Combined SO sub 2 /NO sub x control using ferrouster dot EDTA and a secondary additive in a lime-based aqueous scrubber system. [Sodium ascorbate]
Abstract
Integration of NO{sub x} control into existing flue-gas desulfurization (FGD) systems addresses site-specific control requirements while minimizing retrofit difficulties. Argonne has studied the use of the metal-chelate additives, such as ferrous{center dot}EDTA in various wet FGD chemistries, to promote combined SO{sub 2}/NO{sub x} scrubbing. A major process problem is oxidation of the iron to the ferric species, leading to a significant decrease in NO{sub x}-removal capability. Argonne discovered a class of organic compounds that, when used with ferrous{center dot}EDTA in a sodium carbonate chemistry, could maintain high levels of NO{sub x} removal. However, those antioxidant/reducing agents are not effective in a lime-based chemistry, and a broader investigation of antioxidants was initiated. This paper discusses results of that investigation, which found a practical antioxidant/reducing agent capable of maintaining NO{sub x} removals of about 50% (compared with about 15% without the agent) in a lime-based FGD chemistry with FE(II){center dot}EDTA. 5 refs., 10 figs.
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Lab., IL (United States)
- Sponsoring Org.:
- USDOE; USDOE, Washington, DC (United States)
- OSTI Identifier:
- 6025595
- Report Number(s):
- ANL/CP-72760; CONF-911226-1
ON: DE92003419
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Conference
- Resource Relation:
- Conference: SO/sub 2/ control symposium, Washington, DC (United States), 3-6 Dec 1991
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; 54 ENVIRONMENTAL SCIENCES; ANTIOXIDANTS; FLUE GAS; DESULFURIZATION; NITROGEN OXIDES; AIR POLLUTION CONTROL; SULFUR DIOXIDE; ADDITIVES; CALCIUM HYDROXIDES; COMBINED SOXNOX PROCESSES; EDTA; IRON; PYROGALLOL; SCRUBBERS; SODIUM CARBONATES; UREA; ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; AMIDES; AMINO ACIDS; AROMATICS; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CARBONIC ACID DERIVATIVES; CARBOXYLIC ACIDS; CHALCOGENIDES; CHELATING AGENTS; CHEMICAL REACTIONS; CONTROL; DEVELOPERS; ELEMENTS; EQUIPMENT; GASEOUS WASTES; HYDROGEN COMPOUNDS; HYDROXIDES; HYDROXY COMPOUNDS; METALS; NITROGEN COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHENOLS; POLLUTION CONTROL; POLLUTION CONTROL EQUIPMENT; POLYPHENOLS; SODIUM COMPOUNDS; SULFUR COMPOUNDS; SULFUR OXIDES; TRANSITION ELEMENTS; WASTES; 010800* - Coal, Lignite, & Peat- Waste Management; 200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions; 540120 - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-)
Citation Formats
Mendelsohn, M H, Livengood, C D, and Harkness, J B.L. Combined SO sub 2 /NO sub x control using ferrouster dot EDTA and a secondary additive in a lime-based aqueous scrubber system. [Sodium ascorbate]. United States: N. p., 1991.
Web.
Mendelsohn, M H, Livengood, C D, & Harkness, J B.L. Combined SO sub 2 /NO sub x control using ferrouster dot EDTA and a secondary additive in a lime-based aqueous scrubber system. [Sodium ascorbate]. United States.
Mendelsohn, M H, Livengood, C D, and Harkness, J B.L. 1991.
"Combined SO sub 2 /NO sub x control using ferrouster dot EDTA and a secondary additive in a lime-based aqueous scrubber system. [Sodium ascorbate]". United States. https://www.osti.gov/servlets/purl/6025595.
@article{osti_6025595,
title = {Combined SO sub 2 /NO sub x control using ferrouster dot EDTA and a secondary additive in a lime-based aqueous scrubber system. [Sodium ascorbate]},
author = {Mendelsohn, M H and Livengood, C D and Harkness, J B.L.},
abstractNote = {Integration of NO{sub x} control into existing flue-gas desulfurization (FGD) systems addresses site-specific control requirements while minimizing retrofit difficulties. Argonne has studied the use of the metal-chelate additives, such as ferrous{center dot}EDTA in various wet FGD chemistries, to promote combined SO{sub 2}/NO{sub x} scrubbing. A major process problem is oxidation of the iron to the ferric species, leading to a significant decrease in NO{sub x}-removal capability. Argonne discovered a class of organic compounds that, when used with ferrous{center dot}EDTA in a sodium carbonate chemistry, could maintain high levels of NO{sub x} removal. However, those antioxidant/reducing agents are not effective in a lime-based chemistry, and a broader investigation of antioxidants was initiated. This paper discusses results of that investigation, which found a practical antioxidant/reducing agent capable of maintaining NO{sub x} removals of about 50% (compared with about 15% without the agent) in a lime-based FGD chemistry with FE(II){center dot}EDTA. 5 refs., 10 figs.},
doi = {},
url = {https://www.osti.gov/biblio/6025595},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}