Journal
ACS OMEGA
Volume 5, Issue 30, Pages 19277-19284Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.0c02877
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [51568024]
Ask authors/readers for more resources
In this study, a series of Mn-modified HZSM-5 samples were synthesized using the solid-state ion-exchange method, and the effects of the manganese loading amount, calcination temperature, reaction temperature, and gas components on mercury removal efficiency were systematically explored. Given that the mass ratio of HZSM-5 to KMnO4 and the calcination and reaction temperatures were set to 10:2.6 and 400 and 150 degrees C, Hg-0 removal efficiency could reach a peak value of 96.4% when exposed to the flue gas containing 5% O-2 and N-2 as the balance. Among the various gas components, O-2 and NO showed a positive impact on Hg-0 removal; Hg-0 removal efficiency could even reach ca. 100% when O-2 and NO were simultaneously introduced. In contrast, the introduction of SO2 led to a decline of Hg-0 removal efficiency by ca. 16%. In addition, Hg-0 removal efficiency could still retain ca. 92% of that for the fresh sample after six regeneration and reuse cycles, which is indicative of a satisfactory stability and renewability. Finally, Mars-Maessen mechanisms dominated in the mercury chemical adsorption process.
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