ezi desiccants zifumana ukusetyenziswa ngokubanzi kumashishini ahlukeneyo. I-alumina esebenzayo isetyenziswa kakhulu ekomisweni komoya ocinezelweyo kunye neegesi, kunye nokucocwa kolwelo olufana nepropane kunye nebutane. Ikwasetyenziselwa ukomisa izinyibilikisi kunye nasekukhupheni ukungcola kwigesi yendalo. Ijeli yesilika, kwelinye icala, iqhele ukusetyenziselwa ukukhusela izixhobo ze-elektroniki ezinovakalelo, ukuthintela umhlwa nokubola kwimipu, nokugcina amaxwebhu abalulekileyo kunye nomsebenzi wobugcisa.

Ekugqibeleni, zombini i-alumina esebenzayo kunye ne-silica gel desiccants idlala indima ebalulekileyo ekugcineni umgangatho wemveliso kunye nokuzinza ngokubala imiba enxulumene nomswakama. I-desiccant nganye ineempawu zayo ezizodwa, izibonelelo, kunye nokunciphisa, okwenza ukuba zilungele izicelo ezahlukeneyo. Ukuqonda izakhiwo, iindlela ze-adsorption yomswakama, kunye nokusetyenziswa kwezi desiccants kubalulekile ekusebenziseni ngokufanelekileyo kumashishini ahlukeneyo. Ingaba i-industrial drying okanye ukukhusela i-electronics, i-desiccant efanelekileyo inokwenza umehluko omkhulu ekugcineni ukuthembeka kwemveliso kunye nomgangatho.