Promoting Effect of Triglyme on Lean NO Reduction Over Ag/AlO.

The highly oxygenated hydrocarbon triethylene glycol dimethyl ether or triglyme (CHO-(CHO-)CH) was found to efficiently reduce NO under lean conditions over Ag/AlO, but gave a low NO conversion over Cu-ZSM-5. Furthermore, triglyme showed an extraordinary promoting effect when added together with propene as reducing agent for NO over Ag/AlO at low temperature. This is most likely due to that triglyme promotes the activation of propene. Graphical Abstract: [Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]