Alumina ikoreshwa muri catalizator ikunze kwitwa "activate alumina".Nibintu byoroshye kandi bitatanye cyane hamwe nubuso bunini.Ubuso bwa microporome yayo ifite ibimenyetso bisabwa kuri catalizike, nkibikorwa bya adsorption, ibikorwa byubuso, ituze ryiza cyane, nibindi.