10.1021/ie500752n.s001
Bo Guo
Bo
Guo
Liping Chang
Liping
Chang
Kechang Xie
Kechang
Xie
Desulfurization
Behavior of Cerium–Iron
Mixed Metal Oxide Sorbent in
Hot Coal Gas
American Chemical Society
2014
sorbent C 2F
mud
iron oxide waste
H 2S concentrations
C 2F
Sorbent C 2F
breakthrough sulfur capacity
sulfurization
metal oxide sorbent C 2F
C 2F sorbent
2014-05-28 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Desulfurization_Behavior_of_Cerium_Iron_Mixed_Metal_Oxide_Sorbent_in_Hot_Coal_Gas/2288011
Ce–Fe mixed metal oxide sorbent
C2F3B850 was prepared by
using cerium oxide and red mud (an iron oxide waste from a steel company).
The ability of C2F3B850 (CeO<sub>2</sub>/red mud = 0.85) was evaluated
over a fixed-bed reactor in a simulated coal-derived gas. It was found
that the main active components of sorbent C2F3B850 were cerium and
iron oxides, the addition of red mud in CeO<sub>2</sub>-based sorbent
could decrease sulfurization temperature, and 500 °C is the best
temperature for sulfurization in the range of 500–700 °C.
After eight successive sulfurization–regeneration cycles over
C2F3B850, the regenerated sorbent still performed well with no apparent
deterioration. The average breakthrough sulfur capacity corresponding
to H<sub>2</sub>S concentrations below 50 ppmv is 9.97 (g S/100 g
sorbent). Sorbent C2F3B850 during successive sulfurization–regeneration
cycles was characterized by means of X-ray photoelectron spectroscopy,
X-ray diffraction, and nitrogen adsorption–desorption techniques.
The results reveal that the C2F3B850 sorbent with good durability,
high efficiency, and high mechanical strength is suitable for desulfurization
of hot coal-based gas in the chemical industry.