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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]

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}
}

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