Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Three way catalyst


The Effect of Zr loading on the Performance of Honeycomb Monolithic catalyst for the Removal of NO , CO and Hydrocarbon from Exhaust Gas

Hussain Khalaf; Shahrazed R.Rauof; Abdul Halim Abdul K.Mohammed

Engineering and Technology Journal, 2009, Volume 27, Issue 10, Pages 1915-1936

Catalytic monolith reactors have numerous applications in industrial
processes and as technical devices, so the focus is set specially on automotive catalytic converters. In present work the experimental and theoretical investigation has been carried out to study the performance of monolith reactor on the oxidation and reduction of exhaust gas (NO, CO, HC, O2 and H2O) which emitted from gasoline generator. Commercial ceramic monolith catalyst and catalyst loaded on the commercial with
Zr were used in the present work. A laboratory unit was constructed for this purpose where a versatile stainless steel reactor of 0.02 m inside diameter and 0.2 m height was used. The catalytic performance of the catalysts was studied in the following operating conditions: gas hourly space velocity in the range 17.69 – 44.23s-1, reaction temperature in the range 373 – 673 K, bed length in the range 0.075 – 0.15 m and
at atmospheric pressure and constant air / fuel ratio (14.6). The results show that the conversion of NO, CO, HC, O2 and H2O are slightly changed with the bed length, . The conversion of exhaust gas reactant enhances in presence of water (wet condition) rather than in the absence of water (dry condition) and increases with the increasing reaction temperature and decreases with increasing gas space
velocity. Commercial catalyst loaded with 0.4% Zr gives the higher performance for all components reaction