Investigation of propanol-adblue blends as a reductant agent in a SCR system

In this study, Ag-Pd-Ti based catalyst was synthesized with the impregnation method for hydrocarbon-selective catalytic reduction (HC-SCR) system. In this system, a mixture of propanol and adblue was used as reducing agents and the effect of the synthesized catalyst on NOx conversion efficiency was investigated. The analysis done by SEM, XRD, and BET revealed the structural and chemical properties of the catalysts. In the SCR exhaust test performance system, experiments in a temperature ranging from 170°C to 300°C, and 1 space velocity SV (30000h-1) were conducted using the prepared catalyst. The tests were conducted using 2 cylinders, V-type diesel motor with constant speed(3000r/m), and in 4 different engine loads (1, 2, 3 and 4 KW). In conclusion, NOx conversion rates changed approximately between 42% and 68%. The highest NOx conversion rate recorded in the tests was 68,1% at 4KW engine load, 100% propanol spraying and SV=30000h-1.