Effect of N (N=Fe, Co, Ni, Cu, Ce) loaded on blast furnace slag and its
application in low-temperature NH3-SCR
Abstract
In order to control NOx in low-temperature flue gas in non-power
industry and reduce the preparation cost of denitration catalyst. Using
low-value solid waste, blast furnace slag, as raw material. After
cooling, drying and grinding, the blast furnace slag becomes a powder
with considerable fineness and meets the requirements of activity index,
which is called GGBS (ground granulated blast furnace slag). Using GGBS
as denitration catalyst carrier, and the active component n (n = Fe, Co,
Ni, Cu and Ce) was loaded on Mn-based GGBS catalyst by impregnation
method. It was studied that the effects of different active components
on denitration and sulfur resistance of Mn-based GGBS catalyst. The
denitration mechanism was analyzed by BET (Brunner-Emmet-Teller
measurements), XRD (X-ray diffraction), XPS (X-ray photoelectron
spectroscopy), SEM (scanning electron microscope) and FT-IR (Fourier
transform infrared spectroscopy). The results show that: Mn-Ce/GGBS
catalyst has better denitration and sulfur resistance.