Use of ferrous cysteine and cysteine derivatives for the removal of NO/sub x/ and SO/sub 2/ from flue gas
Conference
·
OSTI ID:6544138
The use of ferrous complexes of cysteine and its derivatives for the removal of NO and SO/sub 2/ in wet flue gas clean-up systems is reported. Compared to conventional chelates such as EDTA, these thioamino acids not only can stabilize ferrous ion in alkaline solutions to promote the absorption of NO, but are also capable of rapidly reducing any ferric ions formed during the scrubbing process back to ferrous ions so that continual absorption of NO can be achieved. In the case of ferrous cysteine, the absorbed NO is further reduced to form N/sub 2/. The disulfide form of the thioamino acids produced upon oxidation can be conveniently reduced by SO/sub 2/ and H/sub 2/S to regenerate the starting thioamino acids, thus making possible the recycling of the reagents. The effects of pH, O/sub 2/, SO/sub 2/, and S/sub 2/O/sub 3//sup 2 -/ on the absorption of NO by ferrous thioamino acid complexes will also be discussed.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6544138
- Report Number(s):
- LBL-23198; CONF-870323-5; ON: DE87009331
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use of ferrous chelates of SH-containing amino acids and peptides for the removal of NO/sub x/ and SO/sub 2/ from flue gas
Combined NO/sub x//SO/sub 2/ removal from flue gas using ferrous chelates of SH-containing amino acids and alkali
Combined NO/sub x//SO/sub 2/ removal from flue gas using ferrous chelates of SH-containing amino acids and alkali
Journal Article
·
Mon Oct 31 23:00:00 EST 1988
· Ind. Eng. Chem. Res.; (United States)
·
OSTI ID:6296442
Combined NO/sub x//SO/sub 2/ removal from flue gas using ferrous chelates of SH-containing amino acids and alkali
Conference
·
Tue Mar 31 23:00:00 EST 1987
·
OSTI ID:6482748
Combined NO/sub x//SO/sub 2/ removal from flue gas using ferrous chelates of SH-containing amino acids and alkali
Conference
·
Wed Dec 31 23:00:00 EST 1986
· Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)
·
OSTI ID:5931285
Related Subjects
01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINO ACIDS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATING AGENTS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CYSTEINE
DENITRIFICATION
DESULFURIZATION
FLUE GAS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PH VALUE
SORPTIVE PROPERTIES
SULFIDES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SURFACE PROPERTIES
THIOLS
TRANSITION ELEMENT COMPOUNDS
WASTES
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINO ACIDS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATING AGENTS
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CYSTEINE
DENITRIFICATION
DESULFURIZATION
FLUE GAS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PH VALUE
SORPTIVE PROPERTIES
SULFIDES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SURFACE PROPERTIES
THIOLS
TRANSITION ELEMENT COMPOUNDS
WASTES