Txhua txoj hauv kev rau kev tsim cov catalysts yog qhov sib xyaw ua ke ntawm cov haujlwm ua haujlwm. Txhawm rau kom yooj yim, cov haujlwm tseem ceeb thiab txawv txav tau raug hu ua txoj kev tsim khoom. Cov txheej txheem ib txwm muaj xws li kev sib xyaw ua ke, nag lossis daus, impregnation, kua evaporation, thermal melting, leaching (leaching), thiab ion pauv. Cov txheej txheem tshiab muaj xws li kev sib txuas tshuaj lom neeg thiab fibrosis.
Txoj kev no yog qhov yooj yim thiab siv tau yooj yim. Piv txwv li, hauv kev tsim cov kev hloov dua siab tshiab- nqus desulfurizers, cov khoom siv ua haujlwm (xws li manganese dioxide, zinc oxide, thiab zinc carbonate) thiab ib qho me me ntawm binder (xws li magnesium oxide thiab calcium oxide) yog ntsuas thiab txuas ntxiv mus rau lub rotating disk nrog adjustable ceev thiab inclination. Nyob rau tib lub sijhawm, metered dej yog txau rau hauv, thiab cov hmoov yog dov, sib tov, thiab khi rau hauv cov spheres ntawm cov kab sib xws. Cov spheres no ces qhuav thiab calcined kom tau cov khoom tiav.
Txoj kev no yog siv los tsim cov catalysts uas yuav tsum tau muaj kev sib cais siab thiab muaj ib lossis ntau dua hlau oxides. Hauv kev tsim khoom ntawm ntau- cov khoom siv catalysts, cov dej nag tsim nyog yog qhov tseem ceeb rau kev ua kom cov khoom sib xws ntawm cov khoom muaj pes tsawg leeg thiab ua kom muaj siab - cov catalysts zoo. Txoj kev niaj zaus suav nrog kev ntxiv cov dej nag (xws li sodium carbonate lossis calcium hydroxide) rau kev daws ntawm ib lossis ntau dua hlau ntsev, ua raws li los ntawm nag lossis daus, ntxuav, pom, ziab, shaping, thiab calcination (los yog ua kom) kom tau txais cov khoom kawg.
