Production and characterization of AG based catalyst for HC-SCR system

Authors : Hakan Hanna ÇALIŞKAN, Ali KESKİN

Pages : 154-160

Doi:10.18245/ijaet.963529

View : 31 | Download : 7

Publication Date : 2021-12-31

Article Type : Research Paper

Abstract :In this study, Ag-Cu-Ce/TiO2 catalyst was produced by using impregnation method for hydrocarbon-selective catalytic reduction insert ignore into journalissuearticles values(HC-SCR); system. In this system, as a reducing agent ethyl alcohol and urea solution mixture was used. The NOx conversion efficiency of the system with using synthesized catalyst was analyzed. Chemical and structural properties of the used catalyst were examined by SEM, BET and XRD analyzes. In the SCR test system, the experiments were conducted in different temperatures ranged from 200 C to 300 C in constant gas hourly space velocity insert ignore into journalissuearticles values(GHSV); insert ignore into journalissuearticles values(30000 h-1);. The tests were carried out by using 2 cylinders, V-type diesel engine with constant speed insert ignore into journalissuearticles values(3000 rpm); under 3 different loads insert ignore into journalissuearticles values(1 kW, 3 kW and 5 kW);. These tests identified the effects of produced catalyst on NOx conversion rate of SCR system. In result, NOx conversion rates were measured between 66 % and 93 %. In 1 kW load, at 300 C, SV= 30000 h-1, 100% ethyl alcohol spraying the NOx conversion rate was reached approximately to 93% which is the highest point.
Keywords : HC SCR, NOX, CATALYST, DIESEL ENGINE, EMISSION