Manganese-based catalysts were considered the most promising catalysts for low-temperature selective catalytic reduction (NH3-SCR) reactions. In this work, a series of Mn3Fe2NbyOx catalysts were synthesized by co-precipitation method for low-temperature NH3-SCR and SO2 tolerance tests.
RESULTS
The catalysts were characterized by BET, SEM, XRD, XPS, H2-TPR, and NH3-TPD. Mn3Fe2Nb0.01Ox exhibited exceptionally high activity with a conversion of almost 100% from 80°C to 240°C, and a NO conversion of more than 75% at 40°C, while the NO conversion at 140°C in the presence of 100 ppm SO2 remained above 90% for 4 h.
期刊介绍:
Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.