Application of PdCe-HMOR Catalyst as NOx CH₄-SCR System for Heavy-Duty Vehicles Moved by Natural Gas
Place of publication
Topics in Catalysis, July 2016, Volume 59, Issue 10–12, pp 982–986
Catalyst research; emissions reduction; low NOX engines
NOx; HC-SCR; Methane; MOR; Natural gas; NO2
Instrument used for NO, NO₂ and NOx measurements
ECO PHYSICS CLD 770 AL
In this work a cobalt-free zeolite-based catalyst formulation is proposed for NOx CH4-SCR towards a commercial application of after-treatment system for heavy-duty vehicles moved by natural gas (lean-gas burn engines). PdCe-HMOR catalyst was characterised by H2-TPR, DRS UV–Vis and TEM/EDS. The effect of [CH4]/[NO] in the gas feed was studied in order to assess the catalytic performance under simulated dynamic engine conditions. The catalyst was also tested with a representative gas feed of real exhaust gases of a heavy-duty vehicle’s engine (lean-burn conditions) powered by natural gas.