A new series of Mn-based catalysts (Mn-TiO2, Ce-Mn-TiO2, Mn-TiO2-SO42–, and Ce-Mn-TiO2-SO42–) were successfully elaborated using the sol–gel method associated with supercritical drying approach for low-temperature NO-SCR by NH3. The physicochemical properties aerogel powders examined XRD, N2-Physisorption at 77 K, NH3-TPD, H2-TPR, DRUV-Vis spectroscopy. It was shown that all develop essentially...

The control of flue gas emission in thermal power plants has been a topic concern. Selective catalytic reduction technology widely used as an effective treatment technology. However, precisely controlling the amount ammonia injected remains challenge. Too much not only causes secondary pollution but also corrodes reactor equipment, while too little does effectively reduce NOx content. In recent...

Spent selective catalytic reduction (SCR) catalysts are defined as hazardous wastes because of the toxicity V2O5 to ecological environment. Recycling and TiO2 from spent SCR has strikingly social environmental benefits well economic values. In this work, a “NaOH ?+ ?Na2CO3” system was employed recycle 99.2% anatase/rutile nanospheres with nanospherical morphology by simple sintering-leaching pr...

Platinum’s (Pt) poisoning effect on Cu-SSZ-13 and its regeneration were investigated. The Pt enhanced the parallel reactions, such as NH3 oxidation NO which decreased deNOx activities. In temperature range below 330 °C, deactivation of by was primarily caused overconsumption NH3, due to NH3-selective reaction, while formation NOx in into NO2 further aggravated degradation when above 460 °C. non...