Waa maxay beddelka catalytic:
Beddelaha catalytic waa qayb ka mid ah nidaamka qiiqa baabuurta. Aaladda beddelidda catalytic waa aaladda sifaynta qiiqa ee adeegsata shaqada kicinta si ay ugu beddelato CO, HC iyo NOx gaaska qiiqa gaasaska aan waxyeello u geysan jidhka bini'aadamka, sidoo kale loo yaqaan aalad beddelidda kicinta. Aaladda beddelka catalytic waxay u beddeshaa saddexda gaas waxyeellada leh ee Co, HC iyo NOx ee gaasta qiiqa ku jira gaas aan waxyeello lahayn kaarboon laba ogsaydh, nitrogen, hydrogen iyo biyaha iyada oo loo marayo falcelinta oksaydhka, falcelinta dhimista, falcelinta gaaska ku salaysan biyaha iyo falcelinta kor u qaadista uumiga .
Marka loo eego qaabka sifaynta ee aaladda beddelka catalytic, waxa loo qaybin karaa aalad beddelidda oxidation katalytic, aalad beddelidda katalytiga dhimista iyo aalad beddelka katalytiga ee saddex-geesoodka ah.
