Selective Catalytic Reduction of NO in Diesel Exhaust over Anodic Alumina Catalyst

Simple Kinetic Modeling of Selective Reduction of Nitric Oxide in Diesel Exhaust Over Cu-Zn/ZSM-5 Monolithic Catalyst

Selective Catalytic Reduction of No Byc3h6 over a Commercial Automotive Iridium Based Catalyst

Ir/TiO2 coated on cordierite monolith was investigated in the selective catalytic reduction (SCR) of NO with propene using a broad temperature range and simulated diesel exhaust gas conditions under the standard mixture (1000 vpm NO, 2000 vpm C3H6, 500 vpm CO, 10 vol.% O2). The physicochemical characterization of the commercial catalyst showed that the BET surface area of the fresh and aged sam...

Selective Catalytic Reduction of CuO/SiO2 Nano-composites towards NO Reduction in Gas-phase

The xerogel samples were prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS) by the sol-gel method. In this investigation, a new molar ratio of H2O/TEOS was determined to be 11.7. Also, the necessary amounts of tri-hydrated copper nitrate and penta-hydrated copper sulfate were added to the solution in such a manner that the concentration of the copper oxide in final solut...

Cobalt-based alumina pillared zirconium phosphate catalysts for the selective catalytic reduction of NO by propane.

A series of cobalt containing alumina pillared zirconium phosphate materials have been prepared by ion exchange or by impregnation, and fully characterised. The catalytic behaviour of these materials in the selective catalytic reduction of NO by propane, in excess of oxygen, at temperatures ranging between 350 and 550 degrees C, has been also evaluated. A maximum NO conversion close to 14% is o...

Selective Catalytic Reduction: Exhaust aftertreatment for reducing nitrogen oxide emissions

Ways to reduce nitrogen oxide emissions In order to comply with the increasingly tough emission standards worldwide, engine manufacturers are forced not only to substantially reduce emissions of particulate matter (PM), but also emissions of nitrogen oxides. The main approach pursued by MTU is low-emission combustion, in other words an internal engine solution. However, this means taking into a...