Abstract. Effective control and removal of nitrogen oxides (NOx) emission from vehicles exhausts under leanburn condition is one of the most important targets in scientific research of environmental protection. A comprehensive introduction of NOx storage and reduction (NSR), the most promising lean-NOx control technology, is given including the sum-up of NSR materials, catalytic activity an…
Abstract. Mixed oxide catalysts derived from Mg–Co–Al–La layered double hydroxide (LDH) with various Mg:Co:Al:La ratios were prepared by co-precipitation and calcination. Their catalytic performance as heterogeneous base catalysts for the transesterification of canola oil with ethanol to produce biodiesel was compared over 5 h in a batch reactor at 473 K. Amending the catalyst by the …
Abstract. The current research investigated N2O decompositions over the catalysts Ir/Fe-USY, Fe-USY and Ir-USY under various conditions, and found that a trace amount of iridium (0.1 wt%) incorporated into Fe-USY significantly enhanced N2O decomposition activity. The decomposition of N2O over this catalyst (Ir/Fe- USY-0.1%) was also partly assisted by NO present in the gas mixture, in contr…