Journal
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
Volume 19, Issue 5, Pages 533-540Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/ijcre-2020-0240
Keywords
CoMn2O4; FeMn2O4; nanocomposite; NO conversion; selective catalytic reduction
Categories
Ask authors/readers for more resources
The study focused on the ammonia SCR reaction using Co-Mn spinel and its composite with Fe-Mn spinel as nanocatalysts, revealing that the nanocomposite exhibited better performance than the spinel in almost all conditions tested. Physicochemical properties of the nanocatalysts were analyzed using various techniques, highlighting the importance of catalyst development for favorable SCR processes.
One of the most significant aspects in selective catalytic reduction (SCR) of nitrogen oxides (NOx) is developing suitable catalysts by which the process occurs in a favorable way. At the present work SCR reaction by ammonia (NH3-SCR) was conducted using Co-Mn spinel and its composite with Fe-Mn spinel, as nanocatalysts. The nanocatalysts were fabricated through liquid routes and then their physicochemical properties such as phase composition, degree of agglomeration, particle size distribution, specific surface area and also surface acidic sites have been investigated by X-ray diffraction, Field Emission Scanning Electron Microscope, Energy-dispersive X-ray spectroscopy, energy dispersive spectroscopy mapping, Brunauer-Emmett-Teller, temperature-programmed reduction (H-2-TPR) and temperature-programmed desorption of ammonia (NH3-TPD) analysis techniques. The catalytic activity tests in a temperature window of 150-400 degrees C and gas hourly space velocities of 10,000, 18,000 and 30,000 h(-1) revealed that almost in all studied conditions, CoMn2O4/FeMn2O4 nanocomposite exhibited better performance in SCR reaction than CoMn2O4 spinel.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available