In this section, you can access to the latest technical information related to the FUTURE project topic.

Low temperature SCR reaction over Nano-Structured Fe-Mn Oxides: Characterization, performance, and kinetic study

Fe-Mn oxides was prepared by thermal activation of Mn-rich limonite at different temperatures, and then developed as catalysts for low-temperature NH3-SCR. The obtained samples were characterized by XRD, XRF, TEM, XPS, BET, H2-TPR, NH3-TPD, NH3-SCR model reaction and in situ DRIFTS. The results indicated that Fe-Mn oxides catalyst derived from the thermal treatment at 300?°C (H300) exhibited an excellent NO conversion which was higher than 90% at a temperature range from 130 to 300?°C. The large surface area (95.9?m2/g), large amount of acid sites, suitable reduction behavior, and abundant surface hydroxyl positively responsed to the excellent performance of H300 for NH3-SCR. The results of in situ DRIFTS and kinetic study demonstrated that when the SCR reaction temperature reached to 100?°C, both the Eley–Rideal mechanism and the Langmuir-Hinshelwood mechanism might happen over H300. However, the Langmuir-Hinshelwood mechanism could be approximately neglected at higher reaction temperatures. This study favors the understanding of NH3-SCR mechanism of the prepared provides Fe-Mn oxides and explores new application field for Mn-rich limonite in low-temperature NH3-SCR.

» Author: Changai Zhang, Tianhu Chen, Haibo Liu, Dong Chen, Bin Xu, Chengsong Qing

» Reference: 10.1016/j.apsusc.2018.07.019

» Publication Date: 01/11/2018

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es