Isopropanolkanye ne-ethanol yizidakwa ezimbili ezidumile ezinezicelo eziningi ezimbonini ezahlukahlukene.Nokho, izakhiwo zabo kanye nokusetshenziswa kwehluka kakhulu.Kulesi sihloko, sizoqhathanisa futhi sihlukanise i-isopropanol ne-ethanol ukuze sinqume ukuthi yikuphi "okungcono".Sizocabangela izici ezifana nokukhiqiza, ubuthi, ukuncibilika, ukuvutha, nokuningi.

Ukuze siqale, ake sibheke izindlela zokukhiqiza zalezi zidakamizwa ezimbili.I-Ethanol ivame ukukhiqizwa ngokuvutshelwa kukashukela okhishwe ku-biomass, okuyenza ibe insiza evuselelekayo.Ngakolunye uhlangothi, i-isopropanol ihlanganiswa kusuka ku-propylene, i-petrochemical derivative.Lokhu kusho ukuthi i-ethanol inenzuzo mayelana nokuba enye indlela esimeme.

Manje ake sihlole ubuthi bazo.I-Isopropanol inobuthi kakhulu kune-ethanol.Iguquguquka kakhulu futhi ine-flash point ephansi, okuyenza ibe ingozi yomlilo eyingozi.Ukwengeza, ukungeniswa kwe-isopropanol kungabangela imiphumela emibi yezempilo, kuhlanganise nokulimala kwesibindi nezinso, ukucindezeleka kwesimiso sezinzwa esimaphakathi, ngisho nokufa ezimweni ezimbi kakhulu.Ngakho-ke, uma kukhulunywa ngobuthi, i-ethanol ngokusobala iyindlela ephephile.

Ukuqhubekela ekuncibilikeni, sithola ukuthi i-ethanol inokunyibilika okuphezulu emanzini uma kuqhathaniswa ne-isopropanol.Lesi sakhiwo senza i-ethanol ifaneleke kakhulu ukusetshenziswa ezinhlelweni ezahlukahlukene njengezibulala-magciwane, izinyibilikisi, nezimonyo.I-Isopropanol, ngakolunye uhlangothi, ine-solubility ephansi emanzini kodwa ixubene kakhulu nezincibilikisi eziphilayo.Lesi sici siyenza ifanelekele ukusetshenziswa kumapende, ama-adhesives, nama-coatings.

Okokugcina, ake sicabangele ukuvutha.Bobabili utshwala buvutha kakhulu, kodwa ukuvutha kwabo kuncike ekugxilweni nasekukhona kwemithombo yokuthungela.I-Ethanol ine-flash point ephansi kanye nezinga lokushisa elizenzakalelayo kune-isopropanol, okwenza kube lula ukubamba umlilo ngaphansi kwezimo ezithile.Nokho, kokubili kufanele kusingathwe ngokuqapha okukhulu lapho kusetshenziswa.

Ekuphetheni, utshwala "obungcono" phakathi kwe-isopropanol ne-ethanol buncike ekusetshenzisweni okuqondile kanye nezakhiwo ezifunwayo.I-Ethanol igqama njengenketho ekhethwayo mayelana nokusimama nokuphepha.Ubuthi bayo obuphansi, ukuncibilika okuphezulu emanzini, kanye nomthombo ovuselelekayo kuyenza ifanelekele ukusetshenziswa okubanzi kusukela kwezibulala amagciwane kuya kuphethiloli.Kodwa-ke, kwezinye izinhlelo zokusebenza zezimboni lapho izakhiwo zayo zamakhemikhali zidingeka, i-isopropanol ingaba yisinqumo esingcono.Noma kunjalo, kubalulekile ukuphatha zombili lezi zidakamizwa ngokuqapha okukhulu njengoba zivutha kakhulu futhi zingaba yingozi uma zingaphathwanga kahle.