ИСТИНА

One of the main requirements for power plant and vehicle emission control technologies is a high efficiency in NOx, CO, hydrocarbons, and residual ammonia abatement in a wide temperature range (150–500 °C) [1]. In order to convert pollutants to harmless CO2, N2 and H2O complex systems consisting several separate catalytic blocks such as selective catalytic reduction catalyst (SCR), oxidation catalyst (OC), and ammonia-slip oxidation catalyst (ASC) are widely used. In addition to the complexity, the systems are also very expensive, since they contain Pt and Pd. In this study we demonstrate the potential opportunity to simplify and to reduce cost of emission control system by integration oxidation (OC, PF, and ASC) and reduction (SCR) catalytic functions in a single FeBeta||Mn-Ce/FeBeta dual-zone catalyst.