<abstract xmlns="http://www.w3.org/1999/xhtml">

In this paper, the research progress of ammonium bisulfate (ABS) volatilization in coal-fired power plants the SCR denitrification process was reviewed. Combination with self-made experiments, SEM, flue gas analyzer and TG-DTG curves of ABS and ion chromatography. The volatilization and condensation characteristics of ABS were investigated carefully. Results show that as the temperature increased by 50 oC, the ABS/AS volatilization rate increased by an order of magnitude. The decomposition process of ABS should have a two-step reaction. The reaction in the initial volatiliza-tion stage is ABS dehydration turned into (NH4)2S2O7. The reaction in the rapid volat-ilization stage is (NH4)2S2O7 decomposed into NH3, N2, SO2 and H2O. There is an inter-section in the reaction temperature range (especially 300 oC) between the two-step re-action. This research provides an experimental basis for temperature control of ABS to avoid air pre-heater fouling.
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In this paper, the research progress of ammonium bisulfate (ABS) volatilization in coal-fired power plants the SCR denitrification process was reviewed. Combination with self-made experiments, SEM, flue gas analyzer and TG-DTG curves of ABS and ion chromatography. The volatilization and condensation characteristics of ABS were investigated carefully. Results show that as the temperature increased by 50 oC, the ABS/AS volatilization rate increased by an order of magnitude. The decomposition process of ABS should have a two-step reaction. The reaction in the initial volatiliza-tion stage is ABS dehydration turned into (NH4)2S2O7. The reaction in the rapid volat-ilization stage is (NH4)2S2O7 decomposed into NH3, N2, SO2 and H2O. There is an inter-section in the reaction temperature range (especially 300 oC) between the two-step re-action. This research provides an experimental basis for temperature control of ABS to avoid air pre-heater fouling.

Experimental research on the volatilization and condensation of ammonium bisulfate as SCR byproduct

Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control

Department of Environmental Science and Engineering

Inner Mongolia University of Science and Technology

MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution 4.0 International License.

In this paper, the research progress of ammonium bisulfate (ABS) volatilization in coal-fired power plants the SCR denitrification process was reviewed....

Experimental research on the volatilization and condensation of ammonium bisulfate as SCR byproduct

Pubblicato online: 26 dic 2022

Pagine: 30 - 38

DOI: https://doi.org/10.2478/pjct-2022-0026

Parole chiave
Ammonium bisulfate (ABS), influencing factors, volatilization rate, condensation pattern

© 2022 Kunling Jiao et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Experimental research on the volatilization and condensation of ammonium bisulfate as SCR byproduct

Pubblicato online: 26 dic 2022

Pagine: 30 - 38

DOI: https://doi.org/10.2478/pjct-2022-0026

Parole chiaveAmmonium bisulfate (ABS), influencing factors, volatilization rate, condensation pattern

© 2022 Kunling Jiao et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Parole chiave
Ammonium bisulfate (ABS), influencing factors, volatilization rate, condensation pattern